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<h3 style="margin-top: 20px; margin-bottom: 10px;">
Ben Gamari pushed to branch wip/tsan/cmm
at <a href="https://gitlab.haskell.org/ghc/ghc" style="color: #1068bf; text-decoration: none;">Glasgow Haskell Compiler / GHC</a>
</h3>
<h4 style="margin-top: 10px; margin-bottom: 10px;">
Commits:
</h4>
<ul>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3c3e5c03c9890ba33bd2ac7239161738584dc473" style="color: #1068bf; text-decoration: none;">3c3e5c03</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2021-12-17T21:20:57-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Regression test for renamer/typechecker performance (#20261)
We use the parser generated by stack to ensure reproducibility
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5d5620bc1001c6a0689c57c23272b398ae9937d1" style="color: #1068bf; text-decoration: none;">5d5620bc</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2021-12-17T21:21:32-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Change isUnliftedTyCon to marshalablePrimTyCon (#20401)
isUnliftedTyCon was used in three places: Ticky, Template Haskell
and FFI checks.
It was straightforward to remove it from Ticky and Template Haskell.
It is now used in FFI only and renamed to marshalablePrimTyCon.
Previously, it was fetching information from a field
in PrimTyCon called is_unlifted. Instead, I've changed the code
to compute liftedness based on the kind.
isFFITy and legalFFITyCon are removed. They were only referred from
an old comment that I removed.
There were three functions to define a PrimTyCon, but the only difference
was that they were setting is_unlifted to True or False.
Everything is now done in mkPrimTyCon.
I also added missing integer types in Ticky.hs, I think it was an oversight.
Fixes #20401
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9d77976d02836594c74a21e170f763b42048fd04" style="color: #1068bf; text-decoration: none;">9d77976d</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2021-12-17T21:22:08-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Format metric results with comma separator
As noted in #20763 the way the stats were printed was quite hard for a
human to compare. Therefore we now insert the comma separator so that
they are easier to compare at a glance.
Before:
```
Baseline
Test Metric value New value Change
-----------------------------------------------------------------------------
Conversions(normal) run/alloc 107088.0 107088.0 +0.0%
DeriveNull(normal) run/alloc 112050656.0 112050656.0 +0.0%
InlineArrayAlloc(normal) run/alloc 1600040712.0 1600040712.0 +0.0%
InlineByteArrayAlloc(normal) run/alloc 1440040712.0 1440040712.0 +0.0%
InlineCloneArrayAlloc(normal) run/alloc 1600040872.0 1600040872.0 +0.0%
MethSharing(normal) run/alloc 480097864.0 480097864.0 +0.0%
T10359(normal) run/alloc 354344.0 354344.0 +0.0%
```
After
```
Baseline
Test Metric value New value Change
----------------------------------------------------------------------------------
Conversions(normal) run/alloc 107,088 107,088 +0.0%
DeriveNull(normal) run/alloc 112,050,656 112,050,656 +0.0%
InlineArrayAlloc(normal) run/alloc 1,600,040,712 1,600,040,712 +0.0%
InlineByteArrayAlloc(normal) run/alloc 1,440,040,712 1,440,040,712 +0.0%
InlineCloneArrayAlloc(normal) run/alloc 1,600,040,872 1,600,040,872 +0.0%
MethSharing(normal) run/alloc 480,097,864 480,097,864 +0.0%
T10359(normal) run/alloc 354,344 354,344 +0.0%
```
Closes #20763
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3f31bfe8c3c2250391ceb58ad267e0845b53bb29" style="color: #1068bf; text-decoration: none;">3f31bfe8</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2021-12-17T21:22:48-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Perf: inline exprIsCheapX
Allow specialization for the ok_app predicate.
Perf improvements:
Baseline
Test Metric value New value Change
-----------------------------------------------------------------------------
ManyAlternatives(normal) ghc/alloc 747317244.0 746444024.0 -0.1%
ManyConstructors(normal) ghc/alloc 4005046448.0 4001548792.0 -0.1%
MultiLayerModules(normal) ghc/alloc 3063361000.0 3063178472.0 -0.0%
MultiLayerModulesRecomp(normal) ghc/alloc 894208428.0 894252496.0 +0.0%
PmSeriesG(normal) ghc/alloc 48021692.0 47901592.0 -0.3%
PmSeriesS(normal) ghc/alloc 61322504.0 61149008.0 -0.3%
PmSeriesT(normal) ghc/alloc 90879364.0 90609048.0 -0.3%
PmSeriesV(normal) ghc/alloc 60155376.0 59983632.0 -0.3%
T10421(normal) ghc/alloc 112820720.0 112517208.0 -0.3%
T10421a(normal) ghc/alloc 78783696.0 78557896.0 -0.3%
T10547(normal) ghc/alloc 28331984.0 28354160.0 +0.1%
T10858(normal) ghc/alloc 180715296.0 180226720.0 -0.3%
T11195(normal) ghc/alloc 284139184.0 283981048.0 -0.1%
T11276(normal) ghc/alloc 137830804.0 137688912.0 -0.1%
T11303b(normal) ghc/alloc 44080856.0 43956152.0 -0.3%
T11374(normal) ghc/alloc 249319644.0 249059288.0 -0.1%
T11545(normal) ghc/alloc 971507488.0 971146136.0 -0.0%
T11822(normal) ghc/alloc 131410208.0 131269664.0 -0.1%
T12150(optasm) ghc/alloc 78866860.0 78762296.0 -0.1%
T12227(normal) ghc/alloc 494467900.0 494138112.0 -0.1%
T12234(optasm) ghc/alloc 56781044.0 56588256.0 -0.3%
T12425(optasm) ghc/alloc 90462264.0 90240272.0 -0.2%
T12545(normal) ghc/alloc 1694316588.0 1694128448.0 -0.0%
T12707(normal) ghc/alloc 955665168.0 955005336.0 -0.1%
T13035(normal) ghc/alloc 101875160.0 101713312.0 -0.2%
T13056(optasm) ghc/alloc 366370168.0 365347632.0 -0.3%
T13253(normal) ghc/alloc 333741472.0 332612920.0 -0.3%
T13253-spj(normal) ghc/alloc 124947560.0 124427552.0 -0.4%
T13379(normal) ghc/alloc 358997996.0 358879840.0 -0.0%
T13701(normal) ghc/alloc 2400391456.0 2399956840.0 -0.0%
T13719(normal) ghc/alloc 4193179228.0 4192476392.0 -0.0%
T14052(ghci) ghc/alloc 2734741552.0 2735731808.0 +0.0%
T14052Type(ghci) ghc/alloc 7323235724.0 7323042264.0 -0.0%
T14683(normal) ghc/alloc 2990457260.0 2988899144.0 -0.1%
T14697(normal) ghc/alloc 363606476.0 363452952.0 -0.0%
T15164(normal) ghc/alloc 1291321780.0 1289491968.0 -0.1%
T15304(normal) ghc/alloc 1277838020.0 1276208304.0 -0.1%
T15630(normal) ghc/alloc 161074632.0 160388136.0 -0.4%
T16190(normal) ghc/alloc 276567192.0 276235216.0 -0.1%
T16577(normal) ghc/alloc 7564318656.0 7535598656.0 -0.4%
T16875(normal) ghc/alloc 34867720.0 34752440.0 -0.3%
T17096(normal) ghc/alloc 288477360.0 288156960.0 -0.1%
T17516(normal) ghc/alloc 1712777224.0 1704655496.0 -0.5%
T17836(normal) ghc/alloc 1092127336.0 1091709880.0 -0.0%
T17836b(normal) ghc/alloc 52083516.0 51954056.0 -0.2%
T17977(normal) ghc/alloc 44552228.0 44425448.0 -0.3%
T17977b(normal) ghc/alloc 40540252.0 40416856.0 -0.3%
T18140(normal) ghc/alloc 81908200.0 81678928.0 -0.3%
T18223(normal) ghc/alloc 1166459176.0 1164418104.0 -0.2%
T18282(normal) ghc/alloc 131123648.0 130740432.0 -0.3%
T18304(normal) ghc/alloc 86486796.0 86223088.0 -0.3%
T18478(normal) ghc/alloc 746029440.0 745619968.0 -0.1%
T18698a(normal) ghc/alloc 337037580.0 336533824.0 -0.1%
T18698b(normal) ghc/alloc 398324600.0 397696400.0 -0.2%
T18923(normal) ghc/alloc 68496432.0 68286264.0 -0.3%
T1969(normal) ghc/alloc 760424696.0 759641664.0 -0.1%
T19695(normal) ghc/alloc 1421672472.0 1413682104.0 -0.6%
T20049(normal) ghc/alloc 88601524.0 88336560.0 -0.3%
T3064(normal) ghc/alloc 190808832.0 190659328.0 -0.1%
T3294(normal) ghc/alloc 1604483120.0 1604339080.0 -0.0%
T4801(normal) ghc/alloc 296501624.0 296388448.0 -0.0%
T5030(normal) ghc/alloc 364336308.0 364206240.0 -0.0%
T5321FD(normal) ghc/alloc 270688492.0 270386832.0 -0.1%
T5321Fun(normal) ghc/alloc 300860396.0 300559200.0 -0.1%
T5631(normal) ghc/alloc 575822760.0 575579160.0 -0.0%
T5642(normal) ghc/alloc 470243356.0 468988784.0 -0.3%
T5837(normal) ghc/alloc 35936468.0 35821360.0 -0.3%
T6048(optasm) ghc/alloc 102587024.0 102222000.0 -0.4%
T783(normal) ghc/alloc 386539204.0 386003344.0 -0.1%
T9020(optasm) ghc/alloc 247435312.0 247324184.0 -0.0%
T9198(normal) ghc/alloc 47170036.0 47054840.0 -0.2%
T9233(normal) ghc/alloc 677186820.0 676550032.0 -0.1%
T9630(normal) ghc/alloc 1456411516.0 1451045736.0 -0.4%
T9675(optasm) ghc/alloc 427190224.0 426812568.0 -0.1%
T9872a(normal) ghc/alloc 1704660040.0 1704681856.0 +0.0%
T9872b(normal) ghc/alloc 2180109488.0 2180130856.0 +0.0%
T9872c(normal) ghc/alloc 1760209640.0 1760231456.0 +0.0%
T9872d(normal) ghc/alloc 501126052.0 500973488.0 -0.0%
T9961(normal) ghc/alloc 353244688.0 353063104.0 -0.1%
TcPlugin_RewritePerf(normal) ghc/alloc 2387276808.0 2387254168.0 -0.0%
WWRec(normal) ghc/alloc 588651140.0 587684704.0 -0.2%
hard_hole_fits(normal) ghc/alloc 492063812.0 491798360.0 -0.1%
hie002(normal) ghc/alloc 9334355960.0 9334396872.0 +0.0%
parsing001(normal) ghc/alloc 537410584.0 537421736.0 +0.0%
geo. mean -0.2%
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e04878b01f0d3fe74b57ff89505daf2512b66941" style="color: #1068bf; text-decoration: none;">e04878b0</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2021-12-17T21:23:23-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Use correct metrics baseline
It turns out there was already a function in the CI script to correctly
set the baseline for performance tests but it was just never called. I
now call it during the initialisation to set the correct baseline.
I also made the make testsuite driver take into account the
PERF_BASELINE_COMMIT environment variable
Fixes #20811
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1327c176ca33f3ac989b99d81d4b3e79106b9fd4" style="color: #1068bf; text-decoration: none;">1327c176</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2021-12-17T21:23:58-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add regression test for T20189
Closes #20189
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fc9b17552ce8cb93ab4101e1daf3dafcdbb06179" style="color: #1068bf; text-decoration: none;">fc9b1755</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2021-12-17T21:24:33-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix documentation formatting in Language.Haskell.TH.CodeDo
Fixes #20543
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/abef93f3596b048fbd71afafbd5fddffa877004c" style="color: #1068bf; text-decoration: none;">abef93f3</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2021-12-17T21:24:33-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Expand documentation for MulArrowT constructor
Fixes #20812
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/94c3ff66a498df778cf32f68198775511b435704" style="color: #1068bf; text-decoration: none;">94c3ff66</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2021-12-17T21:25:09-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Binary: make withBinBuffer safe
With this patch, withBinBuffer will construct a ByteString that
properly captures the reference to the BinHandle internal
MutableByteArray#, making it safe to convert a BinHandle to ByteString
and use that ByteString outside the continuation.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a3552934a559ed8813dabc640f5dec0689d62f9e" style="color: #1068bf; text-decoration: none;">a3552934</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2021-12-17T21:25:45-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Demand: `Eq DmdType` modulo `defaultFvDmd` (#20827)
Fixes #20827 by filtering out any default free variable demands (as per
`defaultFvDmd`) prior to comparing the assocs of the `DmdEnv`.
The details are in `Note [Demand type Equality]`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9529d859fef6fe353081588ba96257519a20728a" style="color: #1068bf; text-decoration: none;">9529d859</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2021-12-17T21:26:24-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Perf: avoid using (replicateM . length) when possible
Extracted from !6622
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/887d8b4c409c06257a63751e4e84c86ddf5cc874" style="color: #1068bf; text-decoration: none;">887d8b4c</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2021-12-17T21:26:59-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Ensure that -dcore-lint is not set for compiler performance tests
This place ensures that the default -dcore-lint option is disabled by
default when collect_compiler_stats is used but you can still pass
-dcore-lint as an additional option (see T1969 which tests core lint
performance).
Fixes #20830
-------------------------
Metric Decrease:
PmSeriesS
PmSeriesT
PmSeriesV
T10858
T11195
T11276
T11374
T11822
T14052
T14052Type
T17096
T17836
T17836b
T18478
T18698a
T18698b
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5ff47ff5bb815e18e03fab42ffae7d735ea70976" style="color: #1068bf; text-decoration: none;">5ff47ff5</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2021-12-21T01:46:00-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>codeGen: Introduce flag to bounds-check array accesses
Here we introduce code generator support for instrument array primops
with bounds checking, enabled with the `-fcheck-prim-bounds` flag.
Introduced to debug #20769.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d47bb1099f388b68116dabf16afb1c551eb9588a" style="color: #1068bf; text-decoration: none;">d47bb109</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2021-12-21T01:46:00-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Add optional bounds checking in out-of-line primops
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8ea79a16c57a9fcfd091ab7f4aa457e100fa42b5" style="color: #1068bf; text-decoration: none;">8ea79a16</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2021-12-21T01:46:00-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Rename -fcatch-bottoms to -fcatch-nonexhaustive-cases
As noted in #20601, the previous name was rather misleading.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/00b55bfcd982bed2c9fc02d9c3ca66ba9d41bb5c" style="color: #1068bf; text-decoration: none;">00b55bfc</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2021-12-21T01:46:00-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Introduce -dlint flag
As suggested in #20601, this is a short-hand for enabling the usual
GHC-internal sanity checks one typically leans on when debugging runtime
crashes.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9728d6c2b62f38f79c8833b1819200985fe173dc" style="color: #1068bf; text-decoration: none;">9728d6c2</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2021-12-21T01:46:39-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Give plugins a better interface (#17957)
Plugins were directly fetched from HscEnv (hsc_static_plugins and
hsc_plugins). The tight coupling of plugins and of HscEnv is undesirable
and it's better to store them in a new Plugins datatype and to use it in
the plugins' API (e.g. withPlugins, mapPlugins...).
In the process, the interactive context (used by GHCi) got proper
support for different static plugins than those used for loaded modules.
Bump haddock submodule
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9bc5ab64de16f786ede145755d52f5452af453f9" style="color: #1068bf; text-decoration: none;">9bc5ab64</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2021-12-21T01:47:17-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use libc++ instead of libstdc++ on openbsd in addition to freebsd
This is not entirely accurate because some openbsd architectures use
gcc. Yet we don't have ghc ported to them and thus the approximation
is good enough.
Fixes ghcilink006 test
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f92c9c0d40d0cd5efe2bc08dbfbf02cf7bc2ed3e" style="color: #1068bf; text-decoration: none;">f92c9c0d</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2021-12-21T01:47:55-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Only use -ldl conditionally to fix T3807
OpenBSD doesn't have this library and so the linker complains:
ld.lld: error: unable to find library -ldl
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ff657a81ae5ebd4ea4628ca8ebc88dce3ecbe0ef" style="color: #1068bf; text-decoration: none;">ff657a81</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2021-12-21T01:48:32-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Mark `linkwhole` test as expected broken on OpenBSD per #20841
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1a596d069991255e196621d06a046f60359f3129" style="color: #1068bf; text-decoration: none;">1a596d06</a></strong>
<div>
<span>by doyougnu</span>
<i>at 2021-12-22T00:12:27-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Cmm: DynFlags to CmmConfig refactor
add files GHC.Cmm.Config, GHC.Driver.Config.Cmm
Cmm: DynFlag references --> CmmConfig
Cmm.Pipeline: reorder imports, add handshake
Cmm: DynFlag references --> CmmConfig
Cmm.Pipeline: DynFlag references --> CmmConfig
Cmm.LayoutStack: DynFlag references -> CmmConfig
Cmm.Info.Build: DynFlag references -> CmmConfig
Cmm.Config: use profile to retrieve platform
Cmm.CLabel: unpack NCGConfig in labelDynamic
Cmm.Config: reduce CmmConfig surface area
Cmm.Config: add cmmDoCmmSwitchPlans field
Cmm.Config: correct cmmDoCmmSwitchPlans flag
The original implementation dispatches work in cmmImplementSwitchPlans
in an `otherwise` branch, hence we must add a not to correctly dispatch
Cmm.Config: add cmmSplitProcPoints simplify Config
remove cmmBackend, and cmmPosInd
Cmm.CmmToAsm: move ncgLabelDynamic to CmmToAsm
Cmm.CLabel: remove cmmLabelDynamic function
Cmm.Config: rename cmmOptDoLinting -> cmmDoLinting
testsuite: update CountDepsAst CountDepsParser
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d7cc8f1915c9617b6d4256fd1e483c24b4b1e851" style="color: #1068bf; text-decoration: none;">d7cc8f19</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2021-12-22T00:13:02-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Fix master CI
I made a mistake in the bash script so there were errors about
"$CI_MERGE_REQUEST_DIFF_BASE_SHA" not existing.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/09b6cb45505c2c32ddaffcdb930fb3f7873b2cfc" style="color: #1068bf; text-decoration: none;">09b6cb45</a></strong>
<div>
<span>by Alan Zimmerman</span>
<i>at 2021-12-22T00:13:38-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix panic trying to -ddump-parsed-ast for implicit fixity
A declaration such as
infixr ++++
is supplied with an implicit fixity of 9 in the parser, but uses
an invalid SrcSpan to capture this. Use of this span triggers a panic.
Fix the problem by not recording an exact print annotation for the
non-existent fixity source.
Closes #20846
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3ed909118126a93f03ef17fed52eaf602b91ae1b" style="color: #1068bf; text-decoration: none;">3ed90911</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2021-12-22T14:47:40-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Remove reqlib modifier
The reqlib modifer was supposed to indicate that a test needed a certain
library in order to work. If the library happened to be installed then
the test would run as normal.
However, CI has never run these tests as the packages have not been
installed and we don't want out tests to depend on things which might
get externally broken by updating the compiler.
The new strategy is to run these tests in head.hackage, where the tests
have been cabalised as well as possible. Some tests couldn't be
transferred into the normal style testsuite but it's better than never
running any of the reqlib tests. https://gitlab.haskell.org/ghc/head.hackage/-/merge_requests/169
A few submodules also had reqlib tests and have been updated to remove
it.
Closes #16264 #20032 #17764 #16561
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ac3e8c52d4acb4fc8c52abe7a90d6dfdef642ccd" style="color: #1068bf; text-decoration: none;">ac3e8c52</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2021-12-22T14:48:16-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>perf ci: Start searching form the performance baseline
If you specify PERF_BASELINE_COMMIT then this can fail if the specific
commit you selected didn't have perf test metrics. (This can happen in
CI for example if a build fails on master).
Therefore instead of just reporting all tests as new, we start searching
downwards from this point to try and find a good commit to report
numbers from.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9552781abf3d199d01b01ed4b7d04abdc54b6b26" style="color: #1068bf; text-decoration: none;">9552781a</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2021-12-22T14:48:51-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Mark T16525b as fragile on windows
See ticket #20852
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/13a6d85a74872f22c8762d04678f7499e7890a5f" style="color: #1068bf; text-decoration: none;">13a6d85a</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2021-12-23T10:55:36-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make callerCC profiling mode represent entry counter flag.
Fixes #20854
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/80daefce4ec1169ac3ef0552b8600c71527d84c2" style="color: #1068bf; text-decoration: none;">80daefce</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2021-12-23T10:56:11-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Properly filter for module visibility in resolvePackageImport
This completes the fix for #20779 / !7123.
Beforehand, the program worked by accident because the two versions of
the library happened to be ordered properly (due to how the hashes were
computed). In the real world I observed them being the other way around
which meant the final lookup failed because we weren't filtering for
visibility.
I modified the test so that it failed (and it's fixed by this patch).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e6191d39680351bc69dfb379386c4c5273971030" style="color: #1068bf; text-decoration: none;">e6191d39</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2021-12-25T18:26:44+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix typos
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3219610e3ba6cb6a5cd1f4e32e2b4befea5bd384" style="color: #1068bf; text-decoration: none;">3219610e</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2021-12-26T22:12:43-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use POSIX-compliant egrep expression to fix T8832 on OpenBSD
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fd42ab5fa1df847a6b595dfe4b63d9c7eecbf400" style="color: #1068bf; text-decoration: none;">fd42ab5f</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2021-12-28T09:47:53+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Multiple Home Units
Multiple home units allows you to load different packages which may depend on
each other into one GHC session. This will allow both GHCi and HLS to support
multi component projects more naturally.
Public Interface
~~~~~~~~~~~~~~~~
In order to specify multiple units, the -unit @⟨filename⟩ flag
is given multiple times with a response file containing the arguments for each unit.
The response file contains a newline separated list of arguments.
```
ghc -unit @unitLibCore -unit @unitLib
```
where the `unitLibCore` response file contains the normal arguments that cabal would pass to `--make` mode.
```
-this-unit-id lib-core-0.1.0.0
-i
-isrc
LibCore.Utils
LibCore.Types
```
The response file for lib, can specify a dependency on lib-core, so then modules in lib can use modules from lib-core.
```
-this-unit-id lib-0.1.0.0
-package-id lib-core-0.1.0.0
-i
-isrc
Lib.Parse
Lib.Render
```
Then when the compiler starts in --make mode it will compile both units lib and lib-core.
There is also very basic support for multiple home units in GHCi, at the
moment you can start a GHCi session with multiple units but only the
:reload is supported. Most commands in GHCi assume a single home unit,
and so it is additional work to work out how to modify the interface to
support multiple loaded home units.
Options used when working with Multiple Home Units
There are a few extra flags which have been introduced specifically for
working with multiple home units. The flags allow a home unit to pretend
it’s more like an installed package, for example, specifying the package
name, module visibility and reexported modules.
-working-dir ⟨dir⟩
It is common to assume that a package is compiled in the directory
where its cabal file resides. Thus, all paths used in the compiler
are assumed to be relative to this directory. When there are
multiple home units the compiler is often not operating in the
standard directory and instead where the cabal.project file is
located. In this case the -working-dir option can be passed which
specifies the path from the current directory to the directory the
unit assumes to be it’s root, normally the directory which contains
the cabal file.
When the flag is passed, any relative paths used by the compiler are
offset by the working directory. Notably this includes -i and
-I⟨dir⟩ flags.
-this-package-name ⟨name⟩
This flag papers over the awkward interaction of the PackageImports
and multiple home units. When using PackageImports you can specify
the name of the package in an import to disambiguate between modules
which appear in multiple packages with the same name.
This flag allows a home unit to be given a package name so that you
can also disambiguate between multiple home units which provide
modules with the same name.
-hidden-module ⟨module name⟩
This flag can be supplied multiple times in order to specify which
modules in a home unit should not be visible outside of the unit it
belongs to.
The main use of this flag is to be able to recreate the difference
between an exposed and hidden module for installed packages.
-reexported-module ⟨module name⟩
This flag can be supplied multiple times in order to specify which
modules are not defined in a unit but should be reexported. The
effect is that other units will see this module as if it was defined
in this unit.
The use of this flag is to be able to replicate the reexported
modules feature of packages with multiple home units.
Offsetting Paths in Template Haskell splices
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
When using Template Haskell to embed files into your program,
traditionally the paths have been interpreted relative to the directory
where the .cabal file resides. This causes problems for multiple home
units as we are compiling many different libraries at once which have
.cabal files in different directories.
For this purpose we have introduced a way to query the value of the
-working-dir flag to the Template Haskell API. By using this function we
can implement a makeRelativeToProject function which offsets a path
which is relative to the original project root by the value of
-working-dir.
```
import Language.Haskell.TH.Syntax ( makeRelativeToProject )
foo = $(makeRelativeToProject "./relative/path" >>= embedFile)
```
> If you write a relative path in a Template Haskell splice you should use the makeRelativeToProject function so that your library works correctly with multiple home units.
A similar function already exists in the file-embed library. The
function in template-haskell implements this function in a more robust
manner by honouring the -working-dir flag rather than searching the file
system.
Closure Property for Home Units
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
For tools or libraries using the API there is one very important closure
property which must be adhered to:
> Any dependency which is not a home unit must not (transitively) depend
on a home unit.
For example, if you have three packages p, q and r, then if p depends on
q which depends on r then it is illegal to load both p and r as home
units but not q, because q is a dependency of the home unit p which
depends on another home unit r.
If you are using GHC by the command line then this property is checked,
but if you are using the API then you need to check this property
yourself. If you get it wrong you will probably get some very confusing
errors about overlapping instances.
Limitations of Multiple Home Units
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
There are a few limitations of the initial implementation which will be smoothed out on user demand.
* Package thinning/renaming syntax is not supported
* More complicated reexports/renaming are not yet supported.
* It’s more common to run into existing linker bugs when loading a
large number of packages in a session (for example #20674, #20689)
* Backpack is not yet supported when using multiple home units.
* Dependency chasing can be quite slow with a large number of
modules and packages.
* Loading wired-in packages as home units is currently not supported
(this only really affects GHC developers attempting to load
template-haskell).
* Barely any normal GHCi features are supported, it would be good to
support enough for ghcid to work correctly.
Despite these limitations, the implementation works already for nearly
all packages. It has been testing on large dependency closures,
including the whole of head.hackage which is a total of 4784 modules
from 452 packages.
Internal Changes
~~~~~~~~~~~~~~~~
* The biggest change is that the HomePackageTable is replaced with the
HomeUnitGraph. The HomeUnitGraph is a map from UnitId to HomeUnitEnv,
which contains information specific to each home unit.
* The HomeUnitEnv contains:
- A unit state, each home unit can have different package db flags
- A set of dynflags, each home unit can have different flags
- A HomePackageTable
* LinkNode: A new node type is added to the ModuleGraph, this is used to
place the linking step into the build plan so linking can proceed in
parralel with other packages being built.
* New invariant: Dependencies of a ModuleGraphNode can be completely
determined by looking at the value of the node. In order to achieve
this, downsweep now performs a more complete job of downsweeping and
then the dependenices are recorded forever in the node rather than
being computed again from the ModSummary.
* Some transitive module calculations are rewritten to use the
ModuleGraph which is more efficient.
* There is always an active home unit, which simplifies modifying a lot
of the existing API code which is unit agnostic (for example, in the
driver).
The road may be bumpy for a little while after this change but the
basics are well-tested.
One small metric increase, which we accept and also submodule update to
haddock which removes ExtendedModSummary.
Closes #10827
-------------------------
Metric Increase:
MultiLayerModules
-------------------------
Co-authored-by: Fendor <power.walross@gmail.com>
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/72824c63e25c5c8c7ef89475c6064a3b9613b381" style="color: #1068bf; text-decoration: none;">72824c63</a></strong>
<div>
<span>by Richard Eisenberg</span>
<i>at 2021-12-28T10:09:28-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Skip computing superclass origins for equalities
This yields a small, but measurable, performance improvement.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8b6aafb229097e01d8c8fcf82949a8ef03b41f05" style="color: #1068bf; text-decoration: none;">8b6aafb2</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2021-12-29T14:09:47-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Cabal: Update submodule
Closes #20874
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/44a5507f6bbc5c87e486446d7f4486f7362748b4" style="color: #1068bf; text-decoration: none;">44a5507f</a></strong>
<div>
<span>by Peter Trommler</span>
<i>at 2021-12-29T14:10:22-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>RTS: Fix CloneStack.c when no table next to code
Function `lookupIPE` does not modify its argument. Reflect this in the
type. Module `CloneStack.c` relies on this for RTS without tables
next to code.
Fixes #20879
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/246d278277dc3414a440639fd35c60006dfb93f0" style="color: #1068bf; text-decoration: none;">246d2782</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-01-02T04:20:09-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>User's guide: newtype decls can use GADTSyntax
The user's guide failed to explicitly mention that GADTSyntax
can be used to declare newtypes, so we add an example and a couple
of explanations.
Also explains that `-XGADTs` generalises `-XExistentialQuantification`.
Fixes #20848 and #20865.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f212cece72b4be2750afa0f71f833f4b0190383a" style="color: #1068bf; text-decoration: none;">f212cece</a></strong>
<div>
<span>by Hécate Moonlight</span>
<i>at 2022-01-02T04:20:47-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add a source-repository stanza to rts/rts.cabal</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d9e491958fab83d34f261f6adeaf3c8ace71b276" style="color: #1068bf; text-decoration: none;">d9e49195</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2022-01-03T05:18:24+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Replace `seq` with POSIX-standard printf(1) in ManyAlternatives test
The test now passes on OpenBSD instead of generating broken source
which was rejected by GHC with
ManyAlternatives.hs:5:1: error:
The type signature for ‘f’ lacks an accompanying binding
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/80e416aeca87a0133638c5fcb3f5b5ec67feb809" style="color: #1068bf; text-decoration: none;">80e416ae</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2022-01-03T05:18:24+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Replace `seq` with POSIX-standard in PmSeriesG test
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8fa52f5cd5ac44d7506f4a38a6a9d86c63bc0f99" style="color: #1068bf; text-decoration: none;">8fa52f5c</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-01-03T16:48:51-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>fix typo</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a49f58890b3a8d9759b7147b6dfdaf7287679e3f" style="color: #1068bf; text-decoration: none;">a49f5889</a></strong>
<div>
<span>by Roland Senn</span>
<i>at 2022-01-03T16:49:29-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add regressiontest for #18045
Issue #18045 got fixed by !6971.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f10686e61e49c89baf45df92eb24ad3504492f7" style="color: #1068bf; text-decoration: none;">7f10686e</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-01-03T16:50:07-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add test for #20894
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5111028ee0910305d94671397b8ccc5b60ed296b" style="color: #1068bf; text-decoration: none;">5111028e</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-01-04T19:56:13-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Check quoted TH names are in the correct namespace
When quoting (using a TH single or double quote) a built-in
name such as the list constructor (:), we didn't always check
that the resulting 'Name' was in the correct namespace.
This patch adds a check in GHC.Rename.Splice to ensure
we get a Name that is in the term-level/type-level namespace,
when using a single/double tick, respectively.
Fixes #20884.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1de94daaf3d9bd03b1a641cc28678de224662738" style="color: #1068bf; text-decoration: none;">1de94daa</a></strong>
<div>
<span>by George Thomas</span>
<i>at 2022-01-04T19:56:51-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix Haddock parse error in GHC.Exts.Heap.FFIClosures.hs</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e59bd46a6915c79e89d376aa22b0ae6def440e0a" style="color: #1068bf; text-decoration: none;">e59bd46a</a></strong>
<div>
<span>by nineonine</span>
<i>at 2022-01-05T18:07:18+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add regression test (#13997)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c080b44314248545c6ddea0c0eff02f8c9edbca4" style="color: #1068bf; text-decoration: none;">c080b443</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-01-06T02:24:54-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Perf: use SmallArray for primops' Ids cache (#20857)
SmallArray doesn't perform bounds check (faster).
Make primop tags start at 0 to avoid index arithmetic.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ec26c38bfac24d958377abbae6fce3a6fcf4ae39" style="color: #1068bf; text-decoration: none;">ec26c38b</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-01-06T02:24:54-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use primOpIds cache more often (#20857)
Use primOpId instead of mkPrimOpId in a few places to benefit from
Id caching.
I had to mess a little bit with the module hierarchy to fix cycles and
to avoid adding too many new dependencies to count-deps tests.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f7fc62e227ded3eb33dc54ad295d9f15bcbe14cf" style="color: #1068bf; text-decoration: none;">f7fc62e2</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2022-01-06T07:56:22-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Disable T2615 on OpenBSD, close #20869
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/978ea35e37b49ffde28b0536e44362b66f3187b4" style="color: #1068bf; text-decoration: none;">978ea35e</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2022-01-06T07:57:00-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Change ulimit -n in openFile008 back to 1024
The test only wants 1000 descriptors, so changing the limit to double
that *in the context of just this test* makes no sense.
This is a manual revert of 8f7194fae23bdc6db72fc5784933f50310ce51f9.
The justification given in the description doesn't instill confidence.
As of HEAD, the test fails on OpenBSD where ulimit -n is hard-limited
to 1024. The test suite attempts to change it to 2048, which
fails. The test proceeds with the unchanged default of 512 and
naturally the test program fails due to the low ulimit. The fixed test
now passes.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7b783c9da649899bdce34b6e746fa8704b667f28" style="color: #1068bf; text-decoration: none;">7b783c9d</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-01-07T18:25:06-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Thoughtful forcing in CoreUnfolding
We noticed that the structure of CoreUnfolding could leave double the
amount of CoreExprs which were retained in the situation where the
template but not all the predicates were forced. This observation was
then confirmed using ghc-debug:
```
(["ghc:GHC.Core:App","ghc-prim:GHC.Types:True","THUNK_1_0","THUNK_1_0","THUNK_1_0"],Count 237)
(["ghc:GHC.Core:App","ghc-prim:GHC.Types:True","THUNK_1_0","THUNK_1_0","ghc-prim:GHC.Types:True"],Count 1)
(["ghc:GHC.Core:Case","ghc-prim:GHC.Types:True","THUNK_1_0","THUNK_1_0","THUNK_1_0"],Count 12)
(["ghc:GHC.Core:Cast","ghc-prim:GHC.Types:True","THUNK_1_0","THUNK_1_0","BLACKHOLE"],Count 1)
(["ghc:GHC.Core:Cast","ghc-prim:GHC.Types:True","THUNK_1_0","THUNK_1_0","THUNK_1_0"],Count 78)
(["ghc:GHC.Core:Cast","ghc-prim:GHC.Types:True","THUNK_1_0","ghc-prim:GHC.Types:False","THUNK_1_0"],Count 1)
(["ghc:GHC.Core:Cast","ghc-prim:GHC.Types:True","ghc-prim:GHC.Types:False","THUNK_1_0","THUNK_1_0"],Count 3)
(["ghc:GHC.Core:Cast","ghc-prim:GHC.Types:True","ghc-prim:GHC.Types:True","THUNK_1_0","THUNK_1_0"],Count 1)
(["ghc:GHC.Core:Lam","ghc-prim:GHC.Types:True","THUNK_1_0","THUNK_1_0","BLACKHOLE"],Count 31)
(["ghc:GHC.Core:Lam","ghc-prim:GHC.Types:True","THUNK_1_0","THUNK_1_0","THUNK_1_0"],Count 4307)
(["ghc:GHC.Core:Lam","ghc-prim:GHC.Types:True","THUNK_1_0","THUNK_1_0","ghc-prim:GHC.Types:True"],Count 6)
(["ghc:GHC.Core:Let","ghc-prim:GHC.Types:True","THUNK_1_0","THUNK_1_0","THUNK_1_0"],Count 29)
(["ghc:GHC.Core:Lit","ghc-prim:GHC.Types:True","THUNK_1_0","THUNK_1_0","ghc-prim:GHC.Types:True"],Count 1)
(["ghc:GHC.Core:Tick","ghc-prim:GHC.Types:True","THUNK_1_0","THUNK_1_0","THUNK_1_0"],Count 36)
(["ghc:GHC.Core:Var","ghc-prim:GHC.Types:True","THUNK_1_0","THUNK_1_0","THUNK_1_0"],Count 1)
(["ghc:GHC.Core:Var","ghc-prim:GHC.Types:True","ghc-prim:GHC.Types:False","THUNK_1_0","THUNK_1_0"],Count 6)
(["ghc:GHC.Core:Var","ghc-prim:GHC.Types:True","ghc-prim:GHC.Types:False","ghc-prim:GHC.Types:True","THUNK_1_0"],Count 2)
```
Where we can see that the first argument is forced but there are still
thunks remaining which retain the old expr.
For my test case (a very big module, peak of 3 000 000 core terms) this
reduced peak memory usage by 1G (12G -> 11G).
Fixes #20905
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f583eb8e5e7077f77fba035a454fafd945d4a4ea" style="color: #1068bf; text-decoration: none;">f583eb8e</a></strong>
<div>
<span>by Joachim Breitner</span>
<i>at 2022-01-07T18:25:41-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove dangling references to Note [Type-checking overloaded labels]
that note was removed in 4196969c53c55191e644d9eb258c14c2bc8467da
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2b6c217925a39624f425758ca680887b01db8efd" style="color: #1068bf; text-decoration: none;">2b6c2179</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-01-11T19:37:45-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Add bootstrap scripts for building without cabal-install
These scripts are originally from the cabal-install repo with a few
small tweaks.
This utility allows you to build hadrian without cabal-install, which can be useful
for packagers. If you are a developer then build hadrian using cabal-install.
If you want to bootstrap with ghc-8.10.5 then run the ./bootstrap script with the
`plan-bootstrap-8.10.5.json` file.
bootstrap.py -d plan-bootstrap-8.10.5.json -w /path/to-ghc
The result of the bootstrap script will be a hadrian binary in
`_build/bin/hadrian`.
There is a script (using nix) which can be used to generate the bootstrap plans for the range
of supported GHC versions using nix.
generate_bootstrap_plans
Otherwise you can run the commands in ./generate_bootstrap_plans directly.
Fixes #17103
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a8fb4251cd4b12c792b0f94979b584364d80b434" style="color: #1068bf; text-decoration: none;">a8fb4251</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-01-11T19:37:45-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: allow offline bootstrapping
This patch adds the ability to fetch and store dependencies needed for
boostrapping hadrian. By default the script will download the
dependencies from the network but some package managers disallow network
access so there are also options to build given a supplied tarball.
The -s option allos you to provide the tarball
bootstrap.py -d plan-bootstrap-8.10.5.json -w /path/to-ghc -s sources-tarball.tar.gz
Which dependencies you need can be queried using the `list-sources` option.
bootstrap.py list-sources -d plan-bootstrap-8.10.5.json
This produces `fetch_plan.json` which tells you where to get each source from.
You can instruct the script to create the tarball using the `fetch` option.
bootstrap.py fetch -d plan-bootstrap-8.10.5.json -o sources-tarball.tar.gz
Together these commands mean you can build GHC without needing
cabal-install.
Fixes #17103
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/02cf4bc6d349514d6740886ebed660a0c444f3d4" style="color: #1068bf; text-decoration: none;">02cf4bc6</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-01-11T19:37:45-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Fully implement source distributions (#19317)
We use `git ls-files` to get the list of files to include in the source distribution.
Also implements the `-testsuite` and `-extra-tarballs` distributions.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/85473a098ea60fac1633c179397c640889ce58ea" style="color: #1068bf; text-decoration: none;">85473a09</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-01-11T19:37:45-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: test bootstrapping and use hadrian for source dists
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/759f3421b5c1dbea358208337541eef674441af6" style="color: #1068bf; text-decoration: none;">759f3421</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-01-11T19:38:21-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Nightly, run one head.hackage job with core-lint and one without
This fixes serious skew in the performance numbers because the packages
were build with core-lint.
Fixes #20826
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6737c8e1ed67a2ec3f1fa3e91cb279f689d3da6f" style="color: #1068bf; text-decoration: none;">6737c8e1</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-11T19:38:56-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Depend explicitly on libc
As noted in #19029, currently `ghc-prim` explicitly lists `libc` in
`extra-libraries`, resulting in incorrect link ordering with the
`extra-libraries: pthread` in `libHSrts`. Fix this by adding an explicit
dependency on `libc` to `libHSrts`.
Closes #19029.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/247cd336af9b9367697e0b5a7a82c5227f986a97" style="color: #1068bf; text-decoration: none;">247cd336</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-11T19:39:32-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Only declare environ when necessary
Previously we would unconditionally provide a declaration for `environ`,
even if `<unistd.h>` already provided one. This would result in
`-Werror` builds failing on some platforms.
Also `#include <unistd.h>` to ensure that the declaration is visible.
Fixes #20861.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b65e72741a48db29133f8bd24b7e4735ac493ea5" style="color: #1068bf; text-decoration: none;">b65e7274</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2022-01-11T19:40:10-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Skip T18623 on OpenBSD
The bug it regresses didn't happen on this OS (no RLIMIT_AS) and the
regression doesn't work (ulimit: -v: unknown option)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c6300cb319f5d756e4addf8193b8115949e645ac" style="color: #1068bf; text-decoration: none;">c6300cb3</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2022-01-11T19:40:50-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Skip T16180 on OpenBSD due to bug #14012
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/addf8e544841a3f7c818331e47fa89a2cbfb7b29" style="color: #1068bf; text-decoration: none;">addf8e54</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-01-11T19:41:28-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Kind TyCons: require KindSignatures, not DataKinds
Uses of a TyCon in a kind signature required users to enable
DataKinds, which didn't make much sense, e.g. in
type U = Type
type MyMaybe (a :: U) = MyNothing | MyJust a
Now the DataKinds error is restricted to data constructors;
the use of kind-level type constructors is instead gated behind
-XKindSignatures.
This patch also adds a convenience pattern synonym for patching
on both a TyCon or a TcTyCon stored in a TcTyThing, used in
tcTyVar and tc_infer_id.
fixes #20873
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/34d8bc24e33aa373acb6fdeef51427d968f28c0c" style="color: #1068bf; text-decoration: none;">34d8bc24</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-01-11T19:42:07-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix parsing & printing of unboxed sums
The pretty-printing of partially applied unboxed sums was incorrect,
as we incorrectly dropped the first half of the arguments, even
for a partial application such as
(# | #) @IntRep @DoubleRep Int#
which lead to the nonsensical (# DoubleRep | Int# #).
This patch also allows users to write unboxed sum type constructors
such as
(# | #) :: TYPE r1 -> TYPE r2 -> TYPE (SumRep '[r1,r2]).
Fixes #20858 and #20859.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/49731fed69cb67ebaa3481b6ed5395ccd760c051" style="color: #1068bf; text-decoration: none;">49731fed</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-01-11T19:42:46-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>TcPlugins: `newWanted` uses the provided `CtLoc`
The `GHC.Tc.Plugin.newWanted` function takes a `CtLoc` as an argument,
but it used to discard the location information, keeping only
the `CtOrigin`. It would then retrieve the source location from the
`TcM` environment using `getCtLocM`.
This patch changes this so that `GHC.Tc.Plugin.newWanted` passes on
the full `CtLoc`. This means that authors of type-checking plugins
no longer need to manually set the `CtLoc` environment in the `TcM`
monad if they want to create a new Wanted constraint with the given
`CtLoc` (in particular, for setting the `SrcSpan` of an emitted
constraint). This makes the `newWanted` function consistent with
`newGiven`, which always used the full `CtLoc` instead of using
the environment.
Fixes #20895
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/23d215fcb62c8bfe8d56396a0c9718a72ac0037b" style="color: #1068bf; text-decoration: none;">23d215fc</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-01-11T19:43:22-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>warnPprTrace: pass separately the reason
This makes it more similar to pprTrace, pprPanic etc.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/833216a31c866d86ff95cfbf95591fb56463371c" style="color: #1068bf; text-decoration: none;">833216a3</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-01-11T19:43:57-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use interactive flags when printing expressions in GHCi
The documentation states that the interactive flags should be use for
any interactive expressions. The interactive flags are used when
typechecking these expressions but not when printing. The session flags
(modified by :set) are only used when loading a module.
Fixes #20909
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/19b13698f5afe6ab497eb2e2169cb9782a933f93" style="color: #1068bf; text-decoration: none;">19b13698</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-01-11T19:43:57-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Enable :seti in a multi component repl
Part of #20889
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7ca43a3fb315abf172a6f7ff2bb4cf4303017e24" style="color: #1068bf; text-decoration: none;">7ca43a3f</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-01-11T19:44:33-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Change assertions in Stats.c to warnings (and introduce WARN macro)
ASSERT should be used in situations where something very bad will happen
later on if a certain invariant doesn't hold. The idea is that IF we
catch the assertion earlier then it will be easier to work out what's
going on at that point rather than at some indeterminate point in the
future of the program.
The assertions in Stats.c do not obey this philsophy and it is quite
annoying if you are running a debug build (or a ticky compiler) and one
of these assertions fails right at the end of your program, before the
ticky report is printed out so you don't get any profiling information.
Given that nothing terrible happens if these assertions are not true, or
at least the terrible thing will happen in very close proximity to the
assertion failure, these assertions use the new WARN macro which prints
the assertion failure to stdout but does not exit the program.
Of course, it would be better to fix these metrics to not trigger the
assertion in the first place but if they did fail again in the future it
is frustrating to be bamboozled in this manner.
Fixes #20899
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e505dbd36f3c8c43a645a176babefabfd0a72eeb" style="color: #1068bf; text-decoration: none;">e505dbd3</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2022-01-11T19:45:11-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove from error the parenthesized amount of memory requested
Diagnostics for outofmem test on OpenBSD includes the amount of memory
that it failed to allocate. This seems like an irrelevant detail that
could change over time and isn't required for determining if test
passed.
Typical elided text is '(requested 2148532224 bytes)'
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7911aaa93fa7dd81ba0c0523046a3a649e329309" style="color: #1068bf; text-decoration: none;">7911aaa9</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2022-01-11T19:45:50-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Feed /dev/null into cgrun025
The test currently times out waiting for end of stdin in getContents.
The expected output indicates that nothing should come for the test to
pass as written. It is unclear how the test was supposed to pass, but
this looks like a sufficient hack to make it work.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ed39d15cf258c7cdd8e3776b2a013e4ae7ae8e61" style="color: #1068bf; text-decoration: none;">ed39d15c</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2022-01-11T19:46:28-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Disable keep-cafs{,-fail} tests on OpenBSD
They are likely broken for the same reason as FreeBSD where the tests
are already disabled.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/35bea01b4df92f5c0bf875e8a8deed2252821f5b" style="color: #1068bf; text-decoration: none;">35bea01b</a></strong>
<div>
<span>by Peter Trommler</span>
<i>at 2022-01-11T19:47:04-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>RTS: Remove unused file xxhash.c
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c2099059eca2f5f0217256374834784f008b7602" style="color: #1068bf; text-decoration: none;">c2099059</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-01-11T19:47:39-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>RTTI: Substitute the [rk] skolems into kinds
(Fixes #10616 and #10617)
Co-authored-by: Roland Senn <rsx@bluewin.ch>
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/92f3e6e4e30b853af304aa53f529af2c262419f1" style="color: #1068bf; text-decoration: none;">92f3e6e4</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-01-11T19:48:15-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>docs: MonadComprehension desugar using Alternative rather than MonadPlus
Fixes #20928
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7b0c938483bad5a5c96e02c511fb2b2df059154c" style="color: #1068bf; text-decoration: none;">7b0c9384</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-01-12T23:25:49-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Abstract BangOpts
Avoid requiring to pass DynFlags to mkDataConRep/buildDataCon. When we
load an interface file, these functions don't use the flags.
This is preliminary work to decouple the loader from the type-checker
for #14335.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a31ace56209b583df890a1bffb5a8928aa734aa6" style="color: #1068bf; text-decoration: none;">a31ace56</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-01-12T23:25:49-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Untangled GHC.Types.Id.Make from the driver
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/81a8f7a7daeb87db53d598ced4b303f8f320442f" style="color: #1068bf; text-decoration: none;">81a8f7a7</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-01-12T23:26:24-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Fix import on python 3.10
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/66831b948f606f8ddb05f53bcbc5c55082bc598c" style="color: #1068bf; text-decoration: none;">66831b94</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-13T14:50:13-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Include bash completion script in bindist
See #20802.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/be33d61a7a36e156a6b95880babdf484dedc76e2" style="color: #1068bf; text-decoration: none;">be33d61a</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-01-13T14:50:49-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>release notes: Changes to CPR analysis
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c2a6c3eb380891eb44d30529f0b9f8f6debf31c9" style="color: #1068bf; text-decoration: none;">c2a6c3eb</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-01-13T14:50:49-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>release notes: Changes to Demand analysis
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9ccc445a41a4bc722475e1f84109411d660a9dca" style="color: #1068bf; text-decoration: none;">9ccc445a</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-01-14T10:35:46-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>add NUMJOBS</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/564b89ae08bbda9f46dcd0e6ad784e5899b3f01f" style="color: #1068bf; text-decoration: none;">564b89ae</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-01-14T10:35:46-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Revert "add NUMJOBS"
This reverts commit c0b854e929f82c680530e944e12fad24f9e14f8e</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2dfc268c55b5e758f41c2690bd8b40ff5ab46d88" style="color: #1068bf; text-decoration: none;">2dfc268c</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-01-14T10:35:46-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>update URLs</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1aace89449a8935eff5040702c603bb7945efb61" style="color: #1068bf; text-decoration: none;">1aace894</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-01-14T10:35:46-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>reinsert target</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/52a4f5ab44a7d4c89189b9132a5560cb85d18714" style="color: #1068bf; text-decoration: none;">52a4f5ab</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-01-14T10:36:21-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add test for #20938.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e2b60be8472ad5b7b6ef2b265b4a06d1b2b67c7d" style="color: #1068bf; text-decoration: none;">e2b60be8</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-15T03:41:16-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Consolidate RtsSymbols from libc
Previously (9ebda74ec5331911881d734b21fbb31c00a0a22f) `environ` was
added to `RtsSymbols` to ensure that environment was correctly
propagated when statically linking. However, this introduced #20577
since platforms are inconsistent in whether they provide a prototype for
`environ`. I fixed this by providing a prototype but while doing so
dropped symbol-table entry, presumably thinking that it was redundant
due to the entry in the mingw-specific table.
Here I reintroduce the symbol table entry for `environ` and move libc
symbols shared by Windows and Linux into a new macro,
`RTS_LIBC_SYMBOLS`, avoiding this potential confusion.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0dc723957d0fdb5909f145405b775efea0fe2f6e" style="color: #1068bf; text-decoration: none;">0dc72395</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2022-01-15T03:41:55-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>winio: fix heap corruption and various leaks.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4031ef62676b518d87dfc16d1d6c7bd64ef4c888" style="color: #1068bf; text-decoration: none;">4031ef62</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-01-15T20:11:55+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>wikipedia link</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a13aff98cfccddee285b6550dd08c6ec1a3c4e17" style="color: #1068bf; text-decoration: none;">a13aff98</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-01-17T08:25:51-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ms link</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f161e890dfd41fd9735f4e259fffe2ce6d00ec1a" style="color: #1068bf; text-decoration: none;">f161e890</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-01-17T14:52:50+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use diagnostic infrastructure in GHC.Tc.Errors
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/18c797b80b938b648704f118dacbfe8655aaeea5" style="color: #1068bf; text-decoration: none;">18c797b8</a></strong>
<div>
<span>by Jens Petersen</span>
<i>at 2022-01-18T16:12:14-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian BinaryDist: version ghc in ghciScriptWrapper
like we do for the non-Hadrian wrapper script.
Otherwise if $bindir/ghc is a different ghc version then versioned ghci will incorrectly run the other ghc version instead.
(Normally this would only happen if there are parallel ghc versions installed in bindir.)
All the other wrapper scripts already have versioned executablename</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/310424d05836ee8788c7c79f98243ef92330f5f1" style="color: #1068bf; text-decoration: none;">310424d0</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-01-18T16:12:50-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Correct type of static forms in hsExprType
The simplest way to do this seemed to be to persist the whole type in
the extension field from the typechecker so that the few relevant places
* Desugaring can work out the return type by splitting this type rather
than calling `dsExpr` (slightly more efficient).
* hsExprType can just return the correct type.
* Zonking has to now zonk the type as well
The other option we considered was wiring in StaticPtr but that is
actually quite tricky because StaticPtr refers to StaticPtrInfo which
has field selectors (which we can't easily wire in).
Fixes #20150
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7ec783de6ba9e380da6737dad78d9a82cf56002a" style="color: #1068bf; text-decoration: none;">7ec783de</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-01-18T16:12:50-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add test for using type families with static pointers
Issue was reported on #13306
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2d205154d3fd565c7f88e07c4c307f48c5ade902" style="color: #1068bf; text-decoration: none;">2d205154</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-01-18T16:13:25-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Stricten the Strict State monad
I found it weird that most of the combinators weren't actually strict. Making
`pure` strict in the state should hopefully give Nested CPR an easier time to
unbox the nested state.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5a6efd218734dbb5c1350531680cd3f4177690f1" style="color: #1068bf; text-decoration: none;">5a6efd21</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-18T16:14:01-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/winio: Fix #18382
Here we refactor WinIO's IO completion scheme, squashing a memory leak
and fixing #18382.
To fix #18382 we drop the special thread status introduced for IoPort
blocking, BlockedOnIoCompletion, as well as drop the non-threaded RTS's
special dead-lock detection logic (which is redundant to the GC's
deadlock detection logic), as proposed in #20947.
Previously WinIO relied on foreign import ccall "wrapper" to create an
adjustor thunk which can be attached to the OVERLAPPED structure passed
to the operating system. It would then use foreign import ccall
"dynamic" to back out the original continuation from the adjustor. This
roundtrip is significantly more expensive than the alternative, using a
StablePtr. Furthermore, the implementation let the adjustor leak,
meaning that every IO request would leak a page of memory.
Fixes T18382.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/01254ceb5173ddb179c6ead0d6b60f7ac5a86e83" style="color: #1068bf; text-decoration: none;">01254ceb</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-01-18T16:14:37-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add note about heap invariant
Closed #20904
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/21510698817fbe7254112b5967854cad28a612bf" style="color: #1068bf; text-decoration: none;">21510698</a></strong>
<div>
<span>by Sergey Vinokurov</span>
<i>at 2022-01-18T16:15:12-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve detection of lld linker
Newer lld versions may include vendor info in --version output and
thus the version string may not start with ‘LLD’.
Fixes #20907
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/95e7964b41c371d619f504a3d46b4976f86f5b55" style="color: #1068bf; text-decoration: none;">95e7964b</a></strong>
<div>
<span>by Peter Trommler</span>
<i>at 2022-01-18T20:46:08-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix T20638 on big-endian architectures
The test reads a 16 bit value from an array of 8 bit values. Naturally,
that leads to different values read on big-endian architectures than
on little-endian. In this case the value read is 0x8081 on big-endian
and 0x8180 on little endian. This patch changes the argument of the `and`
machop to mask bit 7 which is the only bit different. The test still checks
that bit 15 is zero, which was the original issue in #20638.
Fixes #20906.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fd0019a0381b4c76557063e97ff462acd617e4c2" style="color: #1068bf; text-decoration: none;">fd0019a0</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-01-18T20:46:48-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ms and gh links</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/85dc61ee14049c85ab342747b0c2669e5ba3f55f" style="color: #1068bf; text-decoration: none;">85dc61ee</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-01-18T20:47:23-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Fix subtlety with not taking effect because of time_it (#20898)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/592e41131613e198560de3c88158eadcd789b317" style="color: #1068bf; text-decoration: none;">592e4113</a></strong>
<div>
<span>by Anselm Schüler</span>
<i>at 2022-01-19T13:31:49-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Note that ImpredicativeTypes doesn’t allow polymorphic instances
See #20939
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3b009e1a6247057ff976043695b797b5d0649414" style="color: #1068bf; text-decoration: none;">3b009e1a</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-19T13:32:25-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>base: Add CTYPE pragmas to all foreign types
Fixes #15531 by ensuring that we know the corresponding C type for all
marshalling wrappers.
Closes #15531.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/516eeb9e295b50872398bc9848a42ab41f743316" style="color: #1068bf; text-decoration: none;">516eeb9e</a></strong>
<div>
<span>by Robert Hensing</span>
<i>at 2022-01-24T21:28:24-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add -fcompact-unwind
This gives users the choice to enable __compact_unwind sections
when linking. These were previously hardcoded to be removed.
This can be used to solved the problem "C++ does not catch
exceptions when used with Haskell-main and linked by ghc",
https://gitlab.haskell.org/ghc/ghc/-/issues/11829
It does not change the default behavior, because I can not
estimate the impact this would have.
When Apple first introduced the compact unwind ABI, a number of
open source projects have taken the easy route of disabling it,
avoiding errors or even just warnings shortly after its
introduction.
Since then, about a decade has passed, so it seems quite possible
that Apple itself, and presumably many programs with it, have
successfully switched to the new format, to the point where the
old __eh_frame section support is in disrepair. Perhaps we should
get along with the program, but for now we can test the waters
with this flag, and use it to fix packages that need it.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5262b1e541c8f67e249074eef5e0567e6603ccd9" style="color: #1068bf; text-decoration: none;">5262b1e5</a></strong>
<div>
<span>by Robert Hensing</span>
<i>at 2022-01-24T21:28:24-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add test case for C++ exception handling
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a5c9409232d8b3bfc4f10812f97c26e743f041e2" style="color: #1068bf; text-decoration: none;">a5c94092</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-01-24T21:29:00-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Write Note [Strict State monad] to explain what G.U.M.State.Strict does
As requested by Simon after review of !7342.
I also took liberty to define the `Functor` instance by hand, as the derived one
subverts the invariants maintained by the pattern synonym (as already stated in
`Note [The one-shot state monad trick]`).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9b0d56d3356da622979e1a4514fb5681060b2bbb" style="color: #1068bf; text-decoration: none;">9b0d56d3</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-01-24T21:29:38-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>links</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4eac8e727e36785af0d74d7ec9437bc78e20628e" style="color: #1068bf; text-decoration: none;">4eac8e72</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-24T21:30:13-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ghc-heap: Drop mention of BlockedOnIOCompletion
Fixes bootstrap with GHC 9.0 after 5a6efd218734dbb5c1350531680cd3f4177690f1
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7d7b9a01ffed2afd8b7a1bb08cf9bd8edb702920" style="color: #1068bf; text-decoration: none;">7d7b9a01</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2022-01-24T21:30:49-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Hadrian: update the index-state to allow building with GHC 9.0.2
Fixes #20984.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/aa50e118b201ae4ac2714afb998d430c9a4a9caa" style="color: #1068bf; text-decoration: none;">aa50e118</a></strong>
<div>
<span>by Peter Trommler</span>
<i>at 2022-01-24T21:31:25-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Mark test that require RTS linker
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/871ce2a300ed35639a39a86f4c85fbcb605c5d7d" style="color: #1068bf; text-decoration: none;">871ce2a3</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-01-25T17:27:30-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Move (most) deb9 jobs to deb10
deb9 is now end-of-life so we are dropping support for producing
bindists.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9d478d516a76298051993a60c196a1f61320b439" style="color: #1068bf; text-decoration: none;">9d478d51</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2022-01-25T17:28:06-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>DeriveGeneric: look up datacon fixities using getDataConFixityFun
Previously, `DeriveGeneric` would look up the fixity of a data constructor
using `getFixityEnv`, but this is subtly incorrect for data constructors
defined in external modules. This sort of situation can happen with
`StandaloneDeriving`, as noticed in #20994. In fact, the same bug has occurred
in the past in #9830, and while that bug was fixed for `deriving Read` and
`deriving Show`, the fix was never extended to `DeriveGeneric` due to an
oversight. This patch corrects that oversight.
Fixes #20994.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/112e9e9ee7a5af7db3ec29cd3fdfc73aa4125afa" style="color: #1068bf; text-decoration: none;">112e9e9e</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-01-25T17:28:41-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix Werror on alpine
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/781323a3076781b5db50bdbeb8f64394add43836" style="color: #1068bf; text-decoration: none;">781323a3</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-01-25T17:29:17-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Widen T12545 acceptance window
This test has been the scourge of contributors for a long time.
It has caused many failed CI runs and wasted hours debugging a test
which barely does anything. The fact is does nothing is the reason for
the flakiness and it's very sensitive to small changes in initialisation costs,
in particular adding wired-in things can cause this test to fluctuate
quite a bit.
Therefore we admit defeat and just bump the threshold up to 10% to catch
very large regressions but otherwise don't care what this test does.
Fixes #19414
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e471a6803842db93483526f2be58b61ea3c33dc7" style="color: #1068bf; text-decoration: none;">e471a680</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-01-26T12:01:45-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Levity-polymorphic arrays and mutable variables
This patch makes the following types levity-polymorphic in their
last argument:
- Array# a, SmallArray# a, Weak# b, StablePtr# a, StableName# a
- MutableArray# s a, SmallMutableArray# s a,
MutVar# s a, TVar# s a, MVar# s a, IOPort# s a
The corresponding primops are also made levity-polymorphic, e.g.
`newArray#`, `readArray#`, `writeMutVar#`, `writeIOPort#`, etc.
Additionally, exception handling functions such as `catch#`, `raise#`,
`maskAsyncExceptions#`,... are made levity/representation-polymorphic.
Now that Array# and MutableArray# also work with unlifted types,
we can simply re-define ArrayArray# and MutableArrayArray# in terms
of them. This means that ArrayArray# and MutableArrayArray# are no
longer primitive types, but simply unlifted newtypes around Array# and
MutableArrayArray#.
This completes the implementation of the Pointer Rep proposal
https://github.com/ghc-proposals/ghc-proposals/pull/203
Fixes #20911
-------------------------
Metric Increase:
T12545
-------------------------
-------------------------
Metric Decrease:
T12545
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6e94ba54c55f947e9ba034d3b387ae94e240f253" style="color: #1068bf; text-decoration: none;">6e94ba54</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-01-26T12:02:21-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CorePrep: Don't try to wrap partial applications of primops in profiling ticks.
This fixes #20938.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b55d7db321d78e11b45b5260f1aa46c046d1c05d" style="color: #1068bf; text-decoration: none;">b55d7db3</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-01-26T12:03:01-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Ensure that order of instances doesn't matter
The insert_overlapping used in lookupInstEnv used to return different
results depending on the order in which instances were processed.
The problem was that we could end up discarding an overlapping instance
in favour of a more specific non-overlapping instance. This is a
problem because, even though we won't choose the less-specific instance
for matching, it is still useful for pruning away other instances,
because it has the overlapping flag set while the new instance doesn't.
In insert_overlapping, we now keep a list of "guard" instances, which
are instances which are less-specific that one that matches (and hence
which we will discard in the end), but want to keep around solely for
the purpose of eliminating other instances.
Fixes #20946
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/61f6206221bde5427462e0db35c8e624c528486c" style="color: #1068bf; text-decoration: none;">61f62062</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-01-26T12:03:40-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove redundant SOURCE import in FitTypes
Fixes #20995
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e840582943eaa49e739fc9d801d2f0925daac0a0" style="color: #1068bf; text-decoration: none;">e8405829</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-01-26T12:04:15-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix haddock markup in GHC.Tc.Errors.Types</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/590a2918d815edd184a1665e361640a29674cbf3" style="color: #1068bf; text-decoration: none;">590a2918</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-01-26T19:45:22-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make RULE matching insensitive to eta-expansion
This patch fixes #19790 by making the rule matcher do on-the-fly
eta reduction. See Note [Eta reduction the target] in GHC.Core.Rules
I found I also had to careful about casts when matching; see
Note [Casts in the target] and Note [Casts in the template]
Lots more comments and Notes in the rule matcher
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c61ac4d86f8b0746eae1ee3783f758ececc950be" style="color: #1068bf; text-decoration: none;">c61ac4d8</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-01-26T19:45:58-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>alwaysRerun generation of ghcconfig
This file needs to match exactly what is passed as the testCompiler.
Before this change the settings for the first compiler to be tested
woudl be stored and not regenerated if --test-compiler changed.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b5132f8659744303300a442212ccec4cba191e29" style="color: #1068bf; text-decoration: none;">b5132f86</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-01-26T19:45:58-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Pass config.stage argument to testsuite
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/83d3ad3148917028529b4c5614e2a03877e21863" style="color: #1068bf; text-decoration: none;">83d3ad31</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-01-26T19:45:58-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Allow testing of the stage1 compiler (#20755)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a5924b38b0cbe75021e6042b946fe921f2c4afe4" style="color: #1068bf; text-decoration: none;">a5924b38</a></strong>
<div>
<span>by Joachim Breitner</span>
<i>at 2022-01-26T19:46:34-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Simplifier: Do the right thing if doFloatFromRhs = False
If `doFloatFromRhs` is `False` then the result from `prepareBinding`
should not be used. Previously it was in ways that are silly (but not
completly wrong, as the simplifier would clean that up again, so no
test case).
This was spotted by Simon during a phone call.
Fixes #20976
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ce488c2bdba764baf3fa5fa880b7865600679620" style="color: #1068bf; text-decoration: none;">ce488c2b</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-01-26T19:47:09-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Better occurrence analysis with casts
This patch addresses #20988 by refactoring the way the
occurrence analyser deals with lambdas.
Previously it used collectBinders to split off a group of binders,
and deal with them together. Now I deal with them one at a time
in occAnalLam, which allows me to skip casts easily. See
Note [Occurrence analysis for lambda binders]
about "lambda-groups"
This avoidance of splitting out a list of binders has some good
consequences. Less code, more efficient, and I think, more clear.
The Simplifier needed a similar change, now that lambda-groups
can inlude casts. It turned out that I could simplify the code
here too, in particular elminating the sm_bndrs field of StrictBind.
Simpler, more efficient.
Compile-time metrics improve slightly; here are the ones that are
+/- 0.5% or greater:
Baseline
Test Metric value New value Change
--------------------------------------------------------------------
T11303b(normal) ghc/alloc 40,736,702 40,543,992 -0.5%
T12425(optasm) ghc/alloc 90,443,459 90,034,104 -0.5%
T14683(normal) ghc/alloc 2,991,496,696 2,956,277,288 -1.2%
T16875(normal) ghc/alloc 34,937,866 34,739,328 -0.6%
T17977b(normal) ghc/alloc 37,908,550 37,709,096 -0.5%
T20261(normal) ghc/alloc 621,154,237 618,312,480 -0.5%
T3064(normal) ghc/alloc 190,832,320 189,952,312 -0.5%
T3294(normal) ghc/alloc 1,604,674,178 1,604,608,264 -0.0%
T5321FD(normal) ghc/alloc 270,540,489 251,888,480 -6.9% GOOD
T5321Fun(normal) ghc/alloc 300,707,814 281,856,200 -6.3% GOOD
WWRec(normal) ghc/alloc 588,460,916 585,536,400 -0.5%
geo. mean -0.3%
Metric Decrease:
T5321FD
T5321Fun
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4007905d8b42f66a50612eed79a0f1097836dd3d" style="color: #1068bf; text-decoration: none;">4007905d</a></strong>
<div>
<span>by Roland Senn</span>
<i>at 2022-01-26T19:47:47-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Cleanup tests in directory ghci.debugger. Fixes #21009
* Remove wrong comment about panic in `break003.script`.
* Improve test `break008`.
* Add test `break028` to `all.T`
* Fix wrong comments in `print019.script`, `print026.script` and `result001.script`.
* Remove wrong comments from `print024.script` and `print031.script`.
* Replace old module name with current name in `print035.script`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3577defb3c298578339977c6b8865dff144b7ffa" style="color: #1068bf; text-decoration: none;">3577defb</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-01-26T19:48:22-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Move source-tarball and test-bootstrap into full-build
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6e09b3cfdae6f034ee3a6dd52b61853c017b96f1" style="color: #1068bf; text-decoration: none;">6e09b3cf</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-01-27T02:39:35-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Add ENABLE_NUMA flag to explicitly turn on libnuma dependency
In recent releases a libnuma dependency has snuck into our bindists
because the images have started to contain libnuma. We now explicitly
pass `--disable-numa` to configure unless explicitly told not to by
using the `ENABLE_NUMA` environment variable.
So this is tested, there is one random validate job which builds with
--enable-numa so that the code in the RTS is still built.
Fixes #20957 and #15444
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f4ce41863c729f6b993b5e5dd3da69ebc3623327" style="color: #1068bf; text-decoration: none;">f4ce4186</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-01-27T02:40:11-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve partial signatures
As #20921 showed, with partial signatures, it is helpful to use the
same algorithm (namely findInferredDiff) for
* picking the constraints to retain for the /group/
in Solver.decideQuantification
* picking the contraints to retain for the /individual function/
in Bind.chooseInferredQuantifiers
This is still regrettably declicate, but it's a step forward.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0573aeab1381680fe86a13960a7fcdb98a69aa58" style="color: #1068bf; text-decoration: none;">0573aeab</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-01-27T02:40:11-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add an Outputable instance for RecTcChecker
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f0adea14316ef476607cb7d99f74875875e52b20" style="color: #1068bf; text-decoration: none;">f0adea14</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2022-01-27T02:40:47-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Expand type synonyms in markNominal
`markNominal` is repsonsible for setting the roles of type variables
that appear underneath an `AppTy` to be nominal. However, `markNominal`
previously did not expand type synonyms, so in a data type like this:
```hs
data M f a = MkM (f (T a))
type T a = Int
```
The `a` in `M f a` would be marked nominal, even though `T a` would simply
expand to `Int`. The fix is simple: call `coreView` as appropriate in
`markNominal`. This is much like the fix for #14101, but in a different spot.
Fixes #20999.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/18df4013f6eaee0e1de8ebd533f7e96c4ee0ff04" style="color: #1068bf; text-decoration: none;">18df4013</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-01-27T08:22:30-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Define and use restoreLclEnv
This fixes #20981. See Note [restoreLclEnv vs setLclEnv]
in GHC.Tc.Utils.Monad.
I also use updLclEnv rather than get/set when I can, because it's
then much clearer that it's an update rather than an entirely new
TcLclEnv coming from who-knows-where.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/31088dd32a4dbbed649dff0700610eb7ed7a9fca" style="color: #1068bf; text-decoration: none;">31088dd3</a></strong>
<div>
<span>by David Feuer</span>
<i>at 2022-01-27T08:23:05-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add test supplied in T20996 which uses data family result kind polymorphism
David (@treeowl) writes:
> Following @kcsongor, I've used ridiculous data family result kind
> polymorphism in `linear-generics`, and am currently working on getting
> it into `staged-gg`. If it should be removed, I'd appreciate a heads up,
> and I imagine Csongor would too.
>
> What do I need by ridiculous polymorphic result kinds? Currently, data
> families are allowed to have result kinds that end in `Type` (or maybe
> `TYPE r`? I'm not sure), but not in concrete data kinds. However, they
> *are* allowed to have polymorphic result kinds. This leads to things I
> think most of us find at least quite *weird*. For example, I can write
>
> ```haskell
> data family Silly :: k
> data SBool :: Bool -> Type where
> SFalse :: SBool False
> STrue :: SBool True
> SSSilly :: SBool Silly
> type KnownBool b where
> kb :: SBool b
> instance KnownBool False where kb = SFalse
> instance KnownBool True where kb = STrue
> instance KnownBool Silly where kb = Silly
> ```
>
> Basically, every kind now has potentially infinitely many "legit" inhabitants.
>
> As horrible as that is, it's rather useful for GHC's current native
> generics system. It's possible to use these absurdly polymorphic result
> kinds to probe the structure of generic representations in a relatively
> pleasant manner. It's a sort of "formal type application" reminiscent of
> the notion of a formal power series (see the test case below). I suspect
> a system more like `kind-generics` wouldn't need this extra probing
> power, but nothing like that is natively available as yet.
>
> If the ridiculous result kind polymorphism is banished, we'll still be
> able to do what we need as long as we have stuck type families. It's
> just rather less ergonomical: a stuck type family has to be used with a
> concrete marker type argument.
Closes #20996
Co-authored-by: Matthew Pickering <matthewtpickering@gmail.com>
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8fd2ac25f2c85e1234c12eae9bd041620f76db41" style="color: #1068bf; text-decoration: none;">8fd2ac25</a></strong>
<div>
<span>by Andreas Abel</span>
<i>at 2022-01-27T18:34:54-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Whitespace only
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7a8547432505dbf080b0f7b57c5e660f50810cf1" style="color: #1068bf; text-decoration: none;">7a854743</a></strong>
<div>
<span>by Andreas Abel</span>
<i>at 2022-01-27T18:34:54-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Ctd. #18087: complete :since: info for all warnings in users guide
Some warnings have been there "forever" and I could not trace back the
exact genesis, so I wrote "since at least 5.04".
The flag `helpful-errors` could have been added in 7.2 already. I
wrote 7.4 since I have no 7.2 available and it is not recognized by 7.0.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f75411e84d09998f80a3a37869b2eff28864349a" style="color: #1068bf; text-decoration: none;">f75411e8</a></strong>
<div>
<span>by Andreas Abel</span>
<i>at 2022-01-27T18:34:54-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Re #18087 user's guide: add a note that -Wxxx used to be -fwarn-xxx
The warning option syntax -W was introduced in GHC 8.
The note should clarify what e.g. "since 7.6" means in connection with
"-Wxxx": That "-fwarn-xxx" was introduced in 7.6.1.
[ci skip]
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3cae7fde8a98ca3e3bb0ea2331d549b9906cfb0c" style="color: #1068bf; text-decoration: none;">3cae7fde</a></strong>
<div>
<span>by Peter Trommler</span>
<i>at 2022-01-27T18:35:30-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Fix AtomicPrimops test on big endian
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6cc6080c996291a3d481b415470c0361a50224a0" style="color: #1068bf; text-decoration: none;">6cc6080c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-27T18:36:05-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>users-guide: Document GHC_CHARENC environment variable
As noted in #20963, this was introduced in
1b56c40578374a15b4a2593895710c68b0e2a717 but was no documentation
was added at that point.
Closes #20963.</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ee21e2de475d9c8a5e1fe334e2d4ef7cd49d8726" style="color: #1068bf; text-decoration: none;">ee21e2de</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-27T18:36:41-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Clean up RTS flags usage message
Align flag descriptions and acknowledge that some flags may not be
available unless the user linked with `-rtsopts` (as noted in #20961).
Fixes #20961.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f8ce19eb7400ae93661b173b5fc8ee6396da632" style="color: #1068bf; text-decoration: none;">7f8ce19e</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-01-27T18:37:17-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix getHasGivenEqs
The second component is supposed to be "insoluble equalities arising
from givens". But we were getting wanteds too; and that led to an
outright duplication of constraints. It's not harmful, but it's not
right either.
I came across this when debugging something else. Easily fixed.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f9ef2d26293d7e479d83e757986adffd197af502" style="color: #1068bf; text-decoration: none;">f9ef2d26</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-01-27T18:37:17-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Set the TcLclEnv when solving a ForAll constraint
Fix a simple omission in GHC.Tc.Solver.Canonical.solveForAll,
where we ended up with the wrong TcLclEnv captured in an implication.
Result: unhelpful error message (#21006)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bc6ba8ef6632d3385b505ed7d389a8475224c16b" style="color: #1068bf; text-decoration: none;">bc6ba8ef</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-01-28T12:14:41-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make most shifts branchless
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/62a6d03715c6318f962c824db5d5e6aa7a30ea73" style="color: #1068bf; text-decoration: none;">62a6d037</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-01-28T12:15:17-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve boxity in deferAfterPreciseException
As #20746 showed, the demand analyser behaved badly in a key I/O
library (`GHC.IO.Handle.Text`), by unnessarily boxing and reboxing.
This patch adjusts the subtle function deferAfterPreciseException;
it's quite easy, just a bit subtle.
See the new Note [deferAfterPreciseException]
And this MR deals only with Problem 2 in #20746.
Problem 1 is still open.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/42c47cd608cd871e50c9b56691339d694a2ae4e3" style="color: #1068bf; text-decoration: none;">42c47cd6</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-29T02:40:45-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/trace: Shrink tracing flags
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cee66e71ce3858602603856bf7da62d6f9552b8a" style="color: #1068bf; text-decoration: none;">cee66e71</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-29T02:40:45-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/EventLog: Mark various internal globals as static
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6b0cea298f7ad222879fafd2905293ab939ff8b3" style="color: #1068bf; text-decoration: none;">6b0cea29</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-29T02:40:45-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Propagate PythonCmd to make build system
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2e29edb7421c21902b47d130d45f60d3f584a0de" style="color: #1068bf; text-decoration: none;">2e29edb7</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-29T02:40:45-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Refactor event types
Previously we would build the eventTypes array at runtime during RTS
initialization. However, this is completely unnecessary; it is
completely static data.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bb15c34784a3143ef048807fd351667d6775e399" style="color: #1068bf; text-decoration: none;">bb15c347</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-29T02:40:45-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/eventlog: Ensure that flushCount is initialized
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/268efcc9a45da36458442d9203c66a415b48f2b3" style="color: #1068bf; text-decoration: none;">268efcc9</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-01-29T02:41:21-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Rework the handling of SkolemInfo
The main purpose of this patch is to attach a SkolemInfo directly to
each SkolemTv. This fixes the large number of bugs which have
accumulated over the years where we failed to report errors due to
having "no skolem info" for particular type variables. Now the origin of
each type varible is stored on the type variable we can always report
accurately where it cames from.
Fixes #20969 #20732 #20680 #19482 #20232 #19752 #10946
#19760 #20063 #13499 #14040
The main changes of this patch are:
* SkolemTv now contains a SkolemInfo field which tells us how the
SkolemTv was created. Used when reporting errors.
* Enforce invariants relating the SkolemInfoAnon and level of an implication (ic_info, ic_tclvl)
to the SkolemInfo and level of the type variables in ic_skols.
* All ic_skols are TcTyVars -- Check is currently disabled
* All ic_skols are SkolemTv
* The tv_lvl of the ic_skols agrees with the ic_tclvl
* The ic_info agrees with the SkolInfo of the implication.
These invariants are checked by a debug compiler by
checkImplicationInvariants.
* Completely refactor kcCheckDeclHeader_sig which kept
doing my head in. Plus, it wasn't right because it wasn't skolemising
the binders as it decomposed the kind signature.
The new story is described in Note [kcCheckDeclHeader_sig]. The code
is considerably shorter than before (roughly 240 lines turns into 150
lines).
It still has the same awkward complexity around computing arity as
before, but that is a language design issue.
See Note [Arity inference in kcCheckDeclHeader_sig]
* I added new type synonyms MonoTcTyCon and PolyTcTyCon, and used
them to be clear which TcTyCons have "finished" kinds etc, and
which are monomorphic. See Note [TcTyCon, MonoTcTyCon, and PolyTcTyCon]
* I renamed etaExpandAlgTyCon to splitTyConKind, becuase that's a
better name, and it is very useful in kcCheckDeclHeader_sig, where
eta-expansion isn't an issue.
* Kill off the nasty `ClassScopedTvEnv` entirely.
Co-authored-by: Simon Peyton Jones <simon.peytonjones@gmail.com>
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0a1d0944d68265cb48cdb8e42f658d58c1cfdac7" style="color: #1068bf; text-decoration: none;">0a1d0944</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-29T14:52:55-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Drop SPARC NCG
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/313afb3d0f96c952ae74c946f8166a80f7e64d4a" style="color: #1068bf; text-decoration: none;">313afb3d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-29T14:52:56-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>A few comment cleanups
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d85a527f493c0ed41736cf6220a4291a26769d50" style="color: #1068bf; text-decoration: none;">d85a527f</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-29T14:52:56-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Rip out SPARC register support
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c6bede69443a9f40b0504cee83d9b2c5e9b8163b" style="color: #1068bf; text-decoration: none;">c6bede69</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-29T14:52:56-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Rip out SPARC support
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a67c2471a0bf18adf2916fbaa6a7e3f676279b7f" style="color: #1068bf; text-decoration: none;">a67c2471</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-29T14:52:56-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Rip out remaining SPARC support
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5771b69007f1c218db8ddc1652ffd3c0ba6d0682" style="color: #1068bf; text-decoration: none;">5771b690</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-29T14:52:56-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CmmToAsm: Drop RegPair
SPARC was its last and only user.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/512ed3f1ceffd8da5dab91a4d0d7b16cfed18fd3" style="color: #1068bf; text-decoration: none;">512ed3f1</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-29T14:52:56-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CmmToAsm: Make RealReg a newtype
Now that RegPair is gone we no longer need to pay for the additional
box.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/88fea6aaecc8818d370d2e6952df6549484eb108" style="color: #1068bf; text-decoration: none;">88fea6aa</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-29T14:52:56-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Drop redundant #include <Arena.h>
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ea2a403451caa15beca77af42fe0c34e7f1d7dc4" style="color: #1068bf; text-decoration: none;">ea2a4034</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-29T14:52:56-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CmmToAsm: Drop ncgExpandTop
This was only needed for SPARC's synthetic instructions.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/88fce7404f402d8964ef5b79e6e3fde950834f9a" style="color: #1068bf; text-decoration: none;">88fce740</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-29T14:54:04-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rel-notes: Note dropping of SPARC support
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/eb956cf14bb7e2336d84ea1f17ac57f04adc2436" style="color: #1068bf; text-decoration: none;">eb956cf1</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-30T06:27:19-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Force-enable caret diagnostics in T17786
Otherwise GHC realizes that it's not attached to a proper tty and will
disable caret diagnostics.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d07799ab22c156df53919737e3b11ab4ccb2b0d4" style="color: #1068bf; text-decoration: none;">d07799ab</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-30T06:27:19-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Make T7275 more robust against CCid changes
The cost-center numbers are somewhat unstable; normalise them out.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c76c8050a95b6e5828a6684635c10d890afbb114" style="color: #1068bf; text-decoration: none;">c76c8050</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-30T06:27:19-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Don't allocate closurePtrs# pointers on C stack
Previously `closurePtrs#` would allocate an aray of the size of the
closure being decoded on the C stack. This was ripe for overflowing the
C stack overflow. This resulted in `T12492` failing on Windows.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3af95f7a9acc82f61c27a8ac7eba8202dc8c8819" style="color: #1068bf; text-decoration: none;">3af95f7a</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-30T06:27:19-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite/T4029: Don't depend on echo
On Windows the `cmd.exe` shell may be used to execute the command, which
will print `ECHO is on.` instead of a newline if you give it no
argument. Avoid this by rather using `printf`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3531c4784c0a06063dcfc0f084943d5149e64035" style="color: #1068bf; text-decoration: none;">3531c478</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-30T06:27:19-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use PATH_FMT instead of %s to format `pathchar *`
A few %s occurrences have snuck in over the past months.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ee5c4f9d05fab41f53364dc18d30932034e6ada6" style="color: #1068bf; text-decoration: none;">ee5c4f9d</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-01-31T16:51:55+05:30</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve migration strategy for the XDG compliance change to the GHC application
directory.
We want to always use the old path (~/.ghc/..) if it exists.
But we never want to create the old path.
This ensures that the migration can eventually be completed once older GHC
versions are no longer in circulation.
Fixes #20684, #20669, #20660
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/60a54a8f3681869142b0967749a6999b22bad76a" style="color: #1068bf; text-decoration: none;">60a54a8f</a></strong>
<div>
<span>by doyougnu</span>
<i>at 2022-01-31T18:46:11-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>StgToCmm: decouple DynFlags, add StgToCmmConfig
StgToCmm: add Config, remove CgInfoDownwards
StgToCmm: runC api change to take StgToCmmConfig
StgToCmm: CgInfoDownad -> StgToCmmConfig
StgToCmm.Monad: update getters/setters/withers
StgToCmm: remove CallOpts in StgToCmm.Closure
StgToCmm: remove dynflag references
StgToCmm: PtrOpts removed
StgToCmm: add TMap to config, Prof - dynflags
StgToCmm: add omit yields to config
StgToCmm.ExtCode: remove redundant import
StgToCmm.Heap: remove references to dynflags
StgToCmm: codeGen api change, DynFlags -> Config
StgToCmm: remove dynflags in Env and StgToCmm
StgToCmm.DataCon: remove dynflags references
StgToCmm: remove dynflag references in DataCon
StgToCmm: add backend avx flags to config
StgToCmm.Prim: remove dynflag references
StgToCmm.Expr: remove dynflag references
StgToCmm.Bind: remove references to dynflags
StgToCmm: move DoAlignSanitisation to Cmm.Type
StgToCmm: remove PtrOpts in Cmm.Parser.y
DynFlags: update ipInitCode api
StgToCmm: Config Module is single source of truth
StgToCmm: Lazy config breaks IORef deadlock
testsuite: bump countdeps threshold
StgToCmm.Config: strictify fields except UpdFrame
Strictifying UpdFrameOffset causes the RTS build with stage1 to
deadlock. Additionally, before the deadlock performance of the RTS
is noticeably slower.
StgToCmm.Config: add field descriptions
StgToCmm: revert strictify on Module in config
testsuite: update CountDeps tests
StgToCmm: update comment, fix exports
Specifically update comment about loopification passed into dynflags
then stored into stgToCmmConfig. And remove getDynFlags from
Monad.hs exports
Types.Name: add pprFullName function
StgToCmm.Ticky: use pprFullname, fixup ExtCode imports
Cmm.Info: revert cmmGetClosureType removal
StgToCmm.Bind: use pprFullName, Config update comments
StgToCmm: update closureDescription api
StgToCmm: SAT altHeapCheck
StgToCmm: default render for Info table, ticky
Use default rendering contexts for info table and ticky ticky, which should be independent of command line input.
testsuite: bump count deps
pprFullName: flag for ticky vs normal style output
convertInfoProvMap: remove unused parameter
StgToCmm.Config: add backend flags to config
StgToCmm.Config: remove Backend from Config
StgToCmm.Prim: refactor Backend call sites
StgToCmm.Prim: remove redundant imports
StgToCmm.Config: refactor vec compatibility check
StgToCmm.Config: add allowQuotRem2 flag
StgToCmm.Ticky: print internal names with parens
StgToCmm.Bind: dispatch ppr based on externality
StgToCmm: Add pprTickyname, Fix ticky naming
Accidently removed the ctx for ticky SDoc output. The only relevant flag
is sdocPprDebug which was accidental set to False due to using
defaultSDocContext without altering the flag.
StgToCmm: remove stateful fields in config
fixup: config: remove redundant imports
StgToCmm: move Sequel type to its own module
StgToCmm: proliferate getCallMethod updated api
StgToCmm.Monad: add FCodeState to Monad Api
StgToCmm: add second reader monad to FCode
fixup: Prim.hs: missed a merge conflict
fixup: Match countDeps tests to HEAD
StgToCmm.Monad: withState -> withCgState
To disambiguate it from mtl withState. This withState shouldn't be
returning the new state as a value. However, fixing this means tackling
the knot tying in CgState and so is very difficult since it changes when
the thunk of the knot is forced which either leads to deadlock or to
compiler panic.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/58eccdbc0d46f37cabcb52c3f93b640ff90b24ed" style="color: #1068bf; text-decoration: none;">58eccdbc</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-01-31T18:46:47-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>codeGen: Fix two buglets in -fbounds-check logic
@Bodigrim noticed that the `compareByteArray#` bounds-checking logic had
flipped arguments and an off-by-one. For the sake of clarity I also
refactored occurrences of `cmmOffset` to rather use `cmmOffsetB`. I
suspect the former should be retired.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/584f03faed67c59895c90900ededb715a1a62528" style="color: #1068bf; text-decoration: none;">584f03fa</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-01-31T18:47:23-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make typechecker trace less strict
Fixes #21011
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/60ac73002fc6fb717f1838a2bb3cee6535ff77c9" style="color: #1068bf; text-decoration: none;">60ac7300</a></strong>
<div>
<span>by Elton</span>
<i>at 2022-02-01T12:28:49-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use braces in TH case pprint (fixes #20893)
This patch ensures that the pretty printer formats `case` statements
using braces (instead of layout) to remain consistent with the
formatting of other statements (like `do`)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fdda93b03e9be56122dd8445e7ee0f1d0f933a19" style="color: #1068bf; text-decoration: none;">fdda93b0</a></strong>
<div>
<span>by Elton</span>
<i>at 2022-02-01T12:28:49-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use braces in TH LambdaCase and where clauses
This patch ensures that the pretty printer formats LambdaCase and where
clauses using braces (instead of layout) to remain consistent with the
formatting of other statements (like `do` and `case`)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/06185102bb06d6d56e00d40172a6a473fc228501" style="color: #1068bf; text-decoration: none;">06185102</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-01T12:29:26-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Consistently upper-case "Note ["
This was achieved with
git ls-tree --name-only HEAD -r | xargs sed -i -e 's/note \[/Note \[/g'
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/88fba8a4b3c22e953a634b81dd0b67ec66eb5e72" style="color: #1068bf; text-decoration: none;">88fba8a4</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-01T12:29:26-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix a few Note inconsistencies
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/05548a2209f71b407028d42e1aad566697263199" style="color: #1068bf; text-decoration: none;">05548a22</a></strong>
<div>
<span>by Douglas Wilson</span>
<i>at 2022-02-02T19:26:06-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Address failures to inline
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/074945de11877b489a816141ee77cb96ddea8b0b" style="color: #1068bf; text-decoration: none;">074945de</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-02-02T19:26:41-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Two small improvements in the Simplifier
As #20941 describes, this patch implements a couple of small
fixes to the Simplifier. They make a difference principally
with -O0, so few people will notice. But with -O0 they can
reduce the number of Simplifer iterations.
* In occurrence analysis we avoid making x = (a,b) into a loop breaker
because we want to be able to inline x, or (more likely) do
case-elimination. But HEAD does not treat
x = let y = blah in (a,b)
in the same way. We should though, because we are going to float
that y=blah out of the x-binding. A one-line fix in OccurAnal.
* The crucial function exprIsConApp_maybe uses getUnfoldingInRuleMatch
(rightly) but the latter was deeply strange. In HEAD, if
rule-rewriting was off (-O0) we only looked inside stable
unfoldings. Very stupid. The patch simplifies.
* I also noticed that in simplStableUnfolding we were failing to
delete the DFun binders from the usage. So I added that.
Practically zero perf change across the board, except that we get more
compiler allocation in T3064 (which is compiled with -O0). There's a
good reason: we get better code. But there are lots of other small
compiler allocation decreases:
Metrics: compile_time/bytes allocated
---------------------
Baseline
Test Metric value New value Change
-----------------------------------------------------------------
PmSeriesG(normal) ghc/alloc 44,260,817 44,184,920 -0.2%
PmSeriesS(normal) ghc/alloc 52,967,392 52,891,632 -0.1%
PmSeriesT(normal) ghc/alloc 75,498,220 75,421,968 -0.1%
PmSeriesV(normal) ghc/alloc 52,341,849 52,265,768 -0.1%
T10421(normal) ghc/alloc 109,702,291 109,626,024 -0.1%
T10421a(normal) ghc/alloc 76,888,308 76,809,896 -0.1%
T10858(normal) ghc/alloc 125,149,038 125,073,648 -0.1%
T11276(normal) ghc/alloc 94,159,364 94,081,640 -0.1%
T11303b(normal) ghc/alloc 40,230,059 40,154,368 -0.2%
T11822(normal) ghc/alloc 107,424,540 107,346,088 -0.1%
T12150(optasm) ghc/alloc 76,486,339 76,426,152 -0.1%
T12234(optasm) ghc/alloc 55,585,046 55,507,352 -0.1%
T12425(optasm) ghc/alloc 88,343,288 88,265,312 -0.1%
T13035(normal) ghc/alloc 98,919,768 98,845,600 -0.1%
T13253-spj(normal) ghc/alloc 121,002,153 120,851,040 -0.1%
T16190(normal) ghc/alloc 290,313,131 290,074,152 -0.1%
T16875(normal) ghc/alloc 34,756,121 34,681,440 -0.2%
T17836b(normal) ghc/alloc 45,198,100 45,120,288 -0.2%
T17977(normal) ghc/alloc 39,479,952 39,404,112 -0.2%
T17977b(normal) ghc/alloc 37,213,035 37,137,728 -0.2%
T18140(normal) ghc/alloc 79,430,588 79,350,680 -0.1%
T18282(normal) ghc/alloc 128,303,182 128,225,384 -0.1%
T18304(normal) ghc/alloc 84,904,713 84,831,952 -0.1%
T18923(normal) ghc/alloc 66,817,241 66,731,984 -0.1%
T20049(normal) ghc/alloc 86,188,024 86,107,920 -0.1%
T5837(normal) ghc/alloc 35,540,598 35,464,568 -0.2%
T6048(optasm) ghc/alloc 99,812,171 99,736,032 -0.1%
T9198(normal) ghc/alloc 46,380,270 46,304,984 -0.2%
geo. mean -0.0%
Metric Increase:
T3064
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d2cce4532947367a5305783bd3e93c1858cded2e" style="color: #1068bf; text-decoration: none;">d2cce453</a></strong>
<div>
<span>by Morrow</span>
<i>at 2022-02-02T19:27:21-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix @since annotation on Nat
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6438fed95af5297f847b9bce06e27f6437e35b4e" style="color: #1068bf; text-decoration: none;">6438fed9</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-02-02T19:27:56-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Refactor the escaping kind check for data constructors
As #20929 pointed out, we were in-elegantly checking for escaping
kinds in `checkValidType`, even though that check was guaranteed
to succeed for type signatures -- it's part of kind-checking a type.
But for /data constructors/ we kind-check the pieces separately,
so we still need the check.
This MR is a pure refactor, moving the test from `checkValidType` to
`checkValidDataCon`.
No new tests; external behaviour doesn't change.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fb05e5ac2fff7b4bc11803ca8ff0b5f1a209ae8b" style="color: #1068bf; text-decoration: none;">fb05e5ac</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-02-02T19:28:31-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Replace sndOfTriple with sndOf3
I also cleaned up the imports slightly while I was at it.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fbc77d3a5525e810f6a08b1fc1b6ce3a73ce054e" style="color: #1068bf; text-decoration: none;">fbc77d3a</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-02T19:29:07-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Honour PERF_BASELINE_COMMIT when computing allowed metric changes
We now get all the commits between the PERF_BASELINE_COMMIT and HEAD and
check any of them for metric changes.
Fixes #20882
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0a82ae0d9c834661514f11fdf1183ef1b01c50ee" style="color: #1068bf; text-decoration: none;">0a82ae0d</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-02-02T23:49:58-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>More accurate unboxing
This patch implements a fix for #20817. It ensures that
* The final strictness signature for a function accurately
reflects the unboxing done by the wrapper
See Note [Finalising boxity for demand signatures]
and Note [Finalising boxity for let-bound Ids]
* A much better "layer-at-a-time" implementation of the
budget for how many worker arguments we can have
See Note [Worker argument budget]
Generally this leads to a bit more worker/wrapper generation,
because instead of aborting entirely if the budget is exceeded
(and then lying about boxity), we unbox a bit.
Binary sizes in increase slightly (around 1.8%) because of the increase
in worker/wrapper generation. The big effects are to GHC.Ix,
GHC.Show, GHC.IO.Handle.Internals. If we did a better job of dropping
dead code, this effect might go away.
Some nofib perf improvements:
Program Size Allocs Runtime Elapsed TotalMem
--------------------------------------------------------------------------------
VSD +1.8% -0.5% 0.017 0.017 0.0%
awards +1.8% -0.1% +2.3% +2.3% 0.0%
banner +1.7% -0.2% +0.3% +0.3% 0.0%
bspt +1.8% -0.1% +3.1% +3.1% 0.0%
eliza +1.8% -0.1% +1.2% +1.2% 0.0%
expert +1.7% -0.1% +9.6% +9.6% 0.0%
fannkuch-redux +1.8% -0.4% -9.3% -9.3% 0.0%
kahan +1.8% -0.1% +22.7% +22.7% 0.0%
maillist +1.8% -0.9% +21.2% +21.6% 0.0%
nucleic2 +1.7% -5.1% +7.5% +7.6% 0.0%
pretty +1.8% -0.2% 0.000 0.000 0.0%
reverse-complem +1.8% -2.5% +12.2% +12.2% 0.0%
rfib +1.8% -0.2% +2.5% +2.5% 0.0%
scc +1.8% -0.4% 0.000 0.000 0.0%
simple +1.7% -1.3% +17.0% +17.0% +7.4%
spectral-norm +1.8% -0.1% +6.8% +6.7% 0.0%
sphere +1.7% -2.0% +13.3% +13.3% 0.0%
tak +1.8% -0.2% +3.3% +3.3% 0.0%
x2n1 +1.8% -0.4% +8.1% +8.1% 0.0%
--------------------------------------------------------------------------------
Min +1.1% -5.1% -23.6% -23.6% 0.0%
Max +1.8% +0.0% +36.2% +36.2% +7.4%
Geometric Mean +1.7% -0.1% +6.8% +6.8% +0.1%
Compiler allocations in CI have a geometric mean of +0.1%; many small
decreases but there are three bigger increases (7%), all because we do
more worker/wrapper than before, so there is simply more code to
compile. That's OK.
Perf benchmarks in perf/should_run improve in allocation by a geo mean
of -0.2%, which is good. None get worse. T12996 improves by -5.8%
Metric Decrease:
T12996
Metric Increase:
T18282
T18923
T9630
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d1ef62889f0988317ce0eb495130021f27765689" style="color: #1068bf; text-decoration: none;">d1ef6288</a></strong>
<div>
<span>by Peter Trommler</span>
<i>at 2022-02-02T23:50:34-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Cmm: fix equality of expressions
Compare expressions and types when comparing `CmmLoad`s.
Fixes #21016
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e59446c6a682587c21424e5830f305ab2f8f8cfa" style="color: #1068bf; text-decoration: none;">e59446c6</a></strong>
<div>
<span>by Peter Trommler</span>
<i>at 2022-02-02T23:50:34-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Check type first then expression
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b0e1ef4a31899b0b20adcf0473f0814c2479e1e6" style="color: #1068bf; text-decoration: none;">b0e1ef4a</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-03T14:44:17-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add failing test for #20791
The test produces different output on static vs dynamic GHC builds.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cae1fb1732deef1b8269de96a88ef053148bb4d8" style="color: #1068bf; text-decoration: none;">cae1fb17</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-03T14:44:17-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Frontend01 passes with static GHC
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e343526bdf2f50aa5a843e8649acf8b597bc4d80" style="color: #1068bf; text-decoration: none;">e343526b</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-03T14:44:17-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Don't initialise plugins when there are no pipelines to run
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/abac45fc710e66bc84bfab35efc5813399aa333b" style="color: #1068bf; text-decoration: none;">abac45fc</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-03T14:44:17-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Mark prog003 as expected_broken on static way #20704
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/13300dfd5007b8b0c4aa782ccb40683e4e73ea27" style="color: #1068bf; text-decoration: none;">13300dfd</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-03T14:44:17-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Filter out -rtsopts in T16219 to make static/dynamic ways agree
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d89439f2a506dd05314674f282580c2cdf4d906f" style="color: #1068bf; text-decoration: none;">d89439f2</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-03T14:44:17-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>T13168: Filter out rtsopts for consistency between dynamic and static ways
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/00180cdfdf8d6d21df8a7cd9c7942e9a14ac44a3" style="color: #1068bf; text-decoration: none;">00180cdf</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-03T14:44:17-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Accept new output for T14335 test
This test was previously not run due to #20960
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1accdcff0cadc42f9d0192408e60f66bf33b464e" style="color: #1068bf; text-decoration: none;">1accdcff</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-03T14:44:17-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add flushes to plugin tests which print to stdout
Due to #20791 you need to explicitly flush as otherwise the output from
these tests doesn't make it to stdout.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d820f2e814531d12f4209fc207bbee411c648227" style="color: #1068bf; text-decoration: none;">d820f2e8</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-03T14:44:17-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove ghc_plugin_way
Using ghc_plugin_way had the unintended effect of meaning certain tests
weren't run at all when ghc_dynamic=true, if you delete this modifier
then the tests work in both the static and dynamic cases.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/aa5ef3402579da5523ee3d1fef7f26737b8d71fc" style="color: #1068bf; text-decoration: none;">aa5ef340</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-03T14:44:17-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Unbreak T13168 on windows
Fixes #14276
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/84ab0153a3527e7bd8b627ca559d782064af3c80" style="color: #1068bf; text-decoration: none;">84ab0153</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-03T14:44:53-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Rewrite CallerCC parser using ReadP
This allows us to remove the dependency on parsec and hence transitively
on text.
Also added some simple unit tests for the parser and fixed two small
issues in the documentation.
Fixes #21033
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4e6780bb44f81f81a39b6b362eef855e68431882" style="color: #1068bf; text-decoration: none;">4e6780bb</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-03T14:45:28-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Add debian 11 jobs (validate/release/nightly)
Fixes #21002
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/eddaa591a478e7598a9f5df4c26306e4fadbf08e" style="color: #1068bf; text-decoration: none;">eddaa591</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-04T10:01:59-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>compiler: Introduce and use RoughMap for instance environments
Here we introduce a new data structure, RoughMap, inspired by the
previous `RoughTc` matching mechanism for checking instance matches.
This allows [Fam]InstEnv to be implemented as a trie indexed by these
RoughTc signatures, reducing the complexity of instance lookup and
FamInstEnv merging (done during the family instance conflict test)
from O(n) to O(log n).
The critical performance improvement currently realised by this patch is
in instance matching. In particular the RoughMap mechanism allows us to
discount many potential instances which will never match for constraints
involving type variables (see Note [Matching a RoughMap]). In realistic
code bases matchInstEnv was accounting for 50% of typechecker time due
to redundant work checking instances when simplifying instance contexts
when deriving instances. With this patch the cost is significantly
reduced.
The larger constants in InstEnv creation do mean that a few small
tests regress in allocations slightly. However, the runtime of T19703 is
reduced by a factor of 4. Moreover, the compilation time of the Cabal
library is slightly improved.
A couple of test cases are included which demonstrate significant
improvements in compile time with this patch.
This unfortunately does not fix the testcase provided in #19703 but does
fix #20933
-------------------------
Metric Decrease:
T12425
Metric Increase:
T13719
T9872a
T9872d
hard_hole_fits
-------------------------
Co-authored-by: Matthew Pickering <matthewtpickering@gmail.com>
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/62d670eb3a1c059f1ff977471f8d77dac5cf21b8" style="color: #1068bf; text-decoration: none;">62d670eb</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-04T10:02:35-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Run testsuite dependency calculation before GHC is built
The main motivation for this patch is to allow tests to be added to the
testsuite which test things about the source tree without needing to
build GHC. In particular the notes linter can easily start failing and
by integrating it into the testsuite the process of observing these
changes is caught by normal validation procedures rather than having to
run the linter specially.
With this patch I can run
```
./hadrian/build test --flavour=devel2 --only="uniques"
```
In a clean tree to run the checkUniques linter without having to build
GHC.
Fixes #21029
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4bd52410d03f851f69f85d43855358733d5ceb6d" style="color: #1068bf; text-decoration: none;">4bd52410</a></strong>
<div>
<span>by Hécate Moonlight</span>
<i>at 2022-02-04T16:14:10-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add the Ix class to Foreign C integral types
Related CLC proposal is here: https://github.com/haskell/core-libraries-committee/issues/30
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/de6d7692af8efdf92d75647ad3734594cfd1e588" style="color: #1068bf; text-decoration: none;">de6d7692</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-04T16:14:47-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Drop dead code
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b79206f1add1c9e9a88f1cc9e2d2c47be9bfea3e" style="color: #1068bf; text-decoration: none;">b79206f1</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-04T16:14:47-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add comments
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/58d7faacafc975d522cbc9f56a7db1e46b37d4a1" style="color: #1068bf; text-decoration: none;">58d7faac</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-04T16:14:47-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>cmm: Introduce cmmLoadBWord and cmmLoadGCWord
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7217156c40240c0aed5ffd83ead0fe4ba0484c75" style="color: #1068bf; text-decoration: none;">7217156c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-04T16:14:47-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Introduce alignment in CmmLoad
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/99ea5f2cfa09f50bf3ea105821dc095942552e59" style="color: #1068bf; text-decoration: none;">99ea5f2c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-04T16:14:47-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Introduce alignment to CmmStore
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/606b59a55c543607742092897bb774f7cb88e65d" style="color: #1068bf; text-decoration: none;">606b59a5</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-04T16:14:47-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix array primop alignment
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1cf9616a379a084daaa4d7219ebb75aa3e358e05" style="color: #1068bf; text-decoration: none;">1cf9616a</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-04T16:14:47-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>llvmGen: Handle unaligned loads/stores
This allows us to produce valid code for indexWord8ArrayAs*# on
platforms that lack unaligned memory access.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8c18feba88aaa20b75b82c3fee7e8f742299461e" style="color: #1068bf; text-decoration: none;">8c18feba</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-04T16:14:47-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>primops: Fix documentation of setByteArray#
Previously the documentation was subtly incorrect regarding the bounds
of the operation. Fix this and add a test asserting that a zero-length
operation is in fact a no-op.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/88480e55f14c155516c96e716793c76f305d9303" style="color: #1068bf; text-decoration: none;">88480e55</a></strong>
<div>
<span>by nineonine</span>
<i>at 2022-02-04T20:35:45-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix unsound behavior of unlifted datatypes in ghci (#20194)
Previously, directly calling a function that pattern matches on an
unlifted data type which has at least two constructors in GHCi resulted
in a segfault.
This happened due to unaccounted return frame info table pointer. The fix is
to pop the above mentioned frame info table pointer when unlifted things are
returned. See Note [Popping return frame for unlifted things]
authors: bgamari, nineonine
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a5c7068cc89e8a398eb9c76089875b981a9d830f" style="color: #1068bf; text-decoration: none;">a5c7068c</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-02-04T20:36:20-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add Outputable instance for Messages
c.f. #20980
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bf495f7206741c81135c04ce6bb943c4a6729e80" style="color: #1068bf; text-decoration: none;">bf495f72</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-02-04T20:36:20-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add a missing restoreLclEnv
The commit
commit 18df4013f6eaee0e1de8ebd533f7e96c4ee0ff04
Date: Sat Jan 22 01:12:30 2022 +0000
Define and use restoreLclEnv
omitted to change one setLclEnv to restoreLclEnv, namely
the one in GHC.Tc.Errors.warnRedundantConstraints.
This new commit fixes the omission.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6af8e71ed7e749ba94e7a7eaf8b2229341bf35da" style="color: #1068bf; text-decoration: none;">6af8e71e</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-02-04T20:36:20-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve errors for non-existent labels
This patch fixes #17469, by improving matters when you use
non-existent field names in a record construction:
data T = MkT { x :: Int }
f v = MkT { y = 3 }
The check is now made in the renamer, in GHC.Rename.Env.lookupRecFieldOcc.
That in turn led to a spurious error in T9975a, which is fixed by
making GHC.Rename.Names.extendGlobalRdrEnvRn fail fast if it finds
duplicate bindings. See Note [Fail fast on duplicate definitions]
in that module for more details.
This patch was originated and worked on by Alex D (@nineonine)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/299acff08aa1b7b720ad2b69c459c514033bc395" style="color: #1068bf; text-decoration: none;">299acff0</a></strong>
<div>
<span>by nineonine</span>
<i>at 2022-02-05T19:21:49-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Exit with failure when -e fails (fixes #18411 #9916 #17560)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/549292eb3725eca61722ddd2cfb4d964ccba3fc7" style="color: #1068bf; text-decoration: none;">549292eb</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-05T19:22:25-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make implication tidying agree with Note [Tidying multiple names at once]
Note [Tidying multiple names at once] indicates that if multiple
variables have the same name then we shouldn't prioritise one of them
and instead rename them all to a1, a2, a3... etc
This patch implements that change, some error message changes as
expected.
Closes #20932
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2e9248b7f7f645851ceb49931d10b9c5e58d2bbb" style="color: #1068bf; text-decoration: none;">2e9248b7</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-06T01:43:56-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/m32: Accept any address within 4GB of program text
Previously m32 would assume that the program image was located near the
start of the address space and therefore assume that it wanted pages
in the bottom 4GB of address space. Instead we now check whether they
are within 4GB of whereever the program is loaded.
This is necessary on Windows, which now tends to place the image in high
memory. The eventual goal is to use m32 to allocate memory for linker
sections on Windows.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/86589b893c092ae900723e76848525f20f6cafbf" style="color: #1068bf; text-decoration: none;">86589b89</a></strong>
<div>
<span>by GHC GitLab CI</span>
<i>at 2022-02-06T01:43:56-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Generalize mmapForLinkerMarkExecutable
Renamed to mprotectForLinker and allowed setting of arbitrary protection
modes.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/88ef270aa0cecf2463396f93a273656de9df9433" style="color: #1068bf; text-decoration: none;">88ef270a</a></strong>
<div>
<span>by GHC GitLab CI</span>
<i>at 2022-02-06T01:43:56-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/m32: Add consistency-checking infrastructure
This adds logic, enabled in the `-debug` RTS for checking the internal
consistency of the m32 allocator. This area has always made me a bit
nervous so this should help me sleep better at night in exchange for
very little overhead.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2d6f0b17e3ce9326abd43e187910db0a5e519efa" style="color: #1068bf; text-decoration: none;">2d6f0b17</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-06T01:43:56-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/m32: Free large objects back to the free page pool
Not entirely convinced that this is worth doing.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e96f50beec172f5ff95769842cb9be724363311c" style="color: #1068bf; text-decoration: none;">e96f50be</a></strong>
<div>
<span>by GHC GitLab CI</span>
<i>at 2022-02-06T01:43:56-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/m32: Increase size of free page pool to 256 pages
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fc083b480adedf26d47f880402f111680ec34183" style="color: #1068bf; text-decoration: none;">fc083b48</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-06T01:43:56-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Dump memory map on memory mapping failures
Fixes #20992.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/633296bca950f0ef17313f8487d2f5ddd369bc4f" style="color: #1068bf; text-decoration: none;">633296bc</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-06T01:43:56-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix macro redefinition warnings for PRINTF
* Move `PRINTF` macro from `Stats.h` to `Stats.c` as it's only needed in
the latter.
* Undefine `PRINTF` at the end of `Messages.h` to avoid leaking it.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/37d435d263832ffb2808dad0ccd50110c9f0c430" style="color: #1068bf; text-decoration: none;">37d435d2</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-02-06T01:44:32-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Purge DynFlags from GHC.Stg
Also derive some more instances. GHC doesn't need them, but downstream
consumers may need to e.g. put stuff in maps.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/886baa345f372a2a160cecb3c25c8b38ab0e17ea" style="color: #1068bf; text-decoration: none;">886baa34</a></strong>
<div>
<span>by Peter Trommler</span>
<i>at 2022-02-06T10:58:18+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>RTS: Fix cabal specification
In 35bea01b xxhash.c was removed. Remove the extra-source-files
stanza referring to it.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/27581d77d489119da5dc1104793503b10240660d" style="color: #1068bf; text-decoration: none;">27581d77</a></strong>
<div>
<span>by Alex D</span>
<i>at 2022-02-06T20:50:44-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: remove redundant import</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4ff19981106230e1a5c8e03fde5e31e5e906c95b" style="color: #1068bf; text-decoration: none;">4ff19981</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-02-07T11:04:43-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>GHC.HsToCore.Coverage: No more HscEnv, less DynFlags
Progress towards #20730
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b09389a6b658f8bdc5c90003d1e79d5d092fec9e" style="color: #1068bf; text-decoration: none;">b09389a6</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-02-07T11:04:43-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Create `CoverageConfig`
As requested by @mpickering to collect the information we project from
`HscEnv`
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ff867c460db9cfc43f5697c8e582f8c1ea4bd572" style="color: #1068bf; text-decoration: none;">ff867c46</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2022-02-07T11:05:24-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Avoid using removed utils/checkUniques in validate
Asked the question:
https://gitlab.haskell.org/ghc/ghc/-/merge_requests/7460/diffs#4061f4d17546e239dd10d78c6b48668c2a288e02_1_0
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a9355e84480e421a22fee57d6ee24d9ec059e128" style="color: #1068bf; text-decoration: none;">a9355e84</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-02-08T05:27:25-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Allow HasField in quantified constraints
We perform validity checking on user-written HasField instances,
for example to disallow:
data Foo a = Foo { fld :: Int }
instance HasField "fld" (Foo a) Bool
However, these checks were also being made on quantified constraints,
e.g.
data Bar where
Bar :: (forall a. HasField s (Foo a) Int) => Proxy s -> Bar
This patch simply skips validity checking for quantified constraints,
in line with what we already do for equality constraints such as
Coercible.
Fixes #20989
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6d77d3d8d6cedb840e1a86a3b23d6e6c1409ccbd" style="color: #1068bf; text-decoration: none;">6d77d3d8</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-02-08T05:28:05-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Relax TyEq:N: allow out-of-scope newtype DataCon
The 'bad_newtype' assertion in GHC.Tc.Solver.Canonical.canEqCanLHSFinish
failed to account for the possibility that the newtype constructor
might not be in scope, in which case we don't provide any guarantees
about canonicalising away a newtype on the RHS of a representational
equality.
Fixes #21010
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a893d2f383212271644401c7088cf937eb453fa3" style="color: #1068bf; text-decoration: none;">a893d2f3</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-08T05:28:42-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove linter dependency on lint-submods
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/457a5b9c6eadfd13548f25c5568d5c802d22f411" style="color: #1068bf; text-decoration: none;">457a5b9c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-08T05:28:42-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>notes-util: initial commit
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1a9438594d6d5280dfe43e4e597dd0380963268d" style="color: #1068bf; text-decoration: none;">1a943859</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-08T05:28:42-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Add lint-notes job
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bc5cbce61b57f57cadf5c25fa3e60cf34c3b98ea" style="color: #1068bf; text-decoration: none;">bc5cbce6</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-08T05:28:42-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add notes linter to testsuite
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/38c6e301165777b88cc172aafed1b33d6f42099b" style="color: #1068bf; text-decoration: none;">38c6e301</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-08T05:28:42-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix some notes
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c3aac0f84d015165884681417905b51ecb7a168b" style="color: #1068bf; text-decoration: none;">c3aac0f8</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-08T05:28:42-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add suggestion mode to notes-util
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5dd29aeac4da7b4183bef0737d2f7223ddb9a2a4" style="color: #1068bf; text-decoration: none;">5dd29aea</a></strong>
<div>
<span>by Cale Gibbard</span>
<i>at 2022-02-08T05:29:18-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>`hscSimpleIface` drop fingerprint param and ret
`hscSimpleIface` does not depend on or modify the `Maybe Fingerprint` it
is given, only passes it through, so get rid of the extraneous passing.
Perhaps the intent was that there would be an iface fingerprint check of
some sort? but this was never done. If/when we we want to do that, we
can add it back then.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4bcbd731ab173b428133a6c093bd4f1660563247" style="color: #1068bf; text-decoration: none;">4bcbd731</a></strong>
<div>
<span>by Cale Gibbard</span>
<i>at 2022-02-08T05:29:54-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Document `hscIncrementalFrontend` and flip bool
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b713db1ec3f7c1fb660f157c421c99d4db4dfbd3" style="color: #1068bf; text-decoration: none;">b713db1e</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-02-08T05:30:29-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>StgToCmm: Get rid of GHC.Driver.Session imports
`DynFlags` is gone, but let's move a few trivial things around to get
rid of its module too.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f115c382a0b0cc9299e73bcb8a11ad97c5fe7c57" style="color: #1068bf; text-decoration: none;">f115c382</a></strong>
<div>
<span>by Gleb Popov</span>
<i>at 2022-02-08T05:31:05-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix build on recent FreeBSD.
Recent FreeBSD versions gained the sched_getaffinity function, which made two
mutually exclusive #ifdef blocks to be enabled.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3320ab409939b5450f130edc9f882bde2970e0ff" style="color: #1068bf; text-decoration: none;">3320ab40</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-08T10:42:04-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/MemoryMap: Use mach_-prefixed type names
There appears to be some inconsistency in system-call type naming across
Darwin toolchains. Specifically:
* the `address` argument to `mach_vm_region` apparently wants to be a
`mach_vm_address_t *`, not a `vm_address_t *`
* the `vmsize` argument to `mach_vm_region` wants to be a
`mach_vm_size_t`, not a `vm_size_t`
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b33f0cfabfcace98bb8b77a5bce6c6efba076cf6" style="color: #1068bf; text-decoration: none;">b33f0cfa</a></strong>
<div>
<span>by Richard Eisenberg</span>
<i>at 2022-02-08T10:42:41-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Document that reifyRoles includes kind parameters
Close #21056
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bd493ed6a63e41855f90c210f6cf1bace9199cf0" style="color: #1068bf; text-decoration: none;">bd493ed6</a></strong>
<div>
<span>by PHO</span>
<i>at 2022-02-08T10:43:19-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Don't try to build stage1 with -eventlog if stage0 doesn't provide it
Like -threaded, stage0 isn't guaranteed to have an event-logging RTS.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/03c2de0f4344d013522be3bc5a57b57312075957" style="color: #1068bf; text-decoration: none;">03c2de0f</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-09T03:56:22-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Use absolute paths for config.libdir
Fixes #21052
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ef2945254987bb0d68fd366f9d19c71d597ae841" style="color: #1068bf; text-decoration: none;">ef294525</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-09T03:56:22-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Clean up old/redundant predicates
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a39ed908abd91b7863f8bd9ddfd72bc11535c451" style="color: #1068bf; text-decoration: none;">a39ed908</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-09T03:56:22-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Add missing dependency on ghcconfig
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a172be07e3dce758a2325104a3a37fc8b1d20c9c" style="color: #1068bf; text-decoration: none;">a172be07</a></strong>
<div>
<span>by PHO</span>
<i>at 2022-02-09T03:56:59-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Implement System.Environment.getExecutablePath for NetBSD
and also use it from GHC.BaseDir.getBaseDir
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/62fa126d0f04c507e622c1f0356f26c9692e2b8e" style="color: #1068bf; text-decoration: none;">62fa126d</a></strong>
<div>
<span>by PHO</span>
<i>at 2022-02-09T03:57:37-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix a portability issue in m4/find_llvm_prog.m4
`test A == B' is a Bash extension, which doesn't work on platforms where
/bin/sh is not Bash.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fd9981e347144ce69f4747bd635789f25b673f93" style="color: #1068bf; text-decoration: none;">fd9981e3</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2022-02-09T03:58:13-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Look through untyped TH splices in tcInferAppHead_maybe
Previously, surrounding a head expression with a TH splice would defeat
`tcInferAppHead_maybe`, preventing some expressions from typechecking that
used to typecheck in previous GHC versions (see #21038 for examples). This is
simple enough to fix: just look through `HsSpliceE`s in `tcInferAppHead_maybe`.
I've added some additional prose to `Note [Application chains and heads]` in
`GHC.Tc.Gen.App` to accompany this change.
Fixes #21038.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/009759811abb96c8d9a16126ef5c7bdea44a65d0" style="color: #1068bf; text-decoration: none;">00975981</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-02-09T03:58:53-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add test for #21037
This program was rejected by GHC 9.2, but is accepted
on newer versions of GHC. This patch adds a regression test.
Closes #21037
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fad0b2b01c24159bea9204d45e38fb89eb0d7403" style="color: #1068bf; text-decoration: none;">fad0b2b0</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-09T08:29:46-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Rename -merge-objs flag to --merge-objs
For consistency with --make and friends.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1dbe5b2a97c41b3f24a48372ba25faeae08e8cd6" style="color: #1068bf; text-decoration: none;">1dbe5b2a</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-09T08:30:22-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>driver: Filter out our own boot module in hptSomeThingsBelow
hptSomeThingsBelow would return a list of modules which contain the
.hs-boot file for a particular module. This caused some problems because
we would try and find the module in the HPT (but it's not there when
we're compiling the module itself).
Fixes #21058
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2b1cced18159171a4d6e730ba1d69cd024babb8d" style="color: #1068bf; text-decoration: none;">2b1cced1</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-02-09T20:42:23-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>NCG: minor code factorization
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e01ffec2456739bcfba750f0c36716ff697404bf" style="color: #1068bf; text-decoration: none;">e01ffec2</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-02-09T20:42:23-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ByteCode: avoid out-of-bound read
Cf https://gitlab.haskell.org/ghc/ghc/-/issues/18431#note_287139
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/53c26e79961b6fac249425b1023e92646cdbfe41" style="color: #1068bf; text-decoration: none;">53c26e79</a></strong>
<div>
<span>by Ziyang Liu</span>
<i>at 2022-02-09T20:43:02-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Include ru_name in toHsRule message
See #18147
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3df06922f03191310ebee0547de1782eeb6bda67" style="color: #1068bf; text-decoration: none;">3df06922</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-09T20:43:39-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Rename MemoryMap.[ch] -> ReportMemoryMap.[ch]
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e219ac826b05db833531028e0663f62f12eff010" style="color: #1068bf; text-decoration: none;">e219ac82</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-09T20:43:39-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Move mmapForLinker and friends to linker/MMap.c
They are not particularly related to linking.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/30e205ca1e8d78a538e0217e3cb07f13396900df" style="color: #1068bf; text-decoration: none;">30e205ca</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-09T20:43:39-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker: Drop dead IA64 code
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4d3a306dce59649b303ac7aba56758aff3dee077" style="color: #1068bf; text-decoration: none;">4d3a306d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-09T20:43:39-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker/MMap: Use MemoryAccess in mmapForLinker
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1db4f1fe7603c338ead0ac7e1ecfd0d8354d37bf" style="color: #1068bf; text-decoration: none;">1db4f1fe</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-09T20:43:39-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>linker: Don't use MAP_FIXED
As noted in #21057, we really shouldn't be using MAP_FIXED. I would much
rather have the process crash with a "failed to map" error than randomly
overwrite existing mappings.
Closes #21057.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1eeae25c9541959f88b1063e90c66972a602c5c3" style="color: #1068bf; text-decoration: none;">1eeae25c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-09T20:43:39-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/mmap: Refactor mmapForLinker
Here we try to separate the policy decisions of where to place mappings
from the mechanism of creating the mappings. This makes things
significantly easier to follow.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ac2d18a7353cd3ac1ba4b5993f2776fe0c5eedc9" style="color: #1068bf; text-decoration: none;">ac2d18a7</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-02-09T20:44:18-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add some perf tests for coercions
This patch adds some performance tests for programs that create
large coercions. This is useful because the existing test coverage
is not very representative of real-world situations. In particular,
this adds a test involving an extensible records library, a common
pain-point for users.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/48f257151f30f6b4d2f8b1a6ea4185ccd00ebd95" style="color: #1068bf; text-decoration: none;">48f25715</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-02-10T04:35:35-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add late cost centre support
This allows cost centres to be inserted after the core optimization
pipeline has run.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0ff70427c78b57558da0f966a08013090ac51fd1" style="color: #1068bf; text-decoration: none;">0ff70427</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-02-10T04:36:11-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Docs:Mention that safe calls don't keep their arguments alive.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1d3ed1687f8eb5023338499f5f548a5b39074349" style="color: #1068bf; text-decoration: none;">1d3ed168</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-10T04:36:46-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>PEi386: Drop Windows Vista fallback in addLibrarySearchPath
We no longer support Windows Vista.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2a6f2681ad53899869473343e845bee189a809c3" style="color: #1068bf; text-decoration: none;">2a6f2681</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-10T04:36:46-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>linker/PEi386: Make addLibrarySearchPath long-path aware
Previously `addLibrarySearchPath` failed to normalise the added path to
UNC form before passing it to `AddDllDirectory`. Consequently, the call
was subject to the MAX_PATH restriction, leading to the failure of
`test-defaulting-plugin-fail`, among others. Happily, this also nicely
simplifies the implementation.
Closes #21059.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2a47ee9c65140ad5d72ff27949f3fc7948569d9e" style="color: #1068bf; text-decoration: none;">2a47ee9c</a></strong>
<div>
<span>by Daniel Gröber</span>
<i>at 2022-02-10T19:18:58-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ghc-boot: Simplify writePackageDb permissions handling
Commit ef8a3fbf1 ("ghc-boot: Fix metadata handling of writeFileAtomic")
introduced a somewhat over-engineered fix for #14017 by trying to preserve
the current permissions if the target file already exists.
The problem in the issue is simply that the package db cache file should be
world readable but isn't if umask is too restrictive. In fact the previous
fix only handles part of this problem. If the file isn't already there in a
readable configuration it wont make it so which isn't really ideal either.
Rather than all that we now simply always force all the read access bits to
allow access while leaving the owner at the system default as it's just not
our business to mess with it.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a1d979682caeac0c9a99ec213ae53a15a82a3682" style="color: #1068bf; text-decoration: none;">a1d97968</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-10T19:19:34-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump Cabal submodule
Adapts GHC to the factoring-out of `Cabal-syntax`.
Fixes #20991.
Metric Decrease:
haddock.Cabal
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/89cf8caac369279402443ae61bfa8d8d28f5d67f" style="color: #1068bf; text-decoration: none;">89cf8caa</a></strong>
<div>
<span>by Morrow</span>
<i>at 2022-02-10T19:20:13-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add metadata to integer-gmp.cabal
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c995b7e7cfbd3584509bd31a8ea5b840f9fcb20e" style="color: #1068bf; text-decoration: none;">c995b7e7</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-10T19:20:48-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>eventlog: Fix event type of EVENT_IPE
This leads to corrupted eventlogs because the size of EVENT_IPE is
completely wrong.
Fixes a bug introduced in 2e29edb7421c21902b47d130d45f60d3f584a0de
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/59ba8fb3fb2bd7ac99b559141bf87a39c72e8a00" style="color: #1068bf; text-decoration: none;">59ba8fb3</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-10T19:20:48-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>eventlog: Fix event type of MEM_RETURN
This leads to corrupted eventlogs because the size of EVENT_MEM_RETURN is
completely wrong.
Fixes a bug introduced in 2e29edb7421c21902b47d130d45f60d3f584a0de
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/19413d09a3939c97a8a3b8890f97c3cf48af31d1" style="color: #1068bf; text-decoration: none;">19413d09</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-10T19:20:48-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>eventlog: Delete misleading comment in gen_event_types.py
Not all events start with CapNo and there's not logic I could see which
adds this to the length.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e06f49c0064c61fec5fa79b034dee5fcb1a15247" style="color: #1068bf; text-decoration: none;">e06f49c0</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-10T19:20:48-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>eventlog: Fix size of TICKY_COUNTER_BEGIN_SAMPLE
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2f99255bc390db543ae57dec36a037cae9cd2996" style="color: #1068bf; text-decoration: none;">2f99255b</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-10T19:21:24-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix copy-pasto in prof-late-ccs docs
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/19deb002daa74de15cebaae3d861e6f2f932f7fd" style="color: #1068bf; text-decoration: none;">19deb002</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-10T19:21:59-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Refine tcSemigroupWarnings to work in ghc-prim
ghc-prim doesn't depend on base so can't have any Monoid or Semigroup
instances. However, attempting to load these definitions ran into issues
when the interface for `GHC.Base` did exist as that would try and load
the interface for `GHC.Types` (which is the module we are trying to
compile and has no interface).
The fix is to just not do this check when we are compiling a module in
ghc-prim.
Fixes #21069
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/34dec6b75dbcc2bf057b1dacbb2877faaafa2a74" style="color: #1068bf; text-decoration: none;">34dec6b7</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-02-11T17:55:34-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Decrease the size of the LargeRecord test
This test was taking too long to run, so this patch makes it smaller.
-------------------------
Metric Decrease:
LargeRecord
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9cab90d9ffbaa9fac8458a63f82809f4b0be7d2b" style="color: #1068bf; text-decoration: none;">9cab90d9</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-11T22:27:19-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make sure all platforms have a release job
The release bindists are currently a mixture of validate and release
builds. This is bad because the validate builds don't have profiling
libraries. The fix is to make sure there is a release job for each
platform we want to produce a release for.t
Fixes #21066
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4bce35758ca2f94b3f1056211fa0c2d5da550b3e" style="color: #1068bf; text-decoration: none;">4bce3575</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-11T22:27:54-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Make sure all tests trigger ghc rebuild
I made a mistake when implementing #21029 which meant that certain tests
didn't trigger a GHC recompilation. By adding the `test:ghc` target to
the default settings all tests will now depend on this target unless
explicitly opting out via the no_deps modifier.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/90a26f8b0dd99129d3fd7fe28127cb69abd46328" style="color: #1068bf; text-decoration: none;">90a26f8b</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-02-11T22:28:34-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix documentation about Word64Rep/Int64Rep (#16964)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0e93023eef174262310737004d398bc7a606939a" style="color: #1068bf; text-decoration: none;">0e93023e</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-02-12T13:59:41+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Tag inference work.
This does three major things:
* Enforce the invariant that all strict fields must contain tagged
pointers.
* Try to predict the tag on bindings in order to omit tag checks.
* Allows functions to pass arguments unlifted (call-by-value).
The former is "simply" achieved by wrapping any constructor allocations with
a case which will evaluate the respective strict bindings.
The prediction is done by a new data flow analysis based on the STG
representation of a program. This also helps us to avoid generating
redudant cases for the above invariant.
StrictWorkers are created by W/W directly and SpecConstr indirectly.
See the Note [Strict Worker Ids]
Other minor changes:
* Add StgUtil module containing a few functions needed by, but
not specific to the tag analysis.
-------------------------
Metric Decrease:
T12545
T18698b
T18140
T18923
LargeRecord
Metric Increase:
LargeRecord
ManyAlternatives
ManyConstructors
T10421
T12425
T12707
T13035
T13056
T13253
T13253-spj
T13379
T15164
T18282
T18304
T18698a
T1969
T20049
T3294
T4801
T5321FD
T5321Fun
T783
T9233
T9675
T9961
T19695
WWRec
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/744f8a1196d5853d507f2751fd39fe35395684e1" style="color: #1068bf; text-decoration: none;">744f8a11</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2022-02-12T17:13:55-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Only check the exit code in derefnull & divbyzero tests on OpenBSD
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/eeead9fc9bdb5e1add09a9c3aa40df9a77d9eac3" style="color: #1068bf; text-decoration: none;">eeead9fc</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-13T03:26:14-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/Adjustor: Ensure that allocateExecPage succeeded
Previously we failed to handle the case that `allocateExecPage` failed.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/afdfaff0fd4ed8162997fe904924d2ce528be285" style="color: #1068bf; text-decoration: none;">afdfaff0</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-13T03:26:14-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Drop DEC Alpha adjustor implementation
The last Alpha chip was produced in 2004.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/191dfd2d88f6d2fd7a879f14da26fe88e616c8ea" style="color: #1068bf; text-decoration: none;">191dfd2d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-13T03:26:14-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/adjustor: Split Windows path out of NativeAmd64
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/be591e27c76f1eaee79df671d8cf7e39d3d41720" style="color: #1068bf; text-decoration: none;">be591e27</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-13T03:26:14-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Initial commit of AdjustorPool
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d6d48b167a35eebe3cecd047814c10f4685906d3" style="color: #1068bf; text-decoration: none;">d6d48b16</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-13T03:26:14-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Introduce initAdjustors
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/eab37902d0cbfc4a8362aa0f0b2cf8eb3e9ce27f" style="color: #1068bf; text-decoration: none;">eab37902</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-13T03:26:14-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>adjustors/NativeAmd64: Use AdjustorPool
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/974e73afd519e1189f01ab3e96d3fe0212e74b05" style="color: #1068bf; text-decoration: none;">974e73af</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-13T03:26:14-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>adjustors/NativeAmd64Mingw: Use AdjustorPool
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/95fab83f3af2e3b54fb59d761b38466344608ed8" style="color: #1068bf; text-decoration: none;">95fab83f</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-13T03:26:14-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>configure: Fix result reporting of adjustors method check
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ef5cf55d71e84a0a42596b4ec253ecb0d63f149b" style="color: #1068bf; text-decoration: none;">ef5cf55d</a></strong>
<div>
<span>by nikshalark</span>
<i>at 2022-02-13T03:26:16-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>(#21044) Documented arithmetic functions in base.
Didn't get it right the ninth time. Now everything's formatted correctly.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/acb482cc198bc6fbc5b0f7d93fd493853c77671f" style="color: #1068bf; text-decoration: none;">acb482cc</a></strong>
<div>
<span>by Takenobu Tani</span>
<i>at 2022-02-16T05:27:17-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Relax load_load_barrier for aarch64
This patch relaxes the instruction for load_load_barrier().
Current load_load_barrier() implements full-barrier with `dmb sy`.
It's too strong to order load-load instructions.
We can relax it by using `dmb ld`.
If current load_load_barrier() is used for full-barriers
(load/store - load/store barrier), this patch is not suitable.
See also linux-kernel's smp_rmb() implementation:
https://github.com/torvalds/linux/blob/v5.14/arch/arm64/include/asm/barrier.h#L90
Hopefully, it's better to use `dmb ishld` rather than `dmb ld`
to improve performance. However, I can't validate effects on
a real many-core Arm machine.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/84eaa26fda63abb2681215a42c152e770ea552ca" style="color: #1068bf; text-decoration: none;">84eaa26f</a></strong>
<div>
<span>by Oleg Grenrus</span>
<i>at 2022-02-16T05:27:56-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add test for #20562
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2c28620d5ed09aaffa877b5e14b900a1ad789af1" style="color: #1068bf; text-decoration: none;">2c28620d</a></strong>
<div>
<span>by Adam Sandberg Ericsson</span>
<i>at 2022-02-16T05:28:32-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: remove struct StgRetry, it is never used
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/74bf9bb5b83e5ff335847fc2e1d3def413e7df90" style="color: #1068bf; text-decoration: none;">74bf9bb5</a></strong>
<div>
<span>by Adam Sandberg Ericsson</span>
<i>at 2022-02-16T05:28:32-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: document some closure types
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/316312ecd12831f22bd8f7a8aa229c045bbbbedc" style="color: #1068bf; text-decoration: none;">316312ec</a></strong>
<div>
<span>by nineonine</span>
<i>at 2022-02-16T05:29:08-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ghci: fix -ddump-stg-cg (#21052)
The pre-codegen Stg AST dump was not available in ghci because it
was performed in 'doCodeGen'. This was now moved to 'coreToStg' area.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a6411d74ee742c6828c104f1328e6c60d00de993" style="color: #1068bf; text-decoration: none;">a6411d74</a></strong>
<div>
<span>by Adam Sandberg Ericsson</span>
<i>at 2022-02-16T05:29:43-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>docs: mention -fprof-late-ccs in the release notes
And note which compiler version it was added in.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4127e86dfdfcfce60e5029c716c98c244851779a" style="color: #1068bf; text-decoration: none;">4127e86d</a></strong>
<div>
<span>by Adam Sandberg Ericsson</span>
<i>at 2022-02-16T05:29:43-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>docs: fix release notes formatting
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4e6c80197f1cc46dfdef0300de46847c7cfbdcb0" style="color: #1068bf; text-decoration: none;">4e6c8019</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-17T05:25:28-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Always define __GLASGOW_HASKELL_PATCHLEVEL1/2__ macros
As #21076 reports if you are using `-Wcpp-undef` then you get warnings
when using the `MIN_VERSION_GLASGOW_HASKELL` macro because
__GLASGOW_HASKELL_PATCHLEVEL2__ is very rarely explicitliy set (as
version numbers are not 4 components long).
This macro was introduced in 3549c952b535803270872adaf87262f2df0295a4
and it seems the bug has existed ever since.
Fixes #21076
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/67dd5724297094af93be1887ef000845722c6f2b" style="color: #1068bf; text-decoration: none;">67dd5724</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-17T05:26:03-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/AdjustorPool: Silence unused function warning
bitmap_get is only used in the DEBUG RTS configuration.
Fixes #21079.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4b04f7e175a01b30e098af63dfabe6ea068e9b0b" style="color: #1068bf; text-decoration: none;">4b04f7e1</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-02-20T13:56:15-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Track object file dependencies for TH accurately (#20604)
`hscCompileCoreExprHook` is changed to return a list of `Module`s required
by a splice. These modules are accumulated in the TcGblEnv (tcg_th_needed_mods).
Dependencies on the object files of these modules are recording in the
interface.
The data structures in `LoaderState` are replaced with more efficient versions
to keep track of all the information required. The
MultiLayerModulesTH_Make allocations increase slightly but runtime is
faster.
Fixes #20604
-------------------------
Metric Increase:
MultiLayerModulesTH_Make
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/92ab3ff2fbed8847747b43592546f6b98a6d03ec" style="color: #1068bf; text-decoration: none;">92ab3ff2</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-02-20T13:56:55-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use diagnostics for "missing signature" errors
This patch makes the "missing signature" errors from
"GHC.Rename.Names" use the diagnostic infrastructure.
This encompasses missing type signatures for top-level bindings
and pattern synonyms, as well as missing kind signatures for
type constructors.
This patch also renames TcReportMsg to TcSolverReportMsg,
and adds a few convenience functions to compute whether such a
TcSolverReportMsg is an expected/actual message.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/845284a5ddceb043b1b1af6f130143f1ef160835" style="color: #1068bf; text-decoration: none;">845284a5</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-02-20T13:57:34-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Generically: remove redundant Semigroup constraint
This patch removes a redundant Semigroup constraint on the Monoid
instance for Generically. This constraint can cause trouble when
one wants to derive a Monoid instance via Generically through a type
that doesn't itself have a Semigroup instance, for example:
data Point2D a = Point2D !a !a
newtype Vector2D a = Vector2D { tip :: Point2D a }
deriving ( Semigroup, Monoid )
via Generically ( Point2D ( Sum a ) )
In this case, we should not require there to be an instance
Semigroup ( Point2D ( Sum a ) )
as all we need is an instance for the generic representation of
Point2D ( Sum a ), i.e. Semigroup ( Rep ( Point2D ( Sum a) ) () ).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6b468f7f6185e68ccdea547beb090092b77cf87e" style="color: #1068bf; text-decoration: none;">6b468f7f</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-20T13:58:10-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump time submodule to 1.12.1
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2f0ceecc42789558c648c6dcff431d3c8ac3aa46" style="color: #1068bf; text-decoration: none;">2f0ceecc</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-02-20T19:06:19+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: detect if 'main' is not a haskell file and add it to appropriate list of sources
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7ce1b694f7be7fbf6e2d7b7eb0639e61fbe358c6" style="color: #1068bf; text-decoration: none;">7ce1b694</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-02-21T11:18:58+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Reinstallable GHC
This patch allows ghc and its dependencies to be built using a normal
invocation of cabal-install. Each componenent which relied on generated
files or additional configuration now has a Setup.hs file.
There are also various fixes to the cabal files to satisfy
cabal-install.
There is a new hadrian command which will build a stage2 compiler and
then a stage3 compiler by using cabal.
```
./hadrian/build build-cabal
```
There is also a new CI job which tests running this command.
For the 9.4 release we will upload all the dependent executables to
hackage and then end users will be free to build GHC and GHC executables
via cabal.
There are still some unresolved questions about how to ensure soundness
when loading plugins into a reinstalled GHC (#20742) which will be
tighted up in due course.
Fixes #19896
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/78fbc3a364e85dc5f31f865f397cd4000294444f" style="color: #1068bf; text-decoration: none;">78fbc3a3</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-21T15:14:28-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Enable late-ccs when building profiled_ghc
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2b890c89ba5de9bbf91388d7268919d5c7769bbf" style="color: #1068bf; text-decoration: none;">2b890c89</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-22T15:59:33-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Don't print names of all fragile tests on all runs
This information about fragile tests is pretty useless but annoying on
CI where you have to scroll up a long way to see the actual issues.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0b36801f8eec9b9a7cc512135a13eaf89da370a2" style="color: #1068bf; text-decoration: none;">0b36801f</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-02-22T16:00:14-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Forbid standalone instances for built-in classes
`check_special_inst_head` includes logic that disallows hand-written
instances for built-in classes such as Typeable, KnownNat
and KnownSymbol.
However, it also allowed standalone deriving declarations. This was
because we do want to allow standalone deriving instances with
Typeable as they are harmless, but we certainly don't want to allow
instances for e.g. KnownNat.
This patch ensures that we don't allow derived instances for
KnownNat, KnownSymbol (and also KnownChar, which was previously
omitted entirely).
Fixes #21087
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ace66decb46541a33cddc9f91a4221e3dad8b537" style="color: #1068bf; text-decoration: none;">ace66dec</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-02-22T16:30:59-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove -Wunticked-promoted-constructors from -Wall
Update manual; explain ticks as optional disambiguation
rather than the preferred default.
This is a part of #20531.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/558c7d554b9724abfaa2bcc1f42050e67b36a988" style="color: #1068bf; text-decoration: none;">558c7d55</a></strong>
<div>
<span>by Hugo</span>
<i>at 2022-02-22T16:31:01-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>docs: fix error in annotation guide code snippet
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a599abbad939820c666ced00ae9eb33706a4f360" style="color: #1068bf; text-decoration: none;">a599abba</a></strong>
<div>
<span>by Richard Eisenberg</span>
<i>at 2022-02-23T08:16:07-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Kill derived constraints
Co-authored by: Sam Derbyshire
Previously, GHC had three flavours of constraint:
Wanted, Given, and Derived. This removes Derived constraints.
Though serving a number of purposes, the most important role
of Derived constraints was to enable better error messages.
This job has been taken over by the new RewriterSets, as explained
in Note [Wanteds rewrite wanteds] in GHC.Tc.Types.Constraint.
Other knock-on effects:
- Various new Notes as I learned about under-described bits of GHC
- A reshuffling around the AST for implicit-parameter bindings,
with better integration with TTG.
- Various improvements around fundeps. These were caused by the
fact that, previously, fundep constraints were all Derived,
and Derived constraints would get dropped. Thus, an unsolved
Derived didn't stop compilation. Without Derived, this is no
longer possible, and so we have to be considerably more careful
around fundeps.
- A nice little refactoring in GHC.Tc.Errors to center the work
on a new datatype called ErrorItem. Constraints are converted
into ErrorItems at the start of processing, and this allows for
a little preprocessing before the main classification.
- This commit also cleans up the behavior in generalisation around
functional dependencies. Now, if a variable is determined by
functional dependencies, it will not be quantified. This change
is user facing, but it should trim down GHC's strange behavior
around fundeps.
- Previously, reportWanteds did quite a bit of work, even on an empty
WantedConstraints. This commit adds a fast path.
- Now, GHC will unconditionally re-simplify constraints during
quantification. See Note [Unconditionally resimplify constraints when
quantifying], in GHC.Tc.Solver.
Close #18398.
Close #18406.
Solve the fundep-related non-confluence in #18851.
Close #19131.
Close #19137.
Close #20922.
Close #20668.
Close #19665.
-------------------------
Metric Decrease:
LargeRecord
T9872b
T9872b_defer
T9872d
TcPlugin_RewritePerf
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2ed22ba19e6324fda81a7d638f6f3b58254f915f" style="color: #1068bf; text-decoration: none;">2ed22ba1</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-23T08:16:43-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Introduce predicate for when to enable source notes (needSourceNotes)
There were situations where we were using debugLevel == 0 as a proxy for
whether to retain source notes but -finfo-table-map also enables and
needs source notes so we should act consistently in both cases.
Ticket #20847
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/37deb893a915387d663416936b63f8fb74298f42" style="color: #1068bf; text-decoration: none;">37deb893</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-23T08:16:43-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use SrcSpan from the binder as initial source estimate
There are some situations where we end up with no source notes in useful
positions in an expression. In this case we currently fail to provide
any source information about where an expression came from.
This patch improves the initial estimate by using the position from the
top-binder as the guess for the location of the whole inner expression.
It provides quite a course estimate but it's better than nothing.
Ticket #20847
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/59b7f764489d3eb765e0b40e916b1438ff76e1fa" style="color: #1068bf; text-decoration: none;">59b7f764</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-02-23T08:17:24-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Don't emit foreign exports initialiser code for empty CAF list
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c7f32f768980b831d4969ec40fb7a4d19a51aff8" style="color: #1068bf; text-decoration: none;">c7f32f76</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-02-23T13:58:36-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Prepare rechecking logic for new type in a few ways
Combine `MustCompile and `NeedsCompile` into a single case.
`CompileReason` is put inside to destinguish the two. This makes a
number of things easier.
`Semigroup RecompileRequired` is no longer used, to make sure we skip
doing work where possible. `recompThen` is very similar, but helps
remember.
`checkList` is rewritten with `recompThen`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e60d8df813185cfe3fecdf66d6438611cf2ee4eb" style="color: #1068bf; text-decoration: none;">e60d8df8</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-02-23T13:58:36-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Introduce `MaybeValidated` type to remove invalid states
The old return type `(RecompRequired, Maybe _)`, was confusing
because it was inhabited by values like `(UpToDate, Nothing)` that made
no sense.
The new type ensures:
- you must provide a value if it is up to date.
- you must provide a reason if you don't provide a value.
it is used as the return value of:
- `checkOldIface`
- `checkByteCode`
- `checkObjects`
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f07b13e38a24d73db152f465922d0fcf903e0470" style="color: #1068bf; text-decoration: none;">f07b13e3</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-02-23T13:59:23-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>NCG: refactor X86 codegen
Preliminary work done to make working on #5444 easier.
Mostly make make control-flow easier to follow:
* renamed genCCall into genForeignCall
* split genForeignCall into the part dispatching on PrimTarget (genPrim) and
the one really generating code for a C call (cf ForeignTarget and genCCall)
* made genPrim/genSimplePrim only dispatch on MachOp: each MachOp now
has its own code generation function.
* out-of-line primops are not handled in a partial `outOfLineCmmOp`
anymore but in the code generation functions directly. Helper
functions have been introduced (e.g. genLibCCall) for code sharing.
* the latter two bullets make code generated for primops that are only
sometimes out-of-line (e.g. Pdep or Memcpy) and the logic to select
between inline/out-of-line much more localized
* avoided passing is32bit as an argument as we can easily get it from NatM
state when we really need it
* changed genCCall type to avoid it being partial (it can't handle
PrimTarget)
* globally removed 12 calls to `panic` thanks to better control flow and
types ("parse, don't validate" ftw!).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6fa7591e832d71ebea452ee6ddf97ac513404576" style="color: #1068bf; text-decoration: none;">6fa7591e</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-02-23T13:59:23-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>NCG: refactor the way registers are handled
* add getLocalRegReg to avoid allocating a CmmLocal just to call
getRegisterReg
* 64-bit registers: in the general case we must always use the virtual
higher part of the register, so we might as well always return it with
the lower part. The only exception is to implement 64-bit to 32-bit
conversions. We now have to explicitly discard the higher part when
matching on Reg64/RegCode64 datatypes instead of explicitly fetching
the higher part from the lower part: much safer default.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bc8de322d310d9dc879d3d3e7e0aa9157d8c2cf5" style="color: #1068bf; text-decoration: none;">bc8de322</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-02-23T13:59:23-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>NCG: inline some 64-bit primops on x86/32-bit (#5444)
Several 64-bit operation were implemented with FFI calls on 32-bit
architectures but we can easily implement them with inline assembly
code.
Also remove unused hs_int64ToWord64 and hs_word64ToInt64 C functions.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7b7c6b950054e2f928463c47feee0846587b6ae1" style="color: #1068bf; text-decoration: none;">7b7c6b95</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-23T14:00:00-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Simplify/correct implementation of getModuleInfo
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6215b04cc6d81ebaa86545e8b5701d1e54290325" style="color: #1068bf; text-decoration: none;">6215b04c</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-23T14:00:00-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove mg_boot field from ModuleGraph
It was unused in the compiler so I have removed it to streamline
ModuleGraph.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/818ff2ef76908499454ceed94329c133a1aad918" style="color: #1068bf; text-decoration: none;">818ff2ef</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-23T14:00:01-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>driver: Remove needsTemplateHaskellOrQQ from ModuleGraph
The idea of the needsTemplateHaskellOrQQ query is to check if any of the
modules in a module graph need Template Haskell then enable -dynamic-too
if necessary. This is quite imprecise though as it will enable
-dynamic-too for all modules in the module graph even if only one module
uses template haskell, with multiple home units, this is obviously even
worse.
With -fno-code we already have similar logic to enable code generation
just for the modules which are dependeded on my TemplateHaskell modules
so we use the same code path to decide whether to enable -dynamic-too
rather than using this big hammer.
This is part of the larger overall goal of moving as much statically
known configuration into the downsweep as possible in order to have
fully decided the build plan and all the options before starting to
build anything.
I also included a fix to #21095, a long standing bug with with the logic
which is supposed to enable the external interpreter if we don't have
the internal interpreter.
Fixes #20696 #21095
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b6670af6283be8b60f4c33eff896a2bf2c1b5ca6" style="color: #1068bf; text-decoration: none;">b6670af6</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-23T14:00:40-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Normalise output of ghci011 and T7627
The outputs of these tests vary on the order interface files are loaded
so we normalise the output to correct for these inconsequential
differences.
Fixes #21121
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9ed3bc6e1c09c558bba20e045e61582ba8fbadc7" style="color: #1068bf; text-decoration: none;">9ed3bc6e</a></strong>
<div>
<span>by Peter Trommler</span>
<i>at 2022-02-23T14:01:16-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Fix ipeMap test
Pointers to closures must be untagged before use.
Produce closures of different types so we get different info tables.
Fixes #21112
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7d426148c48d95c45ee3e5b050a4804700b08206" style="color: #1068bf; text-decoration: none;">7d426148</a></strong>
<div>
<span>by Ziyang Liu</span>
<i>at 2022-02-24T04:53:34-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Allow `return` in more cases in ApplicativeDo
The doc says that the last statement of an ado-block can be one of
`return E`, `return $ E`, `pure E` and `pure $ E`. But `return`
is not accepted in a few cases such as:
```haskell
-- The ado-block only has one statement
x :: F ()
x = do
return ()
-- The ado-block only has let-statements besides the `return`
y :: F ()
y = do
let a = True
return ()
```
These currently require `Monad` instances. This MR fixes it.
Normally `return` is accepted as the last statement because it is
stripped in constructing an `ApplicativeStmt`, but this cannot be
done in the above cases, so instead we replace `return` by `pure`.
A similar but different issue (when the ado-block contains `BindStmt`
or `BodyStmt`, the second last statement cannot be `LetStmt`, even if
the last statement uses `pure`) is fixed in !6786.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a5ea78673eae7c837a5ccb7882e908a4df92e75d" style="color: #1068bf; text-decoration: none;">a5ea7867</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-02-24T20:23:49-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Clarify laws of TestEquality
It is unclear what `TestEquality` is for. There are 3 possible choices.
Assuming
```haskell
data Tag a where
TagInt1 :: Tag Int
TagInt2 :: Tag Int
```
Weakest -- type param equality semi-decidable
---------------------------------------------
`Just Refl` merely means the type params are equal, the values being compared might not be.
`Nothing` means the type params may or may not be not equal.
```haskell
instance TestEquality Tag where
testEquality TagInt1 TagInt1 = Nothing -- oopsie is allowed
testEquality TagInt1 TagInt2 = Just Refl
testEquality TagInt2 TagInt1 = Just Refl
testEquality TagInt2 TagInt2 = Just Refl
```
This option is better demonstrated with a different type:
```haskell
data Tag' a where
TagInt1 :: Tag Int
TagInt2 :: Tag a
```
```haskell
instance TestEquality Tag' where
testEquality TagInt1 TagInt1 = Just Refl
testEquality TagInt1 TagInt2 = Nothing -- can't be sure
testEquality TagInt2 TagInt1 = Nothing -- can't be sure
testEquality TagInt2 TagInt2 = Nothing -- can't be sure
```
Weaker -- type param equality decidable
---------------------------------------
`Just Refl` merely means the type params are equal, the values being compared might not be.
`Nothing` means the type params are not equal.
```haskell
instance TestEquality Tag where
testEquality TagInt1 TagInt1 = Just Refl
testEquality TagInt1 TagInt2 = Just Refl
testEquality TagInt2 TagInt1 = Just Refl
testEquality TagInt2 TagInt2 = Just Refl
```
Strong -- Like `Eq`
-------------------
`Just Refl` means the type params are equal, and the values are equal according to `Eq`.
```haskell
instance TestEquality Tag where
testEquality TagInt1 TagInt1 = Just Refl
testEquality TagInt2 TagInt2 = Just Refl
testEquality _ _ = Nothing
```
Strongest -- unique value concrete type
---------------------------------------
`Just Refl` means the type params are equal, and the values are equal, and the class assume if the type params are equal the values must also be equal. In other words, the type is a singleton type when the type parameter is a closed term.
```haskell
-- instance TestEquality -- invalid instance because two variants for `Int`
```
------
The discussion in
https://github.com/haskell/core-libraries-committee/issues/21 has
decided on the "Weaker" option (confusingly formerly called the
"Weakest" option). So that is what is implemented.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/06c18990fb6f10aaf1907ba8f0fe3f1a138da159" style="color: #1068bf; text-decoration: none;">06c18990</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-02-24T20:24:25-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>TH: fix pretty printing of GADTs with multiple constuctors (#20842)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6555b68ca0678827b89c5624db071f5a485d18b7" style="color: #1068bf; text-decoration: none;">6555b68c</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-24T20:25:06-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Move linters into the tree
This MR moves the GHC linters into the tree, so that they can be run directly using Hadrian.
* Query all files tracked by Git instead of using changed files, so that we can run the exact same linting step locally and in a merge request.
* Only check that the changelogs don't contain TBA when RELEASE=YES.
* Add hadrian/lint script, which runs all the linting steps.
* Ensure the hlint job exits with a failure if hlint is not installed (otherwise we were ignoring the failure). Given that hlint doesn't seem to be available in CI at the moment, I've temporarily allowed failure in the hlint job.
* Run all linting tests in CI using hadrian.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b99646ed23ba75506005025e625edbc9a5cad41b" style="color: #1068bf; text-decoration: none;">b99646ed</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-24T20:25:06-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add rule for generating HsBaseConfig.h
If you are running the `lint:{base/compiler}` command locally then this
improves the responsiveness because we don't re-run configure everytime
if the header file already exists.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d0deaaf4241fa236bd8d87abde68a0ad41a7e119" style="color: #1068bf; text-decoration: none;">d0deaaf4</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-24T20:25:06-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Suggestions due to hlint
It turns out this job hasn't been running for quite a while (perhaps
ever) so there are quite a few failures when running the linter locally.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/70bafefbfc5fc31d5fad3184fc9bdc623871923b" style="color: #1068bf; text-decoration: none;">70bafefb</a></strong>
<div>
<span>by nineonine</span>
<i>at 2022-02-24T20:25:42-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ghci: show helpful error message when loading module with SIMD vector operations (#20214)
Previously, when trying to load module with SIMD vector operations, ghci would panic
in 'GHC.StgToByteCode.findPushSeq'. Now, a more helpful message is displayed.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8ed3d5fda3ad6ab9a1f4e50556850e605f000949" style="color: #1068bf; text-decoration: none;">8ed3d5fd</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-25T10:24:12+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove test-bootstrap and cabal-reinstall jobs from fast-ci [skip ci]
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8387dfbe6e468083c472ea019be8af79d489cbc8" style="color: #1068bf; text-decoration: none;">8387dfbe</a></strong>
<div>
<span>by Mario Blažević</span>
<i>at 2022-02-25T21:09:41-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>template-haskell: Fix two prettyprinter issues
Fix two issues regarding printing numeric literals.
Fixing #20454.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4ad8ce0b5c741862e2f94fd362077068b9b669d3" style="color: #1068bf; text-decoration: none;">4ad8ce0b</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-02-25T21:10:22-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>GHCi: don't normalise partially instantiated types
This patch skips performing type normalisation when we haven't
fully instantiated the type. That is, in tcRnExpr
(used only for :type in GHCi), skip normalisation if
the result type responds True to isSigmaTy.
Fixes #20974
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f35aca4d0612063155792587482a7905981c7070" style="color: #1068bf; text-decoration: none;">f35aca4d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-25T21:10:57-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/adjustor: Always place adjustor templates in data section
@nrnrnr points out that on his machine ld.lld rejects text relocations.
Generalize the Darwin text-relocation avoidance logic to account for
this.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cddb040ac178ee0a996ac83baef48710bf88e5b2" style="color: #1068bf; text-decoration: none;">cddb040a</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-02-25T21:11:33-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Ticky: Gate tag-inference dummy ticky-counters behind a flag.
Tag inference included a way to collect stats about avoided tag-checks.
This was dony by emitting "dummy" ticky entries with counts corresponding
to predicted/unpredicated tag checks.
This behaviour for ticky is now gated behind -fticky-tag-checks.
I also documented ticky-LNE in the process.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/948bf2d0ac28a367533523de59976c4b4b20db1c" style="color: #1068bf; text-decoration: none;">948bf2d0</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-25T21:12:09-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix comment reference to T4818
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9c3edeb8124d0276d7bb29ac3e13016f0d57c7a5" style="color: #1068bf; text-decoration: none;">9c3edeb8</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-02-25T21:12:09-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>simplCore: Correctly extend in-scope set in rule matching
Note [Matching lets] in GHC.Core.Rules claims the following:
> We use GHC.Core.Subst.substBind to freshen the binding, using an
> in-scope set that is the original in-scope variables plus the
> rs_bndrs (currently floated let-bindings).
However, previously the implementation didn't actually do extend the
in-scope set with rs_bndrs. This appears to be a regression which was
introduced by 4ff4d434e9a90623afce00b43e2a5a1ccbdb4c05.
Moreover, the originally reasoning was subtly wrong: we must rather use
the in-scope set from rv_lcl, extended with rs_bndrs, not that of
`rv_fltR`
Fixes #21122.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f9f49c3319ce0fbcbc728f3ff04b7cc1f74de24" style="color: #1068bf; text-decoration: none;">7f9f49c3</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-02-25T21:12:47-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Derive some stock instances for OverridingBool
This patch adds some derived instances to
`GHC.Data.Bool.OverridingBool`. It also changes the order of the
constructors, so that the derived `Ord` instance matches the
behaviour for `Maybe Bool`.
Fixes #20326
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/140438a81be65d068f555788c4da2ce32182530b" style="color: #1068bf; text-decoration: none;">140438a8</a></strong>
<div>
<span>by nineonine</span>
<i>at 2022-02-25T21:13:23-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add test for #19271
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ac9f460622b69bbd2fef3f08c0a876de226bc496" style="color: #1068bf; text-decoration: none;">ac9f4606</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-02-25T21:14:04-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Allow qualified names in COMPLETE pragmas
The parser didn't allow qualified constructor names to appear
in COMPLETE pragmas. This patch fixes that.
Fixes #20551
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/677c6c913a993a5298dcf19020641f24cede0239" style="color: #1068bf; text-decoration: none;">677c6c91</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-02-25T21:14:44-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Testsuite: remove arch conditional in T8832
Taken from !3658
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ad04953b0d28610c516ca897a0a9ee14577c3206" style="color: #1068bf; text-decoration: none;">ad04953b</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-02-25T21:15:23-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Allow hscGenHardCode to not return CgInfos
This is a minor change in preparation for the JS backend: CgInfos aren't
mandatory and the JS backend won't return them.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/929c280f991ee80ccf4fc1f451aa4c8a19113268" style="color: #1068bf; text-decoration: none;">929c280f</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-02-25T21:15:24-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Derive Enum instances for CCallConv and Safety
This is used by the JS backend for serialization.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/75e4e09040862dd12e6960d366868ca8ec434035" style="color: #1068bf; text-decoration: none;">75e4e090</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-02-25T21:15:59-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>base: Improve documentation of `throwIO` (#19854)
Now it takes a better account of precise vs. imprecise exception semantics.
Fixes #19854.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/61a203ba2e942b39c5f26a7ad01017841937fd0a" style="color: #1068bf; text-decoration: none;">61a203ba</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-26T02:06:51-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make typechecking unfoldings from interfaces lazier
The old logic was unecessarily strict in loading unfoldings because when
reading the unfolding we would case on the result of attempting to load
the template before commiting to which type of unfolding we were
producing. Hence trying to inspect any of the information about an
unfolding would force the template to be loaded.
This also removes a potentially hard to discover bug where if the
template failed to be typechecked for some reason then we would just not
return an unfolding. Instead we now panic so these bad situations which
should never arise can be identified.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2be7446089de644048466ab8e9c71c596fa82d09" style="color: #1068bf; text-decoration: none;">2be74460</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-26T02:06:51-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use a more up-to-date snapshot of the current rules in the simplifier
As the prescient (now deleted) note warns in simplifyPgmIO we have to be a bit careful
about when we gather rules from the EPS so that we get the rules for
imported bindings.
```
-- Get any new rules, and extend the rule base
-- See Note [Overall plumbing for rules] in GHC.Core.Rules
-- We need to do this regularly, because simplification can
-- poke on IdInfo thunks, which in turn brings in new rules
-- behind the scenes. Otherwise there's a danger we'll simply
-- miss the rules for Ids hidden inside imported inlinings
```
Given the previous commit, the loading of unfoldings is now even more
delayed so we need to be more careful to read the EPS rule base closer to the point
where we decide to try rules.
Without this fix GHC performance regressed by a noticeably amount
because the `zip` rule was not brought into scope eagerly enough which
led to a further series of unfortunate events in the simplifer which
tipped `substTyWithCoVars` over the edge of the size threshold, stopped
it being inlined and increased allocations by 10% in some cases.
Furthermore, this change is noticeably in the testsuite as it changes
T19790 so that the `length` rules from GHC.List fires earlier.
-------------------------
Metric Increase:
T9961
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b80461954e3c52a01d0c1cc7c4087959818dbd08" style="color: #1068bf; text-decoration: none;">b8046195</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-26T02:06:52-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve efficiency of extending a RuleEnv with a new RuleBase
Essentially we apply the identity:
> lookupNameEnv n (plusNameEnv_C (++) rb1 rb2)
> = lookupNameEnv n rb1 ++ lookupNameEnv n rb2
The latter being more efficient as we don't construct an intermediate
map.
This is now quite important as each time we try and apply rules we need
to combine the current EPS RuleBase with the HPT and ModGuts rule bases.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/033e9f0fcd0c1f9a2814b6922275514951c87dfd" style="color: #1068bf; text-decoration: none;">033e9f0f</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-02-26T02:07:30-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Error on anon wildcards in tcAnonWildCardOcc
The code in tcAnonWildCardOcc assumed that it could never encounter
anonymous wildcards in illegal positions, because the renamer would
have ruled them out. However, it's possible to sneak past the checks
in the renamer by using Template Haskell. It isn't possible to simply
pass on additional information when renaming Template Haskell
brackets, because we don't know in advance in what context the bracket
will be spliced in (see test case T15433b). So we accept that we might
encounter these bogus wildcards in the typechecker and throw the
appropriate error.
This patch also migrates the error messages for illegal wildcards in
types to use the diagnostic infrastructure.
Fixes #15433
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/32d8fe3a9a7f471e98d173eb83c02e61d9e12fbb" style="color: #1068bf; text-decoration: none;">32d8fe3a</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-02-26T14:15:33+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Core Lint: ensure primops can be eta-expanded
This patch adds a check to Core Lint, checkCanEtaExpand,
which ensures that primops and other wired-in functions with
no binding such as unsafeCoerce#, oneShot, rightSection...
can always be eta-expanded, by checking that the remaining
argument types have a fixed RuntimeRep.
Two subtleties came up:
- the notion of arity in Core looks through newtypes, so we may
need to unwrap newtypes in this check,
- we want to avoid calling hasNoBinding on something whose unfolding
we are in the process of linting, as this would cause a loop;
to avoid this we add some information to the Core Lint environment
that holds this information.
Fixes #20480
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0a80b43641c0b66ecdc6cf1d3ae08b002a0f270f" style="color: #1068bf; text-decoration: none;">0a80b436</a></strong>
<div>
<span>by Peter Trommler</span>
<i>at 2022-02-26T17:21:59-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Require LLVM for T15155l
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/38cb920e3c7bea7348a245c8602ea9562622f9cc" style="color: #1068bf; text-decoration: none;">38cb920e</a></strong>
<div>
<span>by Oleg Grenrus</span>
<i>at 2022-02-28T07:14:04-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add Monoid a => Monoid (STM a) instance
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d734ef8f78203b856dcfaf19eaebfed6ec623850" style="color: #1068bf; text-decoration: none;">d734ef8f</a></strong>
<div>
<span>by Hécate Moonlight</span>
<i>at 2022-02-28T07:14:42-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make modules in base stable.
fix #18963
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fbf005e973b18674494615bea59d42c54779a814" style="color: #1068bf; text-decoration: none;">fbf005e9</a></strong>
<div>
<span>by Sven Tennie</span>
<i>at 2022-02-28T19:16:01-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix some hlint issues in ghc-heap
This does not fix all hlint issues as the criticised index and
length expressions seem to be fine in context.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/adfddf7de3a9c1f757cbf027815a4b4f6ee86a7e" style="color: #1068bf; text-decoration: none;">adfddf7d</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-28T19:16:36-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Suggest to the user to run ./configure if missing a setting
If a setting is missing from the configuration file it's likely the user
needs to reconfigure.
Fixes #20476
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4f0208e53444d32c7f3795b3ac15acbfc75bf58c" style="color: #1068bf; text-decoration: none;">4f0208e5</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-02-28T19:17:12-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CLabel cleanup:
Remove these smart constructors for these reasons:
* mkLocalClosureTableLabel : Does the same as the non-local variant.
* mkLocalClosureLabel : Does the same as the non-local variant.
* mkLocalInfoTableLabel : Decide if we make a local label based on the name
and just use mkInfoTableLabel everywhere.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/065419affb4346bb81e91f8260e531a6e2342fa5" style="color: #1068bf; text-decoration: none;">065419af</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-02-28T19:17:47-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>linking: Don't pass --hash-size and --reduce-memory-overhead to ld
These flags were added to help with the high linking cost of the old
split-objs mode. Now we are using split-sections these flags appear to
make no difference to memory usage or time taken to link.
I tested various configurations linking together the ghc library with
-split-sections enabled.
| linker | time (s) |
| ------ | ------ |
| gold | 0.95 |
| ld | 1.6 |
| ld (hash-size = 31, reduce-memory-overheads) | 1.6 |
| ldd | 0.47 |
Fixes #20967
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3e65ef05cae9a0192b26fae184cb5037b013d4c5" style="color: #1068bf; text-decoration: none;">3e65ef05</a></strong>
<div>
<span>by Teo Camarasu</span>
<i>at 2022-02-28T19:18:27-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>template-haskell: fix typo in docstring for Overlap
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/80f9133e128abc61913d264ecd8b102517b266f5" style="color: #1068bf; text-decoration: none;">80f9133e</a></strong>
<div>
<span>by Teo Camarasu</span>
<i>at 2022-02-28T19:18:27-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>template-haskell: fix docstring for Bytes
It seems like a commented out section of code was accidentally included
in the docstring for a field.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/547742682702f08041e518d68d752ef6329843c3" style="color: #1068bf; text-decoration: none;">54774268</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-01T16:23:10-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix longstanding issue with moduleGraphNodes - no hs-boot files case
In the case when we tell moduleGraphNodes to drop hs-boot files the idea
is to collapse hs-boot files into their hs file nodes. In the old code
* nodeDependencies changed edges from IsBoot to NonBoot
* moduleGraphNodes just dropped boot file nodes
The net result is that any dependencies of the hs-boot files themselves
were dropped. The correct thing to do is
* nodeDependencies changes edges from IsBoot to NonBoot
* moduleGraphNodes merges dependencies of IsBoot and NonBoot nodes.
The result is a properly quotiented dependency graph which contains no
hs-boot files nor hs-boot file edges.
Why this didn't cause endless issues when compiling with boot files, we
will never know.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c84dc5065bcf5c87dd3d10421c99aa6941754f57" style="color: #1068bf; text-decoration: none;">c84dc506</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-01T16:23:10-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>driver: Properly add an edge between a .hs and its hs-boot file
As noted in #21071 we were missing adding this edge so there were
situations where the .hs file would get compiled before the .hs-boot
file which leads to issues with -j.
I fixed this properly by adding the edge in downsweep so the definition
of nodeDependencies can be simplified to avoid adding this dummy edge
in.
There are plenty of tests which seem to have these redundant boot files
anyway so no new test. #21094 tracks the more general issue of
identifying redundant hs-boot and SOURCE imports.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7aeb6d29313b23cd8d4da5d42cd9e740cca5c1df" style="color: #1068bf; text-decoration: none;">7aeb6d29</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-03-01T16:23:51-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Core Lint: collect args through floatable ticks
We were not looking through floatable ticks when collecting arguments in
Core Lint, which caused `checkCanEtaExpand` to fail on something like:
```haskell
reallyUnsafePtrEquality
= \ @a ->
(src<loc> reallyUnsafePtrEquality#)
@Lifted @a @Lifted @a
```
We fix this by using `collectArgsTicks tickishFloatable` instead of
`collectArgs`, to be consistent with the behaviour of eta expansion
outlined in Note [Eta expansion and source notes] in GHC.Core.Opt.Arity.
Fixes #21152.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/75caafaafca5a1941c276f95017c34f68da8d679" style="color: #1068bf; text-decoration: none;">75caafaa</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-02T01:14:59-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Ticky profiling improvements.
This adds a number of changes to ticky-ticky profiling.
When an executable is profiled with IPE profiling it's now possible to
associate id-related ticky counters to their source location.
This works by emitting the info table address as part of the counter
which can be looked up in the IPE table.
Add a `-ticky-ap-thunk` flag. This flag prevents the use of some standard thunks
which are precompiled into the RTS. This means reduced cache locality
and increased code size. But it allows better attribution of execution
cost to specific source locations instead of simple attributing it to
the standard thunk.
ticky-ticky now uses the `arg` field to emit additional information
about counters in json format. When ticky-ticky is used in combination
with the eventlog eventlog2html can be used to generate a html table
from the eventlog similar to the old text output for ticky-ticky.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/aeea6bd588060108dea88996c19f48b9e50adad2" style="color: #1068bf; text-decoration: none;">aeea6bd5</a></strong>
<div>
<span>by doyougnu</span>
<i>at 2022-03-02T01:15:39-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>StgToCmm.cgTopBinding: no isNCG, use binBlobThresh
This is a one line change. It is a fixup from MR!7325, was pointed out
in review of MR!7442, specifically: https://gitlab.haskell.org/ghc/ghc/-/merge_requests/7442#note_406581
The change removes isNCG check from cgTopBinding. Instead it changes the
type of binBlobThresh in DynFlags from Word to Maybe Word, where a Just
0 or a Nothing indicates an infinite threshold and thus the disable
CmmFileEmbed case in the original check.
This improves the cohesion of the module because more NCG related
Backend stuff is moved into, and checked in, StgToCmm.Config. Note, that
the meaning of a Just 0 or a Nothing in binBlobThresh is indicated in a
comment next to its field in GHC.StgToCmm.Config.
DynFlags: binBlobThresh: Word -> Maybe Word
StgToCmm.Config: binBlobThesh add not ncg check
DynFlags.binBlob: move Just 0 check to dflags init
StgToCmm.binBlob: only check isNCG, Just 0 check to dflags
StgToCmm.Config: strictify binBlobThresh
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b27b2af3fab48e21aabcc9441967c4dd7a6a75ea" style="color: #1068bf; text-decoration: none;">b27b2af3</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-03-02T14:08:36-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Introduce ConcreteTv metavariables
This patch introduces a new kind of metavariable, by adding the
constructor `ConcreteTv` to `MetaInfo`. A metavariable with
`ConcreteTv` `MetaInfo`, henceforth a concrete metavariable, can only
be unified with a type that is concrete (that is, a type that answers
`True` to `GHC.Core.Type.isConcrete`).
This solves the problem of dangling metavariables in `Concrete#`
constraints: instead of emitting `Concrete# ty`, which contains a
secret existential metavariable, we simply emit a primitive equality
constraint `ty ~# concrete_tv` where `concrete_tv` is a fresh concrete
metavariable.
This means we can avoid all the complexity of canonicalising
`Concrete#` constraints, as we can just re-use the existing machinery
for `~#`.
To finish things up, this patch then removes the `Concrete#` special
predicate, and instead introduces the special predicate `IsRefl#`
which enforces that a coercion is reflexive.
Such a constraint is needed because the canonicaliser is quite happy
to rewrite an equality constraint such as `ty ~# concrete_tv`, but
such a rewriting is not handled by the rest of the compiler currently,
as we need to make use of the resulting coercion, as outlined in the
FixedRuntimeRep plan.
The big upside of this approach (on top of simplifying the code)
is that we can now selectively implement PHASE 2 of FixedRuntimeRep,
by changing individual calls of `hasFixedRuntimeRep_MustBeRefl` to
`hasFixedRuntimeRep` and making use of the obtained coercion.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/81b7c4361c0e3da403e0fcf42cc7faae2ca3db9a" style="color: #1068bf; text-decoration: none;">81b7c436</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-02T14:09:13-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make -dannot-lint not panic on let bound type variables
After certain simplifier passes we end up with let bound type variables
which are immediately inlined in the next pass. The core diff utility
implemented by -dannot-lint failed to take these into account and
paniced.
Progress towards #20965
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f596c91aaede75f7293ac2214ad48018a6b7a753" style="color: #1068bf; text-decoration: none;">f596c91a</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-03-02T14:09:51-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve out-of-order inferred type variables
Don't instantiate type variables for :type in
`GHC.Tc.Gen.App.tcInstFun`, to avoid inconsistently instantianting
`r1` but not `r2` in the type
forall {r1} (a :: TYPE r1) {r2} (b :: TYPE r2). ...
This fixes #21088.
This patch also changes the primop pretty-printer to ensure
that we put all the inferred type variables first. For example,
the type of reallyUnsafePtrEquality# is now
forall {l :: Levity} {k :: Levity}
(a :: TYPE (BoxedRep l))
(b :: TYPE (BoxedRep k)).
a -> b -> Int#
This means we avoid running into issue #21088 entirely with
the types of primops. Users can still write a type signature where
the inferred type variables don't come first, however.
This change to primops had a knock-on consequence, revealing that
we were sometimes performing eta reduction on keepAlive#.
This patch updates tryEtaReduce to avoid eta reducing functions
with no binding, bringing it in line with tryEtaReducePrep,
and thus fixing #21090.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1617fed3a97cd13b55a180029ab8fb9468d2b797" style="color: #1068bf; text-decoration: none;">1617fed3</a></strong>
<div>
<span>by Richard Eisenberg</span>
<i>at 2022-03-02T14:10:28-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make inert_cycle_breakers into a stack.
Close #20231.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c8652a0afc3d8b56d39f39ff587271dcc46b17ba" style="color: #1068bf; text-decoration: none;">c8652a0a</a></strong>
<div>
<span>by Richard Eisenberg</span>
<i>at 2022-03-02T14:11:03-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make Constraint not *apart* from Type.
More details in Note [coreView vs tcView]
Close #21092.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/91a10cb06aa9ace905adeff3cc795de9c40f64a9" style="color: #1068bf; text-decoration: none;">91a10cb0</a></strong>
<div>
<span>by doyougnu</span>
<i>at 2022-03-02T14:11:43-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>GenStgAlt 3-tuple synonym --> Record type
This commit alters GenStgAlt from a type synonym to a Record with field
accessors. In pursuit of #21078, this is not a required change but cleans
up several areas for nicer code in the upcoming js-backend, and in GHC
itself.
GenStgAlt: 3-tuple -> record
Stg.Utils: GenStgAlt 3-tuple -> record
Stg.Stats: StgAlt 3-tuple --> record
Stg.InferTags.Rewrite: StgAlt 3-tuple -> record
Stg.FVs: GenStgAlt 3-tuple -> record
Stg.CSE: GenStgAlt 3-tuple -> record
Stg.InferTags: GenStgAlt 3-tuple --> record
Stg.Debug: GenStgAlt 3-tuple --> record
Stg.Lift.Analysis: GenStgAlt 3-tuple --> record
Stg.Lift: GenStgAlt 3-tuple --> record
ByteCode.Instr: GenStgAlt 3-tuple --> record
Stg.Syntax: add GenStgAlt helper functions
Stg.Unarise: GenStgAlt 3-tuple --> record
Stg.BcPrep: GenStgAlt 3-tuple --> record
CoreToStg: GenStgAlt 3-tuple --> record
StgToCmm.Expr: GenStgAlt 3-tuple --> record
StgToCmm.Bind: GenStgAlt 3-tuple --> record
StgToByteCode: GenStgAlt 3-tuple --> record
Stg.Lint: GenStgAlt 3-tuple --> record
Stg.Syntax: strictify GenStgAlt
GenStgAlt: add haddock, some cleanup
fixup: remove calls to pure, single ViewPattern
StgToByteCode: use case over viewpatterns
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/73864f006fa87fe16d4ede6363bf302d3b6cb202" style="color: #1068bf; text-decoration: none;">73864f00</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-02T14:12:19-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>base: Remove default method from bitraversable
The default instance leads to an infinite loop.
bisequenceA is defined in terms of bisquence which is defined in terms
of bitraverse.
```
bitraverse f g
= (defn of bitraverse)
bisequenceA . bimap f g
= (defn of bisequenceA)
bitraverse id id . bimap f g
= (defn of bitraverse)
...
```
Any instances defined without an explicitly implementation are currently
broken, therefore removing it will alert users to an issue in their
code.
CLC issue: https://github.com/haskell/core-libraries-committee/issues/47
Fixes #20329 #18901
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9579bf357cabca4dd311a88eb16f2325a438fadc" style="color: #1068bf; text-decoration: none;">9579bf35</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-02T14:12:54-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Add check to CI to ensure compiler uses correct BIGNUM_BACKEND
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c48a7c3a6165d8ffa9ff052db908083817cf6021" style="color: #1068bf; text-decoration: none;">c48a7c3a</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-03-03T07:37:12-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use Word64# primops in Word64 Num instance
Taken froù!3658
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ce65d0cceda4a028f30deafa3c39d40a250acc6a" style="color: #1068bf; text-decoration: none;">ce65d0cc</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-03T07:37:48-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Correctly set whether we have a debug compiler when running tests
For example, running the `slow-validate` flavour would incorrectly run
the T16135 test which would fail with an assertion error, despite the
fact that is should be skipped when we have a debug compiler.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e0c3e757becc9bcc1852c1e14fa7d65c7d2b7b00" style="color: #1068bf; text-decoration: none;">e0c3e757</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-03T13:48:41-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>docs: Add note to unsafeCoerce function that you might want to use coerce [skip ci]
Fixes #15429
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/559d4cf3b30a926255902fd0e845090d4160fa4c" style="color: #1068bf; text-decoration: none;">559d4cf3</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-03T13:49:17-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>docs: Add note to RULES documentation about locally bound variables [skip ci]
Fixes #20100
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c534b3dd30de8d5a59ff64628a6a0b3eb938a102" style="color: #1068bf; text-decoration: none;">c534b3dd</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-03T13:49:53-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Replace ad-hoc CPP with constant from GHC.Utils.Constant
Fixes #21154
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/de56cc7ecf93c7439a6acf76892c08124fe3c64b" style="color: #1068bf; text-decoration: none;">de56cc7e</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-03-04T12:44:26-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update documentation of LiberalTypeSynonyms
We no longer require LiberalTypeSynonyms to use 'forall' or an unboxed
tuple in a synonym.
I also removed that kind checking before expanding synonyms "could be changed".
This was true when type synonyms were thought of macros, but with
the extensions such as SAKS or matchability I don't see it changing.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c0a392599af6f704de8cc2cd107f7b7600ec7990" style="color: #1068bf; text-decoration: none;">c0a39259</a></strong>
<div>
<span>by Simon Jakobi</span>
<i>at 2022-03-04T12:45:01-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>base: Mark GHC.Bits not-home for haddock
Most (all) of the exports are re-exported from
the preferable Data.Bits.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3570eda512d157a38da391b6f1d57dfbab72dd09" style="color: #1068bf; text-decoration: none;">3570eda5</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-03-04T12:45:42-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix comments about Int64/Word64 primops
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6f84ee332fd243e83004bdbc92a6970e96ab3189" style="color: #1068bf; text-decoration: none;">6f84ee33</a></strong>
<div>
<span>by Artem Pelenitsyn</span>
<i>at 2022-03-05T01:06:47-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>remove MonadFail instances of ST
CLC proposal: https://github.com/haskell/core-libraries-committee/issues/33
The instances had `fail` implemented in terms of `error`, whereas the
idea of the `MonadFail` class is that the `fail` method should be
implemented in terms of the monad itself.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/584cd5ae200866fbfb480fab9591f0acf94a8033" style="color: #1068bf; text-decoration: none;">584cd5ae</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-03-05T01:07:25-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Don't allow Float#/Double# literal patterns
This patch does the following two things:
1. Fix the check in Core Lint to properly throw an error when it
comes across Float#/Double# literal patterns. The check
was incorrect before, because it expected the type to be
Float/Double instead of Float#/Double#.
2. Add an error in the parser when the user writes a floating-point
literal pattern such as `case x of { 2.0## -> ... }`.
Fixes #21115
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/706deee0524ca6af26c8b8d5cff17a6e401a2c18" style="color: #1068bf; text-decoration: none;">706deee0</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2022-03-05T17:44:10-08:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make T20214 terminate promptly be setting input to /dev/null
It was hanging and timing out on OpenBSD before.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/14e900989ce1e2de733fbbcebe853ae363703e3a" style="color: #1068bf; text-decoration: none;">14e90098</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-03-07T14:05:41-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Always generalise top-level bindings
Fix #21023 by always generalising top-level binding; change
the documentation of -XMonoLocalBinds to match.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c9c31c3cf6fbba4c469d493b94634b180146024a" style="color: #1068bf; text-decoration: none;">c9c31c3c</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-07T14:06:16-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Add little flavour transformer to build stage2 with assertions
This can be useful to build a `perf+assertions` build or even better
`default+no_profiled_libs+omit_pragmas+assertions`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/89c14a6ca76d244fe975bc4d9d7378d25b805d74" style="color: #1068bf; text-decoration: none;">89c14a6c</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-07T14:06:16-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Convert all deb10 make jobs into hadrian jobs
This is the first step in converting all the CI configs to use hadrian
rather than make. (#21129)
The metrics increase due to hadrian using --hyperlinked-source for
haddock builds. (See #21156)
-------------------------
Metric Increase:
haddock.Cabal
haddock.base
haddock.compiler
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7bfae2ee0e9548f489c52c0e3f4688a9ae83b12b" style="color: #1068bf; text-decoration: none;">7bfae2ee</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-07T14:06:16-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Replace use of BIN_DIST_PREP_TAR_COMP with BIN_DIST_NAME
And adds a check to make sure we are not accidently settings
BIN_DIST_PREP_TAR_COMP when using hadrian.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5b35ca58d94d07751ef2f810686f588ce9c0878a" style="color: #1068bf; text-decoration: none;">5b35ca58</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-07T14:06:16-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix gen_contents_index logic for hadrian bindist
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/273bc133a2f4d43be63dcfcf645e697d6fae8178" style="color: #1068bf; text-decoration: none;">273bc133</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-03-07T14:06:52-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix reporting constraints in pprTcSolverReportMsg
'no_instance_msg' and 'no_deduce_msg' were omitting the first wanted.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5874a30af459892454cf696f5e6ca913b7f400cc" style="color: #1068bf; text-decoration: none;">5874a30a</a></strong>
<div>
<span>by Simon Jakobi</span>
<i>at 2022-03-07T14:07:28-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve setBit for Natural
Previously the default definition was used, which involved allocating
intermediate Natural values.
Fixes #21173.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7a02aeb8785d5741f36287c89ffba7b50d29e853" style="color: #1068bf; text-decoration: none;">7a02aeb8</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-07T14:08:03-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove leftover trace in testsuite
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6ce6c2504c33eb0faa9c160dc1773735d858504c" style="color: #1068bf; text-decoration: none;">6ce6c250</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-03-07T23:48:56-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Expand and improve the Note [Strict Worker Ids].
I've added an explicit mention of the invariants surrounding those. As well as adding
more direct cross references to the Strict Field Invariant.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d0f892fe08a869f5bb924741b828bb7efdfcd801" style="color: #1068bf; text-decoration: none;">d0f892fe</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2022-03-07T23:49:32-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Delete GenericKind_ in favor of GenericKind_DC
When deriving a `Generic1` instance, we need to know what the last type
variable of a data type is. Previously, there were two mechanisms to determine
this information:
* `GenericKind_`, where `Gen1_` stored the last type variable of a data type
constructor (i.e., the `tyConTyVars`).
* `GenericKind_DC`, where `Gen1_DC` stored the last universally quantified
type variable in a data constructor (i.e., the `dataConUnivTyVars`).
These had different use cases, as `GenericKind_` was used for generating
`Rep(1)` instances, while `GenericKind_DC` was used for generating `from(1)`
and `to(1)` implementations. This was already a bit confusing, but things went
from confusing to outright wrong after !6976. This is because after !6976,
the `deriving` machinery stopped using `tyConTyVars` in favor of
`dataConUnivTyVars`. Well, everywhere with the sole exception of
`GenericKind_`, which still continued to use `tyConTyVars`. This lead to
disaster when deriving a `Generic1` instance for a GADT family instance, as
the `tyConTyVars` do not match the `dataConUnivTyVars`. (See #21185.)
The fix is to stop using `GenericKind_` and replace it with `GenericKind_DC`.
For the most part, this proves relatively straightforward. Some highlights:
* The `forgetArgVar` function was deleted entirely, as it no longer proved
necessary after `GenericKind_`'s demise.
* The substitution that maps from the last type variable to `Any` (see
`Note [Generating a correctly typed Rep instance]`) had to be moved from
`tc_mkRepTy` to `tc_mkRepFamInsts`, as `tc_mkRepTy` no longer has access to
the last type variable.
Fixes #21185.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a60ddffd75b9ff07b948ea8cdc71f677a4f8d167" style="color: #1068bf; text-decoration: none;">a60ddffd</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-08T22:51:37+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Move bootstrap and cabal-reinstall test jobs to nightly
CI is creaking under the pressure of too many jobs so attempt to reduce
the strain by removing a couple of jobs.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7abe32889101f60c2779092eea75494d83254916" style="color: #1068bf; text-decoration: none;">7abe3288</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-09T10:24:15+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add 10 minute timeout to linters job
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3cf75ede057148cc8e38692ff32013f7d3e4078f" style="color: #1068bf; text-decoration: none;">3cf75ede</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-09T10:24:16+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Revert "hadrian: Correctly set whether we have a debug compiler when running tests"
Needing the arguments for "GHC/Utils/Constant.hs" implies a dependency
on the previous stage compiler. Whilst we work out how to get around
this I will just revert this commit (as it only affects running the
testsuite in debug way).
This reverts commit ce65d0cceda4a028f30deafa3c39d40a250acc6a.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/18b9ba5602121c75f184f29e5b3e70bd7d4779c4" style="color: #1068bf; text-decoration: none;">18b9ba56</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-09T11:07:23+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Fix save_cache function
Each interation of saving the cache would copy the whole `cabal` store
into a subfolder in the CACHE_DIR rather than copying the contents of
the cabal store into the cache dir. This resulted in a cache which
looked like:
```
/builds/ghc/ghc/cabal-cache/cabal/cabal/cabal/cabal/cabal/cabal/cabal/cabal/cabal/cabal/
```
So it would get one layer deeper every CI run and take longer and longer
to compress.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bc684dfb97b9d1bb81d0b4a96f92226bf9748ea0" style="color: #1068bf; text-decoration: none;">bc684dfb</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-03-10T03:20:07-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>mr-template: Mention timeframe for review</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f5f4edee074c6c26d34e1bf7a725a9de5e3e872" style="color: #1068bf; text-decoration: none;">7f5f4ede</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2022-03-10T03:20:43-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump submodules: containers, exceptions
GHC Proposal #371 requires TypeOperators to use type equality a~b.
This submodule update pulls in the appropriate forward-compatibility
changes in 'libraries/containers' and 'libraries/exceptions'
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8532b8a9d19effb5186fbe2101008655dfaa01f2" style="color: #1068bf; text-decoration: none;">8532b8a9</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-10T03:20:43-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add an inline pragma to lookupVarEnv
The containers bump reduced the size of the Data.IntMap.Internal.lookup
function so that it no longer experienced W/W. This means that the size
of lookupVarEnv increased over the inlining threshold and it wasn't
inlined into the hot code path in substTyVar.
See containers#821, #21159 and !7638 for some more explanation.
-------------------------
Metric Decrease:
LargeRecord
T12227
T13386
T15703
T18223
T5030
T8095
T9872a
T9872b
T9872c
TcPlugin_RewritePerf
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/844cf1e14fe031c9ed7597b00a1183ad9b1ccc0a" style="color: #1068bf; text-decoration: none;">844cf1e1</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-10T03:20:43-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Normalise output of T10970 test
The output of this test changes each time the containers submodule
version updates. It's easier to apply the version normaliser so that
the test checks that there is a version number, but not which one it is.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/24b6af26e2e03c93e274ba15c6ead897d884fdd4" style="color: #1068bf; text-decoration: none;">24b6af26</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2022-03-11T19:56:28-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Refactor tcDeriving to generate tyfam insts before any bindings
Previously, there was an awful hack in `genInst` (now called `genInstBinds`
after this patch) where we had to return a continutation rather than directly
returning the bindings for a derived instance. This was done for staging
purposes, as we had to first infer the instance contexts for derived instances
and then feed these contexts into the continuations to ensure the generated
instance bindings had accurate instance contexts.
`Note [Staging of tcDeriving]` in `GHC.Tc.Deriving` described this confusing
state of affairs.
The root cause of this confusing design was the fact that `genInst` was trying
to generate instance bindings and associated type family instances for derived
instances simultaneously. This really isn't possible, however: as
`Note [Staging of tcDeriving]` explains, one needs to have access to the
associated type family instances before one can properly infer the instance
contexts for derived instances. The use of continuation-returning style was an
attempt to circumvent this dependency, but it did so in an awkward way.
This patch detangles this awkwardness by splitting up `genInst` into two
functions: `genFamInsts` (for associated type family instances) and
`genInstBinds` (for instance bindings). Now, the `tcDeriving` function calls
`genFamInsts` and brings all the family instances into scope before calling
`genInstBinds`. This removes the need for the awkward continuation-returning
style seen in the previous version of `genInst`, making the code easier to
understand.
There are some knock-on changes as well:
1. `hasStockDeriving` now needs to return two separate functions: one that
describes how to generate family instances for a stock-derived instance,
and another that describes how to generate the instance bindings. I factored
out this pattern into a new `StockGenFns` data type.
2. While documenting `StockGenFns`, I realized that there was some
inconsistency regarding which `StockGenFns` functions needed which
arguments. In particular, the function in `GHC.Tc.Deriv.Generics` which
generates `Rep(1)` instances did not take a `SrcSpan` like other `gen_*`
functions did, and it included an extra `[Type]` argument that was entirely
redundant. As a consequence, I refactored the code in
`GHC.Tc.Deriv.Generics` to more closely resemble other `gen_*` functions.
A happy result of all this is that all `StockGenFns` functions now take
exactly the same arguments, which makes everything more uniform.
This is purely a refactoring that should not have any effect on user-observable
behavior. The new design paves the way for an eventual fix for #20719.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/62caaa9b381b07208c8a2fae20fb7fee9e951004" style="color: #1068bf; text-decoration: none;">62caaa9b</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-03-11T19:57:03-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Use the linters image in hlint job
As the `hlint` executable is only available in the linters image.
Fixes #21146.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4abd7eb03f9bc05f0f53126d2d37d81d3070f15d" style="color: #1068bf; text-decoration: none;">4abd7eb0</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-11T19:57:38-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove partOfGhci check in the loader
This special logic has been part of GHC ever since template haskell was
introduced in 9af77fa423926fbda946b31e174173d0ec5ebac8.
It's hard to believe in any case that this special logic pays its way at
all. Given
* The list is out-of-date, which has potential to lead to miscompilation
when using "editline", which was removed in 2010 (46aed8a4).
* The performance benefit seems negligable as each load only happens
once anyway and packages specified by package flags are preloaded into
the linker state at the start of compilation.
Therefore we just remove this logic.
Fixes #19791
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c40cbaa22973faf38599625351f9e2dd8dac3691" style="color: #1068bf; text-decoration: none;">c40cbaa2</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-03-11T19:58:14-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve -dtag-inference-checks checks.
FUN closures don't get tagged when evaluated. So no point in checking their
tags.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ab00d23b44f65c2443ade996a322730615870428" style="color: #1068bf; text-decoration: none;">ab00d23b</a></strong>
<div>
<span>by Simon Jakobi</span>
<i>at 2022-03-11T19:58:49-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve clearBit and complementBit for Natural
Also optimize bigNatComplementBit#.
Fixes #21175, #21181, #21194.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a6d8facbbd0cb87374e2afd8a0b908e5cbec399d" style="color: #1068bf; text-decoration: none;">a6d8facb</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-03-11T19:59:24-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitignore all (build) directories headed by _
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/524795feabf3a977d074f40b482ed7d8893f8710" style="color: #1068bf; text-decoration: none;">524795fe</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-03-11T19:59:24-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Demand: Document why we need three additional equations of multSubDmd
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6bdcd5573a1fe67dd872c55e5911a1186071c5d3" style="color: #1068bf; text-decoration: none;">6bdcd557</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-03-11T20:00:01-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CmmToC: make 64-bit word splitting for 32-bit targets respect target endianness
This used to been broken for little-endian targets.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9e67c69e8421f1223a1d14a764740095adeaf89b" style="color: #1068bf; text-decoration: none;">9e67c69e</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-03-11T20:00:01-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CmmToC: fix Double# literal payload for 32-bit targets
Contrary to the legacy comment, the splitting didn't happen and we
ended up with a single StgWord64 literal in the output code! Let's
just do the splitting here.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1eee2e28ff51db0b8c2393d68f716c6c7941e779" style="color: #1068bf; text-decoration: none;">1eee2e28</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-03-11T20:00:01-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CmmToC: use __builtin versions of memcpyish functions to fix type mismatch
Our memcpyish primop's type signatures doesn't match the C type
signatures. It's not a problem for typical archs, since their C ABI
permits dropping the result, but it doesn't work for wasm. The
previous logic would cast the memcpyish function pointer to an
incorrect type and perform an indirect call, which results in a
runtime trap on wasm.
The most straightforward fix is: don't emit EFF_ for memcpyish
functions. Since we don't want to include extra headers in .hc to
bring in their prototypes, we can just use the __builtin versions.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9d8d48378840b856eee47a4ad245537829ce5e5a" style="color: #1068bf; text-decoration: none;">9d8d4837</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-03-11T20:00:01-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CmmToC: emit __builtin_unreachable() when CmmSwitch doesn't contain fallback case
Otherwise the C compiler may complain "warning: non-void function does
not return a value in all control paths [-Wreturn-type]".
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/27da55407121461695a831aac7cb0ce4845260da" style="color: #1068bf; text-decoration: none;">27da5540</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-03-11T20:00:01-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CmmToC: make floatToWord32/doubleToWord64 faster
Use castFloatToWord32/castDoubleToWord64 in base to perform the
reinterpret cast.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c98e8332e4a4d806ec53a69b57f38a15e9fab9d4" style="color: #1068bf; text-decoration: none;">c98e8332</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-03-11T20:00:01-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CmmToC: fix -Wunused-value warning in ASSIGN_BaseReg
When ASSIGN_BaseReg is a no-op, we shouldn't generate any C code,
otherwise C compiler complains a bunch of -Wunused-value warnings when
doing unregisterised codegen.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5932247cda7a782a3d1325b9715095a7d25e8571" style="color: #1068bf; text-decoration: none;">5932247c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-03-11T20:00:36-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>users guide: Eliminate spurious \spxentry mentions
We were failing to pass the style file to `makeindex`, as is done by
the mklatex configuration generated by Sphinx.
Fixes #20913.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e40cf4ef6cab8e02fcd34efdf98f1715bfa7315c" style="color: #1068bf; text-decoration: none;">e40cf4ef</a></strong>
<div>
<span>by Simon Jakobi</span>
<i>at 2022-03-11T20:01:11-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ghc-bignum: Tweak integerOr
The result of ORing two BigNats is always greater or equal to the
larger of the two. Therefore it is safe to skip the magnitude checks of
integerFromBigNat#.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cf081476eb60ba8d65335234b654b457154b9d83" style="color: #1068bf; text-decoration: none;">cf081476</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2022-03-12T07:02:40-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>checkUnboxedLitPat: use non-fatal addError
This enables GHC to report more parse errors in a single pass.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7fe0714326080540945fb780cdf65e90e4b49d2f" style="color: #1068bf; text-decoration: none;">7fe07143</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-03-12T07:03:16-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Rename -fprof-late-ccs to -fprof-late
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/88a945410fe613d41fa3778b71fc187c6ec90155" style="color: #1068bf; text-decoration: none;">88a94541</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-03-12T07:03:56-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Hadrian: avoid useless allocations in trackArgument
Cf ticky report before the change:
Entries Alloc Alloc'd Non-void Arguments STG Name
--------------------------------------------------------------------------------
696987 29044128 0 1 L main:Target.trackArgument_go5{v r24kY} (fun)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2509d676a77507833fe86d11ec4f41f463faffe4" style="color: #1068bf; text-decoration: none;">2509d676</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-03-12T07:04:36-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Hadrian: avoid allocating in stageString (#19209)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c062fac0023dd9a6077a0067b61ce39e32617eec" style="color: #1068bf; text-decoration: none;">c062fac0</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-03-12T07:04:36-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Hadrian: remove useless imports
Added for no reason in 7ce1b694f7be7fbf6e2d7b7eb0639e61fbe358c6
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c82fb93476b9c32698f8c069e631d94fd6458666" style="color: #1068bf; text-decoration: none;">c82fb934</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-03-12T07:05:16-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Hadrian: avoid allocations in WayUnit's Read instance (#19209)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ed04aed2b2d87d605c1cd13161bd3511e43c9452" style="color: #1068bf; text-decoration: none;">ed04aed2</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-03-12T07:05:16-05:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Hadrian: use IntSet Binary instance for Way (#19209)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ad83553153278947f439951d79a842527f2f0983" style="color: #1068bf; text-decoration: none;">ad835531</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-03-13T18:12:12-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix bug in weak loop-breakers in OccurAnal
Note [Weak loop breakers] explains why we need to track variables free
in RHS of rules. But we need to do this for /inactive/ rules as well
as active ones, unlike the rhs_fv_env stuff.
So we now have two fields in node Details, one for free vars of
active rules, and one for free vars of all rules.
This was shown up by #20820, which is now fixed.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/76b94b726f6e21bb2a46ae04e4a1be2cba45a3dc" style="color: #1068bf; text-decoration: none;">76b94b72</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-03-13T18:12:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Worker/wrapper: Preserve float barriers (#21150)
Issue #21150 shows that worker/wrapper allocated a worker function for a
function with multiple calls that said "called at most once" when the first
argument was absent. That's bad!
This patch makes it so that WW preserves at least one non-one-shot value lambda
(see `Note [Preserving float barriers]`) by passing around `void#` in place of
absent arguments.
Fixes #21150.
Since the fix is pretty similar to `Note [Protecting the last value argument]`,
I put the logic in `mkWorkerArgs`. There I realised (#21204) that
`-ffun-to-thunk` is basically useless with `-ffull-laziness`, so I deprecated
the flag, simplified and split into `needsVoidWorkerArg`/`addVoidWorkerArg`.
SpecConstr is another client of that API.
Fixes #21204.
Metric Decrease:
T14683
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/97db789eec7a49c3ec30a83666720221c26d8f9e" style="color: #1068bf; text-decoration: none;">97db789e</a></strong>
<div>
<span>by romes</span>
<i>at 2022-03-14T11:36:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix up Note [Bind free vars]
Move GHC-specific comments from Language.Haskell.Syntax.Binds to
GHC.Hs.Binds
It looks like the Note was deleted but there were actually two copies of
it. L.H.S.B no longer references it, and GHC.Hs.Binds keeps an updated
copy. (See #19252)
There are other duplicated notes -- they will be fixed in the next
commit
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/135888ddc6adc99126b84194a5da3d8736324132" style="color: #1068bf; text-decoration: none;">135888dd</a></strong>
<div>
<span>by romes</span>
<i>at 2022-03-14T11:36:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>TTG Pull AbsBinds and ABExport out of the main AST
AbsBinds and ABExport both depended on the typechecker, and were thus
removed from the main AST Expr.
CollectPass now has a new function `collectXXHsBindsLR` used for the new
HsBinds extension point
Bumped haddock submodule to work with AST changes.
The removed Notes from Language.Haskell.Syntax.Binds were duplicated
(and not referenced) and the copies in GHC.Hs.Binds are kept (and
referenced there). (See #19252)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/106413f094d01485503a9b84fa4545d938ea934d" style="color: #1068bf; text-decoration: none;">106413f0</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-03-14T11:37:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add two coercion optimisation perf tests
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8eadea670adb5de49ddba7e23d04ec8242ba76a3" style="color: #1068bf; text-decoration: none;">8eadea67</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-03-14T15:08:24-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix isLiftedType_maybe and handle fallout
As #20837 pointed out, `isLiftedType_maybe` returned `Just False` in
many situations where it should return `Nothing`, because it didn't
take into account type families or type variables.
In this patch, we fix this issue. We rename `isLiftedType_maybe` to
`typeLevity_maybe`, which now returns a `Levity` instead of a boolean.
We now return `Nothing` for types with kinds of the form
`TYPE (F a1 ... an)` for a type family `F`, as well as
`TYPE (BoxedRep l)` where `l` is a type variable.
This fix caused several other problems, as other parts of the compiler
were relying on `isLiftedType_maybe` returning a `Just` value, and were
now panicking after the above fix. There were two main situations in
which panics occurred:
1. Issues involving the let/app invariant. To uphold that invariant,
we need to know whether something is lifted or not. If we get an
answer of `Nothing` from `isLiftedType_maybe`, then we don't know
what to do. As this invariant isn't particularly invariant, we
can change the affected functions to not panic, e.g. by behaving
the same in the `Just False` case and in the `Nothing` case
(meaning: no observable change in behaviour compared to before).
2. Typechecking of data (/newtype) constructor patterns. Some programs
involving patterns with unknown representations were accepted, such
as T20363. Now that we are stricter, this caused further issues,
culminating in Core Lint errors. However, the behaviour was
incorrect the whole time; the incorrectness only being revealed by
this change, not triggered by it.
This patch fixes this by overhauling where the representation
polymorphism involving pattern matching are done. Instead of doing
it in `tcMatches`, we instead ensure that the `matchExpected`
functions such as `matchExpectedFunTys`, `matchActualFunTySigma`,
`matchActualFunTysRho` allow return argument pattern types which
have a fixed RuntimeRep (as defined in Note [Fixed RuntimeRep]).
This ensures that the pattern matching code only ever handles types
with a known runtime representation. One exception was that
patterns with an unknown representation type could sneak in via
`tcConPat`, which points to a missing representation-polymorphism
check, which this patch now adds.
This means that we now reject the program in #20363, at least until
we implement PHASE 2 of FixedRuntimeRep (allowing type families in
RuntimeRep positions). The aforementioned refactoring, in which
checks have been moved to `matchExpected` functions, is a first
step in implementing PHASE 2 for patterns.
Fixes #20837
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8ff32124c8cd37050f3dc7cbb32b8d41711ebcaf" style="color: #1068bf; text-decoration: none;">8ff32124</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-03-14T15:09:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>DmdAnal: Don't unbox recursive data types (#11545)
As `Note [Demand analysis for recursive data constructors]` describes, we now
refrain from unboxing recursive data type arguments, for two reasons:
1. Relating to run/alloc perf: Similar to
`Note [CPR for recursive data constructors]`, it seldomly improves run/alloc
performance if we just unbox a finite number of layers of a potentially huge
data structure.
2. Relating to ghc/alloc perf: Inductive definitions on single-product
recursive data types like the one in T11545 will (diverge, and) have very
deep demand signatures before any other abortion mechanism in Demand
analysis is triggered. That leads to great and unnecessary churn on Demand
analysis when ultimately we will never make use of any nested strictness
information anyway.
Conclusion: Discard nested demand and boxity information on such recursive types
with the help of `Note [Detecting recursive data constructors]`.
I also implemented `GHC.Types.Unique.MemoFun.memoiseUniqueFun` in order to avoid
the overhead of repeated calls to `GHC.Core.Opt.WorkWrap.Utils.isRecDataCon`.
It's nice and simple and guards against some smaller regressions in T9233 and
T16577.
ghc/alloc performance-wise, this patch is a very clear win:
Test Metric value New value Change
---------------------------------------------------------------------------------------
LargeRecord(normal) ghc/alloc 6,141,071,720 6,099,871,216 -0.7%
MultiLayerModulesTH_OneShot(normal) ghc/alloc 2,740,973,040 2,705,146,640 -1.3%
T11545(normal) ghc/alloc 945,475,492 85,768,928 -90.9% GOOD
T13056(optasm) ghc/alloc 370,245,880 326,980,632 -11.7% GOOD
T18304(normal) ghc/alloc 90,933,944 76,998,064 -15.3% GOOD
T9872a(normal) ghc/alloc 1,800,576,840 1,792,348,760 -0.5%
T9872b(normal) ghc/alloc 2,086,492,432 2,073,991,848 -0.6%
T9872c(normal) ghc/alloc 1,750,491,240 1,737,797,832 -0.7%
TcPlugin_RewritePerf(normal) ghc/alloc 2,286,813,400 2,270,957,896 -0.7%
geo. mean -2.9%
No noteworthy change in run/alloc either.
NoFib results show slight wins, too:
--------------------------------------------------------------------------------
Program Allocs Instrs
--------------------------------------------------------------------------------
constraints -1.9% -1.4%
fasta -3.6% -2.7%
reverse-complem -0.3% -0.9%
treejoin -0.0% -0.3%
--------------------------------------------------------------------------------
Min -3.6% -2.7%
Max +0.1% +0.1%
Geometric Mean -0.1% -0.1%
Metric Decrease:
T11545
T13056
T18304
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ab618309069bb47645f33cd1b198ace46e27abb9" style="color: #1068bf; text-decoration: none;">ab618309</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2022-03-15T18:34:38+03:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Export (~) from Data.Type.Equality (#18862)
* Users can define their own (~) type operator
* Haddock can display documentation for the built-in (~)
* New transitional warnings implemented:
-Wtype-equality-out-of-scope
-Wtype-equality-requires-operators
Updates the haddock submodule.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/577135bf2251cf0aecf07ebb4966659d3fcc62b5" style="color: #1068bf; text-decoration: none;">577135bf</a></strong>
<div>
<span>by Aaron Allen</span>
<i>at 2022-03-16T02:27:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Convert Diagnostics in GHC.Tc.Gen.Foreign
Converts all uses of 'TcRnUnknownMessage' to proper diagnostics.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c1fed9da095303591c37c53bad5f5559381048d7" style="color: #1068bf; text-decoration: none;">c1fed9da</a></strong>
<div>
<span>by Aaron Allen</span>
<i>at 2022-03-16T02:27:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Suggest FFI extensions as hints (#20116)
- Use extension suggestion hints instead of suggesting extensions in the
error message body for several FFI errors.
- Adds a test case for `TcRnForeignImportPrimExtNotSet`
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a33d10452c261ab39ce8c0954bac9053c212a6cc" style="color: #1068bf; text-decoration: none;">a33d1045</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-03-16T02:28:24-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>TH: allow negative patterns in quotes (#20711)
We still don't allow negative overloaded patterns. Earler all negative patterns
were treated as negative overloaded patterns. Now, we expliclty check the
extension field to see if the pattern is actually a negative overloaded pattern
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1575c4a5d9611a7299c33d3fd98f52ddeff84c80" style="color: #1068bf; text-decoration: none;">1575c4a5</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-03-16T02:29:03-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Demand: Let `Boxed` win in `lubBoxity` (#21119)
Previously, we let `Unboxed` win in `lubBoxity`, which is unsoundly optimistic
in terms ob Boxity analysis. "Unsoundly" in the sense that we sometimes unbox
parameters that we better shouldn't unbox. Examples are #18907 and T19871.absent.
Until now, we thought that this hack pulled its weight becuase it worked around
some shortcomings of the phase separation between Boxity analysis and CPR
analysis. But it is a gross hack which caused regressions itself that needed all
kinds of fixes and workarounds. See for example #20767. It became impossible to
work with in !7599, so I want to remove it.
For example, at the moment, `lubDmd B dmd` will not unbox `dmd`,
but `lubDmd A dmd` will. Given that `B` is supposed to be the bottom element of
the lattice, it's hardly justifiable to get a better demand when `lub`bing with
`A`.
The consequence of letting `Boxed` win in `lubBoxity` is that we *would* regress
#2387, #16040 and parts of #5075 and T19871.sumIO, until Boxity and CPR
are able to communicate better. Fortunately, that is not the case since I could
tweak the other source of optimism in Boxity analysis that is described in
`Note [Unboxed demand on function bodies returning small products]` so that
we *recursively* assume unboxed demands on function bodies returning small
products. See the updated Note.
`Note [Boxity for bottoming functions]` describes why we need bottoming
functions to have signatures that say that they deeply unbox their arguments.
In so doing, I had to tweak `finaliseArgBoxities` so that it will never unbox
recursive data constructors. This is in line with our handling of them in CPR.
I updated `Note [Which types are unboxed?]` to reflect that.
In turn we fix #21119, #20767, #18907, T19871.absent and get a much simpler
implementation (at least to think about). We can also drop the very ad-hoc
definition of `deferAfterPreciseException` and its Note in favor of the
simple, intuitive definition we used to have.
Metric Decrease:
T16875
T18223
T18698a
T18698b
hard_hole_fits
Metric Increase:
LargeRecord
MultiComponentModulesRecomp
T15703
T8095
T9872d
Out of all the regresions, only the one in T9872d doesn't vanish in a perf
build, where the compiler is bootstrapped with -O2 and thus SpecConstr.
Reason for regressions:
* T9872d is due to `ty_co_subst` taking its `LiftingContext` boxed.
That is because the context is passed to a function argument, for
example in `liftCoSubstTyVarBndrUsing`.
* In T15703, LargeRecord and T8095, we get a bit more allocations in
`expand_syn` and `piResultTys`, because a `TCvSubst` isn't unboxed.
In both cases that guards against reboxing in some code paths.
* The same is true for MultiComponentModulesRecomp, where we get less unboxing
in `GHC.Unit.Finder.$wfindInstalledHomeModule`. In a perf build, allocations
actually *improve* by over 4%!
Results on NoFib:
--------------------------------------------------------------------------------
Program Allocs Instrs
--------------------------------------------------------------------------------
awards -0.4% +0.3%
cacheprof -0.3% +2.4%
fft -1.5% -5.1%
fibheaps +1.2% +0.8%
fluid -0.3% -0.1%
ida +0.4% +0.9%
k-nucleotide +0.4% -0.1%
last-piece +10.5% +13.9%
lift -4.4% +3.5%
mandel2 -99.7% -99.8%
mate -0.4% +3.6%
parser -1.0% +0.1%
puzzle -11.6% +6.5%
reverse-complem -3.0% +2.0%
scs -0.5% +0.1%
sphere -0.4% -0.2%
wave4main -8.2% -0.3%
--------------------------------------------------------------------------------
Summary excludes mandel2 because of excessive bias
Min -11.6% -5.1%
Max +10.5% +13.9%
Geometric Mean -0.2% +0.3%
--------------------------------------------------------------------------------
Not bad for a bug fix.
The regression in `last-piece` could become a win if SpecConstr would work on
non-recursive functions. The regression in `fibheaps` is due to
`Note [Reboxed crud for bottoming calls]`, e.g., #21128.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bb779b90bb093274ccf7a8e5b19f6661f4925bde" style="color: #1068bf; text-decoration: none;">bb779b90</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-03-16T02:29:42-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add a regression test for #21130
This problem was due to a bug in cloneWanted, which was incorrectly
creating a coercion hole to hold an evidence variable.
This bug was introduced by 8bb52d91 and fixed in 81740ce8.
Fixes #21130
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0f0e2394942842c700484ecf4b473a929a436b0d" style="color: #1068bf; text-decoration: none;">0f0e2394</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2022-03-17T10:16:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>linker: Initial Windows C++ exception unwinding support
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/36d20d4d5f089becd4dadb7bd6d477806e0b24a6" style="color: #1068bf; text-decoration: none;">36d20d4d</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2022-03-17T10:16:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>linker: Fix ADDR32NB relocations on Windows
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8a516527e03a17b5b7ebc3f7f88bf710bd16495c" style="color: #1068bf; text-decoration: none;">8a516527</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2022-03-17T10:16:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: properly escape string paths
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1a0dd0088247f9d4e403a460f0f6120184af3e15" style="color: #1068bf; text-decoration: none;">1a0dd008</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-03-17T10:17:13-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Hadrian: account for change in late-ccs flag
The late cost centre flag was renamed from -fprof-late-ccs
to -fprof-late in 7fe07143, but this change hadn't been
propagated to Hadrian.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8561c1afdbbda73a31cb8f8f1e80d1f403673e9b" style="color: #1068bf; text-decoration: none;">8561c1af</a></strong>
<div>
<span>by romes</span>
<i>at 2022-03-18T05:10:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>TTG: Refactor HsBracket
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/19163397000ae3ce9886a75bef900d35774d864e" style="color: #1068bf; text-decoration: none;">19163397</a></strong>
<div>
<span>by romes</span>
<i>at 2022-03-18T05:10:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Type-checking untyped brackets
When HsExpr GhcTc, the HsBracket constructor should hold a HsBracket
GhcRn, rather than an HsBracket GhcTc.
We make use of the HsBracket p extension constructor (XBracket
(XXBracket p)) to hold an HsBracket GhcRn when the pass is GhcTc
See !4782 https://gitlab.haskell.org/ghc/ghc/-/merge_requests/4782
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/310890a51372937afa69e1edac1179eba67ac046" style="color: #1068bf; text-decoration: none;">310890a5</a></strong>
<div>
<span>by romes</span>
<i>at 2022-03-18T05:10:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Separate constructors for typed and untyped brackets
Split HsBracket into HsTypedBracket and HsUntypedBracket.
Unfortunately, we still cannot get rid of
instance XXTypedBracket GhcTc = HsTypedBracket GhcRn
despite no longer requiring it for typechecking, but rather because the
TH desugarer works on GhcRn rather than GhcTc (See GHC.HsToCore.Quote)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4a2567f5641a4807584c90015dfc40a791f241b4" style="color: #1068bf; text-decoration: none;">4a2567f5</a></strong>
<div>
<span>by romes</span>
<i>at 2022-03-18T05:10:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>TTG: Refactor bracket for desugaring during tc
When desugaring a bracket we want to desugar /renamed/ rather than
/typechecked/ code; So in (HsExpr GhcTc) tree, we must
have a (HsExpr GhcRn) for the quotation itself.
This commit reworks the TTG refactor on typed and untyped brackets by
storing the /renamed/ code in the bracket field extension rather than in
the constructor extension in `HsQuote` (previously called
`HsUntypedBracket`)
See Note [The life cycle of a TH quotation] and https://gitlab.haskell.org/ghc/ghc/-/merge_requests/4782
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b056adc8062b4fe015450a21eb70e32dcf7023f5" style="color: #1068bf; text-decoration: none;">b056adc8</a></strong>
<div>
<span>by romes</span>
<i>at 2022-03-18T05:10:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>TTG: Make HsQuote GhcTc isomorphic to NoExtField
An untyped bracket `HsQuote p` can never be constructed with
`p ~ GhcTc`. This is because we don't typecheck `HsQuote` at all.
That's OK, because we also never use `HsQuote GhcTc`.
To enforce this at the type level we make `HsQuote GhcTc` isomorphic
to `NoExtField` and impossible to construct otherwise, by using TTG field
extensions to make all constructors, except for `XQuote` (which takes `NoExtField`),
unconstructable, with `DataConCantHappen`
This is explained more in detail in Note [The life cycle of a TH quotation]
Related discussion: https://gitlab.haskell.org/ghc/ghc/-/merge_requests/4782
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ac3b2e7deb0e2987ae3f27d62c03716de46ebc79" style="color: #1068bf; text-decoration: none;">ac3b2e7d</a></strong>
<div>
<span>by romes</span>
<i>at 2022-03-18T05:10:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>TTG: TH brackets finishing touches
Rewrite the critical notes and fix outdated ones,
use `HsQuote GhcRn` (in `HsBracketTc`) for desugaring regardless of the
bracket being typed or untyped,
remove unused `EpAnn` from `Hs*Bracket GhcRn`,
zonkExpr factor out common brackets code,
ppr_expr factor out common brackets code,
and fix tests,
to finish MR https://gitlab.haskell.org/ghc/ghc/-/merge_requests/4782.
-------------------------
Metric Decrease:
hard_hole_fits
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d147428a5041adcdda2ffe02e3012c7987be3c23" style="color: #1068bf; text-decoration: none;">d147428a</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-03-18T05:11:35-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>codeGen: Fix signedness of jump table indexing
Previously while constructing the jump table index we would
zero-extend the discriminant before subtracting the start of the
jump-table. This goes subtly wrong in the case of a sub-word, signed
discriminant, as described in the included Note. Fix this in both the
PPC and X86 NCGs.
Fixes #21186.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/435a3d5df098099ec984847b84f0bc734f5d2c3f" style="color: #1068bf; text-decoration: none;">435a3d5d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-03-18T05:11:35-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Add test for #21186
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e9d8de93ed8343be5a9530346f254b18dd6df3bc" style="color: #1068bf; text-decoration: none;">e9d8de93</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-03-19T07:35:49-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>TH: Fix pretty printing of newtypes with operators and GADT syntax (#20868)
The pretty printer for regular data types already accounted for these,
and had some duplication with the newtype pretty printer.
Factoring the logic out into a common function and using it for both
newtypes and data declarations is enough to fix the bug.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/244da9ebc01b2a8c72f78e7be4411c32a4d0f524" style="color: #1068bf; text-decoration: none;">244da9eb</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-03-19T07:36:24-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>List GHC.Event.Internal in base.cabal on Windows
GHC.Event.Internal was not listed in base.cabal on Windows. This caused
undefined reference errors. This patch adds it back, by moving it out
of the OS-specific logic in base.cabal.
Fixes #21245.</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d1c03719277c2eda9ee9f4b45c62fa954b609b8e" style="color: #1068bf; text-decoration: none;">d1c03719</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-03-19T07:37:00-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Compact regions: Maintain tags properly
Fixes #21251
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d45bb70178e044bc8b6e8215da7bc8ed0c95f2cb" style="color: #1068bf; text-decoration: none;">d45bb701</a></strong>
<div>
<span>by romes</span>
<i>at 2022-03-19T07:37:36-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove dead code HsDoRn
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c842611fc72d987519cd9fab1c351135ae93665e" style="color: #1068bf; text-decoration: none;">c842611f</a></strong>
<div>
<span>by nineonine</span>
<i>at 2022-03-20T21:16:06-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Revamp derived Eq instance code generation (#17240)
This patch improves code generation for derived Eq instances.
The idea is to use 'dataToTag' to evaluate both arguments.
This allows to 'short-circuit' when tags do not match.
Unfortunately, inner evals are still present when we branch
on tags. This is due to the way 'dataToTag#' primop
evaluates its argument in the code generator. #21207 was
created to explore further optimizations.
Metric Decrease:
LargeRecord
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/52ffd38c610f418ee1d1a549cfdfdaa11794ea40" style="color: #1068bf; text-decoration: none;">52ffd38c</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-03-20T21:16:46-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Avoid some SOURCE imports
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b91798be48d9fa02610b419ccea15a7dfd663823" style="color: #1068bf; text-decoration: none;">b91798be</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-03-23T13:39:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hi haddock: Lex and store haddock docs in interface files
Names appearing in Haddock docstrings are lexed and renamed like any other names
appearing in the AST. We currently rename names irrespective of the namespace,
so both type and constructor names corresponding to an identifier will appear in
the docstring. Haddock will select a given name as the link destination based on
its own heuristics.
This patch also restricts the limitation of `-haddock` being incompatible with
`Opt_KeepRawTokenStream`.
The export and documenation structure is now computed in GHC and serialised in
.hi files. This can be used by haddock to directly generate doc pages without
reparsing or renaming the source. At the moment the operation of haddock
is not modified, that's left to a future patch.
Updates the haddock submodule with the minimum changes needed.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/78db231ffdf8385662812781c1d09c630cfad313" style="color: #1068bf; text-decoration: none;">78db231f</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-03-23T13:40:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>configure: bump LlvmMaxVersion to 14
LLVM 13.0.0 is released in Oct 2021, and latest head validates against
LLVM 13 just fine if LlvmMaxVersion is bumped.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b06e5dd8a2b258d5d6f3676c9f424cc09d4d73f3" style="color: #1068bf; text-decoration: none;">b06e5dd8</a></strong>
<div>
<span>by Adam Sandberg Ericsson</span>
<i>at 2022-03-23T13:40:54-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>docs: clarify the eventlog format documentation a little bit
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4dc624987a7e000e9e1086a601039afafb7f2d28" style="color: #1068bf; text-decoration: none;">4dc62498</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-23T13:41:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix behaviour of -Wunused-packages in ghci
Ticket #21110 points out that -Wunused-packages behaves a bit unusually
in GHCi. Now we define the semantics for -Wunused-packages in
interactive mode as follows:
* If you use -Wunused-packages on an initial load then the warning is reported.
* If you explicitly set -Wunused-packages on the command line then the
warning is displayed (until it is disabled)
* If you then subsequently modify the set of available targets by using
:load or :cd (:cd unloads everything) then the warning is (silently)
turned off.
This means that every :r the warning is printed if it's turned on (but you did ask for it).
Fixes #21110
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fed05347224ee2fc36e926eb18532327896e287a" style="color: #1068bf; text-decoration: none;">fed05347</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-03-23T13:42:07-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/adjustor: Place adjustor templates in data section on all OSs
In !7604 we started placing adjustor templates in the data section on
Linux as some toolchains there reject relocations in the text section.
However, it turns out that OpenBSD also exhibits this restriction.
Fix this by *always* placing adjustor templates in the data section.
Fixes #21155.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/db32bb8c704f83ef6dfe839b733274505ded6a08" style="color: #1068bf; text-decoration: none;">db32bb8c</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-03-23T13:42:44-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve error message when warning about unsupported LLVM version (#20958)
Change the wording to make it clear that the upper bound is non-inclusive.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f214349ac9a9114e564f660d0618d683e2a4f74e" style="color: #1068bf; text-decoration: none;">f214349a</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-03-23T13:43:20-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Untag function field in scavenge_PAP_payload
Previously we failed to untag the function closure when scavenging the
payload of a PAP, resulting in an invalid closure pointer being passed
to scavenge_large_bitmap and consequently #21254. Fix this.
Fixes #21254
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e6d0e287272e1f5ee46d80676a1df2ff65584dad" style="color: #1068bf; text-decoration: none;">e6d0e287</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-03-23T13:43:20-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Don't mark object code in markCAFs unless necessary
Previously `markCAFs` would call `markObjectCode` even in non-major GCs.
This is problematic since `prepareUnloadCheck` is not called in such
GCs, meaning that the section index has not been updated.
Fixes #21254
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1a7cf0963e3511864013bbadfd1f01aaae16df80" style="color: #1068bf; text-decoration: none;">1a7cf096</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-03-23T13:44:05-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Avoid redundant imports of GHC.Driver.Session
Remove GHC.Driver.Session imports that weren't considered as redundant
because of the reexport of PlatformConstants. Also remove this reexport
as modules using this datatype should import GHC.Platform instead.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e3f60577b5c513ae9c7bc6dc70c95c3e2762fa6c" style="color: #1068bf; text-decoration: none;">e3f60577</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-03-23T13:44:05-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Reverse dependency between StgToCmm and Runtime.Heap.Layout
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e6585ca168ba55ca81a3e6cd7221707719b7fa56" style="color: #1068bf; text-decoration: none;">e6585ca1</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-03-23T13:44:46-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Define filterOut with filter
filter has fusion rules that filterOut lacks
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c58d008c13391454ad565932593d5a46d5aeadf3" style="color: #1068bf; text-decoration: none;">c58d008c</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2022-03-24T06:10:43-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix and simplify DeriveAnyClass's context inference using SubTypePredSpec
As explained in `Note [Gathering and simplifying constraints for DeriveAnyClass]`
in `GHC.Tc.Deriv.Infer`, `DeriveAnyClass` infers instance contexts by emitting
implication constraints. Previously, these implication constraints were
constructed by hand. This is a terribly trick thing to get right, as it
involves a delicate interplay of skolemisation, metavariable instantiation, and
`TcLevel` bumping. Despite much effort, we discovered in #20719 that the
implementation was subtly incorrect, leading to valid programs being rejected.
While we could scrutinize the code that manually constructs implication
constraints and repair it, there is a better, less error-prone way to do
things. After all, the heart of `DeriveAnyClass` is generating code which
fills in each class method with defaults, e.g., `foo = $gdm_foo`. Typechecking
this sort of code is tantamount to calling `tcSubTypeSigma`, as we much ensure
that the type of `$gdm_foo` is a subtype of (i.e., more polymorphic than) the
type of `foo`. As an added bonus, `tcSubTypeSigma` is a battle-tested function
that handles skolemisation, metvariable instantiation, `TcLevel` bumping, and
all other means of tricky bookkeeping correctly.
With this insight, the solution to the problems uncovered in #20719 is simple:
use `tcSubTypeSigma` to check if `$gdm_foo`'s type is a subtype of `foo`'s
type. As a side effect, `tcSubTypeSigma` will emit exactly the implication
constraint that we were attempting to construct by hand previously. Moreover,
it does so correctly, fixing #20719 as a consequence.
This patch implements the solution thusly:
* The `PredSpec` data type (previously named `PredOrigin`) is now split into
`SimplePredSpec`, which directly stores a `PredType`, and `SubTypePredSpec`,
which stores the actual and expected types in a subtype check.
`SubTypePredSpec` is only used for `DeriveAnyClass`; all other deriving
strategies use `SimplePredSpec`.
* Because `tcSubTypeSigma` manages the finer details of type variable
instantiation and constraint solving under the hood, there is no longer any
need to delicately split apart the method type signatures in
`inferConstraintsAnyclass`. This greatly simplifies the implementation of
`inferConstraintsAnyclass` and obviates the need to store skolems,
metavariables, or given constraints in a `ThetaSpec` (previously named
`ThetaOrigin`). As a bonus, this means that `ThetaSpec` now simply becomes a
synonym for a list of `PredSpec`s, which is conceptually much simpler than it
was before.
* In `simplifyDeriv`, each `SubTypePredSpec` results in a call to
`tcSubTypeSigma`. This is only performed for its side effect of emitting
an implication constraint, which is fed to the rest of the constraint solving
machinery in `simplifyDeriv`. I have updated
`Note [Gathering and simplifying constraints for DeriveAnyClass]` to explain
this in more detail.
To make the changes in `simplifyDeriv` more manageable, I also performed some
auxiliary refactoring:
* Previously, every iteration of `simplifyDeriv` was skolemising the type
variables at the start, simplifying, and then performing a reverse
substitution at the end to un-skolemise the type variables. This is not
necessary, however, since we can just as well skolemise once at the
beginning of the `deriving` pipeline and zonk the `TcTyVar`s after
`simplifyDeriv` is finished. This patch does just that, having been made
possible by prior work in !7613. I have updated `Note [Overlap and deriving]`
in `GHC.Tc.Deriv.Infer` to explain this, and I have also left comments on
the relevant data structures (e.g., `DerivEnv` and `DerivSpec`) to explain
when things might be `TcTyVar`s or `TyVar`s.
* All of the aforementioned cleanup allowed me to remove an ad hoc
deriving-related in `checkImplicationInvariants`, as all of the skolems in
a `tcSubTypeSigma`–produced implication constraint should now be `TcTyVar`
at the time the implication is created.
* Since `simplifyDeriv` now needs a `SkolemInfo` and `UserTypeCtxt`, I have
added `ds_skol_info` and `ds_user_ctxt` fields to `DerivSpec` to store these.
Similarly, I have also added a `denv_skol_info` field to `DerivEnv`, which
ultimately gets used to initialize the `ds_skol_info` in a `DerivSpec`.
Fixes #20719.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/21680fb05df18f4da855e1ca66e895b82cfd1e96" style="color: #1068bf; text-decoration: none;">21680fb0</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-03-24T06:11:19-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>WorkWrap: Handle partial FUN apps in `isRecDataCon` (#21265)
Partial FUN apps like `(->) Bool` aren't detected by `splitFunTy_maybe`.
A silly oversight that is easily fixed by replacing `splitFunTy_maybe` with a
guard in the `splitTyConApp_maybe` case.
But fortunately, Simon nudged me into rewriting the whole `isRecDataCon`
function in a way that makes it much shorter and hence clearer which DataCons
are actually considered as recursive.
Fixes #21265.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a2937e2b2cadc72b78641c321398cf6b7e7a485c" style="color: #1068bf; text-decoration: none;">a2937e2b</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-24T17:13:22-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add test for T21035
This test checks that you are allowed to explicitly supply object files
for dependencies even if you haven't got the shared object for that
library yet.
Fixes #21035
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1756d54763d123cb8eabdc8fb95b3ece8c10a6d4" style="color: #1068bf; text-decoration: none;">1756d547</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-24T17:13:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add check to ensure we are not building validate jobs for releases
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/99623358754d812b8b4bdfcdc57190d38617b9cc" style="color: #1068bf; text-decoration: none;">99623358</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-24T17:13:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Correct generation of hsc2hs wrapper
If you inspect the inside of a wrapper script for hsc2hs you will see
that the cflag and lflag values are concatenated incorrectly.
```
HSC2HS_EXTRA="--cflag=-U__i686--lflag=-fuse-ld=gold"
```
It should instead be
```
HSC2HS_EXTRA="--cflag=-U__i686 --lflag=-fuse-ld=gold"
```
Fixes #21221
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fefd4e312f0249117f2d5a5a6962edb1e0b6ed19" style="color: #1068bf; text-decoration: none;">fefd4e31</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-24T17:13:59-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Remove library dependenices from T21119
These dependencies would affect the demand signature depending on
various rules and so on.
Fixes #21271
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5ff690b8474c74e9c968ef31e568c1ad0fe719a1" style="color: #1068bf; text-decoration: none;">5ff690b8</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-24T17:13:59-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Generate jobs for all normal builds and use hadrian for all builds
This commit introduces a new script (.gitlab/gen_ci.hs) which generates
a yaml file (.gitlab/jobs.yaml) which contains explicit descriptions for
all the jobs we want to run. The jobs are separated into three
categories:
* validate - jobs run on every MR
* nightly - jobs run once per day on the master branch
* release - jobs for producing release artifacts
The generation script is a Haskell program which includes a DSL for
specifying the different jobs. The hope is that it's easier to reason
about the different jobs and how the variables are merged together
rather than the unclear and opaque yaml syntax. The goal is to fix
issues like #21190 once and for all..
The `.gitlab/jobs.yaml` can be generated by running the `.gitlab/generate_jobs`
script. You have to do this manually.
Another consequence of this patch is that we use hadrian for all the
validate, nightly and release builds on all platforms.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1d673aa25205084d3973a3e9c7b7cd84a8b3171c" style="color: #1068bf; text-decoration: none;">1d673aa2</a></strong>
<div>
<span>by Christiaan Baaij</span>
<i>at 2022-03-25T11:35:49-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add the OPAQUE pragma
A new pragma, `OPAQUE`, that ensures that every call of a named
function annotated with an `OPAQUE` pragma remains a call of that
named function, not some name-mangled variant.
Implements GHC proposal 0415:
https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0415-opaque-pragma.rst
This commit also updates the haddock submodule to handle the newly
introduced lexer tokens corresponding to the OPAQUE pragma.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/83f5841b32ef11c54ff1e24dd5b92bc3c77f6250" style="color: #1068bf; text-decoration: none;">83f5841b</a></strong>
<div>
<span>by Bodigrim</span>
<i>at 2022-03-25T11:36:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add instance Lift ByteArray
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7cc1184aec70e817a47f99d09e103c275e2a4b9a" style="color: #1068bf; text-decoration: none;">7cc1184a</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-25T11:37:07-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make -ddump-rn-ast and -ddump-tc-ast work in GHCi
Fixes #17830
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/940feaf3c2334d6eb8b66bd9d3edd560f789c94f" style="color: #1068bf; text-decoration: none;">940feaf3</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-03-25T11:37:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Modularize Tidy (#17957)
- Factorize Tidy options into TidyOpts datatype. Initialize it in
GHC.Driver.Config.Tidy
- Same thing for StaticPtrOpts
- Perform lookups of unpackCString[Utf8]# once in initStaticPtrOpts
instead of for every use of mkStringExprWithFS
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/25101813905a78010e25ecc3a5f392e2403ae487" style="color: #1068bf; text-decoration: none;">25101813</a></strong>
<div>
<span>by Takenobu Tani</span>
<i>at 2022-03-28T01:16:02-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>users-guide: Correct markdown for profiling
This patch corrects some markdown.
[skip ci]
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c832ae938e4f8cfd8ad2a0b06fa233df726175f6" style="color: #1068bf; text-decoration: none;">c832ae93</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-28T01:16:38-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Flag cabal flag handling
This patch basically deletes some ad-hoc handling of Cabal Flags and
replaces it with a correct query of the LocalBuildInfo. The flags in the
local build info can be modified by users by passing hadrian options
For example (!4331)
```
*.genapply.cabal.configure.opts += --flags=unregisterised
```
And all the flags specified by the `Cabal Flags` builder were already
passed to configure properly using `--flags`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a9f3a5c67b8822aa32b2d158ae71698c19cffb32" style="color: #1068bf; text-decoration: none;">a9f3a5c6</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-03-28T01:16:38-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Disable text's dependency on simdutf by default
Unfortunately we are simply not currently in a good position to robustly
ship binary distributions which link against C++ code like simdutf.
Fixes #20724.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/eff86e8a5bddf61824fcd0147a70890b692efdcb" style="color: #1068bf; text-decoration: none;">eff86e8a</a></strong>
<div>
<span>by Richard Eisenberg</span>
<i>at 2022-03-28T01:17:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add Red Herring to Note [What might equal later?]
Close #21208.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/12653be933aa2c6d337f006a62f2d41bd584e7a4" style="color: #1068bf; text-decoration: none;">12653be9</a></strong>
<div>
<span>by jberryman</span>
<i>at 2022-03-28T01:17:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Document typed splices inhibiting unused bind detection (#16524)</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4aeade157474ae379466343b00920bbcc0bfa628" style="color: #1068bf; text-decoration: none;">4aeade15</a></strong>
<div>
<span>by Adam Sandberg Ericsson</span>
<i>at 2022-03-28T01:18:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>users-guide: group ticky-ticky profiling under one heading
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cc59648adbf480e6af14e31e9e46801ab095f11a" style="color: #1068bf; text-decoration: none;">cc59648a</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-03-28T01:19:12-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Hadrian: allow testsuite to run with cross-compilers (#21292)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/89cb13153dbe9a88706c43dbf0f681e90ecaa599" style="color: #1068bf; text-decoration: none;">89cb1315</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-28T01:19:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Add show target to bindist makefile
Some build systems use "make show" to query facts about the bindist, for
example:
```
make show VALUE=ProjectVersion > version
```
to determine the ProjectVersion
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8229885cb6a9f78ab09468f3797e3ec48ea24f82" style="color: #1068bf; text-decoration: none;">8229885c</a></strong>
<div>
<span>by Alan Zimmerman</span>
<i>at 2022-03-28T19:23:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>EPA: let stmt with semicolon has wrong anchor
The code
let ;x =1
Captures the semicolon annotation, but did not widen the anchor in the
ValBinds.
Fix that.
Closes #20247
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2c12627caba908153bf0af92459d08e399aa8aad" style="color: #1068bf; text-decoration: none;">2c12627c</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2022-03-28T19:24:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Consistently attach SrcSpans to sub-expressions in TH splices
Before, `GHC.ThToHs` was very inconsistent about where various sub-expressions
would get the same `SrcSpan` from the original TH splice location or just a
generic `noLoc` `SrcSpan`. I have ripped out all uses of `noLoc` in favor of
the former instead, and I have added a
`Note [Source locations within TH splices]` to officially enshrine this
design choice.
Fixes #21299.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/789add55e0f5648981ffba77135b2a525369bf79" style="color: #1068bf; text-decoration: none;">789add55</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-03-29T13:07:22-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix all invalid haddock comments in the compiler
Fixes #20935 and #20924
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/967dad03566c754ce88388e61678b70eddfee528" style="color: #1068bf; text-decoration: none;">967dad03</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-03-29T13:07:22-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Build lib:GHC with -haddock and -Winvalid-haddock (#21273)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ad09a5f7671c5594524c517945b2bdd7c5e2c8fa" style="color: #1068bf; text-decoration: none;">ad09a5f7</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-03-29T13:08:05-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Hadrian: make DDEBUG separate from debugged RTS
This patchs separates whether -DDEBUG is enabled (i.e. whether debug
assertions are enabled) from whether we are using the debugged RTS
(i.e. GhcDebugged = YES).
This means that we properly skip tests which have been marked with
`when(compiler_debugged(), skip)`.
Fixes #21113, #21153 and #21234
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/840a6811b074a883b6e01ff10ac65387acd85089" style="color: #1068bf; text-decoration: none;">840a6811</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-29T13:08:42-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>RTS: Zero gc_cpu_start and gc_cpu_end after accounting
When passed a combination of `-N` and `-qn` options the cpu time for
garbage collection was being vastly overcounted because the counters
were not being zeroed appropiately.
When -qn1 is passed, only 1 of the N avaiable GC threads is chosen to
perform work, the rest are idle. At the end of the GC period, stat_endGC
traverses all the GC threads and adds up the elapsed time from each of
them. For threads which didn't participate in this GC, the value of the
cpu time should be zero, but before this patch, the counters were not
zeroed and hence we would count the same elapsed time on many subsequent
iterations (until the thread participated in a GC again).
The most direct way to zero these fields is to do so immediately after
the value is added into the global counter, after which point they are
never used again.
We also tried another approach where we would zero the counter in
yieldCapability but there are some (undiagnosed) siations where a
capbility would not pass through yieldCapability before the GC ended and
the same double counting problem would occur.
Fixes #21082
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dda46e2da13268c239db3290720b014cef00c01d" style="color: #1068bf; text-decoration: none;">dda46e2d</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-29T13:09:18-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add test for T21306
Fixes #21306
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f07c7766663fa52a037aaf941fd0d34523ff2f2f" style="color: #1068bf; text-decoration: none;">f07c7766</a></strong>
<div>
<span>by Jakob Brünker</span>
<i>at 2022-03-30T03:10:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Give parsing plugins access to errors
Previously, when the parser produced non-fatal errors (i.e. it produced
errors but the 'PState' is 'POk'), compilation would be aborted before
the 'parsedResultAction' of any plugin was invoked. This commit changes
that, so that such that 'parsedResultAction' gets collections of
warnings and errors as argument, and must return them after potentially
modifying them.
Closes #20803
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e5dfde75850a6c18fca55b302713fe81794069dd" style="color: #1068bf; text-decoration: none;">e5dfde75</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-03-30T03:11:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix reference to Note [FunBind vs PatBind]
This Note was renamed in 2535a6716202253df74d8190b028f85cc6d21b72 yet
this occurrence was not updated.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/21894a6318e0daffa0e34041855c3c73ad1f5b6f" style="color: #1068bf; text-decoration: none;">21894a63</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-03-30T03:11:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Refactor: make primtypes independent of PrimReps
Previously, 'pcPrimTyCon', the function used to define a primitive type,
was taking a PrimRep, only to convert it to a RuntimeRep. Now it takes
a RuntimeRep directly.
Moved primRepToRuntimeRep to GHC.Types.RepType. It is now
located next to its inverse function runtimeRepPrimRep.
Now GHC.Builtin.Types.Prim no longer mentions PrimRep, and GHC.Types.RepType
no longer imports GHC.Builtin.Types.Prim.
Removed unused functions `primRepsToRuntimeRep` and `mkTupleRep`.
Removed Note [PrimRep and kindPrimRep] - it was never referenced,
didn't belong to Types.Prim, and Note [Getting from RuntimeRep to
PrimRep] is more comprehensive.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/43da296365ddbbb807dead5e97720504ce729660" style="color: #1068bf; text-decoration: none;">43da2963</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-03-30T09:55:49+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix mention of non-existent "rehydrateIface" function [skip ci]
Fixes #21303
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6793a20fe0cd1f04dabad46b87e86018abf73e54" style="color: #1068bf; text-decoration: none;">6793a20f</a></strong>
<div>
<span>by gershomb</span>
<i>at 2022-04-01T10:33:46+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove wrong claim about naturality law.
This docs change removes a longstanding confusion in the Traversable
docs. The docs say "(The naturality law is implied by parametricity and
thus so is the purity law [1, p15].)". However if one reads the
reference a different "natural" law is implied by parametricity. The
naturality law given as a law here is imposed. Further, the reference
gives examples which violate both laws -- so they cannot be implied by
parametricity. This PR just removes the wrong claim.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5beeff46972b8b52e9f2572fff8b1ad9ace38cd8" style="color: #1068bf; text-decoration: none;">5beeff46</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-01T10:34:39+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Refactor handling of global initializers
GHC uses global initializers for a number of things including
cost-center registration, info-table provenance registration, and setup
of foreign exports. Previously, the global initializer arrays which
referenced these initializers would live in the object file of the C
stub, which would then be merged into the main object file of the
module.
Unfortunately, this approach is no longer tenable with the move to
Clang/LLVM on Windows (see #21019). Specifically, lld's PE backend does
not support object merging (that is, the -r flag). Instead we are now
rather packaging a module's object files into a static library. However,
this is problematic in the case of initializers as there are no
references to the C stub object in the archive, meaning that the linker
may drop the object from the final link.
This patch refactors our handling of global initializers to instead
place initializer arrays within the object file of the module to which
they belong. We do this by introducing a Cmm data declaration containing
the initializer array in the module's Cmm stream. While the initializer
functions themselves remain in separate C stub objects, the reference
from the module's object ensures that they are not dropped from the
final link.
In service of #21068.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3e6fe71b09fcaa6b0672f94ea33dc0a284bf9cce" style="color: #1068bf; text-decoration: none;">3e6fe71b</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-01T10:35:41+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix remaining issues in eventlog types (gen_event_types.py)
* The size of End concurrent mark phase looks wrong and, it used to be 4 and now it's 0.
* The size of Task create is wrong, used to be 18 and now 14.
* The event ticky-ticky entry counter begin sample has the wrong name
* The event ticky-ticky entry counter being sample has the wrong size, was 0 now 32.
Closes #21070
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7847f47a72a25ae6b4523907e452b666d72d0d28" style="color: #1068bf; text-decoration: none;">7847f47a</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-01T10:35:41+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>users-guide: Fix a few small issues in eventlog format descriptions
The CONC_MARK_END event description didn't mention its payload.
Clarify the meaning of the CREATE_TASK's payload.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/acfd5a4c4f0a235240a15dc9f4417a11ece5a143" style="color: #1068bf; text-decoration: none;">acfd5a4c</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-01T10:35:53+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Regenerate jobs.yaml
It seems I forgot to update this to reflect the current state of
gen_ci.hs
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a952dd80d40bf6b67194a44ff71d7bf75957d29e" style="color: #1068bf; text-decoration: none;">a952dd80</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-01T10:35:59+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Attempt to fix windows cache issues
It appears that running the script directly does nothing (no info is
printed about saving the cache).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fb65e6e3e27a56cd16142c0eb7bd0a7e1e259742" style="color: #1068bf; text-decoration: none;">fb65e6e3</a></strong>
<div>
<span>by Adrian Ratiu</span>
<i>at 2022-04-01T10:49:52+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>fp_prog_ar.m4: take AR var into consideration
In ChromeOS and Gentoo we want the ability to use LLVM ar
instead of GNU ar even though both are installed, thus we
pass (for eg) AR=llvm-ar to configure.
Unfortunately GNU ar always gets picked regardless of the
AR setting because the check does not consider the AR var
when setting fp_prog_ar, hence this fix.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1daaefdf3f772d74838c0ef0a6be0e5a0ce6ca23" style="color: #1068bf; text-decoration: none;">1daaefdf</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2022-04-01T10:50:16+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>T13366 requires c++ & c++abi libraries on OpenBSD
Fixes this failure:
=====> 1 of 1 [0, 0, 0]
T13366(normal) 1 of 1 [0, 0, 0] Compile failed (exit code 1) errors were:
<no location info>: error:
user specified .o/.so/.DLL could not be loaded (File not found)
Whilst trying to load: (dynamic) stdc++
Additional directories searched: (none)
*** unexpected failure for T13366(normal)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/18e6c85b2ccc8c52dca22bfa7f6c278bd1610736" style="color: #1068bf; text-decoration: none;">18e6c85b</a></strong>
<div>
<span>by Jakob Bruenker</span>
<i>at 2022-04-01T10:54:28+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>new datatypes for parsedResultAction
Previously, the warnings and errors were given and returned as a tuple
(Messages PsWarnings, Messages PsErrors). Now, it's just PsMessages.
This, together with the HsParsedModule the parser plugin gets and
returns, has been wrapped up as ParsedResult.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9727e5924d9b326a0113a68f7ecb396015b80bf4" style="color: #1068bf; text-decoration: none;">9727e592</a></strong>
<div>
<span>by Morrow</span>
<i>at 2022-04-01T10:55:12+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Clarify that runghc interprets the input program
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f589dea3b30695701ebcc0d742488290273d8cf2" style="color: #1068bf; text-decoration: none;">f589dea3</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-04-01T10:59:58+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Unify RuntimeRep arguments in ty_co_match
The `ty_co_match` function ignored the implicit RuntimeRep coercions
that occur in a `FunCo`. Even though a comment explained that this
should be fine, #21205 showed that it could result in discarding a
RuntimeRep coercion, and thus discarding an important cast entirely.
With this patch, we first match the kinds in `ty_co_match`.
Fixes #21205
-------------------------
Metric Increase:
T12227
T18223
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6f4dc372d5c91686ad4148b82ad49a71d4dd82b5" style="color: #1068bf; text-decoration: none;">6f4dc372</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-04-01T11:01:35+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Export MutableByteArray from Data.Array.Byte
This implements CLC proposal #49
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5df9f5e732a1086c66ad391e581f55b9d3e3712c" style="color: #1068bf; text-decoration: none;">5df9f5e7</a></strong>
<div>
<span>by ARATA Mizuki</span>
<i>at 2022-04-01T11:02:35+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add test cases for #20640
Closes #20640
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8334ff9e5de48361e8fde3fdacb4523857c366b7" style="color: #1068bf; text-decoration: none;">8334ff9e</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-04-01T11:03:16+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Minor cleanup
- Remove unused functions exprToCoercion_maybe, applyTypeToArg,
typeMonoPrimRep_maybe, runtimeRepMonoPrimRep_maybe.
- Replace orValid with a simpler check
- Use splitAtList in applyTysX
- Remove calls to extra_clean in the testsuite; it does not do anything.
Metric Decrease:
T18223
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b2785cfc60f3c481f35181c41729561113866974" style="color: #1068bf; text-decoration: none;">b2785cfc</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-04-01T11:04:07+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian typos
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/418e6fab732b9aaa0a00c5e235f445fb547ae196" style="color: #1068bf; text-decoration: none;">418e6fab</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-04-01T11:04:12+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>two typos
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dd7c7c998aea402bd5d8ae7ef7854a3bb60bcf2b" style="color: #1068bf; text-decoration: none;">dd7c7c99</a></strong>
<div>
<span>by Phil de Joux</span>
<i>at 2022-04-01T11:04:56+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add tests and docs on plugin args and order.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3e209a62148a45b4af7441ee963f6f055b333864" style="color: #1068bf; text-decoration: none;">3e209a62</a></strong>
<div>
<span>by MaxHearnden</span>
<i>at 2022-04-01T11:05:19+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Change may not to might not</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b84380d383cc723644199977dfc2cfbf467358c4" style="color: #1068bf; text-decoration: none;">b84380d3</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-01T11:07:27+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Remove linters-common from bindist
Zubin observed that the bindists contains the utility library
linters-common. There are two options:
1. Make sure only the right files are added into the bindist.. a bit
tricky due to the non-trivial structure of the lib directory.
2. Remove the bad files once they get copied in.. a bit easier
So I went for option 2 but we perhaps should go for option 1 in the
future.
Fixes #21203
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ba9904c184bf210e044c4eaad25d37750c0d4219" style="color: #1068bf; text-decoration: none;">ba9904c1</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-04-01T11:07:31+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: allow testing linters with out of tree compilers
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/265477593865f436fe97c903cc20d7d448a66b79" style="color: #1068bf; text-decoration: none;">26547759</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-01T11:07:35+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Introduce CheckProgram datatype to replace a 7-tuple
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/df65d732d6a39e6d0a7886dc5faa265caece3ce0" style="color: #1068bf; text-decoration: none;">df65d732</a></strong>
<div>
<span>by Jakob Bruenker</span>
<i>at 2022-04-01T11:08:28+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix panic when pretty printing HsCmdLam
When pretty printing a HsCmdLam with more than one argument, GHC
panicked because of a missing case. This fixes that.
Closes #21300
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ad6cd16515101c331123bd3566b9c0861a6cac5f" style="color: #1068bf; text-decoration: none;">ad6cd165</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-04-01T11:10:06+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Remove vestigial -this-unit-id support check
This has been dead code since 400ead81e80f66ad7b1260b11b2a92f25ccc3e5a.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8ca7ab81b4f2344116646f849843e8b0fc6fd4b7" style="color: #1068bf; text-decoration: none;">8ca7ab81</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-01T11:10:23+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Fix race involving empty package databases
There was a small chance of a race occuring between the small window of
1. The first package (.conf) file get written into the database
2. hadrian calling "ghc-pkg recache" to refresh the package.conf file
In this window the package database would contain rts.conf but not a
package.cache file, and therefore if ghc was invoked it would error
because it was missing.
To solve this we call "ghc-pkg recache" at when the database is created
by shake by writing the stamp file into the database folder. This also
creates the package.cache file and so avoids the possibility of this
race.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cc4ec64b2e4dd2e7a68ff554c4d3604942c71f38" style="color: #1068bf; text-decoration: none;">cc4ec64b</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-01T11:11:05+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Add assertion that in/out tree args are the same
There have been a few instances where this calculation was incorrect, so
we add a non-terminal assertion when now checks they the two
computations indeed compute the same thing.
Fixes #21285
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/691508d87ec089e46524461a5c6ec59b1c17be4c" style="color: #1068bf; text-decoration: none;">691508d8</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-01T11:13:10+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hlint: Ignore suggestions in generated HaddockLex file
With the make build system this file ends up in the compiler/
subdirectory so is linted. With hadrian, the file ends up in _build so
it's not linted.
Fixes #21313
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f8f152e7089af9a5434408e17ff071999d381ee1" style="color: #1068bf; text-decoration: none;">f8f152e7</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-04-01T11:14:08+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Change GHC.Prim to GHC.Exts in docs and tests
Users are supposed to import GHC.Exts rather than GHC.Prim.
Part of #18749.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f8fc6d2e91038a98a321eceefe0a2ffff3dc9e72" style="color: #1068bf; text-decoration: none;">f8fc6d2e</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-01T11:15:24+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>driver: Improve -Wunused-packages error message (and simplify implementation)
In the past I improved the part of -Wunused-packages which found which
packages were used. Now I improve the part which detects which ones were
specified. The key innovation is to use the explicitUnits field from
UnitState which has the result of resolving the package flags, so we
don't need to mess about with the flag arguments from DynFlags anymore.
The output now always includes the package name and version (and the
flag which exposed it).
```
The following packages were specified via -package or -package-id flags,
but were not needed for compilation:
- bytestring-0.11.2.0 (exposed by flag -package bytestring)
- ghc-9.3 (exposed by flag -package ghc)
- process-1.6.13.2 (exposed by flag -package process)
```
Fixes #21307
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5e5a12d9c672ee30590293e3f2dd48c15d1acf35" style="color: #1068bf; text-decoration: none;">5e5a12d9</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-01T11:15:32+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>driver: In oneshot mode, look for interface files in hidir
How things should work:
* -i is the search path for source files
* -hidir explicitly sets the search path for interface files and the output location for interface files.
* -odir sets the search path and output location for object files.
Before in one shot mode we would look for the interface file in the
search locations given by `-i`, but then set the path to be in the
`hidir`, so in unusual situations the finder could find an interface
file in the `-i` dir but later fail because it tried to read the
interface file from the `-hidir`.
A bug identified by #20569
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/950f58e7bf584ec6970327ac7c7ae3f3fdbc9882" style="color: #1068bf; text-decoration: none;">950f58e7</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-01T11:15:36+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>docs: Update documentation interaction of search path, -hidir and -c mode.
As noted in #20569 the documentation for search path was wrong because
it seemed to indicate that `-i` dirs were important when looking for
interface files in `-c` mode, but they are not important if `-hidir` is
set.
Fixes #20569
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d85c7dcb7c457efc23b20ac8f4e4ae88bae5b050" style="color: #1068bf; text-decoration: none;">d85c7dcb</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-04-01T11:17:56+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Keep track of promotion ticks in HsOpTy
This patch adds a PromotionFlag field to HsOpTy, which is used
in pretty-printing and when determining whether to emit warnings
with -fwarn-unticked-promoted-constructors.
This allows us to correctly report tick-related warnings for things
like:
type A = Int : '[]
type B = [Int, Bool]
Updates haddock submodule
Fixes #19984
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/32070e6c2e1b4b7c32530a9566fe14543791f9a6" style="color: #1068bf; text-decoration: none;">32070e6c</a></strong>
<div>
<span>by Jakob Bruenker</span>
<i>at 2022-04-01T20:31:08+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Implement \cases (Proposal 302)
This commit implements proposal 302: \cases - Multi-way lambda
expressions.
This adds a new expression heralded by \cases, which works exactly like
\case, but can match multiple apats instead of a single pat.
Updates submodule haddock to support the ITlcases token.
Closes #20768
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c6f77f3912a9178cf839a14c3d6ed590820d18ed" style="color: #1068bf; text-decoration: none;">c6f77f39</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-04-01T20:33:05+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add a regression test for #21323
This bug was fixed at some point between GHC 9.0 and GHC 9.2;
this patch simply adds a regression test.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3596684e704fb4edc453ba0ae0c6c296c2812fbf" style="color: #1068bf; text-decoration: none;">3596684e</a></strong>
<div>
<span>by Jakob Bruenker</span>
<i>at 2022-04-01T20:33:05+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix error when using empty case in arrow notation
It was previously not possible to use -XEmptyCase in Arrow notation,
since GHC would print "Exception: foldb of empty list".
This is now fixed.
Closes #21301
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9a325b59aeba2b52af1ab9e4ca0b1a8aafc82a54" style="color: #1068bf; text-decoration: none;">9a325b59</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-01T20:33:05+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>users-guide: Fix various markup issues
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/aefb1e6d15749dd318e98a326d9df34b26c38cbd" style="color: #1068bf; text-decoration: none;">aefb1e6d</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-04-01T20:36:01+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Ensure implicit parameters are lifted
`tcExpr` typechecked implicit parameters by introducing a metavariable
of kind `TYPE kappa`, without enforcing that `kappa ~ LiftedRep`.
This patch instead creates a metavariable of kind `Type`.
Fixes #21327
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ed62dc66c6fff433349145b4cc41198effedfab8" style="color: #1068bf; text-decoration: none;">ed62dc66</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-05T11:44:51-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Disable cabal-install store caching on Windows
For reasons that remain a mystery, cabal-install seems to consistently
corrupt its cache on Windows. Disable caching for now.
Works around #21347.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5ece5c5a225d9919d87a6d760f4e583775793b8c" style="color: #1068bf; text-decoration: none;">5ece5c5a</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2022-04-06T13:00:51-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add /linters/*/dist-install/ to .gitignore
Fixes #21335.
[ci skip]
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/410c76eea7370f2d1143cf79aa524fcdec184f89" style="color: #1068bf; text-decoration: none;">410c76ee</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T13:01:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use static archives as an alternative to object merging
Unfortunately, `lld`'s COFF backend does not currently support object
merging. With ld.bfd having broken support for high image-load base
addresses, it's necessary to find an alternative. Here I introduce
support in the driver for generating static archives, which we use on
Windows instead of object merging.
Closes #21068.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/400666c81af024b6d16100aba88c2e8e78e8eef8" style="color: #1068bf; text-decoration: none;">400666c8</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T13:01:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker: Catch archives masquerading as object files
Check the file's header to catch static archive bearing the `.o`
extension, as may happen on Windows after the Clang refactoring.
See #21068
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/694d39f0391c58cd926887e274c227e99099a900" style="color: #1068bf; text-decoration: none;">694d39f0</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T13:01:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>driver: Make object merging optional
On Windows we don't have a linker which supports object joining (i.e.
the `-r` flag). Consequently, `-pgmlm` is now a `Maybe`.
See #21068.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/41fcb5cd756f52cd313d90a73f556fa5f3890818" style="color: #1068bf; text-decoration: none;">41fcb5cd</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T13:01:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Refactor handling of ar flags
Previously the setup was quite fragile as it had to assume which
arguments were file arguments and which were flags.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3ac80a8609418f9f1e9aa025b182fb3445f14428" style="color: #1068bf; text-decoration: none;">3ac80a86</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T13:01:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Produce ar archives with L modifier on Windows
Since object files may in fact be archive files, we must ensure that
their contents are merged rather than constructing an
archive-of-an-archive.
See #21068.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/295c35c5cfda67c11222f99fb338d3cac52abac1" style="color: #1068bf; text-decoration: none;">295c35c5</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T13:01:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add a Note describing lack of object merging on Windows
See #21068.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d2ae0a3a1a8e31e5d769f1aea95e85793043cb3a" style="color: #1068bf; text-decoration: none;">d2ae0a3a</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T13:01:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Build ar archives with -L when "joining" objects
Since there may be .o files which are in fact archives.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/babb47d263e0df0fa4e16da6bf86164a2a3e07ea" style="color: #1068bf; text-decoration: none;">babb47d2</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-04-06T13:02:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add warnings for file header pragmas that appear in the body of a module (#20385)
Once we are done parsing the header of a module to obtain the options, we
look through the rest of the tokens in order to determine if they contain any
misplaced file header pragmas that would usually be ignored, potentially
resulting in bad error messages.
The warnings are reported immediately so that later errors don't shadow
over potentially helpful warnings.
Metric Increase:
T13719
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3f31825bf3126073ab527d5e6661bf0aff4e8c66" style="color: #1068bf; text-decoration: none;">3f31825b</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T13:02:40-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/AdjustorPool: Generalize to allow arbitrary contexts
Unfortunately the i386 adjustor logic needs this.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9b645ee1a9fff64b66b36dc73d8809ff82025829" style="color: #1068bf; text-decoration: none;">9b645ee1</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T13:02:40-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>adjustors/i386: Use AdjustorPool
In !7511 (closed) I introduced a new allocator for adjustors,
AdjustorPool, which eliminates the address space fragmentation issues
which adjustors can introduce. In that work I focused on amd64 since
that was the platform where I observed issues.
However, in #21132 we noted that the size of adjustors is also a cause
of CI fragility on i386. In this MR I port i386 to use AdjustorPool.
Sadly the complexity of the i386 adjustor code does cause require a bit
of generalization which makes the code a bit more opaque but such is the
world.
Closes #21132.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c657a616d126dbbf1fadb8f195e569ee86061593" style="color: #1068bf; text-decoration: none;">c657a616</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T13:03:16-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Clean up flavour transformer definitions
Previously the `ipe` and `omit_pragmas` transformers were hackily
defined using the textual key-value syntax. Fix this.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9ce273b98b06823fc04946806c1e497f6b0c68fc" style="color: #1068bf; text-decoration: none;">9ce273b9</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T13:03:16-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Drop dead HACKAGE_INDEX_STATE variable
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/018453751b10cf26506d5076f08fc3a537973d9e" style="color: #1068bf; text-decoration: none;">01845375</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T13:03:16-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab/darwin: Factor out bindists
This makes it a bit easier to bump them.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c41c478eb9003eaa9fc8081a0039652448124f5d" style="color: #1068bf; text-decoration: none;">c41c478e</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T13:03:16-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix a few new warnings when booting with GHC 9.2.2
-Wuni-incomplete-patterns and apparent improvements in the pattern match
checker surfaced these.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6563cd2473a309b135eb8f950adf28b9f3d8e5c2" style="color: #1068bf; text-decoration: none;">6563cd24</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T13:03:16-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Bump bootstrap compiler to 9.2.2
This is necessary to build recent `text` commits.
Bumps Hackage index state for a hashable which builds with GHC 9.2.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a62e983e695b48e37ba5d867fe55a08c964813df" style="color: #1068bf; text-decoration: none;">a62e983e</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T13:03:16-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump text submodule to current `master`
Addresses #21295.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/88d610317a707eb33fe8f1a1a8ab6456279861f2" style="color: #1068bf; text-decoration: none;">88d61031</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2022-04-06T13:03:53-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Refactor OutputableBndrFlag instances
The matching on GhcPass introduced by 95275a5f25a is not necessary.
This patch reverts it to make the code simpler.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f601f00246ffe3e4fcd1fc333c1d41e0dc738fc1" style="color: #1068bf; text-decoration: none;">f601f002</a></strong>
<div>
<span>by GHC GitLab CI</span>
<i>at 2022-04-06T15:18:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Eliminate use of nested functions
This is a gcc-specific extension.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d4c5f29ceced0891dfad266ef1daa54975547068" style="color: #1068bf; text-decoration: none;">d4c5f29c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>driver: Drop hacks surrounding windres invocation
Drop hack for #1828, among others as they appear to be unnecessary when
using `llvm-windres`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6be2c5a7e9187fc14d51e1ec32ca235143bb0d8b" style="color: #1068bf; text-decoration: none;">6be2c5a7</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Windows/Clang: Build system adaptation
* Bump win32-tarballs to 0.7
* Move Windows toolchain autoconf logic into separate file
* Use clang and LLVM utilities as described in #21019
* Disable object merging as lld doesn't support -r
* Drop --oformat=pe-bigobj-x86-64 arguments from ld flags as LLD detects
that the output is large on its own.
* Drop gcc wrapper since Clang finds its root fine on its own.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c6fb7aff8ae15e0b208221727518fa38c29077f8" style="color: #1068bf; text-decoration: none;">c6fb7aff</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Test that we can build bigobj PE objects
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/79851c07a15c14364219af1f1751c9e547442bcc" style="color: #1068bf; text-decoration: none;">79851c07</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Drop -static-libgcc
This flag is not applicable when Clang is used.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1f8a82645f0f648fda1bd3afc5cb6b8ce8c78508" style="color: #1068bf; text-decoration: none;">1f8a8264</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Port T16514 to C
Previously this test was C++ which made it a bit of a portability
problem.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d7e650d13abe1296bed899563e5cb103db0938c6" style="color: #1068bf; text-decoration: none;">d7e650d1</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Mark Windows as a libc++ platform
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d7886c46cf7b86444b96389242818ec3e7a48948" style="color: #1068bf; text-decoration: none;">d7886c46</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Mark T9405 as fixed on Windows
I have not seen it fail since moving to clang.
Closes #12714.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4c3fbb4e3867d991e53813c80348a2b6bf9bdd86" style="color: #1068bf; text-decoration: none;">4c3fbb4e</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Mark FloatFnInverses as fixed
The new toolchain has fixed it.
Closes #15670.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/402c36ba403c26a3e3738405c5ad76c13d8c3ad2" style="color: #1068bf; text-decoration: none;">402c36ba</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Rework T13606 to avoid gcc dependence
Previously we used libgcc_s's import library in T13606. However, now that
we ship with clang we no longer have this library. Instead we now use gdi32.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9934ad54dcdc00a3a236fc8cb09b1a76e7aea81e" style="color: #1068bf; text-decoration: none;">9934ad54</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Clean up tests depending on C++ std lib
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/12fcdef29a4f1762f6ed7c1a90f30ccd573b6227" style="color: #1068bf; text-decoration: none;">12fcdef2</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Split T13366 into two tests
Split up the C and C++ uses since the latter is significantly more
platform-dependent.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3c08a1981e99a24295fb229a0c71defe1f100386" style="color: #1068bf; text-decoration: none;">3c08a198</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Fix mk-big-obj
I'm a bit unclear on how this previously worked as it attempted
to build an executable without defining `main`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7e97cc23e47d12c4050f257c7271976b5b846180" style="color: #1068bf; text-decoration: none;">7e97cc23</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Provide module definitions in T10955dyn
Otherwise the linker will export all symbols, including those provided
by the RTS, from the produced shared object. Consequently, attempting
to link against multiple objects simultaneously will cause the linker
to complain that RTS symbols are multiply defined. Avoid this
by limiting the DLL exports with a module definition file.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9a248afaa9196e6a267605893ab44e0abd562499" style="color: #1068bf; text-decoration: none;">9a248afa</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Mark test-defaulting-plugin as fragile on Windows
Currently llvm-ar does not handle long file paths, resulting in
occassional failures of these tests and #21293.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/39371aa4ca144541e60c09f85a1ddb2769443d1a" style="color: #1068bf; text-decoration: none;">39371aa4</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite/driver: Treat framework failures of fragile tests as non-fatal
Previously we would report framework failures of tests marked as fragile
as failures. Now we rather treat them as fragile test failures, which
are not fatal to the testsuite run. Noticed while investigating #21293.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a1e6661d5b14e7b8dafbaf7cd225b6495ee7f6a0" style="color: #1068bf; text-decoration: none;">a1e6661d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:32-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump Cabal submodule
- Disable support for library-for-ghci on Windows as described
in #21068.
- Teach Cabal to use `ar -L` when available
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f7b0f63c5f605c005b90d2c06d9e29893dba2dd1" style="color: #1068bf; text-decoration: none;">f7b0f63c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump process submodule
Fixes missing TEST_CC_OPTS in testsuite tests.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/109cee198886974ab5348c9a2ae5dd0275046b5e" style="color: #1068bf; text-decoration: none;">109cee19</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Disable ghci libraries when object merging is not available
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c22fba5c69b6ad68bdb38e4f058899a6b8e9619e" style="color: #1068bf; text-decoration: none;">c22fba5c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump bytestring submodule
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6e2744cc9fdf7b35e3053a16db52172f5b3791aa" style="color: #1068bf; text-decoration: none;">6e2744cc</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump text submodule
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3233374778d0deb0a99774319463d198d0ff0f65" style="color: #1068bf; text-decoration: none;">32333747</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Build wrappers using ghc rather than cc
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/59787ba55265e4632207e71f04a8d164d807791e" style="color: #1068bf; text-decoration: none;">59787ba5</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>linker/PEi386: More descriptive error message
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5e3c3c4f6b7b4bfa94e555b86165c296717f8dec" style="color: #1068bf; text-decoration: none;">5e3c3c4f</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:18:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Mark TH_spliceE5_prof as unbroken on Windows
It was previously failing due to #18721 and now passes with the new
toolchain.
Closes #18721.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9eb0a9d96942a3d17e5e2e02b5cd44c3ac513158" style="color: #1068bf; text-decoration: none;">9eb0a9d9</a></strong>
<div>
<span>by GHC GitLab CI</span>
<i>at 2022-04-06T15:23:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/PEi386: Move some debugging output to -DL
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ce8745952f99174ad9d3bdc7697fd086b47cdfb5" style="color: #1068bf; text-decoration: none;">ce874595</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:24:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>nativeGen/x86: Use %rip-relative addressing
On Windows with high-entropy ASLR we must use %rip-relative addressing
to avoid overflowing the signed 32-bit immediate size of x86-64.
Since %rip-relative addressing comes essentially for free and can make
linking significantly easier, we use it on all platforms.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/52deee64d222d2bada5bda1c1e6a77f505f98656" style="color: #1068bf; text-decoration: none;">52deee64</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:24:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Generate LEA for label expressions
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/105a0056afbe6226d849c586f2e76c726fe89c3f" style="color: #1068bf; text-decoration: none;">105a0056</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:24:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Refactor is32BitLit to take Platform rather than Bool
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ec4526b5cbb58b93457591e2595c5a66b2a101f9" style="color: #1068bf; text-decoration: none;">ec4526b5</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:24:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Don't assume that labels are 32-bit on Windows
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ffdbe457189a12d9eca6be2cfab977cd71411766" style="color: #1068bf; text-decoration: none;">ffdbe457</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:24:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>nativeGen: Note signed-extended nature of MOV
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bfb796974fa0bfcaa9fc18c5deedca6889e4bdf2" style="color: #1068bf; text-decoration: none;">bfb79697</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:30:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Move __USE_MINGW_ANSI_STDIO definition to PosixSource.h
It's easier to ensure that this is included first than Rts.h
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5ad143fd8c448d7af3950f71f53feac6cd33f956" style="color: #1068bf; text-decoration: none;">5ad143fd</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:30:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Fix various #include issues
This fixes various violations of the newly-added RTS includes linter.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a59a66a8163cbbfa49a14f3c91af322f906084ea" style="color: #1068bf; text-decoration: none;">a59a66a8</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T15:30:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Lint RTS #includes
Verifies two important properties of #includes in the RTS:
* That system headers don't appear inside of a `<BeginPrivate.h>` block
as this can hide system library symbols, resulting in very
hard-to-diagnose linker errors
* That no headers precede `Rts.h`, ensuring that __USE_MINGW_ANSI_STDIO
is set correctly before system headers are included.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/42bf7528559fb518092fef3902afb73af5de146e" style="color: #1068bf; text-decoration: none;">42bf7528</a></strong>
<div>
<span>by GHC GitLab CI</span>
<i>at 2022-04-06T16:25:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/PEi386: Fix memory leak
Previously we would leak the section information of the `.bss`
section.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d286a55caebca8a4e5e73bbfeeb766e333271a09" style="color: #1068bf; text-decoration: none;">d286a55c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T16:25:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker: Preserve information about symbol types
As noted in #20978, the linker would previously handle overflowed
relocations by creating a jump island. While this is fine in the case of
code symbols, it's very much not okay in the case of data symbols. To
fix this we must keep track of whether each symbol is code or data and
relocate them appropriately. This patch takes the first step in this
direction, adding a symbol type field to the linker's symbol table. It
doesn't yet change relocation behavior to take advantage of this
knowledge.
Fixes #20978.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e689e9d5d058dbe05890038c28abdf3301679d7b" style="color: #1068bf; text-decoration: none;">e689e9d5</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T16:25:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/PEi386: Fix relocation overflow behavior
This fixes handling of overflowed relocations on PEi386 targets:
* Refuse to create jump islands for relocations of data symbols
* Correctly handle the `__imp___acrt_iob_func` symbol, which is an new
type of symbol: `SYM_TYPE_INDIRECT_DATA`
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/655e7d8f968eeaabfc02329d7ac9361678364c06" style="color: #1068bf; text-decoration: none;">655e7d8f</a></strong>
<div>
<span>by GHC GitLab CI</span>
<i>at 2022-04-06T16:25:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Mark anything that might have an info table as data
Tables-next-to-code mandates that we treat symbols with info tables like
data since we cannot relocate them using a jump island.
See #20983.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7e8cc293702354bec350c4d3c784a70cd8f7ffe4" style="color: #1068bf; text-decoration: none;">7e8cc293</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T16:25:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/PEi386: Rework linker
This is a significant rework of the PEi386 linker, making the linker
compatible with high image base addresses. Specifically, we now use the
m32 allocator instead of `HeapAllocate`.
In addition I found a number of latent bugs in our handling of import
libraries and relocations. I've added quite a few comments describing
what I've learned about Windows import libraries while fixing these.
Thanks to Tamar Christina (@Phyx) for providing the address space search
logic, countless hours of help while debugging, and his boundless
Windows knowledge.
Co-Authored-By: Tamar Christina <tamar@zhox.com>
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ff625218d9d7c17f1c6117991d1d2a28f9e4497a" style="color: #1068bf; text-decoration: none;">ff625218</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T16:25:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/PEi386: Move allocateBytes to MMap.c
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f562b5cacae6a7ce8958fb5635856009f8833ea3" style="color: #1068bf; text-decoration: none;">f562b5ca</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T16:25:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/PEi386: Avoid accidentally-quadratic allocation cost
We now preserve the address that we last mapped, allowing us to resume
our search and avoiding quadratic allocation costs. This fixes the
runtime of T10296a, which allocates many adjustors.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3247b7dbc6eab81c9fc02fbc385b69dc129fcdc6" style="color: #1068bf; text-decoration: none;">3247b7db</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T16:25:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Move msvcrt dep out of base
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fa404335dd9ca45a75f9184f671eb5f9664ef1fa" style="color: #1068bf; text-decoration: none;">fa404335</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T16:25:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker: More descriptive debug output
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/140f338f83f3dda5f3198c791918214012842f21" style="color: #1068bf; text-decoration: none;">140f338f</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T16:25:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/PathUtils: Define pathprintf in terms of snwprintf on Windows
swprintf deviates from usual `snprintf` semantics in that it does not
guarantee reasonable behavior when the buffer is NULL (that is,
returning the number of bytes that would have been emitted).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/eb60565b30225b2a215c0ae168b899a257706877" style="color: #1068bf; text-decoration: none;">eb60565b</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T16:25:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker: Report archive member index
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/209fd61b32855aa3151e222dee1513ec1fa362d3" style="color: #1068bf; text-decoration: none;">209fd61b</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T16:25:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker: Split up object resolution and initialization
Previously the RTS linker would call initializers during the
"resolve" phase of linking. However, this is problematic in the
case of cyclic dependencies between objects. In particular, consider
the case where we have a situation where a static library
contains a set of recursive objects:
* object A has depends upon symbols in object B
* object B has an initializer that depends upon object A
* we try to load object A
The linker would previously:
1. start resolving object A
2. encounter the reference to object B, loading it resolve object B
3. run object B's initializer
4. the initializer will attempt to call into object A,
which hasn't been fully resolved (and therefore protected)
Fix this by moving constructor execution to a new linking
phase, which follows resolution.
Fix #21253.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8e8a1021c3cacd5c4736a93ffb53a1143d5077c4" style="color: #1068bf; text-decoration: none;">8e8a1021</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-06T16:25:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker/LoadArchive: Fix leaking file handle
Previously `isArchive` could leak a `FILE` handle if the `fread`
returned a short read.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/429ea5d9147a9d3bd2513b27a4064c1ca1be2090" style="color: #1068bf; text-decoration: none;">429ea5d9</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-04-07T07:55:52-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove Fun pattern from Typeable COMPLETE set
GHC merge request !963 improved warnings in the presence of
COMPLETE annotations. This allows the removal of the Fun pattern
from the complete set.
Doing so expectedly causes some redundant pattern match warnings,
in particular in GHC.Utils.Binary.Typeable and Data.Binary.Class
from the binary library; this commit addresses that.
Updates binary submodule
Fixes #20230
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/54b1882416558936d171d78749400b1c838b11b8" style="color: #1068bf; text-decoration: none;">54b18824</a></strong>
<div>
<span>by Alan Zimmerman</span>
<i>at 2022-04-07T07:56:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>EPA: handling of con_bndrs in mkGadtDecl
Get rid of unnnecessary case clause that always matched.
Closes #20558
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9c838429b01c5acdeccaebf2ef7786feb69d87fa" style="color: #1068bf; text-decoration: none;">9c838429</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-07T09:38:53-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Mark T10420 as broken on Windows
Due to #21322.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/50739d2b19cc6bb3bc9b2749ba1e1e164574f957" style="color: #1068bf; text-decoration: none;">50739d2b</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-07T09:42:42-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Refactor and fix printf attributes on clang
Clang on Windows does not understand the `gnu_printf` attribute; use
`printf` instead.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9eeaeca4e95d58f362737bceead0ae2e16bcbbbb" style="color: #1068bf; text-decoration: none;">9eeaeca4</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-07T09:42:42-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Add missing newline in error message
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fcef9a175f810e7bfccbae9bf9e79b2b95da17ab" style="color: #1068bf; text-decoration: none;">fcef9a17</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-07T09:42:42-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>configure: Make environ decl check more robust
Some platforms (e.g. Windows/clang64) declare `environ` in `<stdlib.h>`,
not `<unistd.h>`
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8162b4f329a15b011e2dff055548cb00bdb5c7a0" style="color: #1068bf; text-decoration: none;">8162b4f3</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-07T09:42:42-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Adjust RTS symbol table on Windows for ucrt
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/633280d7c192d12bf20cb00988f299a2787c8128" style="color: #1068bf; text-decoration: none;">633280d7</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-07T09:43:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Fix exit code of bounds checking tests on Windows
`abort` exits with 255, not 134, on Windows.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cab4dc013354e6bce5d104c882f08c4a8f32adea" style="color: #1068bf; text-decoration: none;">cab4dc01</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-07T09:43:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Update expected output from T5435 tests on Windows
I'll admit, I don't currently see *why* this output is reordered
but it is a fairly benign difference and I'm out of time to investigate.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/edf5134e8ca8e830998defb06ba40a26c0de2636" style="color: #1068bf; text-decoration: none;">edf5134e</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-07T09:43:35-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Mark T20918 as broken on Windows
Our toolchain on Windows doesn't currently have Windows support.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d0ddeff308aad29b270aded620e23fd726b682ea" style="color: #1068bf; text-decoration: none;">d0ddeff3</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-07T09:43:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Mark linker unloading tests as broken on Windows
Due to #20354.
We will need to investigate this prior the release.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5a86da2b04bc329ff6810bf7f2b6d03156b43ef3" style="color: #1068bf; text-decoration: none;">5a86da2b</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-07T09:43:43-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Mark T9405 as broken on Windows
Due to #21361.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4aa86dcfc5fbb5a08f28261817511378fcb5e3be" style="color: #1068bf; text-decoration: none;">4aa86dcf</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-07T09:44:18-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Merge branches 'wip/windows-high-codegen', 'wip/windows-high-linker', 'wip/windows-clang-2' and 'wip/lint-rts-includes' into wip/windows-clang-join
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7206f05586b8190e26e392eaa9e74ab3cf9f9c60" style="color: #1068bf; text-decoration: none;">7206f055</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-07T09:45:07-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/CloneStack: Ensure that Rts.h is #included first
As is necessary on Windows.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9cfcb27b68e4b836bdfc92c900fc58a1ef646c0a" style="color: #1068bf; text-decoration: none;">9cfcb27b</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-07T09:45:07-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Fallback to ucrtbase not msvcrt
Since we have switched to Clang the toolchain now links against
ucrt rather than msvcrt.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d6665d8589bfc9869486fe57644f40a7704d95d0" style="color: #1068bf; text-decoration: none;">d6665d85</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-07T09:46:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Accept spurious perf test shifts on Windows
Metric Decrease:
T16875
Metric Increase:
T12707
T13379
T3294
T4801
T5321FD
T5321Fun
T783
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/83363c8b04837ee871a304cf85207cf79b299fb0" style="color: #1068bf; text-decoration: none;">83363c8b</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-04-07T12:57:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use prepareBinding in tryCastWorkerWrapper
As #21144 showed, tryCastWorkerWrapper was calling prepareRhs, and
then unconditionally floating the bindings, without the checks of
doFloatFromRhs. That led to floating an unlifted binding into
a Rec group.
This patch refactors prepareBinding to make these checks,
and do them uniformly across all calls. A nice improvement.
Other changes
* Instead of passing around a RecFlag and a TopLevelFlag; and sometimes
a (Maybe SimplCont) for join points, define a new Simplifier-specific
data type BindContext:
data BindContext = BC_Let TopLevelFlag RecFlag
| BC_Join SimplCont
and use it consistently.
* Kill off completeNonRecX by inlining it. It was only called in
one place.
* Add a wrapper simplImpRules for simplRules.
Compile time on T9630 drops by 4.7%; little else changes.
Metric Decrease:
T9630
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/02279a9c37deb34556834f706dbedc09258df753" style="color: #1068bf; text-decoration: none;">02279a9c</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2022-04-07T12:57:59-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Rename [] to List (#21294)
This patch implements a small part of GHC Proposal #475.
The key change is in GHC.Types:
- data [] a = [] | a : [a]
+ data List a = [] | a : List a
And the rest of the patch makes sure that List is pretty-printed as []
in various contexts.
Updates the haddock submodule.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/08480d2af91b933a2cfc1e2f97a132eab6bba254" style="color: #1068bf; text-decoration: none;">08480d2a</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-04-07T12:58:36-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix the free-var test in validDerivPred
The free-var test (now documented as (VD3)) was too narrow,
affecting only class predicates. #21302 demonstrated that
this wasn't enough!
Fixes #21302.
Co-authored-by: Ryan Scott <ryan.gl.scott@gmail.com>
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b3d6d23d11a19d5304538b4a55bd9b93f39a3e63" style="color: #1068bf; text-decoration: none;">b3d6d23d</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-04-07T12:59:12-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Properly explain where INLINE pragmas can appear.
Fixes #20676
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/23ef62b3e04ad834153269980dab4aac35a1fc7e" style="color: #1068bf; text-decoration: none;">23ef62b3</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-07T14:28:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Fix off-by-one in snwprintf usage
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b2dbcc7d28f11de92441fae3f20c6dc35498469f" style="color: #1068bf; text-decoration: none;">b2dbcc7d</a></strong>
<div>
<span>by Simon Jakobi</span>
<i>at 2022-04-08T03:00:38-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve seq[D]VarSet
Previously, the use of size[D]VarSet would involve a traversal of the
entire underlying IntMap. Since IntMaps are already spine-strict,
this is unnecessary.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/64ac20a72dfda1f6122d5c6dd5077796cd94f124" style="color: #1068bf; text-decoration: none;">64ac20a7</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-04-08T03:01:16-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add test for #21338
This no-skolem-info bug was fixed by the no-skolem-info patch
that will be part of GHC 9.4. This patch adds a regression test for
the issue reported in issue #21338.
Fixes #21338.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c32c4db60307b1f64369d2c63ccee331c9f33f11" style="color: #1068bf; text-decoration: none;">c32c4db6</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-08T03:01:53-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Move __USE_MINGW_ANSI_STDIO definition to PosixSource.h
It's easier to ensure that this is included first than Rts.h
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/56f85d62cf3d3effe1d64624898b779d764730fb" style="color: #1068bf; text-decoration: none;">56f85d62</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-08T03:01:53-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Fix various #include issues
This fixes various violations of the newly-added RTS includes linter.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cb1f31f5a1ad025c93f2a0b2ac57b8ec57c53ec7" style="color: #1068bf; text-decoration: none;">cb1f31f5</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-08T03:01:53-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Lint RTS #includes
Verifies two important properties of #includes in the RTS:
* That system headers don't appear inside of a `<BeginPrivate.h>` block
as this can hide system library symbols, resulting in very
hard-to-diagnose linker errors
* That no headers precede `Rts.h`, ensuring that __USE_MINGW_ANSI_STDIO
is set correctly before system headers are included.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c44432db254d2fc960d7864e080cb50e65dfa7c6" style="color: #1068bf; text-decoration: none;">c44432db</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-04-08T03:02:29-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fixes to 9.4 release notes
- Mention -Wforall-identifier
- Improve description of withDict
- Fix formatting
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/777365f18233d7ad032435ea2c93197cbb1d732e" style="color: #1068bf; text-decoration: none;">777365f1</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-04-08T09:43:35-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Correctly report SrcLoc of redundant constraints
We were accidentally dropping the source location information in
certain circumstances when reporting redundant constraints. This patch
makes sure that we set the TcLclEnv correctly before reporting the
warning.
Fixes #21315
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/af300a439fd360944cc9424b1676ef0b832922dc" style="color: #1068bf; text-decoration: none;">af300a43</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2022-04-08T09:44:11-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Reject illegal quote mark in data con declarations (#17865)
* Non-fatal (i.e. recoverable) parse error
* Checking infix constructors
* Extended the regression test
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/56254e6be108bf7d1993df269b3ae22a91903d45" style="color: #1068bf; text-decoration: none;">56254e6b</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-08T09:59:46-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Merge remote-tracking branch 'origin/master'
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6e2c3b7cba823cd9c315edb9c0c0edeece33ac30" style="color: #1068bf; text-decoration: none;">6e2c3b7c</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-08T13:55:15-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>driver: Introduce HomeModInfoCache abstraction
The HomeModInfoCache is a mutable cache which is updated incrementally
as the driver completes, this makes it robust to exceptions including
(SIGINT)
The interface for the cache is described by the `HomeMOdInfoCache` data
type:
```
data HomeModInfoCache = HomeModInfoCache { hmi_clearCache :: IO [HomeModInfo]
, hmi_addToCache :: HomeModInfo -> IO () }
```
The first operation clears the cache and returns its contents. This is
designed so it's harder to end up in situations where the cache is
retained throughout the execution of upsweep.
The second operation allows a module to be added to the cache.
The one slightly nasty part is in `interpretBuildPlan` where we have to
be careful to ensure that the cache writes happen:
1. In parralel
2. Before the executation continues after upsweep.
This requires some simple, localised MVar wrangling.
Fixes #20780
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/85f4a3c9c2635e71a9ab0b723774ec993fefb93d" style="color: #1068bf; text-decoration: none;">85f4a3c9</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-04-08T13:55:50-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add flag -fprof-manual which controls if GHC should honour manual cost centres.
This allows disabling of manual control centres in code a user doesn't control like
libraries.
Fixes #18867
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3415981c36631115bc1d7fb5b51abfcc2932a12f" style="color: #1068bf; text-decoration: none;">3415981c</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2022-04-08T13:56:27-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>HsUniToken for :: in GADT constructors (#19623)
One more step towards the new design of EPA.
Updates the haddock submodule.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/23f95735825cd2bfb8d84337cd502d2b2ff533c5" style="color: #1068bf; text-decoration: none;">23f95735</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-04-08T13:57:07-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Docs: datacon eta-expansion, rep-poly checks
The existing notes weren't very clear on how the eta-expansion of
data constructors that occurs in tcInferDataCon/dsConLike interacts
with the representation polymorphism invariants. So we explain with
a few more details how we ensure that the representation-polymorphic
lambdas introduced by tcInferDataCon/dsConLike don't end up causing
problems, by checking they are properly instantiated and then relying
on the simple optimiser to perform beta reduction.
A few additional changes:
- ConLikeTc just take type variables instead of binders, as we
never actually used the binders.
- Removed the FRRApp constructor of FRROrigin; it was no longer used
now that we use ExpectedFunTyOrigin.
- Adds a bit of documentation to the constructors
of ExpectedFunTyOrigin.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d448049040d8f7b9b75863b096d08d16d6810f96" style="color: #1068bf; text-decoration: none;">d4480490</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-08T13:57:43-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Replace "always" with "on_success" to stop build jobs running before hadrian-ghci has finished
See https://docs.gitlab.com/ee/ci/yaml/#when
* always means, always run not matter what
* on_success means, run if the dependencies have built successfully
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0736e949b71a0c2b5eb404aac7a5883dd52b7b5c" style="color: #1068bf; text-decoration: none;">0736e949</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2022-04-08T13:58:19-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Disallow (->) as a data constructor name (#16999)
The code was misusing isLexCon, which was never meant for validation.
In fact, its documentation states the following:
Use these functions to figure what kind of name a 'FastString'
represents; these functions do /not/ check that the identifier
is valid.
Ha! This sign can't stop me because I can't read.
The fix is to use okConOcc instead. The other checks (isTcOcc or
isDataOcc) seem superfluous, so I also removed those.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e58d5eeb90fb0c35ff08d8d9f752eab74fc9889e" style="color: #1068bf; text-decoration: none;">e58d5eeb</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-04-08T13:58:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Tiny documentation wibble
This commit
commit 83363c8b04837ee871a304cf85207cf79b299fb0
Author: Simon Peyton Jones <simon.peytonjones@gmail.com>
Date: Fri Mar 11 16:55:38 2022 +0000
Use prepareBinding in tryCastWorkerWrapper
refactored completeNonRecX away, but left a Note referring to it.
This MR fixes that Note.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4bb008393bc7cc851b86bd0e4460612f8d415a76" style="color: #1068bf; text-decoration: none;">4bb00839</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-09T07:40:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Fix nightly head.hackage pipelines
This also needs a corresponding commit to head.hackage, I also made the
job explicitly depend on the fedora33 job so that it isn't blocked by a
failing windows job, which causes docs-tarball to fail.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3c48e12a241d50c480ed4e68180a1886be649a35" style="color: #1068bf; text-decoration: none;">3c48e12a</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-09T07:40:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Remove doc-tarball dependency from perf and perf-nofib jobs
These don't depend on the contents of the tarball so we can run them
straight after the fedora33 job finishes.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/27362265e50b59aee9a0ae17560ce091f5501985" style="color: #1068bf; text-decoration: none;">27362265</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-09T07:41:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump deepseq to 1.4.7.0
Updates deepseq submodule
Fixes #20653
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dcf30da8ff3ddcea9db3369870039f1b2c5d7b2c" style="color: #1068bf; text-decoration: none;">dcf30da8</a></strong>
<div>
<span>by Joachim Breitner</span>
<i>at 2022-04-09T13:02:19-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Drop the app invariant
previously, GHC had the "let/app-invariant" which said that the RHS of a
let or the argument of an application must be of lifted type or ok for
speculation. We want this on let to freely float them around, and we
wanted that on app to freely convert between the two (e.g. in
beta-reduction or inlining).
However, the app invariant meant that simple code didn't stay simple and
this got in the way of rules matching. By removing the app invariant,
this thus fixes #20554.
The new invariant is now called "let-can-float invariant", which is
hopefully easier to guess its meaning correctly.
Dropping the app invariant means that everywhere where we effectively do
beta-reduction (in the two simplifiers, but also in `exprIsConApp_maybe`
and other innocent looking places) we now have to check if the argument
must be evaluated (unlifted and side-effecting), and analyses have to be
adjusted to the new semantics of `App`.
Also, `LetFloats` in the simplifier can now also carry such non-floating
bindings.
The fix for DmdAnal, refine by Sebastian, makes functions with unlifted
arguments strict in these arguments, which changes some signatures.
This causes some extra calls to `exprType` and `exprOkForSpeculation`,
so some perf benchmarks regress a bit (while others improve).
Metric Decrease:
T9020
Metric Increase:
LargeRecord
T12545
T15164
T16577
T18223
T5642
T9961
Co-authored-by: Sebastian Graf <sebastian.graf@kit.edu>
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6c6c537964c6dc9ed3e8c4a4be68b587a27a3f50" style="color: #1068bf; text-decoration: none;">6c6c5379</a></strong>
<div>
<span>by Philip Hazelden</span>
<i>at 2022-04-09T13:02:59-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add functions traceWith, traceShowWith, traceEventWith.
As discussed at
https://github.com/haskell/core-libraries-committee/issues/36
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8fafacf7bae432fe20a46265af497b8fb42cbd1c" style="color: #1068bf; text-decoration: none;">8fafacf7</a></strong>
<div>
<span>by Philip Hazelden</span>
<i>at 2022-04-09T13:02:59-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add tests for several trace functions.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/20bbf3ace6bda71b28154bec3e840e418440eac0" style="color: #1068bf; text-decoration: none;">20bbf3ac</a></strong>
<div>
<span>by Philip Hazelden</span>
<i>at 2022-04-09T13:02:59-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update changelog.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/47d18b0b387fbfe07e1b4fbda578a81a74ab0eeb" style="color: #1068bf; text-decoration: none;">47d18b0b</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-04-09T13:03:35-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add regression test for #19569
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5f8d6e65f3d8268c70d6a8434ba9df03087a22eb" style="color: #1068bf; text-decoration: none;">5f8d6e65</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-04-09T13:04:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix missing SymCo in pushCoercionIntoLambda
There was a missing SymCo in pushCoercionIntoLambda. Currently
this codepath is only used with rewrite rules, so this bug managed
to slip by, but trying to use pushCoercionIntoLambda in other contexts
revealed the bug.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/20eca489df8c3dae80a584dede8fea40728bde3b" style="color: #1068bf; text-decoration: none;">20eca489</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2022-04-09T13:04:50-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Refactor: simplify lexing of the dot
Before this patch, the lexer did a truly roundabout thing with the dot:
1. look up the varsym in reservedSymsFM and turn it into ITdot
2. under OverloadedRecordDot, turn it into ITvarsym
3. in varsym_(prefix|suffix|...) turn it into ITvarsym, ITdot, or
ITproj, depending on extensions and whitespace
Turns out, the last step is sufficient to handle the dot correctly.
This patch removes the first two steps.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5440f63ec4a584b8805a8ff49ba1bd26bc2c032d" style="color: #1068bf; text-decoration: none;">5440f63e</a></strong>
<div>
<span>by Hécate Moonlight</span>
<i>at 2022-04-12T11:11:06-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Document that DuplicateRecordFields doesn't tolerates ambiguous fields
Fix #19891
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0090ad7b8b436961fe1e225aae214d0ea1381c07" style="color: #1068bf; text-decoration: none;">0090ad7b</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-04-12T11:11:42-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Eta reduction based on evaluation context (#21261)
I completely rewrote our Notes surrounding eta-reduction. The new entry point is
`Note [Eta reduction makes sense]`.
Then I went on to extend the Simplifier to maintain an evaluation context in the
form of a `SubDemand` inside a `SimplCont`. That `SubDemand` is useful for doing
eta reduction according to `Note [Eta reduction based on evaluation context]`,
which describes how Demand analysis, Simplifier and `tryEtaReduce` interact to
facilitate eta reduction in more scenarios.
Thus we fix #21261.
ghc/alloc perf marginally improves (-0.0%). A medium-sized win is when compiling
T3064 (-3%). It seems that haddock improves by 0.6% to 1.0%, too.
Metric Decrease:
T3064
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4d2ee313f23a4454d12c9f94ff132f078dd64d31" style="color: #1068bf; text-decoration: none;">4d2ee313</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-04-12T17:54:57+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Specialising through specialised method calls (#19644)
In #19644, we discovered that the ClassOp/DFun rules from
Note [ClassOp/DFun selection] inhibit transitive specialisation in a scenario
like
```
class C a where m :: Show b => a -> b -> ...; n :: ...
instance C Int where m = ... -- $cm :: Show b => Int -> b -> ...
f :: forall a b. (C a, Show b) => ...
f $dC $dShow = ... m @a $dC @b $dShow ...
main = ... f @Int @Bool ...
```
After we specialise `f` for `Int`, we'll see `m @a $dC @b $dShow` in the body of
`$sf`. But before this patch, Specialise doesn't apply the ClassOp/DFun rule to
rewrite to a call of the instance method for `C Int`, e.g., `$cm @Bool $dShow`.
As a result, Specialise couldn't further specialise `$cm` for `Bool`.
There's a better example in `Note [Specialisation modulo dictionary selectors]`.
This patch enables proper Specialisation, as follows:
1. In the App case of `specExpr`, try to apply the CalssOp/DictSel rule on the
head of the application
2. Attach an unfolding to freshly-bound dictionary ids such as `$dC` and
`$dShow` in `bindAuxiliaryDict`
NB: Without (2), (1) would be pointless, because `lookupRule` wouldn't be able
to look into the RHS of `$dC` to see the DFun.
(2) triggered #21332, because the Specialiser floats around dictionaries without
accounting for them in the `SpecEnv`'s `InScopeSet`, triggering a panic when
rewriting dictionary unfoldings.
Fixes #19644 and #21332.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b06f4f470b6bbe296cc828f8698e9d55cca39d73" style="color: #1068bf; text-decoration: none;">b06f4f47</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-04-12T17:54:58+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Specialise: Check `typeDeterminesValue` before specialising on an interesting dictionary
I extracted the checks from `Note [Type determines value]` into its own
function, so that we share the logic properly. Then I made sure that we
actually call `typeDeterminesValue` everywhere we check for `interestingDict`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a42dbc55ad1aff242c0b6b2b22188a25d588c8bf" style="color: #1068bf; text-decoration: none;">a42dbc55</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-13T06:24:52-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Refine warning about defining rules in SAFE modules
This change makes it clear that it's the definition rather than any
usage which is a problem, and that rules defined in other modules will
still be used to do rewrites.
Fixes #20923
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/df893f6667b31946ae7995150a6a5920602f7b0b" style="color: #1068bf; text-decoration: none;">df893f66</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-04-14T08:18:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>StgLint: Lint constructor applications and strict workers for arity.
This will mean T9208 when run with lint will return a lint error instead
of resulting in a panic.
Fixes #21117
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/426ec4461c1723a8fe4be97404c7e6c10a10cee5" style="color: #1068bf; text-decoration: none;">426ec446</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-04-14T08:19:16-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Hadrian: use a set to keep track of ways
The order in which ways are provided doesn't matter,
so we use a data structure with the appropriate semantics to
represent ways.
Fixes #21378
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7c639b9a589f7e937f2343ae4bdfea2ba5b1f74b" style="color: #1068bf; text-decoration: none;">7c639b9a</a></strong>
<div>
<span>by Dylan Yudaken</span>
<i>at 2022-04-15T13:55:59-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Only enable PROF_SPIN in DEBUG
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/96b9e5ea93f7a70b6481182652e4433f53cd244b" style="color: #1068bf; text-decoration: none;">96b9e5ea</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-15T13:56:34-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Add test for #21390
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d8392f6a714b5646d43ed54eee0d028f714da717" style="color: #1068bf; text-decoration: none;">d8392f6a</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-15T13:56:34-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Ensure that the interpreter doesn't disregard tags
Previously the interpreter's handling of `RET_BCO` stack frames would
throw away the tag of the returned closure. This resulted in #21390.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/83c67f766be615d4db6f71f8af0cbb9b4c4917bb" style="color: #1068bf; text-decoration: none;">83c67f76</a></strong>
<div>
<span>by Alan Zimmerman</span>
<i>at 2022-04-20T11:49:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add -dkeep-comments flag to keep comments in the parser
This provides a way to set the Opt_KeepRawTokenStream from the command
line, allowing exact print annotation users to see exactly what is
produced for a given parsed file, when used in conjunction with
-ddump-parsed-ast
Discussed in #19706, but this commit does not close the issue.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a5ea65c981a70454dc56719f8566efa7ee184d3f" style="color: #1068bf; text-decoration: none;">a5ea65c9</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-04-20T11:50:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove LevityInfo
Every Id was storing a boolean whether it could be levity-polymorphic.
This information is no longer needed since representation-checking
has been moved to the typechecker.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/49bd758417fd539080469f2fc2a996ea6dc75d45" style="color: #1068bf; text-decoration: none;">49bd7584</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-04-20T11:50:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix a shadowing issue in StgUnarise.
For I assume performance reasons we don't record no-op replacements
during unarise. This lead to problems with code like this:
f = \(Eta_B0 :: VoidType) x1 x2 ->
... let foo = \(Eta_B0 :: LiftedType) -> g x y Eta_B0
in ...
Here we would record the outer Eta_B0 as void rep, but would not
shadow Eta_B0 inside `foo` because this arg is single-rep and so
doesn't need to replaced. But this means when looking at occurence
sites we would check the env and assume it's void rep based on the
entry we made for the (no longer in scope) outer `Eta_B0`.
Fixes #21396 and the ticket has a few more details.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0c02c9199c26bebde17cd0afd378802c6d622a88" style="color: #1068bf; text-decoration: none;">0c02c919</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-04-20T11:51:15-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix substitution in bindAuxiliaryDict
In GHC.Core.Opt.Specialise.bindAuxiliaryDict we were unnecessarily
calling `extendInScope` to bring into scope variables that were
/already/ in scope. Worse, GHC.Core.Subst.extendInScope strangely
deleted the newly-in-scope variables from the substitution -- and that
was fatal in #21391.
I removed the redundant calls to extendInScope.
More ambitiously, I changed GHC.Core.Subst.extendInScope (and cousins)
to stop deleting variables from the substitution. I even changed the
names of the function to extendSubstInScope (and cousins) and audited
all the calls to check that deleting from the substitution was wrong.
In fact there are very few such calls, and they are all about
introducing a fresh non-in-scope variable. These are "OutIds"; it is
utterly wrong to mess with the "InId" substitution.
I have not added a Note, because I'm deleting wrong code, and it'd be
distracting to document a bug.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0481a6af8d5d0279809bd14082d9f2d988da6df2" style="color: #1068bf; text-decoration: none;">0481a6af</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-04-21T11:06:06+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>[ci skip] Drop outdated TODO in RtsAPI.c
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1e062a8a220c2fb5d707c7e36c6532d0e16291e9" style="color: #1068bf; text-decoration: none;">1e062a8a</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-22T02:12:59-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Introduce ip_STACK_FRAME
While debugging it is very useful to be able to determine whether a
given info table is a stack frame or not. We have spare bits in the
closure flags array anyways, use one for this information.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/08a6a2ee078418099c8ae614f5755876de4e380a" style="color: #1068bf; text-decoration: none;">08a6a2ee</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-22T02:12:59-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Mark closureFlags array as const
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8f9b8282a294150810db272815f1a47287bf33b6" style="color: #1068bf; text-decoration: none;">8f9b8282</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-04-22T02:13:35-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Check for zero-bit types in sizeExpr
Fixes #20940
Metric Decrease:
T18698a
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fcf22883774fab6e77058d981a3f840fa663e3ac" style="color: #1068bf; text-decoration: none;">fcf22883</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-04-22T02:14:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Include the way string in the file name for dump files.
This can be disabled by `-fno-dump-with-ways` if not desired.
Finally we will be able to look at both profiled and non-profiled dumps
when compiling with dump flags and we compile in both ways.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/252394cefa746cb9eaf4fed4ea23d716eab20d1b" style="color: #1068bf; text-decoration: none;">252394ce</a></strong>
<div>
<span>by Bodigrim</span>
<i>at 2022-04-22T02:14:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve error messages from GHC.IO.Encoding.Failure
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/250f57c17f72ba11eda3655f553957f6f04c0399" style="color: #1068bf; text-decoration: none;">250f57c1</a></strong>
<div>
<span>by Bodigrim</span>
<i>at 2022-04-22T02:14:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update test baselines to match new error messages from GHC.IO.Encoding.Failure
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5ac9b32112facbf0630313c002f8c9b6ac1c986a" style="color: #1068bf; text-decoration: none;">5ac9b321</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-22T02:15:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>get-win32-tarballs: Drop i686 architecture
As of #18487 we no longer support 32-bit Windows.
Fixes #21372.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dd5fecb0e2990b192d92f4dfd7519ecb33164fad" style="color: #1068bf; text-decoration: none;">dd5fecb0</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-22T02:16:00-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Don't rely on xxx not being present in installation path
Previously Hadrian's installation makefile would assume that the string
`xxx` did not appear in the installation path. This would of course
break for some users.
Fixes #21402.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/09e98859be5304176d5c66b4a71d61bf381bcae5" style="color: #1068bf; text-decoration: none;">09e98859</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-22T02:16:35-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Ensure that GHC doesn't pick up environment files
Here we set GHC_ENVIRONMENT="-" to ensure that GHC invocations of tests
don't pick up a user's local package environment.
Fixes #21365.
Metric Decrease:
T10421
T12234
T12425
T13035
T16875
T9198
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/76bb8cb3fd0f376b6af4bff12c29cb4226c24a72" style="color: #1068bf; text-decoration: none;">76bb8cb3</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-22T02:17:11-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Enable -dlint in devel2 flavour
Previously only -dcore-lint was enabled.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f435d55fe969e739eb92bbb681069020d0622137" style="color: #1068bf; text-decoration: none;">f435d55f</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-04-22T08:00:18-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fixes to rubbish literals
* In CoreToStg, the application 'RUBBISH[rep] x' was simplified
to 'RUBBISH[rep]'. But it is possible that the result of the function
is represented differently than the function.
* In Unarise, 'LitRubbish (primRepToType prep)'
is incorrect: LitRubbish takes a RuntimeRep such as IntRep,
while primRepToType returns a type such as Any @(TYPE IntRep). Use
primRepToRuntimeRep instead.
This code is never run in the testsuite.
* In StgToByteCode, all rubbish literals were assumed to be boxed.
This code predates representation-polymorphic RubbishLit and I think
it was not updated.
I don't have a testcase for any of those issues, but the code looks
wrong.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/93c16b94ebff03c81c2285eb2b622dc62f9bca16" style="color: #1068bf; text-decoration: none;">93c16b94</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-04-22T08:00:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Relax "suppressing errors" assert in reportWanteds
The assertion in reportWanteds that we aren't suppressing all the
Wanted constraints was too strong: it might be the case that we are
inside an implication, and have already reported an unsolved Wanted
from outside the implication. It is possible that all Wanteds inside
the implication have been rewritten by the outer Wanted, so we shouldn't
throw an assertion failure in that case.
Fixes #21405
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/78ec692d9c8d6d138f68e179a7ca57784daa2342" style="color: #1068bf; text-decoration: none;">78ec692d</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-04-22T08:01:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Mention new MutableByteArray# wrapper in base changelog.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/56d7cb538fc486bdb92ec9c911e7ad04f5522b77" style="color: #1068bf; text-decoration: none;">56d7cb53</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-04-22T14:13:32-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>unlist announce
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1e4dcf230a50b00350e084ca43e9d098ff865b22" style="color: #1068bf; text-decoration: none;">1e4dcf23</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-04-22T14:14:12-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>decideMonoTyVars: account for CoVars in candidates
The "candidates" passed to decideMonoTyVars can contain coercion holes.
This is because we might well decide to quantify over some unsolved
equality constraints, as long as they are not definitely insoluble.
In that situation, decideMonoTyVars was passing a set of type variables
that was not closed over kinds to closeWrtFunDeps, which was tripping
up an assertion failure.
Fixes #21404
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2c541f99f5a83cee873b76b3bd46e4d617f5bcd7" style="color: #1068bf; text-decoration: none;">2c541f99</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-04-22T14:14:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve floated dicts in Specialise
Second fix to #21391. It turned out that we missed calling
bringFloatedDictsIntoScope when specialising imports, which
led to the same bug as before.
I refactored to move that call to a single place, in specCalls,
so we can't forget it.
This meant making `FloatedDictBinds` into its own type, pairing
the dictionary bindings themselves with the set of their binders.
Nicer this way.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0950e2c49c96465ee1e82a073a88f6fecd20ccde" style="color: #1068bf; text-decoration: none;">0950e2c4</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-25T10:18:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Ensure that --extra-lib-dirs are used
Previously we only took `extraLibDirs` and friends from the package
description, ignoring any contribution from the `LocalBuildInfo`. Fix
this.
Fixes #20566.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/53cc93ae3c9b939fff8407ee588dff89f7f92a12" style="color: #1068bf; text-decoration: none;">53cc93ae</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-25T10:18:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Drop redundant include directories
The package-specific include directories in
Settings.Builders.Common.cIncludeDirs are now redundant since they now
come from Cabal.
Closes #20566.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b2721819f391ab49871271283f32df54810c4387" style="color: #1068bf; text-decoration: none;">b2721819</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-25T10:18:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Clean up handling of libffi dependencies
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/18e5103f0f73570e31421e67e54f1693936f5efd" style="color: #1068bf; text-decoration: none;">18e5103f</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-25T10:18:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: More robust library way detection
Previously `test.mk` would try to determine whether the dynamic,
profiling, and vanilla library ways are available by searching for
`PrimOpWrappers.{,dyn_,p_}hi` in directory reported by `ghc-pkg field
ghc-prim library-dirs`. However, this is extremely fragile as
there is no guarantee that there is only one library directory. To
handle the case of multiple `library-dirs` correct we would
have to carry out the delicate task of tokenising the directory list (in
shell, no less).
Since this isn't a task that I am eager to solve, I have rather moved
the detection logic into the testsuite driver and instead perform a test
compilation in each of the ways. This should be more robust than the
previous approach.
I stumbled upon this while fixing #20579.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6c7a49139cf120a9bf9370ff472aa2839b4289c6" style="color: #1068bf; text-decoration: none;">6c7a4913</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-25T10:18:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Cabalify ghc-config
To ensure that the build benefits from Hadrian's usual logic for building
packages, avoiding #21409.
Closes #21409.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9af091f7ced3c76abf86b607d775c0746bfbabd7" style="color: #1068bf; text-decoration: none;">9af091f7</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-25T10:18:53-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Factor out built-in GC roots
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e7c4719d8990a58abd9073731a36922a843ba797" style="color: #1068bf; text-decoration: none;">e7c4719d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-25T10:18:54-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Ensure that wired-in exception closures aren't GC'd
As described in Note [Wired-in exceptions are not CAFfy], a small set of
built-in exception closures get special treatment in the code generator,
being declared as non-CAFfy despite potentially containing CAF
references. The original intent of this treatment for the RTS to then
add StablePtrs for each of the closures, ensuring that they are not
GC'd. However, this logic was not applied consistently and eventually
removed entirely in 951c1fb0. This lead to #21141.
Here we fix this bug by reintroducing the StablePtrs and document the
status quo.
Closes #21141.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9587726f53e51e429bdb8d8ca11f9de4d0902b77" style="color: #1068bf; text-decoration: none;">9587726f</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-25T10:18:54-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Add testcase for #21141
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cb71226f9537e542c6eadb90d8006e525c941605" style="color: #1068bf; text-decoration: none;">cb71226f</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-25T10:19:29-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Drop dead code in GHC.Linker.Static.linkBinary'
Previously we supported building statically-linked executables using
libtool. However, this was dropped in
91262e75dd1d80f8f28a3922934ec7e59290e28c in favor of using ar/ranlib
directly. Consequently we can drop this logic.
Fixes #18826.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9420d26b4b9dd42238d3ec2a92abe0552d37775e" style="color: #1068bf; text-decoration: none;">9420d26b</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-25T10:19:29-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Drop libtool path from settings file
GHC no longers uses libtool for linking and therefore this is no longer
necessary.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/41cf758b3f50554e0aa5240a5898b693758d9670" style="color: #1068bf; text-decoration: none;">41cf758b</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-25T10:19:29-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Drop remaining vestiges of libtool
Drop libtool logic from gen-dll, allowing us to drop the remaining logic
from the `configure` script.
Strangely, this appears to reliably reduce compiler allocations of
T16875 on Windows.
Closes #18826.
Metric Decrease:
T16875
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e09afbf2a998beea7783e3de5dce5dd3c6ff23db" style="color: #1068bf; text-decoration: none;">e09afbf2</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-25T10:20:05-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Refactor handling of dead threads' stacks
This fixes a bug that @JunmingZhao42 and I noticed while working on her
MMTK port. Specifically, in stg_stop_thread we used stg_enter_info as a
sentinel at the tail of a stack after a thread has completed. However,
stg_enter_info expects to have a two-field payload, which we do not
push. Consequently, if the GC ends up somehow the stack it will attempt
to interpret data past the end of the stack as the frame's fields,
resulting in unsound behavior.
To fix this I eliminate this hacky use of `stg_stop_thread` and instead
introduce a new stack frame type, `stg_dead_thread_info`. Not only does
this eliminate the potential for the previously mentioned memory
unsoundness but it also more clearly captures the intended structure of
the dead threads' stacks.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e76705cf9548ada18020b14cb049aece8660f749" style="color: #1068bf; text-decoration: none;">e76705cf</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-25T10:20:05-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Improve documentation of closure types
Also drops the unused TREC_COMMITTED transaction state.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f2c08124b30eb87482dc0ed1d7199aa58950e309" style="color: #1068bf; text-decoration: none;">f2c08124</a></strong>
<div>
<span>by Bodigrim</span>
<i>at 2022-04-25T10:20:44-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Document behaviour of RULES with KnownNat
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/360dc2bc2de3ddcb9c77ce85db7f257d95d9ce56" style="color: #1068bf; text-decoration: none;">360dc2bc</a></strong>
<div>
<span>by Li-yao Xia</span>
<i>at 2022-04-25T19:13:06+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix rendering of liftA haddock
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/16df6058cd234b81b3e4a86e986f1598b45e1cd1" style="color: #1068bf; text-decoration: none;">16df6058</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-27T10:02:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Report minimum and maximum stat changes
As suggested in #20733.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e39cab6256706e23d1e16177913dae190fe32e4f" style="color: #1068bf; text-decoration: none;">e39cab62</a></strong>
<div>
<span>by Fabian Thorand</span>
<i>at 2022-04-27T10:03:03-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Defer freeing of mega block groups
Solves the quadratic worst case performance of freeing megablocks that
was described in issue #19897.
During GC runs, we now keep a secondary free list for megablocks that is
neither sorted, nor coalesced. That way, free becomes an O(1) operation
at the expense of not being able to reuse memory for larger allocations.
At the end of a GC run, the secondary free list is sorted and then
merged into the actual free list in a single pass.
That way, our worst case performance is O(n log(n)) rather than O(n^2).
We postulate that temporarily losing coalescense during a single GC run
won't have any adverse effects in practice because:
- We would need to release enough memory during the GC, and then after
that (but within the same GC run) allocate a megablock group of more
than one megablock. This seems unlikely, as large objects are not
copied during GC, and so we shouldn't need such large allocations
during a GC run.
- Allocations of megablock groups of more than one megablock are rare.
They only happen when a single heap object is large enough to require
that amount of space. Any allocation areas that are supposed to hold
more than one heap object cannot use megablock groups, because only
the first megablock of a megablock group has valid `bdescr`s. Thus,
heap object can only start in the first megablock of a group, not in
later ones.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5de6be0c9120550aaa15534d0a1466018eff137a" style="color: #1068bf; text-decoration: none;">5de6be0c</a></strong>
<div>
<span>by Fabian Thorand</span>
<i>at 2022-04-27T10:03:03-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add note about inefficiency in returnMemoryToOS
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8bef471aaaf3cf40d68786f06b2b9f65d3d851e7" style="color: #1068bf; text-decoration: none;">8bef471a</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-04-27T10:03:43-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Ensure that Any is Boxed in FFI imports/exports
We should only accept the type `Any` in foreign import/export
declarations when it has type `Type` or `UnliftedType`.
This patch adds a kind check, and a special error message triggered by
occurrences of `Any` in foreign import/export declarations at other
kinds.
Fixes #21305
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ba3d4e1c43e6772f11f9a7105ef4bf3be8efb2df" style="color: #1068bf; text-decoration: none;">ba3d4e1c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-27T10:04:19-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Basic response file support
Here we introduce support into our command-line parsing infrastructure
and driver for handling gnu-style response file arguments,
typically used to work around platform command-line length limitations.
Fixes #16476.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3b6061be6bf89f653147a010193d7701d3e6182c" style="color: #1068bf; text-decoration: none;">3b6061be</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-27T10:04:19-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Add test for #16476
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/75bf1337e6623286b3cbf1a1c42dd083c50359d3" style="color: #1068bf; text-decoration: none;">75bf1337</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-27T10:04:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Fix cabal-reinstall job
It's quite nice we can do this by mostly deleting code
Fixes #21373
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2c00d9048873f3d6d7e188dd1ef7f670a83a5c94" style="color: #1068bf; text-decoration: none;">2c00d904</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-27T10:04:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Add test to check that release jobs have profiled libs
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/50d78d3bad4fda94ca32fd484578543b03aa0a6c" style="color: #1068bf; text-decoration: none;">50d78d3b</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-27T10:04:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Explicitly handle failures in test_hadrian
We also disable the stage1 testing which is broken.
Related to #21072
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2dcdf091960d3b8bafc23d0ab0e0be8aa6871d8b" style="color: #1068bf; text-decoration: none;">2dcdf091</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-27T10:04:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Fix shell command
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/55c84123fd9af420de1600309a6fbe73f1975094" style="color: #1068bf; text-decoration: none;">55c84123</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-27T10:04:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>bootstrap: Add bootstrapping files for ghc-9_2_2
Fixes #21373
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c7ee0be6bc1573b024f425dcf5fe6d91389e8185" style="color: #1068bf; text-decoration: none;">c7ee0be6</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-27T10:04:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Add linting job which checks authors are not GHC CI
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/23aad124ff76ad4bb2ba697d4d1e306e7cc595ac" style="color: #1068bf; text-decoration: none;">23aad124</a></strong>
<div>
<span>by Adam Sandberg Ericsson</span>
<i>at 2022-04-27T10:05:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: state explicitly what evacuate and scavange mean in the copying gc
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/318e0005b5a3a522854ced7162f3eee95f964bd9" style="color: #1068bf; text-decoration: none;">318e0005</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-27T10:06:07-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/eventlog: Don't attempt to flush if there is no writer
If the user has not configured a writer then there is nothing to flush.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ee11d04363ed8aa1d73a0cda16076a39e668d163" style="color: #1068bf; text-decoration: none;">ee11d043</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-27T10:06:07-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Enable eventlog support in all ways by default
Here we deprecate the eventlogging RTS ways and instead enable eventlog
support in the remaining ways. This simplifies packaging and reduces GHC
compilation times (as we can eliminate two whole compilations of the RTS)
while simplifying the end-user story. The trade-off is a small increase
in binary sizes in the case that the user does not want eventlogging
support, but we think that this is a fine trade-off.
This also revealed a latent RTS bug: some files which included `Cmm.h`
also assumed that it defined various macros which were in fact defined
by `Config.h`, which `Cmm.h` did not include. Fixing this in turn
revealed that `StgMiscClosures.cmm` failed to import various spinlock
statistics counters, as evidenced by the failed unregisterised build.
Closes #18948.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a2e5ab705dada18a88d8594b299c9950da50adb0" style="color: #1068bf; text-decoration: none;">a2e5ab70</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-04-27T10:06:43-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Change `-dsuppress-ticks` to only suppress non-code ticks.
This means cost centres and coverage ticks will still be present in
output. Makes using -dsuppress-all more convenient when looking at
profiled builds.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ec9d7e04d0d6730fe63bdce3eb824f8f35fb0d7b" style="color: #1068bf; text-decoration: none;">ec9d7e04</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-27T10:07:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump text submodule.
This should fix #21352
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c3105be4bbfeb5005d8c585b5a3f91a4c3ee5b4b" style="color: #1068bf; text-decoration: none;">c3105be4</a></strong>
<div>
<span>by Bodigrim</span>
<i>at 2022-04-27T10:08:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Documentation for setLocaleEncoding
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f618fd308b8db016009254aa8bbeb935d9d30e6" style="color: #1068bf; text-decoration: none;">7f618fd3</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-04-27T10:08:40-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update docs for change to type-checking plugins
There was no mention of the changes to type-checking plugins
in the 9.4.1 notes, and the extending_ghc documentation contained
a reference to an outdated type.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4419dd3afe2de8b24d2dd10fe6b4c7370b861d6d" style="color: #1068bf; text-decoration: none;">4419dd3a</a></strong>
<div>
<span>by Adam Sandberg Ericsson</span>
<i>at 2022-04-27T10:09:18-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: add some more documentation to StgWeak closure type
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5a7f0deee64f32777db8b87b056b4e9ba154093f" style="color: #1068bf; text-decoration: none;">5a7f0dee</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-27T10:09:54-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Give Cmm files fake ModuleNames which include full filepath
This fixes the initialisation functions when using -prof or
-finfo-table-map.
Fixes #21370
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/81cf52bb301592ff3d043d03eb9a0d547891a3e1" style="color: #1068bf; text-decoration: none;">81cf52bb</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-04-27T10:10:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Mark GHC.Prim.PtrEq as Unsafe
This module exports unsafe pointer equality operations,
so we accordingly mark it as Unsafe.
Fixes #21433
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f6a8185d741adec8b0cc89749bc660128eca57fe" style="color: #1068bf; text-decoration: none;">f6a8185d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-28T09:10:31+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Add performance test for #14766
This distills the essence of the Sigs.hs program found in the ticket.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c7a3dc292a7ee7d1639955b6343b0d3c755c7248" style="color: #1068bf; text-decoration: none;">c7a3dc29</a></strong>
<div>
<span>by Douglas Wilson</span>
<i>at 2022-04-28T18:54:44-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Add Monoid instance to Way
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/654bafea5bd4a1ce82af440c90f5fa38ac532503" style="color: #1068bf; text-decoration: none;">654bafea</a></strong>
<div>
<span>by Douglas Wilson</span>
<i>at 2022-04-28T18:54:44-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Enrich flavours to build profiled/debugged/threaded ghcs per stage
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4ad559c8142e52f4a97076c813471a2848ed4e0f" style="color: #1068bf; text-decoration: none;">4ad559c8</a></strong>
<div>
<span>by Douglas Wilson</span>
<i>at 2022-04-28T18:54:44-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: add debug_ghc and debug_stage1_ghc flavour transformers
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f9728fdbe58fd8d8ccabdf7a9fecff83456dd0f8" style="color: #1068bf; text-decoration: none;">f9728fdb</a></strong>
<div>
<span>by Douglas Wilson</span>
<i>at 2022-04-28T18:54:44-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Don't pass -rtsopts when building libraries
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/769279e65a67ae67bd707152f82af6b1b1bbf133" style="color: #1068bf; text-decoration: none;">769279e6</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-28T18:54:44-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Fix calculation about whether to pass -dynamic to compiler
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/da8ae7f273fcbb57ab5630aa1160c586e64fc0ed" style="color: #1068bf; text-decoration: none;">da8ae7f2</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-28T18:55:20-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Clean up flavour transformer definitions
Previously the `ipe` and `omit_pragmas` transformers were hackily
defined using the textual key-value syntax. Fix this.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6130518409cd44de620489a2981fd3075dfb94a1" style="color: #1068bf; text-decoration: none;">61305184</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-28T18:55:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump process submodule
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a8c993910ea79264775105a09ad6c80fb52400db" style="color: #1068bf; text-decoration: none;">a8c99391</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-04-28T18:56:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix unification of ConcreteTvs, removing IsRefl#
This patch fixes the unification of concrete type variables.
The subtlety was that unifying concrete metavariables is more subtle
than other metavariables, as decomposition is possible. See the Note
[Unifying concrete metavariables], which explains how we unify a
concrete type variable with a type 'ty' by concretising 'ty', using
the function 'GHC.Tc.Utils.Concrete.concretise'.
This can be used to perform an eager syntactic check for concreteness,
allowing us to remove the IsRefl# special predicate. Instead of emitting
two constraints `rr ~# concrete_tv` and `IsRefl# rr concrete_tv`, we
instead concretise 'rr'. If this succeeds we can fill 'concrete_tv',
and otherwise we directly emit an error message to the typechecker
environment instead of deferring. We still need the error message
to be passed on (instead of directly thrown), as we might benefit from
further unification in which case we will need to zonk the stored types.
To achieve this, we change the 'wc_holes' field of 'WantedConstraints'
to 'wc_errors', which stores general delayed errors. For the moement,
a delayed error is either a hole, or a syntactic equality error.
hasFixedRuntimeRep_MustBeRefl is now hasFixedRuntimeRep_syntactic, and
hasFixedRuntimeRep has been refactored to directly return the most
useful coercion for PHASE 2 of FixedRuntimeRep.
This patch also adds a field ir_frr to the InferResult datatype,
holding a value of type Maybe FRROrigin. When this value is not
Nothing, this means that we must fill the ir_ref field with a type
which has a fixed RuntimeRep.
When it comes time to fill such an ExpType, we ensure that the type
has a fixed RuntimeRep by performing a representation-polymorphism
check with the given FRROrigin
This is similar to what we already do to ensure we fill an Infer
ExpType with a type of the correct TcLevel.
This allows us to properly perform representation-polymorphism checks
on 'Infer' 'ExpTypes'.
The fillInferResult function had to be moved to GHC.Tc.Utils.Unify
to avoid a cyclic import now that it calls hasFixedRuntimeRep.
This patch also changes the code in matchExpectedFunTys to make use
of the coercions, which is now possible thanks to the previous change.
This implements PHASE 2 of FixedRuntimeRep in some situations.
For example, the test cases T13105 and T17536b are now both accepted.
Fixes #21239 and #21325
-------------------------
Metric Decrease:
T18223
T5631
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/43bd897dd9fc41265ad5d5ce3eb6cf09b9224f90" style="color: #1068bf; text-decoration: none;">43bd897d</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-04-28T18:57:13-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add INLINE pragmas for Enum helper methods
As #21343 showed, we need to be super-certain that the "helper
methods" for Enum instances are actually inlined or specialised.
I also tripped over this when I discovered that numericEnumFromTo
and friends had no pragmas at all, so their performance was very
fragile. If they weren't inlined, all bets were off. So I've added
INLINE pragmas for them too.
See new Note [Inline Enum method helpers] in GHC.Enum.
I also expanded Note [Checking for INLINE loop breakers] in
GHC.Core.Lint to explain why an INLINE function might temporarily
be a loop breaker -- this was the initial bug report in #21343.
Strangely we get a 16% runtime allocation decrease in
perf/should_run/T15185, but only on i386. Since it moves in the right
direction I'm disinclined to investigate, so I'll accept it.
Metric Decrease:
T15185
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ca1434e318872a2a3e4fab530423d2fc99254709" style="color: #1068bf; text-decoration: none;">ca1434e3</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-28T18:57:49-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>configure: Bump GHC version to 9.5
Bumps haddock submodule.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/292e39713e2e17ca902e575d6a41a6f95ee444b2" style="color: #1068bf; text-decoration: none;">292e3971</a></strong>
<div>
<span>by Teo Camarasu</span>
<i>at 2022-04-28T18:58:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>add since annotation for GHC.Stack.CCS.whereFrom
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/905206d67854edbc89978bd554724f57dc8553c2" style="color: #1068bf; text-decoration: none;">905206d6</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2022-04-28T22:19:34-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>winio: add support to iserv.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d182897e738ae1fb594ddc88cc27f607266ef5d1" style="color: #1068bf; text-decoration: none;">d182897e</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2022-04-28T22:19:34-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove unused line</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/22cf46980ad9b57eb428e7be045a1bc198b6380d" style="color: #1068bf; text-decoration: none;">22cf4698</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-28T22:20:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Revert "rts: Refactor handling of dead threads' stacks"
This reverts commit e09afbf2a998beea7783e3de5dce5dd3c6ff23db.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8ed571353c0d6d7e7039686809ea95309bfb32d4" style="color: #1068bf; text-decoration: none;">8ed57135</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-29T04:11:29-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Provide efficient unionMG function for combining two module graphs.
This function is used by API clients (hls).
This supercedes !6922
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0235ff02285c2265e478b9056e9536f15745f4c9" style="color: #1068bf; text-decoration: none;">0235ff02</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-29T04:12:05-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump bytestring submodule
Update to current `master`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0198841877f6f04269d6050892b98b5c3807ce4c" style="color: #1068bf; text-decoration: none;">01988418</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-29T04:12:05-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Normalise package versions in UnusedPackages test
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/724d0dc04645b21865bcd1877b7cc77e9a3fe9b2" style="color: #1068bf; text-decoration: none;">724d0dc0</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-29T08:59:42+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Deduplicate ways correctly
This was leading to a bug where we would run a profasm test twice which
led to invalid junit.xml which meant the test results database was not
being populated for the fedora33-perf job.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5630dde68185f96da026a4e0c722fe6631633299" style="color: #1068bf; text-decoration: none;">5630dde6</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-29T13:06:20-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Refactor handling of dead threads' stacks
This fixes a bug that @JunmingZhao42 and I noticed while working on her
MMTK port. Specifically, in stg_stop_thread we used stg_enter_info as a
sentinel at the tail of a stack after a thread has completed. However,
stg_enter_info expects to have a two-field payload, which we do not
push. Consequently, if the GC ends up somehow the stack it will attempt
to interpret data past the end of the stack as the frame's fields,
resulting in unsound behavior.
To fix this I eliminate this hacky use of `stg_stop_thread` and instead
introduce a new stack frame type, `stg_dead_thread_info`. Not only does
this eliminate the potential for the previously mentioned memory
unsoundness but it also more clearly captures the intended structure of
the dead threads' stacks.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0cdef80783b95ea2d2a49c5a9ee4ec06cde3958e" style="color: #1068bf; text-decoration: none;">0cdef807</a></strong>
<div>
<span>by parsonsmatt</span>
<i>at 2022-04-30T16:51:12-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add a note about instance visibility across component boundaries
In principle, the *visible* instances are
* all instances defined in a prior top-level declaration group
(see docs on `newDeclarationGroup`), or
* all instances defined in any module transitively imported by the
module being compiled
However, actually searching all modules transitively below the one being
compiled is unreasonably expensive, so `reifyInstances` will report only the
instance for modules that GHC has had some cause to visit during this
compilation. This is a shortcoming: `reifyInstances` might fail to report
instances for a type that is otherwise unusued, or instances defined in a
different component. You can work around this shortcoming by explicitly importing the modules
whose instances you want to be visible. GHC issue #20529
has some discussion around this.
Fixes #20529
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e2dd884aa9ffcac5b4bf0d8c826d07ffd18e5d6e" style="color: #1068bf; text-decoration: none;">e2dd884a</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2022-04-30T16:51:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make mkFunCo take AnonArgFlags into account
Previously, whenever `mkFunCo` would produce reflexive coercions, it would
use `mkVisFunTy` to produce the kind of the coercion. However, `mkFunCo` is
also used to produce coercions between types of the form `ty1 => ty2` in
certain places. This has the unfortunate side effect of causing the type of
the coercion to appear as `ty1 -> ty2` in certain error messages, as spotted
in #21328.
This patch address this by changing replacing the use of `mkVisFunTy` with
`mkFunctionType` in `mkFunCo`. `mkFunctionType` checks the kind of `ty1` and
makes the function arrow `=>` instead of `->` if `ty1` has kind `Constraint`,
so this should always produce the correct `AnonArgFlag`. As a result, this
patch fixes part (2) of #21328.
This is not the only possible way to fix #21328, as the discussion on that
issue lists some possible alternatives. Ultimately, it was concluded that the
alternatives would be difficult to maintain, and since we already use
`mkFunctionType` in `coercionLKind` and `coercionRKind`, using `mkFunctionType`
in `mkFunCo` is consistent with this choice. Moreover, using `mkFunctionType`
does not regress the performance of any test case we have in GHC's test suite.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/170da54f8a9100b3f9ef02389af5834180b0cd27" style="color: #1068bf; text-decoration: none;">170da54f</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-30T16:52:27-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Convert More Diagnostics (#20116)
Replaces uses of `TcRnUnknownMessage` with proper diagnostics
constructors.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/39edc7b42cf9ad54e19679a3b3494e3a166eaabe" style="color: #1068bf; text-decoration: none;">39edc7b4</a></strong>
<div>
<span>by Marius Ghita</span>
<i>at 2022-04-30T16:53:06-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update user guide example rewrite rules formatting
Change the rewrite rule examples to include a space between the
composition of `f` and `g` in the map rewrite rule examples.
Without this change, if the user has locally enabled the extension
OverloadedRecordDot the copied example will result in a compile time
error that `g` is not a field of `f`.
```
• Could not deduce (GHC.Records.HasField "g" (a -> b) (a1 -> b))
arising from selecting the field ‘g’
```
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2e951e48d9df131f55c2b939e283d4d38004937a" style="color: #1068bf; text-decoration: none;">2e951e48</a></strong>
<div>
<span>by Adam Sandberg Ericsson</span>
<i>at 2022-04-30T16:53:42-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ghc-boot: export typesynonyms from GHC.Utils.Encoding
This makes the Haddocks easier to understand.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d8cbc77e755f418ec40f15c7785c16e7a0309722" style="color: #1068bf; text-decoration: none;">d8cbc77e</a></strong>
<div>
<span>by Adam Sandberg Ericsson</span>
<i>at 2022-04-30T16:54:18-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>users guide: add categories to some flags
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d0f14fadd41f7bf032c48c3eceeaff3a85318426" style="color: #1068bf; text-decoration: none;">d0f14fad</a></strong>
<div>
<span>by Chris Martin</span>
<i>at 2022-04-30T16:54:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hacking guide: mention the core libraries committee
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/34b2820018ee05336be061aabea7d421bdd49ab9" style="color: #1068bf; text-decoration: none;">34b28200</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-30T16:55:32-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Revert "Make the specialiser handle polymorphic specialisation"
This reverts commit ef0135934fe32da5b5bb730dbce74262e23e72e8.
See ticket #21229
-------------------------
Metric Decrease:
T15164
Metric Increase:
T13056
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ee891c1e25028ca4fb73e89a59b6538b516deae8" style="color: #1068bf; text-decoration: none;">ee891c1e</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-30T16:55:32-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add test for T21229
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ab677cc856f7d479b69b8d73e54247fa053cf8d8" style="color: #1068bf; text-decoration: none;">ab677cc8</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-04-30T16:56:08-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Hadrian: Update README about the flavour/testsuite contract
There have been a number of tickets about non-tested flavours not
passing the testsuite.. this is expected and now noted in the
documentation. You use other flavours to run the testsuite at your own
risk.
Fixes #21418
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b57b5b929bbb287b8392bfd015bf6adccdfac875" style="color: #1068bf; text-decoration: none;">b57b5b92</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-04-30T16:56:44-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/m32: Fix assertion failure
This fixes an assertion failure in the m32 allocator due to the
imprecisely specified preconditions of `m32_allocator_push_filled_list`.
Specifically, the caller must ensure that the page type is set to filled
prior to calling `m32_allocator_push_filled_list`.
While this issue did result in an assertion failure in the debug RTS,
the issue is in fact benign.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a7053a6c04496fa26a62bb3824ccc9664909a6ec" style="color: #1068bf; text-decoration: none;">a7053a6c</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-04-30T16:57:23-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Testsuite driver: don't crash on empty metrics
The testsuite driver crashed when trying to display minimum/maximum
performance changes when there are no metrics (i.e. there is
no baseline available). This patch fixes that.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/636f7c62b1c30d130d88d6ad0763d894a8513e8a" style="color: #1068bf; text-decoration: none;">636f7c62</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-05-01T22:21:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>StgLint: Check that functions are applied to compatible runtime reps
We use compatibleRep to compare reps, and avoid checking functions with
levity polymorphic types because of #21399.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/60071076d880c9ee189c93e0105a9b3d1ff87a3f" style="color: #1068bf; text-decoration: none;">60071076</a></strong>
<div>
<span>by Hécate Moonlight</span>
<i>at 2022-05-01T22:21:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add documentation to the ByteArray# primetype.
close #21417
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2b2e30203a125dc5bfe70f3df7b39787aaf62b1e" style="color: #1068bf; text-decoration: none;">2b2e3020</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-05-01T22:22:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>exprIsDeadEnd: Use isDeadEndAppSig to check if a function appliction is bottoming.
We used to check the divergence and that the number of arguments > arity.
But arity zero represents unknown arity so this was subtly broken for a long time!
We would check if the saturated function diverges, and if we applied >=arity arguments.
But for unknown arity functions any number of arguments is >=idArity.
This fixes #21440.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4eaf0f33c10b7e8fe544f848520df075fc69ef25" style="color: #1068bf; text-decoration: none;">4eaf0f33</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-05-01T22:23:11-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>typos</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fc58df907aac1177b1fd2ec43694fd492ce170da" style="color: #1068bf; text-decoration: none;">fc58df90</a></strong>
<div>
<span>by Niklas Hambüchen</span>
<i>at 2022-05-02T08:59:27+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>libraries/base: docs: Explain relationshipt between `finalizeForeignPtr` and `*Conc*` creation
Fixes https://gitlab.haskell.org/ghc/ghc/-/issues/21420
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3e400f204e2b88c501c734f2c4244910ffc0d5dc" style="color: #1068bf; text-decoration: none;">3e400f20</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-05-02T18:29:23-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove obsolete code in CoreToStg
Note [Nullary unboxed tuple] was removed in e9e61f18a548b70693f4.
This codepath is tested by T15696_3.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4a7809284354025d07221f0aeca10a7992d23677" style="color: #1068bf; text-decoration: none;">4a780928</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-05-02T18:29:24-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix several note references
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/15ffe2b02e927d9cc2cc0f97dddee38decea5f56" style="color: #1068bf; text-decoration: none;">15ffe2b0</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-05-03T20:11:51+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Assume at least one evaluation for nested SubDemands (#21081, #21133)
See the new `Note [SubDemand denotes at least one evaluation]`.
A demand `n :* sd` on a let binder `x=e` now means
> "`x` was evaluated `n` times and in any program trace it is evaluated, `e` is
> evaluated deeply in sub-demand `sd`."
The "any time it is evaluated" premise is what this patch adds. As a result,
we get better nested strictness. For example (T21081)
```hs
f :: (Bool, Bool) -> (Bool, Bool)
f pr = (case pr of (a,b) -> a /= b, True)
-- before: <MP(L,L)>
-- after: <MP(SL,SL)>
g :: Int -> (Bool, Bool)
g x = let y = let z = odd x in (z,z) in f y
```
The change in demand signature "before" to "after" allows us to case-bind `z`
here.
Similarly good things happen for the `sd` in call sub-demands `Cn(sd)`, which
allows for more eta-reduction (which is only sound with `-fno-pedantic-bottoms`,
albeit).
We also fix #21085, a surprising inconsistency with `Poly` to `Call` sub-demand
expansion.
In an attempt to fix a regression caused by less inlining due to eta-reduction
in T15426, I eta-expanded the definition of `elemIndex` and `elemIndices`, thus
fixing #21345 on the go.
The main point of this patch is that it fixes #21081 and #21133.
Annoyingly, I discovered that more precise demand signatures for join points can
transform a program into a lazier program if that join point gets floated to the
top-level, see #21392. There is no simple fix at the moment, but !5349 might.
Thus, we accept a ~5% regression in `MultiLayerModulesTH_OneShot`, where #21392
bites us in `addListToUniqDSet`. T21392 reliably reproduces the issue.
Surprisingly, ghc/alloc perf on Windows improves much more than on other jobs, by
0.4% in the geometric mean and by 2% in T16875.
Metric Increase:
MultiLayerModulesTH_OneShot
Metric Decrease:
T16875
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/948c7e40b29d3a9c71f2a968f90944319b1b03c2" style="color: #1068bf; text-decoration: none;">948c7e40</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-05-04T09:57:34-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CoreLint - When checking for levity polymorphism look through more ticks.
For expressions like `(scc<cc_name> primOp#) arg1` we should also look
at arg1 to determine if we call primOp# at a fixed runtime rep.
This is what corePrep already does but CoreLint didn't yet. This patch
will bring them in sync in this regard.
It also uses tickishFloatable in CorePrep instead of CorePrep having
it's own slightly differing definition of when a tick is floatable.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/85bc73bd8fab17ad80f925b45e8b4b059278ba6c" style="color: #1068bf; text-decoration: none;">85bc73bd</a></strong>
<div>
<span>by Alexis King</span>
<i>at 2022-05-04T09:58:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>genprimopcode: Support Unicode properly
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/063d485ebfb366165140465b8901d1666e642cd6" style="color: #1068bf; text-decoration: none;">063d485e</a></strong>
<div>
<span>by Alexis King</span>
<i>at 2022-05-04T09:58:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>genprimopcode: Replace LaTeX documentation syntax with Haddock
The LaTeX documentation generator does not seem to have been used for
quite some time, so the LaTeX-to-Haddock preprocessing step has become a
pointless complication that makes documenting the contents of GHC.Prim
needlessly difficult. This commit replaces the LaTeX syntax with the
Haddock it would have been converted into, anyway, though with an
additional distinction: it uses single quotes in places to instruct
Haddock to generate hyperlinks to bindings. This improves the quality of
the generated output.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d61f742876bdf2cd32e76f7bca389106ad99a316" style="color: #1068bf; text-decoration: none;">d61f7428</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-04T09:58:50-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/ghc.mk: Only build StgCRunAsm.S when it is needed
Previously the make build system unconditionally included StgCRunAsm.S
in the link, meaning that the RTS would require an execstack
unnecessarily.
Fixes #21478.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/934a90dd6a34d2d1100506795d5f76cd20e2c599" style="color: #1068bf; text-decoration: none;">934a90dd</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-05-04T16:15:34-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve error reporting in generated code
Our error reporting in generated code (via desugaring before
typechecking) only worked when the generated code was just a simple
call. This commit makes it work in nested cases.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/445d3657aaa0860e725c525c844326557d2f39d5" style="color: #1068bf; text-decoration: none;">445d3657</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-05-04T16:16:12-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Ensure Any is not levity-polymorphic in FFI
The previous patch forgot to account for a type such as
Any @(TYPE (BoxedRep l))
for a quantified levity variable l.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ddd2591c5ca395e39ea36855e5b7e0a3464b7ad8" style="color: #1068bf; text-decoration: none;">ddd2591c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-04T16:16:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update supported LLVM versions
Pull forward minimum version to match 9.2.
(cherry picked from commit c26faa54c5fbe902ccb74e79d87e3fa705e270d1)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f9698d7990f2e7e6f20eeb19b4c169126543c823" style="color: #1068bf; text-decoration: none;">f9698d79</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-04T16:16:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite/T7275: Use sed -r
Darwin requires the `-r` flag to be compatible with GNU sed.
(cherry picked from commit 512338c8feec96c38ef0cf799f3a01b77c967c56)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8635323b45b6379d329a2e0cc4c1f5d3d40bb7e7" style="color: #1068bf; text-decoration: none;">8635323b</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-04T16:16:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Use ld.lld on ARMv7/Linux
Due to #16177.
Also cleanup some code style issues.
(cherry picked from commit cc1c3861e2372f464bf9e3c9c4d4bd83f275a1a6)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4f6370c773b01b3164592aa224d25c69c3be9930" style="color: #1068bf; text-decoration: none;">4f6370c7</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-04T16:16:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Always preserve artifacts, even in failed jobs
(cherry picked from commit fd08b0c91ea3cab39184f1b1b1aafcd63ce6973f)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6f6627541cfa12651d7eca716ebf49848bccb425" style="color: #1068bf; text-decoration: none;">6f662754</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-04T16:16:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>configure: Make sphinx version check more robust
It appears that the version of sphinx shipped on CentOS 7
reports a version string of `Sphinx v1...`. Accept the `v`.
(cherry picked from commit a9197a292fd4b13308dc6664c01351c7239357ed)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0032dc383d67ff164d0cfbb717e10f1275547e4c" style="color: #1068bf; text-decoration: none;">0032dc38</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-04T16:16:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Don't run make job in release pipelines
(cherry picked from commit 16d6a8ff011f2194485387dcca1c00f8ddcdbdeb)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/27f9aab340ab9be8c2018e8f3c71c9c18337428b" style="color: #1068bf; text-decoration: none;">27f9aab3</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-04T16:16:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab/ci: Fix name of bootstrap compiler directory
Windows binary distributions built with Hadrian have a target platform
suffix in the name of their root directory. Teach `ci.sh` about this
fact.
(cherry picked from commit df5752f39671f6d04d8cd743003469ae5eb67235)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b528f0f6803054aaa272f5f289c533d4a0593854" style="color: #1068bf; text-decoration: none;">b528f0f6</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-05-05T09:05:43-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix several note references, part 2
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/691aacf688c3c8b83fb79256cffb5d9ce40fd359" style="color: #1068bf; text-decoration: none;">691aacf6</a></strong>
<div>
<span>by Adam Sandberg Ericsson</span>
<i>at 2022-05-05T09:06:19-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>adjustors: align comment about number of integer like arguments with implementation for Amd4+MinGW implementation
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f050557eba193f92d818de7c9fc261af595173d0" style="color: #1068bf; text-decoration: none;">f050557e</a></strong>
<div>
<span>by Simon Jakobi</span>
<i>at 2022-05-05T12:47:32-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove two uses of IntMap.size
IntMap.size is O(n). The new code should be slightly more efficient.
The transformation of GHC.CmmToAsm.CFG.calcFreqs.nodeCount can be
described formally as the transformation:
(\sum_{0}^{n-1} \sum_{0}^{k-1} i_nk) + n
==>
(\sum_{0}^{n-1} 1 + \sum_{0}^{k-1} i_nk)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7da90ae34bda878f201da040799498ca873b356b" style="color: #1068bf; text-decoration: none;">7da90ae3</a></strong>
<div>
<span>by Tom Ellis</span>
<i>at 2022-05-05T12:48:09-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Explain that 'fail s' should run in the monad itself
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/610d028348ca0aa2721d515961f14cb72416c17c" style="color: #1068bf; text-decoration: none;">610d0283</a></strong>
<div>
<span>by Matthew Craven</span>
<i>at 2022-05-05T12:48:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add a test for the bracketing in rules for (^)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/016f9ca683fc915d661b2c24321d3005a8929a47" style="color: #1068bf; text-decoration: none;">016f9ca6</a></strong>
<div>
<span>by Matthew Craven</span>
<i>at 2022-05-05T12:48:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix broken rules for (^) with known small powers
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9372aaab0c869036689b9ec112bfbfd7d9cf43bf" style="color: #1068bf; text-decoration: none;">9372aaab</a></strong>
<div>
<span>by Matthew Craven</span>
<i>at 2022-05-05T12:48:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Give the two T19569 tests different names
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/61901b32b7e680234c0f1173d96d124ecd74bbc5" style="color: #1068bf; text-decoration: none;">61901b32</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-05-05T12:49:23-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>SpecConstr: Properly create rules for call patterns representing partial applications
The main fix is that in addVoidWorkerArg we now add the argument to the front.
This fixes #21448.
-------------------------
Metric Decrease:
T16875
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/71278dc7f5d74350cddc0da42c627dc1abfa37b2" style="color: #1068bf; text-decoration: none;">71278dc7</a></strong>
<div>
<span>by Teo Camarasu</span>
<i>at 2022-05-05T12:50:03-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>add since annotations for instances of ByteArray
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/962ff90bae1ca336bfa0bf63eea30e33bd344384" style="color: #1068bf; text-decoration: none;">962ff90b</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-05-05T12:50:42-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Start 9.6.1-notes
Updates the documentation notes to start tracking changes for
the 9.6.1 release (instead of 9.4).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/aacb15a3d68216cac0729e15d708be2f13b0eae8" style="color: #1068bf; text-decoration: none;">aacb15a3</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-05T20:24:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Add job to check that jobs.yaml is up-to-date
There have been quite a few situations where jobs.yaml has been out of
date. It's better to add a CI job which checks that it's right.
We don't want to use a staged pipeline because it obfuscates the
structure of the pipeline.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/be7102e5a75a652b7c073360cc1c3766e8f984bf" style="color: #1068bf; text-decoration: none;">be7102e5</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-05T20:24:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Ensure that XMM registers are preserved on Win64
Previously we only preserved the bottom 64-bits of the callee-saved
128-bit XMM registers, in violation of the Win64 calling convention.
Fix this.
Fixes #21465.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/73b22ff196160036ac10b762bf3a363fa8a451ad" style="color: #1068bf; text-decoration: none;">73b22ff1</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-05T20:24:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Add test for #21465
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e2ae9518c0373db7a99058a09388043a66af80ad" style="color: #1068bf; text-decoration: none;">e2ae9518</a></strong>
<div>
<span>by Ziyang Liu</span>
<i>at 2022-05-06T19:22:22-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Allow `let` just before pure/return in ApplicativeDo
The following is currently rejected:
```haskell
-- F is an Applicative but not a Monad
x :: F (Int, Int)
x = do
a <- pure 0
let b = 1
pure (a, b)
```
This has bitten me multiple times. This MR contains a simple fix:
only allow a "let only" segment to be merged with the next (and not
the previous) segment. As a result, when the last one or more
statements before pure/return are `LetStmt`s, there will be one
more segment containing only those `LetStmt`s.
Note that if the `let` statement mentions a name bound previously, then
the program is still rejected, for example
```haskell
x = do
a <- pure 0
let b = a + 1
pure (a, b)
```
or the example in #18559. To support this would require a more
complex approach, but this is IME much less common than the
previous case.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0415449a6ef67ed8d6413683a3edabb23ff6ebe3" style="color: #1068bf; text-decoration: none;">0415449a</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-06T19:22:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>template-haskell: Fix representation of OPAQUE pragmas
There is a mis-match between the TH representation of OPAQUE pragmas and
GHC's internal representation due to how OPAQUE pragmas disallow phase
annotations. It seemed most in keeping to just fix the wired in name
issue by adding a special case to the desugaring of INLINE pragmas
rather than making TH/GHC agree with how the representation should look.
Fixes #21463
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4de887e28e18eb9876ec56e37a0f206521e62bf1" style="color: #1068bf; text-decoration: none;">4de887e2</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-05-06T19:23:34-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Comments only: Note [AppCtxt]
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6e69964d94392b5398a33fa65f3730805c6a7f93" style="color: #1068bf; text-decoration: none;">6e69964d</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-06T19:24:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix name of windows release bindist in doc-tarball job
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ced4689e2a049b6653f5ada3254dde684cb0c433" style="color: #1068bf; text-decoration: none;">ced4689e</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-06T19:24:46-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Generate source-tarball in release jobs
We need to distribute the source tarball so we should generate it in the
CI pipeline.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3c91de2109701d1d6d42da3838c4847f51135d4e" style="color: #1068bf; text-decoration: none;">3c91de21</a></strong>
<div>
<span>by Rob</span>
<i>at 2022-05-08T13:40:53+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Change Specialise to use OrdList.
Fixes #21362
Metric Decrease:
T16875
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/67072c31d8b6ce4f0de79fa52bc3e5cdd5a495c6" style="color: #1068bf; text-decoration: none;">67072c31</a></strong>
<div>
<span>by Simon Jakobi</span>
<i>at 2022-05-08T12:23:43-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Tweak GHC.CmmToAsm.CFG.delEdge
mapAdjust is more efficient than mapAlter.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/374554bb6b68fd8916cf2e95cb200b3a1390eb03" style="color: #1068bf; text-decoration: none;">374554bb</a></strong>
<div>
<span>by Teo Camarasu</span>
<i>at 2022-05-09T16:24:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Respect -po when heap profiling (#21446)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1ea414b6555fea246fc3ed772e39f3c2a0ccbba1" style="color: #1068bf; text-decoration: none;">1ea414b6</a></strong>
<div>
<span>by Teo Camarasu</span>
<i>at 2022-05-09T16:24:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>add test case for #21446
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c7902078617f711a2313e3c04ef4e52fdb0f2f09" style="color: #1068bf; text-decoration: none;">c7902078</a></strong>
<div>
<span>by Jens Petersen</span>
<i>at 2022-05-09T16:25:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>avoid hadrian/bindist/Makefile install_docs error when --docs=none
When docs are disabled the bindist does not have docs/ and hence docs-utils/ is not generated.
Here we just test that docs-utils exists before attempting to install prologue.txt and gen_contents_index
to avoid the error:
/usr/bin/install: cannot stat 'docs-utils/prologue.txt': No such file or directory
make: *** [Makefile:195: install_docs] Error 1
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/158bd65984245a1a563c747e7d5afd1b03d82a1d" style="color: #1068bf; text-decoration: none;">158bd659</a></strong>
<div>
<span>by Hécate Moonlight</span>
<i>at 2022-05-09T16:25:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Correct base's changelog for 4.16.1.0
This commit reaffects the new Ix instances of the foreign integral
types from base 4.17 to 4.16.1.0
closes #21529
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a4fbb589fd176e6c2f6648dea6c93e25668f1db8" style="color: #1068bf; text-decoration: none;">a4fbb589</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-05-09T16:26:36-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>STG: only print cost-center if asked to
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/50347dedc6525fcd6b32e29c0c532248b6fdd1c6" style="color: #1068bf; text-decoration: none;">50347ded</a></strong>
<div>
<span>by Gergo ERDI</span>
<i>at 2022-05-10T11:43:33+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve "Glomming" note
Add a paragraph that clarifies that `occurAnalysePgm` finding out-of-order
references, and thus needing to glom, is not a cause for concern when its
root cause is rewrite rules.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/df2e3373d534521d261e7b4fceee382c30974c0c" style="color: #1068bf; text-decoration: none;">df2e3373</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-05-10T20:45:41-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>update INSTALL</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dcac383312cb4f2425eb412e72f632d6b484077b" style="color: #1068bf; text-decoration: none;">dcac3833</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-10T20:46:16-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>driver: Make -no-keep-o-files -no-keep-hi-files work in --make mode
It seems like it was just an oversight to use the incorrect DynFlags
(global rather than local) when implementing these two options. Using
the local flags allows users to request these intermediate files get
cleaned up, which works fine in --make mode because
1. Interface files are stored in memory
2. Object files are only cleaned at the end of session (after link)
Fixes #21349
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/35da81f8fb04d905ed7fc2f2a435530b142c983d" style="color: #1068bf; text-decoration: none;">35da81f8</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-10T20:46:52-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>configure: Check for ffi.h
As noted in #21485, we checked for ffi.h yet then failed to throw an
error if it is missing.
Fixes #21485.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bdc99cc22c903d15eb7f4cd8da4b37d307179808" style="color: #1068bf; text-decoration: none;">bdc99cc2</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-05-10T20:47:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Check for uninferrable variables in tcInferPatSynDecl
This fixes #21479
See Note [Unquantified tyvars in a pattern synonym]
While doing this, I found that some error messages pointed at the
pattern synonym /name/, rather than the /declaration/ so I widened the
SrcSpan to encompass the declaration.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/142a73d92ea1ef8054d3764b5897b83ad349fed5" style="color: #1068bf; text-decoration: none;">142a73d9</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-10T20:48:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Fix split-sections transformer
The splitSections transformer has been broken since -dynamic-too support
was implemented in hadrian. This is because we actually build the
dynamic way when building the dynamic way, so the predicate would always
fail.
The fix is to just always pass `split-sections` even if it doesn't do
anything for a particular way.
Fixes #21138
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/699f593532a3cd5ca1c2fab6e6e4ce9d53be2c1f" style="color: #1068bf; text-decoration: none;">699f5935</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-10T20:48:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>packaging: Build perf builds with -split-sections
In 8f71d958 the make build system was made to use split-sections on
linux systems but it appears this logic never made it to hadrian.
There is the split_sections flavour transformer but this doesn't appear
to be used for perf builds on linux.
Closes #21135
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/21feece2f36e8c084ccd87579e48f2b03d5346d0" style="color: #1068bf; text-decoration: none;">21feece2</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-05-10T20:48:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use the wrapper for an unlifted binding
We assumed the wrapper for an unlifted binding is the identity,
but as #21516 showed, that is no always true.
Solution is simple: use it.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/68d1ea5fe083e0b3ed114bbf02a642c7481ab5d7" style="color: #1068bf; text-decoration: none;">68d1ea5f</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-10T20:49:15-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>docs: Fix path to GHC API docs in index.html
In the make bindists we generate documentation in docs/ghc-<VER> but the
hadrian bindists generate docs/ghc/ so the path to the GHC API docs was
wrong in the index.html file.
Rather than make the hadrian and make bindists the same it was easier to
assume that if you're using the mkDocs script that you're using hadrian
bindists.
Fixes #21509
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9d8f44a98f8345e5223614e0de50fbef2a05dd1d" style="color: #1068bf; text-decoration: none;">9d8f44a9</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-10T20:49:51-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Don't pass -j to haddock
This has high potential for oversubcribing as many haddock jobs can be
spawned in parralel which will each request the given number of
capabilities.
Once -jsem is implemented (#19416, !5176) we can expose that haddock via
haddock and use that to pass a semaphore.
Ticket #21136
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fec3e7aa72bee69ef3a3f363709377990650a5d3" style="color: #1068bf; text-decoration: none;">fec3e7aa</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-10T20:50:27-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Only copy and install libffi headers when using in-tree libffi
When passed `--use-system-libffi` then we shouldn't copy and install the
headers from the system package. Instead the headers are expected to be
available as a runtime dependency on the users system.
Fixes #21485 #21487
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5b791ed3baf9875931c3bf3b67e8d83d0b3c94e2" style="color: #1068bf; text-decoration: none;">5b791ed3</a></strong>
<div>
<span>by mikael</span>
<i>at 2022-05-11T08:22:13-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>FIND_LLVM_PROG: Recognize llvm suffix used by FreeBSD, ie llc10.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8500206ea7084f3914efd3fe7f4336f2893eb4ac" style="color: #1068bf; text-decoration: none;">8500206e</a></strong>
<div>
<span>by ARATA Mizuki</span>
<i>at 2022-05-11T08:22:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make floating-point abs IEEE 754 compliant
The old code used by via-C backend didn't handle the sign bit of NaN.
See #21043.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4a4c77ed8f16f157dd647593de58840b024bbd2d" style="color: #1068bf; text-decoration: none;">4a4c77ed</a></strong>
<div>
<span>by Alan Zimmerman</span>
<i>at 2022-05-11T08:23:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>EPA: do statement with leading semicolon has wrong anchor
The code
do; a <- doAsync; b
Generated an incorrect Anchor for the statement list that starts after
the first semicolon.
This commit fixes it.
Closes #20256
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e3ca8dacf121f3831248775238be4807f53f7ceb" style="color: #1068bf; text-decoration: none;">e3ca8dac</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-05-11T08:24:08-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Specialiser: saturate DFuns correctly
Ticket #21489 showed that the saturation mechanism for
DFuns (see Note Specialising DFuns) should use both
UnspecType and UnspecArg.
We weren't doing that; but this MR fixes that problem.
No test case because it's hard to tickle, but it showed up in
Gergo's work with GHC-as-a-library.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fcc7dc4c2848d46439bcbfae3f9eaf0a1f400ab4" style="color: #1068bf; text-decoration: none;">fcc7dc4c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-11T20:05:41-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Check for dynamic msys2 dependencies
Both #20878 and #21196 were caused by unwanted dynamic dependencies
being introduced by boot libraries. Ensure that we catch this in CI by
attempting to run GHC in an environment with a minimal PATH.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3c998f0d5f91742f0474e0eb76082e069ecb0cf4" style="color: #1068bf; text-decoration: none;">3c998f0d</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-11T20:06:16-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add back Debian9 CI jobs
We still build Deb9 bindists for now due to Ubuntu 18 and Linux Mint 19
not being at EOL until April 2023 and they still need tinfo5.
Fixes #21469
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dea9a3d90d657705be073fd4e0db64e76d717a0f" style="color: #1068bf; text-decoration: none;">dea9a3d9</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-11T20:06:51-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Drop setExecutable
Since f6e366c058b136f0789a42222b8189510a3693d1 setExecutable has been
dead code. Drop it.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/32cdf62dc1537f572f2d044851e316ca37d8e012" style="color: #1068bf; text-decoration: none;">32cdf62d</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-05-11T20:07:27-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add a missing guard in GHC.HsToCore.Utils.is_flat_prod_pat
This missing guard gave rise to #21519.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2c00a8d0ba4bc37e212a723fc025f83c471986c5" style="color: #1068bf; text-decoration: none;">2c00a8d0</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-11T20:08:02-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add mention of -hi to RTS --help
Fixes #21546
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a2dcad4e6f75c08aacc5902a20ca4c773819d7b7" style="color: #1068bf; text-decoration: none;">a2dcad4e</a></strong>
<div>
<span>by Andre Marianiello</span>
<i>at 2022-05-12T02:15:48+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Decouple dynflags in Cmm parser (related to #17957)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3a022baa1967e2df2ed19341de38b004dc07c04f" style="color: #1068bf; text-decoration: none;">3a022baa</a></strong>
<div>
<span>by Andre Marianiello</span>
<i>at 2022-05-12T02:15:48+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove Module argument from initCmmParserConfig
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2fc8d76b5c6b4aadcdee39703f8ba6b8936fa9c8" style="color: #1068bf; text-decoration: none;">2fc8d76b</a></strong>
<div>
<span>by Andre Marianiello</span>
<i>at 2022-05-12T02:15:48+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Move CmmParserConfig and PDConfig into GHC.Cmm.Parser.Config
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b8c5ffab70fbd4e9b01a180359800188191cca47" style="color: #1068bf; text-decoration: none;">b8c5ffab</a></strong>
<div>
<span>by Andre Marianiello</span>
<i>at 2022-05-12T18:13:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Decouple dynflags in GHC.Core.Opt.Arity (related to #17957)
Metric Decrease:
T16875
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3bf938b6c5e1190f3a55e149deaec2f6309d398f" style="color: #1068bf; text-decoration: none;">3bf938b6</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-05-12T18:14:34-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update extending_ghc for TcPlugin changes
The documentation still mentioned Derived constraints and
an outdated datatype TcPluginResult.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/668a9ef496f9df7e628397c4de9a0a4fcdcd7e6a" style="color: #1068bf; text-decoration: none;">668a9ef4</a></strong>
<div>
<span>by jackohughes</span>
<i>at 2022-05-13T12:10:34-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix printing of brackets in multiplicities (#20315)
Change mulArrow to allow for printing of correct application precedence
where necessary and update callers of mulArrow to reflect this.
As part of this, move mulArrow from GHC/Utils/Outputtable to GHC/Iface/Type.
Fixes #20315
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/30b8b7f182972ea5abb3be862302d3127a36a259" style="color: #1068bf; text-decoration: none;">30b8b7f1</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-13T12:11:09-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Add debug output on ocResolve failure
This makes it easier to see how resolution failures nest.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/53b3fa1c782b251076707a024f55276d4ccb0a6c" style="color: #1068bf; text-decoration: none;">53b3fa1c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-13T12:11:09-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/PEi386: Fix handling of weak symbols
Previously we would flag the symbol as weak but failed
to set its address, which must be computed from an "auxiliary"
symbol entry the follows the weak symbol.
Fixes #21556.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5678f017a69dc758d0edabbdaad755bd5efef465" style="color: #1068bf; text-decoration: none;">5678f017</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-13T12:11:09-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Add tests for #21556
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/49af0e52e7f5cb123140682c7246be5ed46ba6a6" style="color: #1068bf; text-decoration: none;">49af0e52</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-13T22:23:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Re-export augment and build from GHC.List
Resolves https://gitlab.haskell.org/ghc/ghc/-/issues/19127
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/aed356e1b68b2201fa6e3c5bf14079f3f3366b44" style="color: #1068bf; text-decoration: none;">aed356e1</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-05-13T22:24:02-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Comments only around HsWrapper
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/27b904090182c8667640f3ef24e74584f3864a4c" style="color: #1068bf; text-decoration: none;">27b90409</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-16T08:30:44-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Introduce linting flavour transformer (+lint)
The linting flavour enables -dlint uniformly across anything build by
the stage1 compiler.
-dcmm-lint is not currently enabled because it fails on i386 (see #21563)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3f316776bf25160bc5a3f10486456c6ab60ff282" style="color: #1068bf; text-decoration: none;">3f316776</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-16T08:30:44-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Uniformly enable -dlint with enableLinting transformer
This fixes some bugs where
* -dcore-lint was being passed when building stage1 libraries with the
boot compiler
* -dcore-lint was not being passed when building executables.
Fixes #20135
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3d74cfca991f4c870b1568954d5e09d390977a44" style="color: #1068bf; text-decoration: none;">3d74cfca</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-05-16T08:31:20-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make closure macros EXTERN_INLINE to make debugging easier
Implements #21424.
The RTS macros get_itbl and friends are extremely helpful during debugging.
However only a select few of those were available in the compiled RTS as actual symbols
as the rest were INLINE macros.
This commit marks all of them as EXTERN_INLINE. This will still inline them at use sites
but allow us to use their compiled counterparts during debugging.
This allows us to use things like `p get_fun_itbl(ptr)` in the gdb shell
since `get_fun_itbl` will now be available as symbol!
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/93153aab656f173ac36e0c3c2b4835caaa55669b" style="color: #1068bf; text-decoration: none;">93153aab</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-16T08:31:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>packaging: Introduce CI job for generating hackage documentation
This adds a CI job (hackage-doc-tarball) which generates the necessary
tarballs for uploading libraries and documentation to hackage. The
release script knows to download this folder and the upload script will
also upload the release to hackage as part of the release.
The `ghc_upload_libs` script is moved from ghc-utils into .gitlab/ghc_upload_libs
There are two modes, preparation and upload.
* The `prepare` mode takes a link to a bindist and creates a folder containing the
source and doc tarballs ready to upload to hackage.
* The `upload` mode takes the folder created by prepare and performs the upload to
hackage.
Fixes #21493
Related to #21512
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/65d31d05565073a37f9df73c9ea6f6f87627f26e" style="color: #1068bf; text-decoration: none;">65d31d05</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-05-16T15:32:50-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add arity to the INLINE pragmas for pattern synonyms
The lack of INLNE arity was exposed by #21531. The fix is
simple enough, if a bit clumsy.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/43c018aaaf15ccce215958b7e09b1e29ee7b6d40" style="color: #1068bf; text-decoration: none;">43c018aa</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-05-16T15:33:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Misc cleanup
- Remove groupWithName (unused)
- Use the RuntimeRepType synonym where possible
- Replace getUniqueM + mkSysLocalOrCoVar with mkSysLocalOrCoVarM
No functional changes.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8dfea0789957278b99bf302dfb24078fff84b6d2" style="color: #1068bf; text-decoration: none;">8dfea078</a></strong>
<div>
<span>by Pavol Vargovcik</span>
<i>at 2022-05-16T15:34:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>TcPlugin: access to irreducible givens + fix passed ev_binds_var
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fb579e15c56994bc6c4cc266535024f20a81f830" style="color: #1068bf; text-decoration: none;">fb579e15</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-17T00:25:02-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>driver: Introduce pgmcxx
Here we introduce proper support for compilation of C++ objects. This
includes:
* logic in `configure` to detect the C++ toolchain and propagating this
information into the `settings` file
* logic in the driver to use the C++ toolchain when compiling C++
sources
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/43628ed44b063e25e6d1394314ed89f07f026503" style="color: #1068bf; text-decoration: none;">43628ed4</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-17T00:25:02-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Build T20918 with HC, not CXX
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0ef249aa26f653677c5368bb51af34f7577ba5b9" style="color: #1068bf; text-decoration: none;">0ef249aa</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-17T00:25:02-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Introduce package to capture dependency on C++ stdlib
Here we introduce a new "virtual" package into the initial package
database, `system-cxx-std-lib`. This gives users a convenient, platform
agnostic way to link against C++ libraries, addressing #20010.
Fixes #20010.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/03efe28317c5e037eab4d47790a6a1fb74d38c3d" style="color: #1068bf; text-decoration: none;">03efe283</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-17T00:25:02-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Add tests for system-cxx-std-lib package
Test that we can successfully link against C++ code both in GHCi and
batch compilation.
See #20010
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5f6527e05beb628c5015ab9f8a7f4012ee8d14a1" style="color: #1068bf; text-decoration: none;">5f6527e0</a></strong>
<div>
<span>by nineonine</span>
<i>at 2022-05-17T00:25:38-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>OverloadedRecordFields: mention parent name in 'ambiguous occurrence' error for better disambiguation (#17420)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/eccdb2080ea80df6510098f2e58046bc20efe19a" style="color: #1068bf; text-decoration: none;">eccdb208</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-05-17T07:16:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Adjust flags for pprTrace
We were using defaultSDocContext for pprTrace, which suppresses
lots of useful infomation. This small MR adds
GHC.Utils.Outputable.traceSDocContext
and uses it for pprTrace and pprTraceUserWarning.
traceSDocContext is a global, and hence not influenced by flags,
but that seems unavoidable. But I made the sdocPprDebug bit
controlled by unsafeHasPprDebug, since we have the latter for
exactly this purpose.
Fixes #21569
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d2284c4c9dd484a4b459366956c4aedc72336b04" style="color: #1068bf; text-decoration: none;">d2284c4c</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-05-17T07:17:15-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix bad interaction between withDict and the Specialiser
This MR fixes a bad bug, where the withDict was inlined too
vigorously, which in turn made the type-class Specialiser generate
a bogus specialisation, because it saw the same overloaded function
applied to two /different/ dictionaries.
Solution: inline `withDict` later. See (WD8) of Note [withDict]
in GHC.HsToCore.Expr
See #21575, which is fixed by this change.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/70f52443550d37985cf7e06ffafd5a162319d9e1" style="color: #1068bf; text-decoration: none;">70f52443</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-17T07:17:50-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump time submodule to 1.12.2
This bumps the time submodule to the 1.12.2 release.
Fixes #21571
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2343457df2509447ed869bc251897fc0286591bc" style="color: #1068bf; text-decoration: none;">2343457d</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2022-05-17T07:18:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove unused test files (#21582)
Those files were moved to the perf/ subtree in 11c9a469, and then
accidentally reintroduced in 680ef2c8.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cb52b4ae1508639e2686717d220b977e201394d3" style="color: #1068bf; text-decoration: none;">cb52b4ae</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-17T16:00:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CafAnal: Improve code clarity
Here we implement a few measures to improve the clarity of the CAF
analysis implementation. Specifically:
* Use CafInfo instead of Bool since the former is more descriptive
* Rename CAFLabel to CAFfyLabel, since not all CAFfyLabels are in fact
CAFs
* Add numerous comments
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b048a9f4e28186d2245427d2d83f08418573fae5" style="color: #1068bf; text-decoration: none;">b048a9f4</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-17T16:00:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>codeGen: Ensure that static datacon apps are included in SRTs
When generating an SRT for a recursive group, GHC.Cmm.Info.Build.oneSRT
filters out recursive references, as described in Note [recursive SRTs].
However, doing so for static functions would be unsound, for the reason
described in Note [Invalid optimisation: shortcutting].
However, the same argument applies to static data constructor
applications, as we discovered in #20959. Fix this by ensuring that
static data constructor applications are included in recursive SRTs.
The approach here is not entirely satisfactory, but it is a starting
point.
Fixes #20959.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0e2d16eb76037152c96226f0f65a5ebdee64f7b6" style="color: #1068bf; text-decoration: none;">0e2d16eb</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-17T16:00:50-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add test for #21558
This is now fixed on master and 9.2 branch.
Closes #21558
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ef3c8d9e077a1d4ede0724075489fb1f12afa3f9" style="color: #1068bf; text-decoration: none;">ef3c8d9e</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-05-17T20:22:02-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Don't store LlvmConfig into DynFlags
LlvmConfig contains information read from llvm-passes and llvm-targets
files in GHC's top directory. Reading these files is done only when
needed (i.e. when the LLVM backend is used) and cached for the whole
compiler session. This patch changes the way this is done:
- Split LlvmConfig into LlvmConfig and LlvmConfigCache
- Store LlvmConfigCache in HscEnv instead of DynFlags: there is no
good reason to store it in DynFlags. As it is fixed per session, we
store it in the session state instead (HscEnv).
- Initializing LlvmConfigCache required some changes to driver functions
such as newHscEnv. I've used the opportunity to untangle initHscEnv
from initGhcMonad (in top-level GHC module) and to move it to
GHC.Driver.Main, close to newHscEnv.
- I've also made `cmmPipeline` independent of HscEnv in order to remove
the call to newHscEnv in regalloc_unit_tests.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/828fbd8ac79c6a163584bd4aed25bef6db4a2a4a" style="color: #1068bf; text-decoration: none;">828fbd8a</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-05-17T20:22:38-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Give all EXTERN_INLINE closure macros prototypes
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cfc8e2e2e3c9d9044f8f4d100c102b005695905f" style="color: #1068bf; text-decoration: none;">cfc8e2e2</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-19T04:57:51-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>base: Introduce [sg]etFinalizerExceptionHandler
This introduces a global hook which is called when an exception is
thrown during finalization.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/372cf7305157df7bbe41d2d1f45211d9b999ff52" style="color: #1068bf; text-decoration: none;">372cf730</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-19T04:57:51-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>base: Throw exceptions raised while closing finalized Handles
Fixes #21336.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3dd2f944428596227590f5f15d3a47c0de1cc5c3" style="color: #1068bf; text-decoration: none;">3dd2f944</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-19T04:57:51-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Add tests for #21336
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/297156e0b8053a28a860e7a18e1816207a59547b" style="color: #1068bf; text-decoration: none;">297156e0</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-19T04:58:27-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add release flavour and use it for the release jobs
The release flavour is essentially the same as the perf flavour
currently but also enables `-haddock`. I have hopefully updated all the
relevant places where the `-perf` flavour was hardcoded.
Fixes #21486
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a05b62936a7101e265b7b7776d8119754738ca70" style="color: #1068bf; text-decoration: none;">a05b6293</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-19T04:58:27-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Don't build sphinx documentation on centos
The centos docker image lacks the sphinx builder so we disable building
sphinx docs for these jobs.
Fixes #21580
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/209d7c699225f5e9b8acbf9e50711165a37a91ed" style="color: #1068bf; text-decoration: none;">209d7c69</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-19T04:58:27-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Use correct syntax when args list is empty
This seems to fail on the ancient version of bash present on CentOS
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/02d1633466733f154753753c8d9e94062d334b1a" style="color: #1068bf; text-decoration: none;">02d16334</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-19T04:59:03-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Don't attempt to build dynamic profiling libraries
We only support building static profiling libraries, the transformer was
requesting things like a dynamic, threaded, debug, profiling RTS, which
we have never produced nor distributed.
Fixes #21567
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/35bdab1cb97f0be0ebea7cc93b977759f51d976c" style="color: #1068bf; text-decoration: none;">35bdab1c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-19T04:59:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>configure: Check CC_STAGE0 for --target support
We previously only checked the stage 1/2 compiler
for --target support. We got away with this for quite a while but it
eventually caught up with us in #21579, where `bytestring`'s new NEON
implementation was unbuildable on Darwin due to Rosetta's seemingly
random logic for determining which executable image to execute. This
lead to a confusing failure to build `bytestring`'s cbits, when `clang`
tried to compile NEON builtins while targetting x86-64.
Fix this by checking CC_STAGE0 for --target support.
Fixes #21579.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0ccca94bc0110a2ee7f79382cb0e6831e79a3176" style="color: #1068bf; text-decoration: none;">0ccca94b</a></strong>
<div>
<span>by Norman Ramsey</span>
<i>at 2022-05-20T05:32:32-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>add dominator analysis of `CmmGraph`
This commit adds module `GHC.Cmm.Dominators`, which provides a wrapper
around two existing algorithms in GHC: the Lengauer-Tarjan dominator
analysis from the X86 back end and the reverse postorder ordering from
the Cmm Dataflow framework. Issue #20726 proposes that we evaluate
some alternatives for dominator analysis, but for the time being, the
best path forward is simply to use the existing analysis on
`CmmGraph`s.
This commit addresses a bullet in #21200.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/54f0b578ccfccce581f0bf46df12a811ceab6d3b" style="color: #1068bf; text-decoration: none;">54f0b578</a></strong>
<div>
<span>by Norman Ramsey</span>
<i>at 2022-05-20T05:32:32-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>add dominator-tree function
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/05ed917bdb0a95596a722f995a0ddd97b81dcaa1" style="color: #1068bf; text-decoration: none;">05ed917b</a></strong>
<div>
<span>by Norman Ramsey</span>
<i>at 2022-05-20T05:32:32-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>add HasDebugCallStack; remove unneeded extensions
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0b8481361bf87461f1f6f14ae74209d66e45ee82" style="color: #1068bf; text-decoration: none;">0b848136</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-05-20T05:32:32-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>document fields of `DominatorSet`</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8a26e8d62cf315fb351419ac2cad6aa01ca9e175" style="color: #1068bf; text-decoration: none;">8a26e8d6</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-20T05:33:08-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>nonmoving: Fix documentation of GC statistics fields
These were previously incorrect.
Fixes #21553.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c1e24e610ae572b77bc1507674431a84563af759" style="color: #1068bf; text-decoration: none;">c1e24e61</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-20T05:33:44-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove pprTrace from pushCoercionIntoLambda (#21555)
This firstly caused spurious output to be emitted (as evidenced by
#21555) but even worse caused a massive coercion to be attempted to be
printed (> 200k terms) which would invariably eats up all the memory of
your computer.
The good news is that removing this trace allows the program to compile
to completion, the bad news is that the program exhibits a core lint
error (on 9.0.2) but not any other releases it seems.
Fixes #21577 and #21555
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a36d12ee19afa949da27ab73f082428830f3dba3" style="color: #1068bf; text-decoration: none;">a36d12ee</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-05-20T10:44:35-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>docs: Fix LlvmVersion in manpage (#21280)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/36b8a57cb30c1374cce749b6f1554a2d438336b9" style="color: #1068bf; text-decoration: none;">36b8a57c</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-20T10:45:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>validate: Use $make rather than make
In the validate script we are careful to use the $make variable as this
stores whether we are using gmake, make, quiet mode etc. There was just
this one place where we failed to use it.
Fixes #21598
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4aa3c5bde8c54f6ab8cbb2a574f7654590c077ca" style="color: #1068bf; text-decoration: none;">4aa3c5bd</a></strong>
<div>
<span>by Norman Ramsey</span>
<i>at 2022-05-21T03:11:04+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Change `Backend` type and remove direct dependencies
With this change, `Backend` becomes an abstract type
(there are no more exposed value constructors).
Decisions that were formerly made by asking "is the
current back end equal to (or different from) this named value
constructor?" are now made by interrogating the back end about
its properties, which are functions exported by `GHC.Driver.Backend`.
There is a description of how to migrate code using `Backend` in the
user guide.
Clients using the GHC API can find a backdoor to access the Backend
datatype in GHC.Driver.Backend.Internal.
Bumps haddock submodule.
Fixes #20927
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ecf5f3634c9971de4ae21870f0d6f3d5a35634a1" style="color: #1068bf; text-decoration: none;">ecf5f363</a></strong>
<div>
<span>by Julian Ospald</span>
<i>at 2022-05-21T12:51:16-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Respect DESTDIR in hadrian bindist Makefile, fixes #19646
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7edd991e5d00a1ba19f3607fe8a66bbdc3ab3181" style="color: #1068bf; text-decoration: none;">7edd991e</a></strong>
<div>
<span>by Julian Ospald</span>
<i>at 2022-05-21T12:51:16-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Test DESTDIR in test_hadrian()
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ea895b94afeecb111f8001fbd60f5d4c8828213c" style="color: #1068bf; text-decoration: none;">ea895b94</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-22T21:57:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Consider the stage of typeable evidence when checking stage restriction
We were considering all Typeable evidence to be "BuiltinInstance"s which
meant the stage restriction was going unchecked. In-fact, typeable has
evidence and so we need to apply the stage restriction.
This is
complicated by the fact we don't generate typeable evidence and the
corresponding DFunIds until after typechecking is concluded so we
introcue a new `InstanceWhat` constructor, BuiltinTypeableInstance which
records whether the evidence is going to be local or not.
Fixes #21547
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ffbe28e56aa382164525300fbc32d78eefd95e7d" style="color: #1068bf; text-decoration: none;">ffbe28e5</a></strong>
<div>
<span>by Dominik Peteler</span>
<i>at 2022-05-22T21:58:23-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Modularize GHC.Core.Opt.LiberateCase
Progress towards #17957
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bc723ac2cf2cfc329de4b8523bf891965075879b" style="color: #1068bf; text-decoration: none;">bc723ac2</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-05-23T17:09:34+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve FloatOut and SpecConstr
This patch addresses a relatively obscure situation that arose
when chasing perf regressions in !7847, which itself is fixing
It does two things:
* SpecConstr can specialise on ($df d1 d2) dictionary arguments
* FloatOut no longer checks argument strictness
See Note [Specialising on dictionaries] in GHC.Core.Opt.SpecConstr.
A test case is difficult to construct, but it makes a big difference
in nofib/real/eff/VSM, at least when we have the patch for #21286
installed. (The latter stops worker/wrapper for dictionary arguments).
There is a spectacular, but slightly illusory, improvement in
runtime perf on T15426. I have documented the specifics in
T15426 itself.
Metric Decrease:
T15426
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1a4195b04866ebdb5f42006fb92b8a73a4aa2bac" style="color: #1068bf; text-decoration: none;">1a4195b0</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-05-23T17:33:59-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make debug a `Bool` not an `Int` in `StgToCmmConfig`
We don't need any more resolution than this.
Rename the field to `stgToCmmEmitDebugInfo` to indicate it is no longer
conveying any "level" information.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e9fff12b34bb9770491d24eff5c280f44dc8cfc1" style="color: #1068bf; text-decoration: none;">e9fff12b</a></strong>
<div>
<span>by Alan Zimmerman</span>
<i>at 2022-05-23T21:04:49-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>EPA : Remove duplicate comments in DataFamInstD
The code
data instance Method PGMigration = MigrationQuery Query
-- ^ Run a query against the database
| MigrationCode (Connection -> IO (Either String ()))
-- ^ Run any arbitrary IO code
Resulted in two instances of the "-- ^ Run a query against the database"
comment appearing in the Exact Print Annotations when it was parsed.
Ensure only one is kept.
Closes #20239
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e2520df3fffa0cf22fb19c5fb872832d11c07d35" style="color: #1068bf; text-decoration: none;">e2520df3</a></strong>
<div>
<span>by Alan Zimmerman</span>
<i>at 2022-05-23T21:05:27-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>EPA: Comment Order Reversed
Make sure comments captured in the exact print annotations are in
order of increasing location
Closes #20718
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4b45fd72beda36addc11b5200f2d7c13ac6df43e" style="color: #1068bf; text-decoration: none;">4b45fd72</a></strong>
<div>
<span>by Teo Camarasu</span>
<i>at 2022-05-24T10:49:13-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add test for T21455
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e2cd1d43b711ada11eb330545e2d0bff3e21b4fc" style="color: #1068bf; text-decoration: none;">e2cd1d43</a></strong>
<div>
<span>by Teo Camarasu</span>
<i>at 2022-05-24T10:49:13-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Allow passing -po outside profiling way
Resolves #21455
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3b8c413ad58ef9914b8979b09ecd4c6cf7bf3538" style="color: #1068bf; text-decoration: none;">3b8c413a</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2022-05-24T10:49:52-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix haddock_*_perf tests on non-GNU-grep systems
Using regexp pattern requires `egrep` and straight up `+`. The
haddock_parser_perf and haddock_renamer_perf tests now pass on
OpenBSD. They previously incorrectly parsed the files and awk
complained about invalid syntax.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1db877a3d513e934625d5dc3ad6e9e8ca9ba9519" style="color: #1068bf; text-decoration: none;">1db877a3</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-24T10:50:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian/bindist: Drop redundant include of install.mk
`install.mk` is already included by `config.mk`. Moreover, `install.mk`
depends upon `config.mk` to set `RelocatableBuild`, making this first
include incorrect.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f485d26738c83ef564794b41188e0e082ee59b26" style="color: #1068bf; text-decoration: none;">f485d267</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2022-05-24T10:51:08-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove -z wxneeded for OpenBSD
With all the recent W^X fixes in the loader this workaround is not
necessary any longer. I verified that the only tests failing for me on
OpenBSD 7.1-current are the same (libc++ related) before and after
this commit (with --fast).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7c51177d3e135cbba4bc170126c74825fd7bdd61" style="color: #1068bf; text-decoration: none;">7c51177d</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-05-24T22:13:19-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use UnionListsOrd instead of UnionLists in most places.
This should get rid of most, if not all "Overlong lists" errors and fix #20016
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/81b3741fd5bacfa8fa63c8f963f1147036a6b0d9" style="color: #1068bf; text-decoration: none;">81b3741f</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-05-24T22:13:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix #21563 by using Word64 for 64bit shift code.
We use the 64bit shifts only on 64bit platforms. But we
compile the code always so compiling it on 32bit caused a
lint error. So use Word64 instead.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2c25fff6622cdb07b681cebde7890172f7c9e44f" style="color: #1068bf; text-decoration: none;">2c25fff6</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-05-24T22:14:30-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix compilation with -haddock on GHC <= 8.10
-haddock on GHC < 9.0 is quite fragile and can result in obtuse parse errors
when it encounters invalid haddock syntax.
This has started to affect users since 297156e0b8053a28a860e7a18e1816207a59547b
enabled -haddock by default on many flavours.
Furthermore, since we don't test bootstrapping with 8.10 on CI, this problem
managed to slip throught the cracks.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cfb9faff791064fab1b308b08b6ec1be288a4675" style="color: #1068bf; text-decoration: none;">cfb9faff</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-05-24T22:15:12-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Hadrian: don't add "lib" for relocatable builds
The conditional in hadrian/bindist/Makefile depended on the target OS,
but it makes more sense to use whether we are using a relocatable build.
(Currently this only gets set to true on Windows, but this ensures
that the logic stays correctly coupled.)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9973c0167c266dad1c9c6f2b96dbba3c29c22062" style="color: #1068bf; text-decoration: none;">9973c016</a></strong>
<div>
<span>by Andre Marianiello</span>
<i>at 2022-05-25T01:36:09-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove HscEnv from GHC.HsToCore.Usage (related to #17957)
Metric Decrease:
T16875
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2ff18e390b119c611b3dd429b76cfcbf36ef9545" style="color: #1068bf; text-decoration: none;">2ff18e39</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-05-25T01:36:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>SimpleOpt: beta-reduce through casts
The simple optimiser would sometimes fail to
beta-reduce a lambda when there were casts
in between the lambda and its arguments.
This can cause problems because we rely on
representation-polymorphic lambdas getting
beta-reduced away (for example, those
that arise from newtype constructors with
representation-polymorphic arguments, with
UnliftedNewtypes).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e74fc066cb33e5b7ae0d37cedb30230c597ef1ce" style="color: #1068bf; text-decoration: none;">e74fc066</a></strong>
<div>
<span>by CarrieMY</span>
<i>at 2022-05-25T16:43:03+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Desugar RecordUpd in `tcExpr`
This patch typechecks record updates by desugaring them inside
the typechecker using the HsExpansion mechanism, and then typechecking
this desugared result.
Example:
data T p q = T1 { x :: Int, y :: Bool, z :: Char }
| T2 { v :: Char }
| T3 { x :: Int }
| T4 { p :: Float, y :: Bool, x :: Int }
| T5
The record update `e { x=e1, y=e2 }` desugars as follows
e { x=e1, y=e2 }
===>
let { x' = e1; y' = e2 } in
case e of
T1 _ _ z -> T1 x' y' z
T4 p _ _ -> T4 p y' x'
The desugared expression is put into an HsExpansion, and we typecheck
that.
The full details are given in Note [Record Updates] in GHC.Tc.Gen.Expr.
Fixes #2595 #3632 #10808 #10856 #16501 #18311 #18802 #21158 #21289
Updates haddock submodule
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2b8bdab82c77f33f3b9862d860cc8c2c81d4fb96" style="color: #1068bf; text-decoration: none;">2b8bdab8</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-05-26T03:21:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>update README</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3d7e7e84f3ffab4ebf68fe0cd8f105d63ec60d39" style="color: #1068bf; text-decoration: none;">3d7e7e84</a></strong>
<div>
<span>by BinderDavid</span>
<i>at 2022-05-26T03:22:38-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Replace dead link in Haddock documentation of Control.Monad.Fail (fixes #21602)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ee61c7f9bdb742590aeb74190d3df2ef76059d4b" style="color: #1068bf; text-decoration: none;">ee61c7f9</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-05-26T03:23:13-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add Haddocks for `WwOpts`
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/da5ccf0ee79fc690a7e69c0b644f0226dde07e49" style="color: #1068bf; text-decoration: none;">da5ccf0e</a></strong>
<div>
<span>by Dominik Peteler</span>
<i>at 2022-05-26T03:23:13-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Avoid global compiler state for `GHC.Core.Opt.WorkWrap`
Progress towards #17957
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3bd975b48d56815405da934a2331d9f9aa884ad7" style="color: #1068bf; text-decoration: none;">3bd975b4</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-05-26T03:23:52-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Optimiser: avoid introducing bad rep-poly
The functions `pushCoValArg` and `pushCoercionIntoLambda` could
introduce bad representation-polymorphism. Example:
type RR :: RuntimeRep
type family RR where { RR = IntRep }
type F :: TYPE RR
type family F where { F = Int# }
co = GRefl F (TYPE RR[0])
:: (F :: TYPE RR)
~# (F |> TYPE RR[0] :: TYPE IntRep)
f :: F -> ()
`pushCoValArg` would transform the unproblematic application
(f |> (co -> <()>)) (arg :: F |> TYPE RR[0])
into an application in which the argument does not have a fixed
`RuntimeRep`:
f ((arg |> sym co) :: (F :: TYPE RR))
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b22979fb8d84efa21cc0b9dd56a8d9ef8e3693b6" style="color: #1068bf; text-decoration: none;">b22979fb</a></strong>
<div>
<span>by Fraser Tweedale</span>
<i>at 2022-05-26T06:14:51-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>executablePath test: fix file extension treatment
The executablePath test strips the file extension (if any) when
comparing the query result with the expected value. This is to
handle platforms where GHC adds a file extension to the output
program file (e.g. .exe on Windows).
After the initial check, the file gets deleted (if supported).
However, it tries to delete the *stripped* filename, which is
incorrect. The test currently passes only because Windows does not
allow deleting the program while any process created from it is
alive.
Make the test program correct in general by deleting the
*non-stripped* executable filename.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/afde42761f509a93a70e8997bd8bbf38e7b70209" style="color: #1068bf; text-decoration: none;">afde4276</a></strong>
<div>
<span>by Fraser Tweedale</span>
<i>at 2022-05-26T06:14:51-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>fix executablePath test for NetBSD
executablePath support for NetBSD was added in
a172be07e3dce758a2325104a3a37fc8b1d20c9c, but the test was not
updated.
Update the test so that it works for NetBSD. This requires handling
some quirks:
- The result of getExecutablePath could include "./" segments.
Therefore use System.FilePath.equalFilePath to compare paths.
- The sysctl(2) call returns the original executable name even after
it was deleted. Add `canQueryAfterDelete :: [FilePath]` and
adjust expectations for the post-delete query accordingly.
Also add a note to the `executablePath` haddock to advise that
NetBSD behaves differently from other OSes when the file has been
deleted.
Also accept a decrease in memory usage for T16875. On Windows, the
metric is -2.2% of baseline, just outside the allowed ±2%. I don't
see how this commit could have influenced this metric, so I suppose
it's something in the CI environment.
Metric Decrease:
T16875
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d0e4355af8c936a3ba831ecf6afa62b06475069f" style="color: #1068bf; text-decoration: none;">d0e4355a</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-05-26T06:15:30-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Factor out `initArityOps` to `GHC.Driver.Config.*` module
We want `DynFlags` only mentioned in `GHC.Driver`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/44bb71115bcf1edaee82fc75cbe07a3e242e9476" style="color: #1068bf; text-decoration: none;">44bb7111</a></strong>
<div>
<span>by romes</span>
<i>at 2022-05-26T16:27:57+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>TTG: Move MatchGroup Origin field and MatchGroupTc to GHC.Hs
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/88e586004abac9404307f6e19c86d7fd5c4ad5f1" style="color: #1068bf; text-decoration: none;">88e58600</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-05-26T17:38:43-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add tests for eta-expansion of data constructors
This patch adds several tests relating to the eta-expansion of
data constructors, including UnliftedNewtypes and DataTypeContexts.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d87530bbf497d21edb4a1dd5cb834fb42a49d1d8" style="color: #1068bf; text-decoration: none;">d87530bb</a></strong>
<div>
<span>by Richard Eisenberg</span>
<i>at 2022-05-26T23:20:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Generalize breakTyVarCycle to work with TyFamLHS
The function breakTyVarCycle_maybe has been installed
in a dark corner of GHC to catch some gremlins (a.k.a.
occurs-check failures) who lurk
there. But it previously only caught gremlins of the
form (a ~ ... F a ...), where some of our intrepid users
have spawned gremlins of the form (G a ~ ... F (G a) ...).
This commit improves breakTyVarCycle_maybe (and renames
it to breakTyEqCycle_maybe) to catch the new gremlins.
Happily, the change is remarkably small.
The gory details are in Note [Type equality cycles].
Test cases: typecheck/should_compile/{T21515,T21473}.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ed37027f713bb6563fd98d144a39211339fd91a5" style="color: #1068bf; text-decoration: none;">ed37027f</a></strong>
<div>
<span>by Hécate Moonlight</span>
<i>at 2022-05-26T23:20:52-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>[base] Fix the links in the Data.Data module
fix #21658
fix #21657
fix #21657
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3bd7d5d668b316f517a66c72fcf9bc7a36cc6ba4" style="color: #1068bf; text-decoration: none;">3bd7d5d6</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-05-27T16:44:48+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use a class to check validity of withDict
This moves handling of the magic 'withDict' function from the desugarer
to the typechecker. Details in Note [withDict].
I've extracted a part of T16646Fail to a separate file T16646Fail2,
because the new error in 'reify' hides the errors from 'f' and 'g'.
WithDict now works with casts, this fixes #21328.
Part of #19915
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b54f6c4fefaca8ca043cccbf474fb0da3d1c66b5" style="color: #1068bf; text-decoration: none;">b54f6c4f</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-05-28T21:00:09-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix FreeVars computation for mdo
Commit acb188e0 introduced a regression in the computation of free
variables in mdo statements, as the logic in
GHC.Rename.Expr.segmentRecStmts was slightly different depending on
whether the recursive do block corresponded to an mdo statement or
a rec statment.
This patch restores the previous computation for mdo blocks.
Fixes #21654
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0704295ceafaf0f531b90689569c0492d11f4725" style="color: #1068bf; text-decoration: none;">0704295c</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-28T21:00:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>T16875: Stabilise (temporarily) by increasing acceptance threshold
The theory is that on windows there is some difference in the
environment between pipelines on master and merge requests which affects
all tests equally but because T16875 barely allocates anything it is the
test which is affected the most.
See #21557
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6341c8ed5d3689c9cc52f4fcd2dce78a5f75b5a5" style="color: #1068bf; text-decoration: none;">6341c8ed</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-28T21:01:20-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>make: Fix make maintainer-clean deleting a file tracked by source control
Fixes #21659
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fbf2f254ec85bd696859f939698edfaef8ff708c" style="color: #1068bf; text-decoration: none;">fbf2f254</a></strong>
<div>
<span>by Bodigrim</span>
<i>at 2022-05-28T21:01:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Expand documentation of hIsTerminalDevice
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0092c67cffb707611b2684df24a1a77e40c01cb7" style="color: #1068bf; text-decoration: none;">0092c67c</a></strong>
<div>
<span>by Teo Camarasu</span>
<i>at 2022-05-29T12:25:39+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>export IsList from GHC.IsList
it is still re-exported from GHC.Exts
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/913963271f985d8ac43a9b4d0b230fb9758049cd" style="color: #1068bf; text-decoration: none;">91396327</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-05-30T09:40:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>MachO linker: fix handling of ARM64_RELOC_SUBTRACTOR
ARM64_RELOC_SUBTRACTOR relocations are paired with an
AMR64_RELOC_UNSIGNED relocation to implement: addend + sym1 - sym2
The linker was doing it in two steps, basically:
*addend <- *addend - sym2
*addend <- *addend + sym1
The first operation was likely to overflow. For example when the
relocation target was 32-bit and both sym1/sym2 were 64-bit addresses.
With the small memory model, (sym1-sym2) would fit in 32 bits but
(*addend-sym2) may not.
Now the linker does it in one step:
*addend <- *addend + sym1 - sym2
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/acc268064daaa39823b0d566169eadb2afdff743" style="color: #1068bf; text-decoration: none;">acc26806</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-05-30T09:40:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Some fixes to SRT documentation
- reordered the 3 SRT implementation cases from the most general to the
most specific one:
USE_SRT_POINTER -> USE_SRT_OFFSET -> USE_INLINE_SRT_FIELD
- added requirements for each
- found and documented a confusion about "SRT inlining" not supported
with MachO. (It is fixed in the following commit)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5878f439d4214ba0dd895e56460f15fc6c67283c" style="color: #1068bf; text-decoration: none;">5878f439</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-05-30T09:40:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Enable USE_INLINE_SRT_FIELD on ARM64
It was previously disabled because of:
- a confusion about "SRT inlining" (see removed comment in this commit)
- a linker bug (overflow) in the handling of ARM64_RELOC_SUBTRACTOR
relocation: fixed by a previous commit.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/59bd61599561b54c204f0b99c2f4f4abd1af5c57" style="color: #1068bf; text-decoration: none;">59bd6159</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-30T09:41:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Make sure to exit promptly if `make install` fails.
Due to the vageries of bash, you have to explicitly handle the failure
and exit when in a function.
This failed to exit promptly when !8247 was failing.
See #21358 for the general issue
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5a5a28dafbbaca4b147df657e69483b36482f82e" style="color: #1068bf; text-decoration: none;">5a5a28da</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-05-30T09:42:23-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Split GHC.HsToCore.Foreign.Decl
This is preliminary work for JavaScript support. It's better to put the
code handling the desugaring of Prim, C and JavaScript declarations into
separate modules.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6f5ff4fa0ee6b25ea5c2ed4fe0470f6975030f4d" style="color: #1068bf; text-decoration: none;">6f5ff4fa</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-05-30T09:43:05-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump hadrian to LTS-19.8 (GHC 9.0.2)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f2e707077bfef6ca5f9cb1a1b2bfaa14c0637c40" style="color: #1068bf; text-decoration: none;">f2e70707</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-05-30T09:43:05-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Hadrian: remove unused code
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2f215b9fcd7c14023464b52c0ca572a5ad09518d" style="color: #1068bf; text-decoration: none;">2f215b9f</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-05-30T13:44:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Eta reduction with casted function
We want to be able to eta-reduce
\x y. ((f x) |> co) y
by pushing 'co' inwards. A very small change accommodates this
See Note [Eta reduction with casted function]
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f4f6a87af7d150765b54c56518b2f87818ae436c" style="color: #1068bf; text-decoration: none;">f4f6a87a</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-05-30T13:44:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Do arity trimming at bindings, rather than in exprArity
Sometimes there are very large casts, and coercionRKind
can be slow.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/610a2b83944493678d9c0540b53d17948e425d90" style="color: #1068bf; text-decoration: none;">610a2b83</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-05-30T13:44:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make findRhsArity take RecFlag
This avoids a fixpoint iteration for the common case of
non-recursive bindings.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/80ba50c7f589c3a1ee95619d24f350368c9b9759" style="color: #1068bf; text-decoration: none;">80ba50c7</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-05-30T13:44:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Comments and white space
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0079171bae7271dc44f81c3bf26505941ee92d7e" style="color: #1068bf; text-decoration: none;">0079171b</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-05-30T13:44:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make PrimOpId record levity
This patch concerns #20155, part (1)
The general idea is that since primops have curried bindings
(currently in PrimOpWrappers.hs) we don't need to eta-expand
them. But we /do/ need to eta-expand the levity-polymorphic ones,
because they /don't/ have bindings.
This patch makes a start in that direction, by identifying the
levity-polymophic primops in the PrimOpId IdDetails constructor.
For the moment, I'm still eta-expanding all primops (by saying
that hasNoBinding returns True for all primops), because of the
bug reported in #20155. But I hope that before long we can
tidy that up too, and remove the TEMPORARILY stuff in hasNoBinding.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6656f0165a30fc2a22208532ba384fc8e2f11b46" style="color: #1068bf; text-decoration: none;">6656f016</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-05-30T13:44:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>A bunch of changes related to eta reduction
This is a large collection of changes all relating to eta
reduction, originally triggered by #18993, but there followed
a long saga.
Specifics:
* Move state-hack stuff from GHC.Types.Id (where it never belonged)
to GHC.Core.Opt.Arity (which seems much more appropriate).
* Add a crucial mkCast in the Cast case of
GHC.Core.Opt.Arity.eta_expand; helps with T18223
* Add clarifying notes about eta-reducing to PAPs.
See Note [Do not eta reduce PAPs]
* I moved tryEtaReduce from GHC.Core.Utils to GHC.Core.Opt.Arity,
where it properly belongs. See Note [Eta reduce PAPs]
* In GHC.Core.Opt.Simplify.Utils.tryEtaExpandRhs, pull out the code for
when eta-expansion is wanted, to make wantEtaExpansion, and all that
same function in GHC.Core.Opt.Simplify.simplStableUnfolding. It was
previously inconsistent, but it's doing the same thing.
* I did a substantial refactor of ArityType; see Note [ArityType].
This allowed me to do away with the somewhat mysterious takeOneShots;
more generally it allows arityType to describe the function, leaving
its clients to decide how to use that information.
I made ArityType abstract, so that clients have to use functions
to access it.
* Make GHC.Core.Opt.Simplify.Utils.rebuildLam (was stupidly called
mkLam before) aware of the floats that the simplifier builds up, so
that it can still do eta-reduction even if there are some floats.
(Previously that would not happen.) That means passing the floats
to rebuildLam, and an extra check when eta-reducting (etaFloatOk).
* In GHC.Core.Opt.Simplify.Utils.tryEtaExpandRhs, make use of call-info
in the idDemandInfo of the binder, as well as the CallArity info. The
occurrence analyser did this but we were failing to take advantage here.
In the end I moved the heavy lifting to GHC.Core.Opt.Arity.findRhsArity;
see Note [Combining arityType with demand info], and functions
idDemandOneShots and combineWithDemandOneShots.
(These changes partly drove my refactoring of ArityType.)
* In GHC.Core.Opt.Arity.findRhsArity
* I'm now taking account of the demand on the binder to give
extra one-shot info. E.g. if the fn is always called with two
args, we can give better one-shot info on the binders
than if we just look at the RHS.
* Don't do any fixpointing in the non-recursive
case -- simple short cut.
* Trim arity inside the loop. See Note [Trim arity inside the loop]
* Make SimpleOpt respect the eta-reduction flag
(Some associated refactoring here.)
* I made the CallCtxt which the Simplifier uses distinguish between
recursive and non-recursive right-hand sides.
data CallCtxt = ... | RhsCtxt RecFlag | ...
It affects only one thing:
- We call an RHS context interesting only if it is non-recursive
see Note [RHS of lets] in GHC.Core.Unfold
* Remove eta-reduction in GHC.CoreToStg.Prep, a welcome simplification.
See Note [No eta reduction needed in rhsToBody] in GHC.CoreToStg.Prep.
Other incidental changes
* Fix a fairly long-standing outright bug in the ApplyToVal case of
GHC.Core.Opt.Simplify.mkDupableContWithDmds. I was failing to take the
tail of 'dmds' in the recursive call, which meant the demands were All
Wrong. I have no idea why this has not caused problems before now.
* Delete dead function GHC.Core.Opt.Simplify.Utils.contIsRhsOrArg
Metrics: compile_time/bytes allocated
Test Metric Baseline New value Change
---------------------------------------------------------------------------------------
MultiLayerModulesTH_OneShot(normal) ghc/alloc 2,743,297,692 2,619,762,992 -4.5% GOOD
T18223(normal) ghc/alloc 1,103,161,360 972,415,992 -11.9% GOOD
T3064(normal) ghc/alloc 201,222,500 184,085,360 -8.5% GOOD
T8095(normal) ghc/alloc 3,216,292,528 3,254,416,960 +1.2%
T9630(normal) ghc/alloc 1,514,131,032 1,557,719,312 +2.9% BAD
parsing001(normal) ghc/alloc 530,409,812 525,077,696 -1.0%
geo. mean -0.1%
Nofib:
Program Size Allocs Runtime Elapsed TotalMem
--------------------------------------------------------------------------------
banner +0.0% +0.4% -8.9% -8.7% 0.0%
exact-reals +0.0% -7.4% -36.3% -37.4% 0.0%
fannkuch-redux +0.0% -0.1% -1.0% -1.0% 0.0%
fft2 -0.1% -0.2% -17.8% -19.2% 0.0%
fluid +0.0% -1.3% -2.1% -2.1% 0.0%
gg -0.0% +2.2% -0.2% -0.1% 0.0%
spectral-norm +0.1% -0.2% 0.0% 0.0% 0.0%
tak +0.0% -0.3% -9.8% -9.8% 0.0%
x2n1 +0.0% -0.2% -3.2% -3.2% 0.0%
--------------------------------------------------------------------------------
Min -3.5% -7.4% -58.7% -59.9% 0.0%
Max +0.1% +2.2% +32.9% +32.9% 0.0%
Geometric Mean -0.0% -0.1% -14.2% -14.8% -0.0%
Metric Decrease:
MultiLayerModulesTH_OneShot
T18223
T3064
T15185
T14766
Metric Increase:
T9630
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cac8c7bb098002ddce0ef7c1e4429940d22d8cc2" style="color: #1068bf; text-decoration: none;">cac8c7bb</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-30T13:44:50-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Fix building from source-dist without alex/happy
This fixes two bugs which were adding dependencies on alex/happy when
building from a source dist.
* When we try to pass `--with-alex` and `--with-happy` to cabal when
configuring but the builders are not set. This is fixed by making them
optional.
* When we configure, cabal requires alex/happy because of the
build-tool-depends fields. These are now made optional with a cabal
flag (build-tool-depends) for compiler/hpc-bin/genprimopcode.
Fixes #21627
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a96dccfe8201542086a65d168ce6d6b9d302e2c2" style="color: #1068bf; text-decoration: none;">a96dccfe</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-30T13:44:50-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Test the bootstrap without ALEX/HAPPY on path
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0e5bb3a883cfc2faf8e36ff83d3d985e6f4ed93f" style="color: #1068bf; text-decoration: none;">0e5bb3a8</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-30T13:44:50-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Test bootstrapping in release jobs
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d8901469223bac82ed29cb9f5e5e42bf5e927f68" style="color: #1068bf; text-decoration: none;">d8901469</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-30T13:44:50-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Allow testing bootstrapping on MRs using the "test-bootstrap" label
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/18326ad29b315ed9f086672c38b2c8f611bc7d19" style="color: #1068bf; text-decoration: none;">18326ad2</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-30T13:45:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Remove explicit timescale for deprecating -h flag
We originally planned to remove the flag in 9.4 but there's actually no
great rush to do so and it's probably less confusing (forever) to keep
the message around suggesting an explicit profiling option.
Fixes #21545
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/eaaa1389bd8547a7595c2c11344c8024d9d46380" style="color: #1068bf; text-decoration: none;">eaaa1389</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-30T13:46:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Enable -dlint in hadrian lint transformer
Now #21563 is fixed we can properly enable `-dlint` in CI rather than a
subset of the flags.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0544f114a6aafa868d7a75f3fd77a9c5239be8d9" style="color: #1068bf; text-decoration: none;">0544f114</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-05-30T19:16:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>upload-ghc-libs: Allow candidate-only upload
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/83467435c4ea81daa7b97ed5d914f543f9e885a3" style="color: #1068bf; text-decoration: none;">83467435</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-05-30T19:17:35-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Avoid using DynFlags in GHC.Linker.Unit (#17957)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5c4421b1a2d45edfc31f2d37c8b4a47c619a424b" style="color: #1068bf; text-decoration: none;">5c4421b1</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-31T08:35:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Introduce new package database for executables needed to build stage0
These executables (such as hsc2hs) are built using the boot compiler and
crucially, most libraries from the global package database.
We also move other build-time executables to be built in this stage such
as linters which also cleans up which libraries end up in the global
package database. This allows us to remove hacks where linters-common is
removed from the package database when a bindist is created.
This fixes issues caused by infinite recursion due to bytestring adding
a dependency on template-haskell.
Fixes #21634
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0dafd3e7c73d9484b76a3b3f6ffc1f2f3ad09f7b" style="color: #1068bf; text-decoration: none;">0dafd3e7</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-31T08:35:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Build stage1 with -V as well
This helps tracing errors which happen when building stage1
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/15d42a7a1287b0466ea97bedf71f4a0b161b17b4" style="color: #1068bf; text-decoration: none;">15d42a7a</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-05-31T08:35:52-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Revert "packaging: Build perf builds with -split-sections"
This reverts commit 699f593532a3cd5ca1c2fab6e6e4ce9d53be2c1f.
Split sections causes segfaults in profiling way with old toolchains
(deb9) and on windows (#21670)
Fixes #21670
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d4c71f098f82b61b3dc1f056e0518c973fa51b68" style="color: #1068bf; text-decoration: none;">d4c71f09</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-05-31T16:26:28+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Purge `DynFlags` and `HscEnv` from some `GHC.Core` modules where it's not too hard
Progress towards #17957
Because of `CoreM`, I did not move the `DynFlags` and `HscEnv` to other
modules as thoroughly as I usually do. This does mean that risk of
`DynFlags` "creeping back in" is higher than it usually is.
After we do the same process to the other Core passes, and then figure
out what we want to do about `CoreM`, we can finish the job started
here.
That is a good deal more work, however, so it certainly makes sense to
land this now.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a720322f417547f85ae22b1930721e8cab8de281" style="color: #1068bf; text-decoration: none;">a720322f</a></strong>
<div>
<span>by romes</span>
<i>at 2022-06-01T07:44:44-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Restore Note [Quasi-quote overview]
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/392ce3fca5d33688add52309a05914efa163e6f6" style="color: #1068bf; text-decoration: none;">392ce3fc</a></strong>
<div>
<span>by romes</span>
<i>at 2022-06-01T07:44:44-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Move UntypedSpliceFlavour from L.H.S to GHC.Hs
UntypedSpliceFlavour was only used in the client-specific `GHC.Hs.Expr`
but was defined in the client-independent L.H.S.Expr.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7975202ba9010c581918413808ee06fbab9ac85f" style="color: #1068bf; text-decoration: none;">7975202b</a></strong>
<div>
<span>by romes</span>
<i>at 2022-06-01T07:44:44-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>TTG: Rework and improve splices
This commit redefines the structure of Splices in the AST.
We get rid of `HsSplice` which used to represent typed and untyped
splices, quasi quotes, and the result of splicing either an expression,
a type or a pattern.
Instead we have `HsUntypedSplice` which models an untyped splice or a
quasi quoter, which works in practice just like untyped splices.
The `HsExpr` constructor `HsSpliceE` which used to be constructed with
an `HsSplice` is split into `HsTypedSplice` and `HsUntypedSplice`. The
former is directly constructed with an `HsExpr` and the latter now takes
an `HsUntypedSplice`.
Both `HsType` and `Pat` constructors `HsSpliceTy` and `SplicePat` now
take an `HsUntypedSplice` instead of a `HsSplice` (remember only
/untyped splices/ can be spliced as types or patterns).
The result of splicing an expression, type, or pattern is now
comfortably stored in the extension fields `XSpliceTy`, `XSplicePat`,
`XUntypedSplice` as, respectively, `HsUntypedSpliceResult (HsType
GhcRn)`, `HsUntypedSpliceResult (Pat GhcRn)`, and `HsUntypedSpliceResult
(HsExpr GhcRn)`
Overall the TTG extension points are now better used to
make invalid states unrepresentable and model the progression between
stages better.
See Note [Lifecycle of an untyped splice, and PendingRnSplice]
and Note [Lifecycle of an typed splice, and PendingTcSplice] for more
details.
Updates haddock submodule
Fixes #21263
-------------------------
Metric Decrease:
hard_hole_fits
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/320270c2a1cb51fb02f713f80083eb9eff488c31" style="color: #1068bf; text-decoration: none;">320270c2</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-06-01T07:44:44-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add test for #21619
Fixes #21619
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ef7ddd7348070a9149d162217280c0a50f2b213d" style="color: #1068bf; text-decoration: none;">ef7ddd73</a></strong>
<div>
<span>by Pierre Le Marre</span>
<i>at 2022-06-01T07:44:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Pure Haskell implementation of GHC.Unicode
Switch to a pure Haskell implementation of base:GHC.Unicode, based on the implementation of the package unicode-data (https://github.com/composewell/unicode-data/).
Approved by CLC as per https://github.com/haskell/core-libraries-committee/issues/59#issuecomment-1132106691.
- Remove current Unicode cbits.
- Add generator for Unicode property files from Unicode Character Database.
- Generate internal modules.
- Update GHC.Unicode.
- Add unicode003 test for general categories and case mappings.
- Add Python scripts to check 'base' Unicode tests outputs and characters properties.
Fixes #21375
-------------------------
Metric Decrease:
T16875
Metric Increase:
T4029
T18304
haddock.base
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/514a6a28db16793d6d2ca8fe7863e82943f56374" style="color: #1068bf; text-decoration: none;">514a6a28</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-06-01T07:44:51-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>typos
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9004be3cb19d914fa723082d35689afabede796b" style="color: #1068bf; text-decoration: none;">9004be3c</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-06-01T07:44:52-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>source-dist: Copy in files created by ./boot
Since we started producing source dists with hadrian we stopped copying
in the files created by ./boot which adds a dependency on python3 and
autoreconf. This adds back in the files which were created by running
configure.
Fixes #21673 #21672 and #21626
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a12a3cab7a58549cb1965872da8d9c10402b962d" style="color: #1068bf; text-decoration: none;">a12a3cab</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-06-01T07:44:52-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Don't try to run ./boot when testing bootstrap of source dist
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e07f9059e90ed7f0dd48a21e653943e16aec30a6" style="color: #1068bf; text-decoration: none;">e07f9059</a></strong>
<div>
<span>by Shlomo Shuck</span>
<i>at 2022-06-01T07:44:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Language.Haskell.Syntax: Fix docs for PromotedConsT etc.
Fixes ghc/ghc#21675.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/87295e6dfcd40c8f29367df09c3106280d4b0f09" style="color: #1068bf; text-decoration: none;">87295e6d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-01T07:44:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump bytestring, process, and text submodules
Metric Decrease:
T5631
Metric Increase:
T18223
(cherry picked from commit 55fcee30cb3281a66f792e8673967d64619643af)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/24b5bb61c33b2675bdfb09504aeec88e70ac3abf" style="color: #1068bf; text-decoration: none;">24b5bb61</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-01T07:44:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump Cabal submodule
To current `master`.
(cherry picked from commit fbb59c212415188486aafd970eafef170516356a)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5433a35e28e2487827b88f2396865c29ecee0833" style="color: #1068bf; text-decoration: none;">5433a35e</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-06-01T22:26:30-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian/tool-args: Write output to intermediate file rather than via stdout
This allows us to see the output of hadrian while it is doing the setup.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/468f919b1bd27d8a58a789a6bb1be4295097388c" style="color: #1068bf; text-decoration: none;">468f919b</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-06-01T22:27:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make -fcompact-unwind the default
This is a follow-up to !7247 (closed) making the inclusion of compact unwinding
sections the default.
Also a slight refactoring/simplification of the flag handling to add
-fno-compact-unwind.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/819fdc615503ea1c7caec5057b174aee49566ecf" style="color: #1068bf; text-decoration: none;">819fdc61</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-06-01T22:27:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian bootstrap: add plans for 9.0.2 and 9.2.3
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9fa790b4b33fe75c86ed7a3032eecd35774eb21e" style="color: #1068bf; text-decoration: none;">9fa790b4</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-06-01T22:27:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Add matrix for bootstrap sources
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ce9f986b0a1b77a13ee6ee613c557ef007d20a1e" style="color: #1068bf; text-decoration: none;">ce9f986b</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-06-02T15:42:59+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>HsToCore.Coverage: Improve haddocks
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f065804eb7afa8a7902ccc779cf2c9fae520f956" style="color: #1068bf; text-decoration: none;">f065804e</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-06-02T15:42:59+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Hoist auto `mkModBreaks` and `writeMixEntries` conditions to caller
No need to inline traversing a maybe for `mkModBreaks`. And better to
make each function do one thing and let the caller deside when than
scatter the decision making and make the caller seem more imperative.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d550d9079d6518938a2e41622b1c3ebf1fb24f59" style="color: #1068bf; text-decoration: none;">d550d907</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-06-02T15:42:59+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Rename `HsToCore.{Coverage -> Ticks}`
The old name made it confusing why disabling HPC didn't disable the
entire pass. The name makes it clear --- there are other reasons to add
ticks in addition.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6520da955ec003b3f7ba931e81df4c4f9873f185" style="color: #1068bf; text-decoration: none;">6520da95</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-06-02T15:42:59+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Split out `GHC.HsToCore.{Breakpoints,Coverage}` and use `SizedSeq`
As proposed in
https://gitlab.haskell.org/ghc/ghc/-/merge_requests/7508#note_432877 and
https://gitlab.haskell.org/ghc/ghc/-/merge_requests/7508#note_434676,
`GHC.HsToCore.Ticks` is about ticks, breakpoints are separate and
backend-specific (only for the bytecode interpreter), and mix entry
writing is just for HPC.
With this split we separate out those interpreter- and HPC-specific
its, and keep the main `GHC.HsToCore.Ticks` agnostic.
Also, instead of passing the reversed list and count around, we use
`SizedSeq` which abstracts over the algorithm. This is much nicer to
avoid noise and prevents bugs.
(The bugs are not just hypothetical! I missed up the reverses on an
earlier draft of this commit.)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1838c3d8ed53bdd6750037f5cbbce771369820d5" style="color: #1068bf; text-decoration: none;">1838c3d8</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-06-02T15:43:14+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>GHC.HsToCore.Breakpoints: Slightly improve perf
We have the length already, so we might as well use that rather than
O(n) recomputing it.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5a3fdcfd615b502f123bb31f42d22577d44748ac" style="color: #1068bf; text-decoration: none;">5a3fdcfd</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-06-02T15:43:59+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>HsToCore.Coverage: Purge DynFlags
Finishes what !7467 (closed) started.
Progress towards #17957
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9ce9ea5071af5c7a5b6fcef11ac6e19c14480901" style="color: #1068bf; text-decoration: none;">9ce9ea50</a></strong>
<div>
<span>by HaskellMouse</span>
<i>at 2022-06-06T09:50:00-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Deprecate TypeInType extension
This commit fixes #20312
It deprecates "TypeInType" extension
according to the following proposal:
https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0083-no-type-in-type.rst
It has been already implemented.
The migration strategy:
1. Disable TypeInType
2. Enable both DataKinds and PolyKinds extensions
Metric Decrease:
T16875
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f2e037fd453a13e15cca487e37c21ce3c8756007" style="color: #1068bf; text-decoration: none;">f2e037fd</a></strong>
<div>
<span>by Aaron Allen</span>
<i>at 2022-06-06T09:50:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Diagnostics conversions, part 6 (#20116)
Replaces uses of `TcRnUnknownMessage` with proper diagnostics
constructors in `GHC.Tc.Gen.Match`, `GHC.Tc.Gen.Pat`, and
`GHC.Tc.Gen.Sig`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/04209f2a6a49f6cdc116b5cb73ccd1749c90f88b" style="color: #1068bf; text-decoration: none;">04209f2a</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-06-06T09:51:15-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Ensure floated dictionaries are in scope (again)
In the Specialiser, we missed one more call to
bringFloatedDictsIntoScope (see #21391).
This omission led to #21689. The problem is that the call
to `rewriteClassOps` needs to have in scope any dictionaries
floated out of the arguments we have just specialised.
Easy fix.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a7fece19cb56b6aa3ae7f81d1a34276ad55fdf2a" style="color: #1068bf; text-decoration: none;">a7fece19</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-06-07T05:04:22+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Don't print the number of deps in count-deps tests
It is redundant information and a source of needless version control
conflicts when multiple MRs are changing the deps list.
Just printing the list and not also its length is fine.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a1651a3afab9b195440436432385d839abb7d389" style="color: #1068bf; text-decoration: none;">a1651a3a</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-06-07T05:06:38+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Core.Lint: Reduce `DynFlags` and `HscEnv`
Co-Authored-By: Andre Marianiello <andremarianiello@users.noreply.github.com>
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/56ebf9a5bfc8791c1fa609b960f3c161882540e3" style="color: #1068bf; text-decoration: none;">56ebf9a5</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-06-09T09:11:43-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix a CSE shadowing bug.
We used to process the rhs of non-recursive bindings and their body
using the same env. If we had something like
let x = ... x ...
this caused trouble because the two xs refer to different binders
but we would substitute both for a new binder x2 causing out of scope
errors.
We now simply use two different envs for the rhs and body in cse_bind.
It's all explained in the Note [Separate envs for let rhs and body]
Fixes #21685
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/28880828182a32bcb39ce8230965a8bc17aeb218" style="color: #1068bf; text-decoration: none;">28880828</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-06-09T09:12:19-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Typecheck remaining ValArgs in rebuildHsApps
This patch refactors hasFixedRuntimeRep_remainingValArgs, renaming it
to tcRemainingValArgs. The logic is moved to rebuildHsApps, which
ensures consistent behaviour across tcApp and quickLookArg1/tcEValArg.
This patch also refactors the treatment of stupid theta for data
constructors, changing the place we drop stupid theta arguments
from dsConLike to mkDataConRep (now the datacon wrapper drops these
arguments).
We decided not to implement PHASE 2 of the FixedRuntimeRep plan for
these remaining ValArgs. Future directions are outlined on the wiki:
https://gitlab.haskell.org/ghc/ghc/-/wikis/Remaining-ValArgs
Fixes #21544 and #21650
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1fbba97b17d7bbfada0d9620d126f84b8d57be2d" style="color: #1068bf; text-decoration: none;">1fbba97b</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-06-09T09:12:54-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add test for T21682
Fixes #21682
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8727be73296c16c11e01f42691ea27738436b28b" style="color: #1068bf; text-decoration: none;">8727be73</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-06-09T09:13:29-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Document dataToTag# primop
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7eab75bb2d176ea09de535be17130dc9dae42a02" style="color: #1068bf; text-decoration: none;">7eab75bb</a></strong>
<div>
<span>by uhbif19</span>
<i>at 2022-06-09T20:22:47+03:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove TcRnUnknownMessage usage from GHC.Rename.Env #20115
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/46d2fc65fd1eaf3284dc01a2fcebcef2cce4bee3" style="color: #1068bf; text-decoration: none;">46d2fc65</a></strong>
<div>
<span>by uhbif19</span>
<i>at 2022-06-09T20:24:40+03:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix TcRnPragmaWarning meaning
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/69e72ecda720d10308516366044952ddd6290e7e" style="color: #1068bf; text-decoration: none;">69e72ecd</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-06-09T19:07:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>getProcessCPUTime: Fix the getrusage fallback to account for system CPU time
clock_gettime reports the combined total or user AND system time so in
order to replicate it with getrusage we need to add both system and user
time together.
See https://stackoverflow.com/questions/7622371/getrusage-vs-clock-gettime
Some sample measurements when building Cabal with this patch
t1: rusage
t2: clock_gettime
t1: 62347518000; t2: 62347520873
t1: 62395687000; t2: 62395690171
t1: 62432435000; t2: 62432437313
t1: 62478489000; t2: 62478492465
t1: 62514990000; t2: 62514992534
t1: 62515479000; t2: 62515480327
t1: 62515485000; t2: 62515486344
Fixes #21656
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/722814ba43af29ea863ed699ec706c89286046b1" style="color: #1068bf; text-decoration: none;">722814ba</a></strong>
<div>
<span>by Yiyun Liu</span>
<i>at 2022-06-10T21:23:03-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use <br> instead of newline character
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dc202080d6cb26bab38233266d539b626258cd2c" style="color: #1068bf; text-decoration: none;">dc202080</a></strong>
<div>
<span>by Matthew Craven</span>
<i>at 2022-06-13T14:07:12-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use (fixed_lev = True) in mkDataTyConRhs
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ad70c621c4ca2c99232c3711050a6ab88184a10a" style="color: #1068bf; text-decoration: none;">ad70c621</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-06-14T08:40:53-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Fix testing stage1 compiler
There were various issues with testing the stage1 compiler..
1. The wrapper was not being built
2. The wrapper was picking up the stage0 package database and trying to
load prelude from that.
3. The wrappers never worked on windows so just don't support that for
now.
Fixes #21072
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ac83899dcb5931913699d191f2c46780483ed07e" style="color: #1068bf; text-decoration: none;">ac83899d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-14T08:41:30-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>validate: Ensure that $make variable is set
Currently the `$make` variable is used without being set in `validate`'s
Hadrian path, which uses make to install the binary distribution. Fix
this.
Fixes #21687.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/59bc600871eb23d3cf83025a3c05dbb3a14b033a" style="color: #1068bf; text-decoration: none;">59bc6008</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-06-15T18:05:35+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CoreToStg.Prep: Get rid of `DynFlags` and `HscEnv`
The call sites in `Driver.Main` are duplicative, but this is good,
because the next step is to remove `InteractiveContext` from `Core.Lint`
into `Core.Lint.Interactive`.
Also further clean up `Core.Lint` to use a better configuration record
than the one we initially added.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/aa9d9381e5c5d7b96966d817372085897585ecdd" style="color: #1068bf; text-decoration: none;">aa9d9381</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-15T20:33:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Run xattr -rc . on bindist tarball
Fixes #21506.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cdc75a1fedfa3c0f6b3fb365247e7fbc53b9147b" style="color: #1068bf; text-decoration: none;">cdc75a1f</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-15T20:33:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>configure: Hide spurious warning from ld
Previously the check_for_gold_t22266 configure check could result in
spurious warnings coming from the linker being blurted to stderr.
Suppress these by piping stderr to /dev/null.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e128b7b8a139a1b952aa409811f181572f5b607b" style="color: #1068bf; text-decoration: none;">e128b7b8</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-15T20:33:40-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>cmm: Add surface syntax for MO_MulMayOflo
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bde65ea90ed61696eefc93c83efddf7af68d413e" style="color: #1068bf; text-decoration: none;">bde65ea9</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-15T20:34:16-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>configure: Don't attempt to override linker on Darwin
Configure's --enable-ld-override functionality is intended to ensure
that we don't rely on ld.bfd, which tends to be slow and buggy, on
Linux and Windows. However, on Darwin the lack of sensible package
management makes it extremely easy for users to have awkward mixtures of
toolchain components from, e.g., XCode, the Apple Command-Line Tools
package, and homebrew. This leads to extremely confusing problems
like #21712.
Here we avoid this by simply giving up on linker selection on Darwin
altogether. This isn't so bad since the Apple ld64 linker has decent
performance and AFAICT fairly reliable.
Closes #21712.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/25b510c3ffdb6f43695c31c0740a5cbe1b7f3898" style="color: #1068bf; text-decoration: none;">25b510c3</a></strong>
<div>
<span>by Torsten Schmits</span>
<i>at 2022-06-16T12:37:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>replace quadratic nub to fight byte code gen perf explosion
Despite this code having been present in the core-to-bytecode
implementation, I have observed it in the wild starting with 9.2,
causing enormous slowdown in certain situations.
My test case produces the following profiles:
Before:
```
total time = 559.77 secs (559766 ticks @ 1000 us, 1 processor)
total alloc = 513,985,665,640 bytes (excludes profiling overheads)
COST CENTRE MODULE SRC %time %alloc ticks bytes
elem_by Data.OldList libraries/base/Data/OldList.hs:429:1-7 67.6 92.9 378282 477447404296
eqInt GHC.Classes libraries/ghc-prim/GHC/Classes.hs:275:8-14 12.4 0.0 69333 32
$c>>= GHC.Data.IOEnv <no location info> 6.9 0.6 38475 3020371232
```
After:
```
total time = 89.83 secs (89833 ticks @ 1000 us, 1 processor)
total alloc = 39,365,306,360 bytes (excludes profiling overheads)
COST CENTRE MODULE SRC %time %alloc ticks bytes
$c>>= GHC.Data.IOEnv <no location info> 43.6 7.7 39156 3020403424
doCase GHC.StgToByteCode compiler/GHC/StgToByteCode.hs:(805,1)-(1054,53) 2.5 7.4 2246 2920777088
```
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/aa7e1f209ddf3dba66b3b212bf2089986c10023e" style="color: #1068bf; text-decoration: none;">aa7e1f20</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-06-16T12:38:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Don't install `include/` directory in bindist.
The install_includes for the RTS package used to be put in the top-level
./include folder but this would lead to confusing things happening if
you installed multiple GHC versions side-by-side.
We don't need this folder anymore because install-includes
is honoured properly by cabal and the relevant header files already
copied in by the cabal installation process.
If you want to depend on the header files for the RTS in a Haskell
project then you just have to depend on the `rts` package and the
correct include directories will be provided for you.
If you want to depend on the header files in a standard C project then
you should query ghc-pkg to get the right paths.
```
ghc-pkg field rts include-dirs --simple-output
```
Fixes #21609
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/031721163eb6e713dd67e1ac512ae137c57ba1c2" style="color: #1068bf; text-decoration: none;">03172116</a></strong>
<div>
<span>by Bryan Richter</span>
<i>at 2022-06-16T12:38:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Enable eventlogs on nightly perf job
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ecbf86853acd64ea1ee1756216233662a0bdb80e" style="color: #1068bf; text-decoration: none;">ecbf8685</a></strong>
<div>
<span>by Hécate Moonlight</span>
<i>at 2022-06-16T16:30:00-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Repair dead link in TH haddocks
Closes #21724
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/99ff3818ad016dc30a044043fff682660dc56dfa" style="color: #1068bf; text-decoration: none;">99ff3818</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-06-16T16:30:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Hadrian: allow configuring Hsc2Hs
This patch adds the ability to pass options to Hsc2Hs as Hadrian
key/value settings, in the same way as cabal configure options,
using the syntax:
*.*.hsc2hs.run.opts += ...
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9c575f24d41fed616e6f96fcbb4fa9a9687497a6" style="color: #1068bf; text-decoration: none;">9c575f24</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-06-16T16:30:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Hadrian bootstrap: look up hsc2hs
Hadrian bootstrapping looks up where to find ghc_pkg, but the same
logic was not in place for hsc2hs which meant we could fail to
find the appropriate hsc2hs executabe when bootstrapping Hadrian.
This patch adds that missing logic.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/229d741f9907f0a07c475291fe3b1dbfcfea7aab" style="color: #1068bf; text-decoration: none;">229d741f</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-18T10:42:54-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ghc-heap: Add (broken) test for #21622
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cadd775397a88889bb6be6aca34469eea8ba17ec" style="color: #1068bf; text-decoration: none;">cadd7753</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-18T10:42:54-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ghc-heap: Don't Box NULL pointers
Previously we could construct a `Box` of a NULL pointer from the `link`
field of `StgWeak`. Now we take care to avoid ever introducing such
pointers in `collect_pointers` and ensure that the `link` field is
represented as a `Maybe` in the `Closure` type.
Fixes #21622
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/31c214cc9d3873b7d1bf4751700cc6c7da09e11d" style="color: #1068bf; text-decoration: none;">31c214cc</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2022-06-18T10:43:34-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>winio: Add support to console handles to handleToHANDLE
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/711cb417606e351ea525d7a322b591b3b0e23bdd" style="color: #1068bf; text-decoration: none;">711cb417</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-18T10:44:11-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CmmToAsm/AArch64: Add SMUL[LH] instructions
These will be needed to fix #21624.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d05d90d26d0820d4d24c461888bcd1993ebef36c" style="color: #1068bf; text-decoration: none;">d05d90d2</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-18T10:44:11-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CmmToAsm/AArch64: Fix syntax of OpRegShift operands
Previously this produced invalid assembly containing a redundant comma.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a1e1d8eecceaa2fa64668376d5ea44990d94a3ea" style="color: #1068bf; text-decoration: none;">a1e1d8ee</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-18T10:44:11-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ncg/aarch64: Fix implementation of IntMulMayOflo
The code generated for IntMulMayOflo was previously wrong as it
depended upon the overflow flag, which the AArch64 MUL instruction does
not set. Fix this.
Fixes #21624.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/26745006bdecc2d269fd8252b189650d6bd7ac10" style="color: #1068bf; text-decoration: none;">26745006</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-18T10:44:11-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Add test for #21624
Ensuring that mulIntMayOflo# behaves as expected.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/94f2e92a2510a3338c5201a4dcc69666fa9575f8" style="color: #1068bf; text-decoration: none;">94f2e92a</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-06-20T09:40:58+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CprAnal: Set signatures of DFuns to top
The recursive DFun in the reproducer for #20836 also triggered a bug in CprAnal
that is observable in a debug build. The CPR signature of a recursive DFunId
was never updated and hence the optimistic arity 0 bottom signature triggered a
mismatch with the arity 1 of the binding in WorkWrap. We never miscompiled any
code because WW doesn't exploit bottom CPR signatures.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b570da84b7aad5ca3f90f2d1c1a690c927e99fe9" style="color: #1068bf; text-decoration: none;">b570da84</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-06-20T09:43:29+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CorePrep: Don't speculatively evaluate recursive calls (#20836)
In #20836 we have optimised a terminating program into an endless loop,
because we speculated the self-recursive call of a recursive DFun.
Now we track the set of enclosing recursive binders in CorePrep to prevent
speculation of such self-recursive calls.
See the updates to Note [Speculative evaluation] for details.
Fixes #20836.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/49fb2f9b16ca987648d2ac57eecf1892d49852ec" style="color: #1068bf; text-decoration: none;">49fb2f9b</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-06-20T09:43:32+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Simplify: Take care with eta reduction in recursive RHSs (#21652)
Similar to the fix to #20836 in CorePrep, we now track the set of enclosing
recursive binders in the SimplEnv and SimpleOptEnv.
See Note [Eta reduction in recursive RHSs] for details.
I also updated Note [Arity robustness] with the insights Simon and I had in a
call discussing the issue.
Fixes #21652.
Unfortunately, we get a 5% ghc/alloc regression in T16577. That is due to
additional eta reduction in GHC.Read.choose1 and the resulting ANF-isation
of a large list literal at the top-level that didn't happen before (presumably
because it was too interesting to float to the top-level). There's not much we
can do about that.
Metric Increase:
T16577
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2563b95cda983cd6be23a5be01fe1f1873f1fa4f" style="color: #1068bf; text-decoration: none;">2563b95c</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-06-20T09:45:09+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Ignore .hie-bios
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e4e44d8d54518fa88318e9f5ebe109839f6c180a" style="color: #1068bf; text-decoration: none;">e4e44d8d</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-06-20T12:31:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Instantiate top level foralls in partial type signatures
The main fix for #21667 is the new call to tcInstTypeBnders
in tcHsPartialSigType. It was really a simple omission before.
I also moved the decision about whether we need to apply the
Monomorphism Restriction, from `decideGeneralisationPlan` to
`tcPolyInfer`. That removes a flag from the InferGen constructor,
which is good.
But more importantly, it allows the new function,
checkMonomorphismRestriction
called from `tcPolyInfer`, to "see" the `Types` involved rather than
the `HsTypes`. And that in turn matters because we invoke the MR for
partial signatures if none of the partial signatures in the group have
any overloading context; and we can't answer that question for HsTypes.
See Note [Partial type signatures and the monomorphism restriction]
in GHC.Tc.Gen.Bind.
This latter is really a pre-existing bug.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/262a9f93e84ffacd6540e72e941e3cc69cf87807" style="color: #1068bf; text-decoration: none;">262a9f93</a></strong>
<div>
<span>by Winston Hartnett</span>
<i>at 2022-06-20T12:32:23-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make Outputable instance for InlineSig print the InlineSpec
Fix ghc/ghc#21739
Squash fix ghc/ghc#21739
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b5590fff75496356b1817adc9de1f2d361a70dc5" style="color: #1068bf; text-decoration: none;">b5590fff</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-06-20T12:32:59-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add NO_BOOT to hackage_doc_tarball job
We were attempting to boot a src-tarball which doesn't work as ./boot is
not included in the source tarball. This slipped through as the job is
only run on nightly.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d24afd9d7139d7a62f3b465af1be50b25c15e5b5" style="color: #1068bf; text-decoration: none;">d24afd9d</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2022-06-20T17:34:44-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>HsToken for @-patterns and TypeApplications (#19623)
One more step towards the new design of EPA.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/159b76282e50a138250557baa6aa4ed7cf031070" style="color: #1068bf; text-decoration: none;">159b7628</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2022-06-20T17:35:23-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>linker: only keep rtl exception tables if they have been relocated
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/da5ff10503e683e2148c62e36f8fe2f819328862" style="color: #1068bf; text-decoration: none;">da5ff105</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-06-21T17:04:12+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Ticky:Make json info a separate field.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1a4ce4b27623b3bcde8a02f0bd43402fbd78ff8a" style="color: #1068bf; text-decoration: none;">1a4ce4b2</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-06-22T09:49:22+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Revert "Ticky:Make json info a separate field."
This reverts commit da5ff10503e683e2148c62e36f8fe2f819328862.
This was pushed directly without review.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f89bf85fcedb595f457dee2c7ef50a15cc958c1a" style="color: #1068bf; text-decoration: none;">f89bf85f</a></strong>
<div>
<span>by Vanessa McHale</span>
<i>at 2022-06-22T08:21:32-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Flags to disable local let-floating; -flocal-float-out, -flocal-float-out-top-level CLI flags
These flags affect the behaviour of local let floating.
If `-flocal-float-out` is disabled (the default) then we disable all
local floating.
```
…(let x = let y = e in (a,b) in body)...
===>
…(let y = e; x = (a,b) in body)...
```
Further to this, top-level local floating can be disabled on it's own by
passing -fno-local-float-out-top-level.
```
x = let y = e in (a,b)
===>
y = e; x = (a,b)
```
Note that this is only about local floating, ie, floating two adjacent
lets past each other and doesn't say anything about the global floating
pass which is controlled by `-fno-float`.
Fixes #13663
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4ccefc6ea83073319c59690e340916175087dace" style="color: #1068bf; text-decoration: none;">4ccefc6e</a></strong>
<div>
<span>by Matthew Craven</span>
<i>at 2022-06-22T08:22:12-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Check for Int overflows in Data.Array.Byte
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2004e3c87b6b1e486d83fefb6d187039ad461093" style="color: #1068bf; text-decoration: none;">2004e3c8</a></strong>
<div>
<span>by Matthew Craven</span>
<i>at 2022-06-22T08:22:12-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add a basic test for ByteArray's Monoid instance
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fb36770c8302c8ac163d53dca35af29b2f5676b4" style="color: #1068bf; text-decoration: none;">fb36770c</a></strong>
<div>
<span>by Matthew Craven</span>
<i>at 2022-06-22T08:22:12-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Rename `copyByteArray` to `unsafeCopyByteArray`
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ecc9aedc1f199a1a7ad8ab3babcc080f414d0978" style="color: #1068bf; text-decoration: none;">ecc9aedc</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-22T08:22:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Add test for #21719
Happily, this has been fixed since 9.2.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/19606c4208db191165285b79ebc1efe7fb7f4ae4" style="color: #1068bf; text-decoration: none;">19606c42</a></strong>
<div>
<span>by Brandon Chinn</span>
<i>at 2022-06-22T08:23:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use lookupNameCache instead of lookupOrigIO
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4c9dfd69621c85abad70764359af2fd87138b335" style="color: #1068bf; text-decoration: none;">4c9dfd69</a></strong>
<div>
<span>by Brandon Chinn</span>
<i>at 2022-06-22T08:23:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Break out thNameToGhcNameIO (ref. #21730)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/eb4fb8493823d9b962c26507d01a921dca8b8857" style="color: #1068bf; text-decoration: none;">eb4fb849</a></strong>
<div>
<span>by Michael Peyton Jones</span>
<i>at 2022-06-22T08:24:07-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add laws for 'toInteger' and 'toRational'
CLC discussion here:
https://github.com/haskell/core-libraries-committee/issues/58
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c1a950c1ea6f22a1d837389c02ba83122cb5c160" style="color: #1068bf; text-decoration: none;">c1a950c1</a></strong>
<div>
<span>by Alexander Esgen</span>
<i>at 2022-06-22T12:36:13+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Correct documentation of defaults of the `-V` RTS option
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b7b7d90d0522e17f0401908e6a5649402a37a072" style="color: #1068bf; text-decoration: none;">b7b7d90d</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-06-22T21:58:12-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Transcribe discussion from #21483 into a Note
In #21483 I had a discussion with Simon Marlow about the memory
retention behaviour of -Fd. I have just transcribed that conversation
here as it elucidates the potentially subtle assumptions which led to
the design of the memory retention behaviours of -Fd.
Fixes #21483
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/980d19547fe3d4e3f03e7d0d35dd4c18b6aa6506" style="color: #1068bf; text-decoration: none;">980d1954</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-22T21:58:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>eventlog: Don't leave dangling pointers hanging around
Previously we failed to reset pointers to various eventlog buffers to
NULL after freeing them. In principle we shouldn't look at them after
they are freed but nevertheless it is good practice to set them to a
well-defined value.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/575ec84679e59a7ca4e7f65b672b403f8032fb21" style="color: #1068bf; text-decoration: none;">575ec846</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-06-22T21:59:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>runhaskell</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e6a69337ff54d0800ddf78f40f551559479502e8" style="color: #1068bf; text-decoration: none;">e6a69337</a></strong>
<div>
<span>by Artem Pelenitsyn</span>
<i>at 2022-06-22T22:00:07-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>re-export GHC.Natural.minusNaturalMaybe from Numeric.Natural
CLC proposal: https://github.com/haskell/core-libraries-committee/issues/45
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5d45aa97d0a7f4c5994bf942b0774505bd799714" style="color: #1068bf; text-decoration: none;">5d45aa97</a></strong>
<div>
<span>by Gergo ERDI</span>
<i>at 2022-06-22T22:00:46-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>When specialising, look through floatable ticks.
Fixes #21697.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/531205ac090be2dc0c544c1a34c6d3b665aa558a" style="color: #1068bf; text-decoration: none;">531205ac</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-06-22T22:01:22-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>TagCheck.hs: Properly check if arguments are boxed types.
For one by mistake I had been checking against the kind of runtime rep
instead of the boxity.
This uncovered another bug, namely that we tried to generate the
checking code before we had associated the function arguments with
a register, so this could never have worked to begin with.
This fixes #21729 and both of the above issues.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c7f9f6b547f502a20602ea33fdef893367efe476" style="color: #1068bf; text-decoration: none;">c7f9f6b5</a></strong>
<div>
<span>by Gleb Popov</span>
<i>at 2022-06-22T22:02:00-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use correct arch for the FreeBSD triple in gen-data-layout.sh
Downstream bug for reference: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=261798
Relevant upstream issue: #15718
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/75f0091bc59437c96fc076a31f389735f7302c9a" style="color: #1068bf; text-decoration: none;">75f0091b</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-06-22T22:02:35-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump nofib submodule.
Allows the shake runner to build with 9.2.3 among other things.
Fixes #21772
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0aa0ce69d835e2fef49cbd2d8f344182c07adc63" style="color: #1068bf; text-decoration: none;">0aa0ce69</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-27T08:01:03-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump ghc-prim and base versions
To 0.9.0 and 4.17.0 respectively.
Bumps array, deepseq, directory, filepath, haskeline, hpc, parsec, stm,
terminfo, text, unix, haddock, and hsc2hs submodules.
(cherry picked from commit ba47b95122b7b336ce1cc00896a47b584ad24095)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4713abc269953d37ca8c94eafb1d3b9968441ac8" style="color: #1068bf; text-decoration: none;">4713abc2</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-27T08:01:03-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Use normalise_version more consistently
Previously several tests' output were unnecessarily dependent on version
numbers, particularly of `base`. Fix this.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d7b0642beb31799b0290ed87f3b731ab70a2617f" style="color: #1068bf; text-decoration: none;">d7b0642b</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-06-27T08:01:03-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>linters: Fix lint-submodule-refs when crashing trying to find plausible branches
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/38378be3506f0d4f597fcd5aa2d9db3124fbf535" style="color: #1068bf; text-decoration: none;">38378be3</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-06-27T08:01:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Improve haddocks for ghcDebugAssertions
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ac7a7fc88b51f9fb4e84499397e12eb0081ba79e" style="color: #1068bf; text-decoration: none;">ac7a7fc8</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-06-27T08:01:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Don't mark lambda binders as OtherCon
We used to put OtherCon unfoldings on lambda binders of workers
and sometimes also join points/specializations with with the
assumption that since the wrapper would force these arguments
once we execute the RHS they would indeed be in WHNF.
This was wrong for reasons detailed in #21472. So now we purge
evaluated unfoldings from *all* lambda binders.
This fixes #21472, but at the cost of sometimes not using as efficient a
calling convention. It can also change inlining behaviour as some
occurances will no longer look like value arguments when they did
before.
As consequence we also change how we compute CBV information for
arguments slightly. We now *always* determine the CBV convention
for arguments during tidy. Earlier in the pipeline we merely mark
functions as candidates for having their arguments treated as CBV.
As before the process is described in the relevant notes:
Note [CBV Function Ids]
Note [Attaching CBV Marks to ids]
Note [Never put `OtherCon` unfoldigns on lambda binders]
-------------------------
Metric Decrease:
T12425
T13035
T18223
T18223
T18923
MultiLayerModulesTH_OneShot
Metric Increase:
WWRec
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/06cf6f4a3c9e520b054b7d83feb622ee15796a94" style="color: #1068bf; text-decoration: none;">06cf6f4a</a></strong>
<div>
<span>by Tony Zorman</span>
<i>at 2022-06-27T08:02:18-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add suggestions for unrecognised pragmas (#21589)
In case of a misspelled pragma, offer possible corrections as to what
the user could have meant.
Fixes: https://gitlab.haskell.org/ghc/ghc/-/issues/21589
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3fbab7572672200bcccb11cd0f0f93b01ae2580d" style="color: #1068bf; text-decoration: none;">3fbab757</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2022-06-27T08:02:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove the traces of i386-*-openbsd, long live amd64
OpenBSD will not ship any ghc packages on i386 starting with 7.2
release. This means there will not be a bootstrap compiler easily
available. The last available binaries are ghc-8.10.6 which is
already not supported as bootstrap for HEAD.
See here for more information:
https://marc.info/?l=openbsd-ports&m=165060700222580&w=2
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/58530271e5e3044623b7e2343f2152ca0092b5a2" style="color: #1068bf; text-decoration: none;">58530271</a></strong>
<div>
<span>by Bodigrim</span>
<i>at 2022-06-27T08:03:34-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add Foldable1 and Bifoldable1 type classes
Approved by CLC in https://github.com/haskell/core-libraries-committee/issues/9
Instances roughly follow
https://hackage.haskell.org/package/semigroupoids-5.3.7/docs/Data-Semigroup-Foldable-Class.html#t:Foldable1
but the API of `Foldable1` was expanded in comparison to `semigroupoids`.
Compatibility shim is available from https://github.com/phadej/foldable1 (to be released).
Closes #13573.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a51f4ecceff8817b906fc07e3fdf907f1f637eb0" style="color: #1068bf; text-decoration: none;">a51f4ecc</a></strong>
<div>
<span>by Naomi Liu</span>
<i>at 2022-06-27T08:04:13-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>add levity polymorphism to addrToAny#
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f4edcdc48c66fbfad41db3839424b2b2b7236581" style="color: #1068bf; text-decoration: none;">f4edcdc4</a></strong>
<div>
<span>by Naomi Liu</span>
<i>at 2022-06-27T08:04:13-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>add tests for addrToAny# levity
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/07016fc91c97e26fa330744d2eb0fa35550df969" style="color: #1068bf; text-decoration: none;">07016fc9</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-06-27T08:04:49-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Update main README page
This README had some quite out-of-date content about the build system so
I did a complete pass deleting old material. I also made the section
about flavours more prominent and mentioned flavour transformers.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/79ae2d897371946c0d3b9851228079974e759c6b" style="color: #1068bf; text-decoration: none;">79ae2d89</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-27T08:05:24-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Hide output from test compilations with verbosity==2
Previously the output from test compilations used to determine whether,
e.g., profiling libraries are available was shown with verbosity
levels >= 2. However, the default level is 2, meaning that most users
were often spammed with confusing errors. Fix this by bumping the
verbosity threshold for this output to >=3.
Fixes #21760.</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/995ea44d929d6141bb1a83912f45e9802faffb33" style="color: #1068bf; text-decoration: none;">995ea44d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-27T08:06:00-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>configure: Only probe for LD in FIND_LD
Since 6be2c5a7e9187fc14d51e1ec32ca235143bb0d8b we would probe for LD
rather early in `configure`. However, it turns out that this breaks
`configure`'s `ld`-override logic, which assumes that `LD` was set by
the user and aborts.
Fixes #21778.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b43d140b3f79e024489bbd9338d81d2ac23fc437" style="color: #1068bf; text-decoration: none;">b43d140b</a></strong>
<div>
<span>by Sergei Trofimovich</span>
<i>at 2022-06-27T08:06:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>`.hs-boot` make rules: add missing order-only dependency on target directory
Noticed missing target directory dependency as a build failure in
`make --shuffle` mode (added in https://savannah.gnu.org/bugs/index.php?62100):
"cp" libraries/base/./GHC/Stack/CCS.hs-boot libraries/base/dist-install/build/GHC/Stack/CCS.hs-boot
cp: cannot create regular file 'libraries/base/dist-install/build/GHC/Stack/CCS.hs-boot': No such file or directory
libraries/haskeline/ghc.mk:4: libraries/haskeline/dist-install/build/.depend-v-p-dyn.haskell: No such file or directory
make[1]: *** [libraries/base/ghc.mk:4: libraries/base/dist-install/build/GHC/Stack/CCS.hs-boot] Error 1 shuffle=1656129254
make: *** [Makefile:128: all] Error 2 shuffle=1656129254
Note that `cp` complains about inability to create target file.
The change adds order-only dependency on a target directory (similar to
the rest of rules in that file).
The bug is lurking there since 2009 commit 34cc75e1a (`GHC new build
system megapatch`.) where upfront directory creation was never added to
`.hs-boot` files.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/57a5f88cf70ec6dd65ff4a2df0c11805ec1db018" style="color: #1068bf; text-decoration: none;">57a5f88c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-28T03:24:24-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Mark AArch64/Darwin as requiring sign-extension
Apple's AArch64 ABI requires that the caller sign-extend small integer
arguments. Set platformCConvNeedsExtension to reflect this fact.
Fixes #21773.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/df762ae9e2d5263fb71f6df38323ac3ca400cc47" style="color: #1068bf; text-decoration: none;">df762ae9</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-28T03:24:24-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>-ddump-llvm shouldn't imply -fllvm
Previously -ddump-llvm would change the backend used, which contrasts
with all other dump flags. This is quite surprising and cost me quite
a bit of time. Dump flags should not change compiler behavior.
Fixes #21776.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/70f0c1f84213f7a09bc31e0eeefb5b089708f04b" style="color: #1068bf; text-decoration: none;">70f0c1f8</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-28T03:24:24-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CmmToAsm/AArch64: Re-format argument handling logic
Previously there were very long, hard to parse lines. Fix this.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/696d64c347364ce75e23d37884ec0bd2543b0a6a" style="color: #1068bf; text-decoration: none;">696d64c3</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-28T03:24:24-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CmmToAsm/AArch64: Sign-extend narrow C arguments
The AArch64/Darwin ABI requires that function arguments narrower
than 32-bits must be sign-extended by the caller. We neglected to
do this, resulting in #20735.
Fixes #20735.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c006ac0d1454119f0b456a00ff2416831c955e99" style="color: #1068bf; text-decoration: none;">c006ac0d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-28T03:24:24-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Add test for #20735
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/16b9100c9ef6b34b88a52b3b9e663dd40abd028f" style="color: #1068bf; text-decoration: none;">16b9100c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-28T03:24:59-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>integer-gmp: Fix cabal file
Evidently fields may not come after sections in a cabal file.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/03cc5d0258294fc83f65479e78dbe937622cfc88" style="color: #1068bf; text-decoration: none;">03cc5d02</a></strong>
<div>
<span>by Sergei Trofimovich</span>
<i>at 2022-06-28T15:20:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ghc.mk: fix 'make install' (`mk/system-cxx-std-lib-1.0.conf.install` does not exist)
before the change `make install` was failing as:
```
"mv" "/<<NIX>>/ghc-9.3.20220406/lib/ghc-9.5.20220625/bin/ghc-stage2" "/<<NIX>>/ghc-9.3.20220406/lib/ghc-9.5.20220625/bin/ghc"
make[1]: *** No rule to make target 'mk/system-cxx-std-lib-1.0.conf.install', needed by 'install_packages'. Stop.
```
I think it's a recent regression caused by 0ef249aa where `system-cxx-std-lib-1.0.conf`
is created (somewhat manually), but not the .install varianlt of it.
The fix is to consistently use `mk/system-cxx-std-lib-1.0.conf` everywhere.
Closes: https://gitlab.haskell.org/ghc/ghc/-/issues/21784
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/eecab8f9847ebf576fbe2f6a2b9564c25a0230e0" style="color: #1068bf; text-decoration: none;">eecab8f9</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-06-28T15:21:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Comments only, about join points
This MR just adds some documentation about why casts
destroy join points, following #21716.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/251471e7706ea3029b4a0c086035c16e7b67a081" style="color: #1068bf; text-decoration: none;">251471e7</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-06-28T19:02:41-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Cleanup BuiltInSyntax vs UserSyntax
There was some confusion about whether FUN/TYPE/One/Many should be
BuiltInSyntax or UserSyntax. The answer is certainly UserSyntax as
BuiltInSyntax is for things which are directly constructed by the parser
rather than going through normal renaming channels.
I fixed all the obviously wrong places I could find and added a test for
the original bug which was caused by this (#21752)
Fixes #21752 #20695 #18302
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0e22f16cda8468256b4c5d04214276be30e23faa" style="color: #1068bf; text-decoration: none;">0e22f16c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-06-28T19:03:16-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>template-haskell: Bump version to 2.19.0.0
Bumps text and exceptions submodules due to bounds.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bbe6f10eb46ea23607974abd1a96917699350b91" style="color: #1068bf; text-decoration: none;">bbe6f10e</a></strong>
<div>
<span>by Emily Bourke</span>
<i>at 2022-06-29T08:23:13+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Tiny tweak to `IOPort#` documentation
The exclamation mark and bracket don’t seem to make sense here. I’ve
looked through the history, and I don’t think they’re deliberate – possibly
a copy-and-paste error.</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/70e47489f1fa87a0ee5656950c00b54f69823fc6" style="color: #1068bf; text-decoration: none;">70e47489</a></strong>
<div>
<span>by Dominik Peteler</span>
<i>at 2022-06-29T19:26:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove `CoreOccurAnal` constructor of the `CoreToDo` type
It was dead code since the last occurence in an expression context got
removed in 71916e1c018dded2e68d6769a2dbb8777da12664.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d072217016ceae7c557f638e91a365fa5ab7779c" style="color: #1068bf; text-decoration: none;">d0722170</a></strong>
<div>
<span>by nineonine</span>
<i>at 2022-07-01T08:15:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix panic with UnliftedFFITypes+CApiFFI (#14624)
When declaring foreign import using CAPI calling convention, using
unlifted unboxed types would result in compiler panic. There was
an attempt to fix the situation in #9274, however it only addressed
some of the ByteArray cases.
This patch fixes other missed cases for all prims that may be used
as basic foreign types.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/eb0431489144effd6931c248801af3fe65227368" style="color: #1068bf; text-decoration: none;">eb043148</a></strong>
<div>
<span>by Douglas Wilson</span>
<i>at 2022-07-01T08:16:32-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: gc stats: account properly for copied bytes in sequential collections
We were not updating the [copied,any_work,scav_find_work, max_n_todo_overflow]
counters during sequential collections. As well, we were double counting for
parallel collections.
To fix this we add an `else` clause to the `if (is_par_gc())`.
The par_* counters do not need to be updated in the sequential case
because they must be 0.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f95edea9492ef30a07c7a6d11870fb5c3d0dd886" style="color: #1068bf; text-decoration: none;">f95edea9</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-07-01T19:21:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>desugar: Look through ticks when warning about possible literal overflow
Enabling `-fhpc` or `-finfo-table-map` would case a tick to end up
between the appliation of `neg` to its argument. This defeated the
special logic which looks for `NegApp ... (HsOverLit` to warn about
possible overflow if a user writes a negative literal (without out
NegativeLiterals) in their code.
Fixes #21701
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f25c8d03ad452902d2d79a157d3331253016e9c2" style="color: #1068bf; text-decoration: none;">f25c8d03</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-07-01T19:22:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Fix definition of slow-validate flavour (so that -dlint) is passed
In this embarassing sequence of events we were running slow-validate
without -dlint.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bf7991b0538b0c994a5442c7e2acac4dc038d52e" style="color: #1068bf; text-decoration: none;">bf7991b0</a></strong>
<div>
<span>by Mike Pilgrem</span>
<i>at 2022-07-02T10:12:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Identify the extistence of the `runhaskell` command and that it is equivalent to the `runghc` command. Add an entry to the index for `runhaskell`. See https://gitlab.haskell.org/ghc/ghc/-/issues/21411</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9e79f6d09c9fbd81150a45d307f753141453c945" style="color: #1068bf; text-decoration: none;">9e79f6d0</a></strong>
<div>
<span>by Simon Jakobi</span>
<i>at 2022-07-02T10:12:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Data.Foldable1: Remove references to Foldable-specific note
...as discussed in
https://gitlab.haskell.org/ghc/ghc/-/merge_requests/8495#note_439455.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3a8970ac0c69335a1d229f9c9a71e6e333e99bfb" style="color: #1068bf; text-decoration: none;">3a8970ac</a></strong>
<div>
<span>by romes</span>
<i>at 2022-07-03T14:11:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>TTG: Move HsModule to L.H.S
Move the definition of HsModule defined in GHC.Hs to
Language.Haskell.Syntax with an added TTG parameter and corresponding
extension fields.
This is progress towards having the haskell-syntax package, as described
in #21592
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f9f8099598fd169fa2f17305fc660e5c473f8836" style="color: #1068bf; text-decoration: none;">f9f80995</a></strong>
<div>
<span>by romes</span>
<i>at 2022-07-03T14:11:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>TTG: Move ImpExp client-independent bits to L.H.S.ImpExp
Move the GHC-independent definitions from GHC.Hs.ImpExp to
Language.Haskell.Syntax.ImpExp with the required TTG extension fields
such as to keep the AST independent from GHC.
This is progress towards having the haskell-syntax package, as described
in #21592
Bumps haddock submodule
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c43dbac08b0d56406fe13de1e9b49c944f478b4a" style="color: #1068bf; text-decoration: none;">c43dbac0</a></strong>
<div>
<span>by romes</span>
<i>at 2022-07-03T14:11:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Refactor ModuleName to L.H.S.Module.Name
ModuleName used to live in GHC.Unit.Module.Name. In this commit, the
definition of ModuleName and its associated functions are moved to
Language.Haskell.Syntax.Module.Name according to the current plan
towards making the AST GHC-independent.
The instances for ModuleName for Outputable, Uniquable and Binary were
moved to the module in which the class is defined because these instances
depend on GHC.
The instance of Eq for ModuleName is slightly changed to no longer
depend on unique explicitly and instead uses FastString's instance of
Eq.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2635c6f2bfb3d1126fa868768fc4b8349d0b9950" style="color: #1068bf; text-decoration: none;">2635c6f2</a></strong>
<div>
<span>by konsumlamm</span>
<i>at 2022-07-03T14:12:11-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Expand `Ord` instance for `Down`
Approved by CLC in https://github.com/haskell/core-libraries-committee/issues/23#issuecomment-1172932610
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/36fba0dfa2ecbd27b575dea09e4c3cdd6cb99b37" style="color: #1068bf; text-decoration: none;">36fba0df</a></strong>
<div>
<span>by Anselm Schüler</span>
<i>at 2022-07-04T05:06:42+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add applyWhen to Data.Function per CLC prop
Approved by CLC in https://github.com/haskell/core-libraries-committee/issues/71#issuecomment-1165830233
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3b13aab14589823744495306bfb4c7bb522d22a5" style="color: #1068bf; text-decoration: none;">3b13aab1</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-07-04T15:15:00-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Don't read package environments in ghc-stage1 wrapper
The stage1 compiler may be on the brink of existence and not have even a
working base library. You may have installed packages globally with a
similar stage2 compiler which will then lead to arguments such as
--show-iface not even working because you are passing too many package
flags. The solution is simple, don't read these implicit files.
Fixes #21803
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/aba482ea941bb0b06f041be950712ed71e047e81" style="color: #1068bf; text-decoration: none;">aba482ea</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-07-04T17:55:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Ticky:Make json info a separate field.
Fixes #21233
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/74f3867dbc77cad216444ed1e12d095feb1ced92" style="color: #1068bf; text-decoration: none;">74f3867d</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-07-04T17:56:30-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add docs:<pkg> command to hadrian to build docs for just one package
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/418afaf11b76339deb29b1717790e3749be89afc" style="color: #1068bf; text-decoration: none;">418afaf1</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-07-04T17:56:30-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>upload-docs: propagate publish correctly in upload_sdist
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ed793d7a5725689bf1f3c81ce3d7958ccaf60e7e" style="color: #1068bf; text-decoration: none;">ed793d7a</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-07-04T17:56:30-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>docs-upload: Fix upload script when no packages are listed
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d002c6e04f0c0f26c3ee24661eb4cf5620f994ab" style="color: #1068bf; text-decoration: none;">d002c6e0</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-07-04T17:56:30-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Add --haddock-base-url option for specifying base-url when generating docs
The motiviation for this flag is to be able to produce documentation
which is suitable for uploading for hackage, ie, the cross-package links
work correctly.
There are basically three values you want to set this to:
* off - default, base_url = ../%pkg% which works for local browsing
* on - no argument , base_url = https:://hackage.haskell.org/package/%pkg%/docs - for hackage docs upload
* on - argument, for example, base_url = http://localhost:8080/package/%pkg%/docs for testing the documentation.
The `%pkg%` string is a template variable which is replaced with the
package identifier for the relevant package.
This is one step towards fixing #21749
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/41eb749ada594961fc3276df6bb7319a396a167d" style="color: #1068bf; text-decoration: none;">41eb749a</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-07-04T17:56:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add nightly job for generating docs suitable for hackage upload
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/620ee7edc931dc5273dd04880059cc9ec8d41528" style="color: #1068bf; text-decoration: none;">620ee7ed</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-07-04T17:57:05-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ghci: Support :set prompt in multi repl
This adds supports for various :set commands apart from `:set <FLAG>` in
multi repl, this includes `:set prompt` and so-on.
Fixes #21796
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b151b65ec469405dcf25f9358e7e99bcc8c2b3ac" style="color: #1068bf; text-decoration: none;">b151b65e</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-07-05T16:32:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Vendor filepath inside template-haskell
Adding filepath as a dependency of template-haskell means that it can't
be reinstalled if any build-plan depends on template-haskell.
This is a temporary solution for the 9.4 release.
A longer term solution is to split-up the template-haskell package into
the wired-in part and a non-wired-in part which can be reinstalled. This
was deemed quite risky on the 9.4 release timescale.
Fixes #21738
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c9347ecf023f0ab7a989aead7cd21e953b49b11f" style="color: #1068bf; text-decoration: none;">c9347ecf</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-07-05T16:33:07-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Factor fields of `CoreDoSimplify` into separate data type
This avoids some partiality. The work @mmhat is doing cleaning up and
modularizing `Core.Opt` will build on this nicely.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d0e74992f0fd62e9bfa68b4fc3fa8c6e06ee5231" style="color: #1068bf; text-decoration: none;">d0e74992</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-07-06T01:35:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>https urls</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/803e965c684ff5d0915d653042d7a6ce16c5bc94" style="color: #1068bf; text-decoration: none;">803e965c</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-07-06T01:35:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>options and typos</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5519baa51ed9f50e126cbd5d2e0d0621eef4a8b4" style="color: #1068bf; text-decoration: none;">5519baa5</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-07-06T01:35:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>grammar</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4ddc1d3e47a01aa3ab95cf08b7fc76911af4131a" style="color: #1068bf; text-decoration: none;">4ddc1d3e</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-07-06T01:35:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>sources</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c95c20267c54363751e03dfcbba2e4f5b1167572" style="color: #1068bf; text-decoration: none;">c95c2026</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-07-06T01:35:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix lint warnings in bootstrap.py
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/86ced2ad8cf6fa1d829b2eea0d2dcbc049bc4a6d" style="color: #1068bf; text-decoration: none;">86ced2ad</a></strong>
<div>
<span>by romes</span>
<i>at 2022-07-06T01:36:23-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Restore Eq instance of ImportDeclQualifiedStyle
Fixes #21819
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3547e2640af45ab48187387fb60795a09b662038" style="color: #1068bf; text-decoration: none;">3547e264</a></strong>
<div>
<span>by romes</span>
<i>at 2022-07-06T13:50:27-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Prune L.H.S modules of GHC dependencies
Move around datatypes, functions and instances that are GHC-specific out
of the `Language.Haskell.Syntax.*` modules to reduce the GHC
dependencies in them -- progressing towards #21592
Creates a module `Language.Haskell.Syntax.Basic` to hold basic
definitions required by the other L.H.S modules (and don't belong in any
of them)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e4eea07b808bea530cf4b4fd2468035dd2cad67b" style="color: #1068bf; text-decoration: none;">e4eea07b</a></strong>
<div>
<span>by romes</span>
<i>at 2022-07-06T13:50:27-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>TTG: Move CoreTickish out of LHS.Binds
Remove the `[CoreTickish]` fields from datatype `HsBindLR idL idR` and
move them to the extension point instance, according to the plan
outlined in #21592 to separate the base AST from the GHC specific bits.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/acc1816b9153f134a3308d13b90d67bfcb123d87" style="color: #1068bf; text-decoration: none;">acc1816b</a></strong>
<div>
<span>by romes</span>
<i>at 2022-07-06T13:50:27-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>TTG for ForeignImport/Export
Add a TTG parameter to both `ForeignImport` and `ForeignExport` and,
according to #21592, move the GHC-specific bits in them and in the other
AST data types related to foreign imports and exports to the TTG
extension point.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/371c5ecf6898294f4e5bf91784dc794e7e16b7cc" style="color: #1068bf; text-decoration: none;">371c5ecf</a></strong>
<div>
<span>by romes</span>
<i>at 2022-07-06T13:50:27-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>TTG for HsTyLit
Add TTG parameter to `HsTyLit` to move the GHC-specific `SourceText`
fields to the extension point and out of the base AST.
Progress towards #21592
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fd379d1b8e709f4eaa20a969bf9fffd40b8a4433" style="color: #1068bf; text-decoration: none;">fd379d1b</a></strong>
<div>
<span>by romes</span>
<i>at 2022-07-06T13:50:27-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove many GHC dependencies from L.H.S
Continue to prune the `Language.Haskell.Syntax.*` modules out of GHC
imports according to the plan in the linked issue.
Moves more GHC-specific declarations to `GHC.*` and brings more required
GHC-independent declarations to `Language.Haskell.Syntax.*` (extending
e.g. `Language.Haskell.Syntax.Basic`).
Progress towards #21592
Bump haddock submodule for !8308
-------------------------
Metric Decrease:
hard_hole_fits
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c5415bc5c428df72f3943fd9bf117355ae746fdb" style="color: #1068bf; text-decoration: none;">c5415bc5</a></strong>
<div>
<span>by Alan Zimmerman</span>
<i>at 2022-07-06T13:50:27-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix exact printing of the HsRule name
Prior to this branch, the HsRule name was
XRec pass (SourceText,RuleName)
and there is an ExactPrint instance for (SourceText, RuleName).
The SourceText has moved to a different location, so synthesise the
original to trigger the correct instance when printing.
We need both the SourceText and RuleName when exact printing, as it is
possible to have a NoSourceText variant, in which case we fall back to
the FastString.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/665fa5a73e385bdfce13180048701a179ec3f36a" style="color: #1068bf; text-decoration: none;">665fa5a7</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-07-06T13:51:03-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>driver: Fix issue with module loops and multiple home units
We were attempting to rehydrate all dependencies of a particular module,
but we actually only needed to rehydrate those of the current package
(as those are the ones participating in the loop).
This fixes loading GHC into a multi-unit session.
Fixes #21814
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bbcaba6a0951d45ae0ceb309da5458fc20332511" style="color: #1068bf; text-decoration: none;">bbcaba6a</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-07-06T13:51:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove a bogus #define from ClosureMacros.h
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fa59223b05e24d6e477e3ab0ab296e32b2b65a8b" style="color: #1068bf; text-decoration: none;">fa59223b</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2022-07-07T23:23:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>winio: make consoleReadNonBlocking not wait for any events at all.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/42c917df5be8d75f79a283a8ed59fbaf099bc973" style="color: #1068bf; text-decoration: none;">42c917df</a></strong>
<div>
<span>by Adam Sandberg Ericsson</span>
<i>at 2022-07-07T23:24:34-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: allow NULL to be used as an invalid StgStablePtr
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3739e565f8fa09b3a31ba8f563c518480585f6f9" style="color: #1068bf; text-decoration: none;">3739e565</a></strong>
<div>
<span>by Andreas Schwab</span>
<i>at 2022-07-07T23:25:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>RTS: Add stack marker to StgCRunAsm.S
Every object file must be properly marked for non-executable stack, even if it
contains no code.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a889bc05dfff611521769843993ccea7a0061537" style="color: #1068bf; text-decoration: none;">a889bc05</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-07T23:25:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump unix submodule
Adds `config.sub` to unix's `.gitignore`, fixing #19574.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3609a4781f351fdef8f0987c62d72c4e8bb81959" style="color: #1068bf; text-decoration: none;">3609a478</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-07-09T11:11:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ghci: Fix most calls to isLoaded to work in multi-mode
The most egrarious thing this fixes is the report about the total number
of loaded modules after starting a session.
Ticket #20889
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fc183c9026284ebd70dfd0a0a6682b9b7a96a676" style="color: #1068bf; text-decoration: none;">fc183c90</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-07-09T11:11:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Enable :edit command in ghci multi-mode.
This works after the last change to isLoaded.
Ticket #20888
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/460505345e500eb902da9737c75c077d5fc5ef66" style="color: #1068bf; text-decoration: none;">46050534</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-07-09T11:12:34-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix a scoping bug in the Specialiser
In the call to `specLookupRule` in `already_covered`, in `specCalls`,
we need an in-scope set that includes the free vars of the arguments.
But we simply were not guaranteeing that: did not include the
`rule_bndrs`.
Easily fixed. I'm not sure how how this bug has lain for quite
so long without biting us.
Fixes #21828.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6e8d90560b4a9269c56f7c1ee4d29d1077680f7b" style="color: #1068bf; text-decoration: none;">6e8d9056</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-07-12T13:26:52+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Edit Note [idArity varies independently of dmdTypeDepth]
...and refer to it in GHC.Core.Lint.lintLetBind.
Fixes #21452
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/89ba46554025f413959be53b2868ba1a79f12ae2" style="color: #1068bf; text-decoration: none;">89ba4655</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-07-12T13:26:52+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Tiny documentation wibbles (comments only)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/61a46c6d2bd20b9ba5d89c86e8d64b7149a38280" style="color: #1068bf; text-decoration: none;">61a46c6d</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-07-13T08:28:29-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>fix readme</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/61babb5edff00c2929ffbb615d8a3110db1b4b5b" style="color: #1068bf; text-decoration: none;">61babb5e</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-07-13T08:28:29-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>fix bootstrap</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8b417ad54a91a7e12671cf059e0b5a3be43bbce2" style="color: #1068bf; text-decoration: none;">8b417ad5</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-07-13T08:28:29-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>tarball</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e9d9f0784e8670c6b85f1bf80e26b571b08519b5" style="color: #1068bf; text-decoration: none;">e9d9f078</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-07-13T14:00:18-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hie-files: Fix scopes for deriving clauses and instance signatures (#18425)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c4989131563efca8692c341e7b08096ac9a3b53b" style="color: #1068bf; text-decoration: none;">c4989131</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-07-13T14:00:18-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hie-files: Record location of filled in default method bindings
This is useful for hie files to reconstruct the evidence that default methods
depend on.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9c52e7fcacb8ba163e980c9765ebff5d91ae6f4a" style="color: #1068bf; text-decoration: none;">9c52e7fc</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-07-13T14:00:18-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Factor out common parts from hiefile tests
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6a9e44932945bfcc2f2eb169bd175ab029d9bf72" style="color: #1068bf; text-decoration: none;">6a9e4493</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-07-13T14:00:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Hadrian: update documentation of settings
The documentation for key-value settings was a bit out of date.
This patch updates it to account for `cabal.configure.opts` and
`hsc2hs.run.opts`.
The user-settings document was also re-arranged, to make the key-value
settings more prominent (as it doesn't involve changing the Hadrian
source code, and thus doesn't require any recompilation of Hadrian).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a2f142f84bbc865f586ecc6ce94126c5427a86c1" style="color: #1068bf; text-decoration: none;">a2f142f8</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-07-13T20:43:32-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix potential space leak that arise from ModuleGraphs retaining references
to previous ModuleGraphs, in particular the lazy `mg_non_boot` field.
This manifests in `extendMG`.
Solution: Delete `mg_non_boot` as it is only used for `mgLookupModule`, which
is only called in two places in the compiler, and should only be called at most
once for every home unit:
GHC.Driver.Make:
mainModuleSrcPath :: Maybe String
mainModuleSrcPath = do
ms <- mgLookupModule mod_graph (mainModIs hue)
ml_hs_file (ms_location ms)
GHCI.UI:
listModuleLine modl line = do
graph <- GHC.getModuleGraph
let this = GHC.mgLookupModule graph modl
Instead `mgLookupModule` can be a linear function that looks through the entire
list of `ModuleGraphNodes`
Fixes #21816
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dcf8b30a1a5f802b1d8a22ea74499e2896a6ff16" style="color: #1068bf; text-decoration: none;">dcf8b30a</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-13T20:44:08-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Fix AdjustorPool bitmap manipulation
Previously the implementation of bitmap_first_unset assumed that
`__builtin_clz` would accept `uint8_t` however it apparently rather
extends its argument to `unsigned int`.
To fix this we simply revert to a naive implementation since handling
the various corner cases with `clz` is quite tricky. This should be
fine given that AdjustorPool isn't particularly hot. Ideally we would
have a single, optimised bitmap implementation in the RTS but I'll leave
this for future work.
Fixes #21838.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ad8f3e150a895bfd3f8e2936be616ebfc4f531c6" style="color: #1068bf; text-decoration: none;">ad8f3e15</a></strong>
<div>
<span>by Luite Stegeman</span>
<i>at 2022-07-16T07:20:36-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Change GHCi bytecode return convention for unlifted datatypes.
This changes the bytecode return convention for unlifted
algebraic datatypes to be the same as for lifted
types, i.e. ENTER/PUSH_ALTS instead of
RETURN_UNLIFTED/PUSH_ALTS_UNLIFTED
Fixes #20849
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5434d1a355e127d44c6f116b4b7f8a1d254815d4" style="color: #1068bf; text-decoration: none;">5434d1a3</a></strong>
<div>
<span>by Colten Webb</span>
<i>at 2022-07-16T07:21:15-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Compute record-dot-syntax types
Ensures type information for record-dot-syntax
is included in HieASTs. See #21797
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/89d169ec0c4e9c1e6cf4a6373a1992dad7474d55" style="color: #1068bf; text-decoration: none;">89d169ec</a></strong>
<div>
<span>by Colten Webb</span>
<i>at 2022-07-16T07:21:15-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add record-dot-syntax test
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4beb9f3c367e1f7ee80b5458318d9f91622e4568" style="color: #1068bf; text-decoration: none;">4beb9f3c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T07:21:51-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Document RuntimeRep polymorphism limitations of catch#, et al
As noted in #21868, several primops accepting continuations producing
RuntimeRep-polymorphic results aren't nearly as polymorphic as their
types suggest. Document this limitation and adapt the `UnliftedWeakPtr`
test to avoid breaking this limitation in `keepAlive#`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4ef1c65d76ef4aeb0fbd6a3667be628571c86f54" style="color: #1068bf; text-decoration: none;">4ef1c65d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T07:21:51-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make keepAlive# out-of-line
This is a naive approach to fixing the unsoundness noticed in #21708.
Specifically, we remove the lowering of `keepAlive#` via CorePrep and
instead turn it into an out-of-line primop.
This is simple, inefficient (since the continuation must now be heap
allocated), but good enough for 9.4.1. We will revisit this
(particiularly via #16098) in a future release.
Metric Increase:
T4978
T7257
T9203
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1bbff35d4ca991c040e5f675554175a06af1554b" style="color: #1068bf; text-decoration: none;">1bbff35d</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2022-07-16T07:22:29-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Suppress extra output from configure check for c++ libraries
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3acbd7ad4a5ee3246c694674e6248a935430104c" style="color: #1068bf; text-decoration: none;">3acbd7ad</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T07:23:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rel-notes: Drop mention of #21745 fix
Since we have backported the fix to 9.4.1.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b27c2774fb8191e566bcae0ed7b06bb96afa466b" style="color: #1068bf; text-decoration: none;">b27c2774</a></strong>
<div>
<span>by Dominik Peteler</span>
<i>at 2022-07-16T07:23:43-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Align the behaviour of `dopt` and `log_dopt`
Before the behaviour of `dopt` and `logHasDumpFlag` (and the underlying
function `log_dopt`) were different as the latter did not take the
verbosity level into account. This led to problems during the
refactoring as we cannot simply replace calls to `dopt` with calls to
`logHasDumpFlag`.
In addition to that a subtle bug in the GHC module was fixed:
`setSessionDynFlags` did not update the logger and as a consequence the
verbosity value of the logger was not set appropriately.
Fixes #21861
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/28347d7141761fc5c3c9bd66e5c4b2ea1c16f58a" style="color: #1068bf; text-decoration: none;">28347d71</a></strong>
<div>
<span>by Douglas Wilson</span>
<i>at 2022-07-16T13:25:06-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: forkOn context switches the target capability
Fixes #21824
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f1c449910256c61cb35e361a367d5209bc51cc7a" style="color: #1068bf; text-decoration: none;">f1c44991</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T13:25:41-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>cmm: Eliminate orphan Outputable instances
Here we reorganize `GHC.Cmm` to eliminate the orphan `Outputable` and
`OutputableP` instances for the Cmm AST. This makes it significantly
easier to use the Cmm pretty-printers in tracing output without
incurring module import cycles.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f2e5e7631ffafe3225989f8b67646c833c00e3ec" style="color: #1068bf; text-decoration: none;">f2e5e763</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T13:25:41-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>cmm: Move toBlockList to GHC.Cmm
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fa0927454b02e4439d1683c2c3a3edd5b251dba1" style="color: #1068bf; text-decoration: none;">fa092745</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T13:25:41-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>compiler: Add haddock sections to GHC.Utils.Panic
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/097759f9f85ded496b21cf28e83cbdad1bf9a65b" style="color: #1068bf; text-decoration: none;">097759f9</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T13:26:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>configure: Don't override Windows CXXFLAGS
At some point we used the clang distribution from msys2's `MINGW64`
environment for our Windows toolchain. This defaulted to using libgcc
and libstdc++ for its runtime library. However, we found for a variety
of reasons that compiler-rt, libunwind, and libc++ were more reliable,
consequently we explicitly overrode the CXXFLAGS to use these.
However, since then we have switched to use the `CLANG64` packaging,
which default to these already. Consequently we can drop these
arguments, silencing some redundant argument warnings from clang.
Fixes #21669.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e38a268491347c3aceba359d47034e272afcdf6b" style="color: #1068bf; text-decoration: none;">e38a2684</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:50:36-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker/Elf: Check that there are no NULL ctors
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/616365b01ea6552c39e211a42df4cb33762f481e" style="color: #1068bf; text-decoration: none;">616365b0</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:50:36-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker/Elf: Introduce support for invoking finalizers on unload
Addresses #20494.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cdd3be20684c696d9008b6ca7c83731adb13e1b6" style="color: #1068bf; text-decoration: none;">cdd3be20</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:50:36-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Add T20494
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/03c69d8d1ffeb85055d71f6c144c18309a13308f" style="color: #1068bf; text-decoration: none;">03c69d8d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:50:36-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker/PEi386: Rename finit field to fini
fini is short for "finalizer", which does not contain a "t".
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/033580bc35451e49ed021ae5391da8e199d58c8d" style="color: #1068bf; text-decoration: none;">033580bc</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:50:36-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker/PEi386: Refactor handling of oc->info
Previously we would free oc->info after running initializers. However,
we can't do this is we want to also run finalizers.
Moreover, freeing oc->info so early was wrong for another reason:
we will need it in order to unregister the exception tables (see the
call to `RtlDeleteFunctionTable`).
In service of #20494.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f17912e4db9a104b30b956ae61d17329d0a5f601" style="color: #1068bf; text-decoration: none;">f17912e4</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:50:36-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker/PEi386: Add finalization support
This implements #20494 for the PEi386 linker.
Happily, this also appears to fix `T9405`, resolving #21361.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2cd75550cad93b84a4ef831c5dc8f40071c3a903" style="color: #1068bf; text-decoration: none;">2cd75550</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:50:36-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Loader: Implement gnu-style -l:$path syntax
Gnu ld allows `-l` to be passed an absolute file path,
signalled by a `:` prefix. Implement this in the GHC's
loader search logic.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5781a36022bd1f1e7344d3f6530c163dd2587e78" style="color: #1068bf; text-decoration: none;">5781a360</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:50:36-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Statically-link against libc++ on Windows
Unfortunately on Windows we have no RPATH-like facility, making dynamic
linking extremely fragile. Since we cannot assume that the user will
add their GHC installation to `$PATH` (and therefore their DLL
search path) we cannot assume that the loader will be able to locate our
`libc++.dll`. To avoid this, we instead statically link against `libc++.a` on
Windows.
Fixes #21435.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8e2e883b55396eda6fe3b50ce68779599a553d91" style="color: #1068bf; text-decoration: none;">8e2e883b</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:50:36-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker/PEi386: Ensure that all .ctors/.dtors sections are run
It turns out that PE objects may have multiple `.ctors`/`.dtors`
sections but the RTS linker had assumed that there was only one. Fix
this.
Fixes #21618.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fba04387550fbf531158c12739eab12527977808" style="color: #1068bf; text-decoration: none;">fba04387</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:50:36-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker/PEi386: Respect dtor/ctor priority
Previously we would run constructors and destructors in arbitrary order
despite explicit priorities.
Fixes #21847.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1001952f147e8837d1dea08be4cebec87592fdde" style="color: #1068bf; text-decoration: none;">1001952f</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:50:36-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Add test for #21618 and #21847
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6f3816af374f5c5b70f37e14a23ca8f209c365c2" style="color: #1068bf; text-decoration: none;">6f3816af</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:50:36-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker/PEi386: Fix exception unwind unregistration
RtlDeleteFunctionTable expects a pointer to the .pdata section
yet we passed it the .xdata section.
Happily, this fixes #21354.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d9bff44ca5a4a05434d32f76f665c332a0d26f43" style="color: #1068bf; text-decoration: none;">d9bff44c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:50:36-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker/MachO: Drop dead code
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d161e6bc606d7ec86f6d910a9f744ff513fd6df6" style="color: #1068bf; text-decoration: none;">d161e6bc</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:50:36-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker/MachO: Use section flags to identify initializers
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fbb171100f1d5bd9e78cbb9072fb48d3422458a5" style="color: #1068bf; text-decoration: none;">fbb17110</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:50:36-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker/MachO: Introduce finalizer support
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5b0ed8a8baaa32e03fee7af2c08656b462b62770" style="color: #1068bf; text-decoration: none;">5b0ed8a8</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:50:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Use system-cxx-std-lib instead of config.stdcxx_impl
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6c476e1a804d4fbfacff0fc69cdb7c4700fd0eaa" style="color: #1068bf; text-decoration: none;">6c476e1a</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:50:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker/Elf: Work around GCC 6 init/fini behavior
It appears that GCC 6t (at least on i386) fails to give
init_array/fini_array sections the correct SHT_INIT_ARRAY/SHT_FINI_ARRAY
section types, instead marking them as SHT_PROGBITS. This caused T20494
to fail on Debian.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5f8203b86c312f61a4dff9b83d456d17fabc087f" style="color: #1068bf; text-decoration: none;">5f8203b8</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:50:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Mark T13366Cxx as unbroken on Darwin
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1fd2f8516fa3902e42c97b56fbcf1b0269f0a60a" style="color: #1068bf; text-decoration: none;">1fd2f851</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:50:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker: Fix resolution of __dso_handle on Darwin
Darwin expects a leading underscore.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a2dc00f3b736a1128010c82ffadce96c51fbfbf4" style="color: #1068bf; text-decoration: none;">a2dc00f3</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:50:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker: Clean up section kinds
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/aeb1a7c394ac78ceb4d86d1cc5805a7c2b1aa747" style="color: #1068bf; text-decoration: none;">aeb1a7c3</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:50:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker: Ensure that __cxa_finalize is called on code unload
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/028f081e4e748794d7a0e6359987ec799c3dc404" style="color: #1068bf; text-decoration: none;">028f081e</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-16T23:51:12-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Fix T11829 on Centos 7
It appears that Centos 7 has a more strict C++ compiler than most
distributions since std::runtime_error is defined in <stdexcept> rather
than <exception>. In T11829 we mistakenly imported the latter.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a10584e8df9b346cecf700b23187044742ce0b35" style="color: #1068bf; text-decoration: none;">a10584e8</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-17T22:30:32-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Rename documentation directories for consistency with make
* Rename `docs` to `doc`
* Place pdf documentation in `doc/` instead of `doc/pdfs/`
Fixes #21164.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b27c5947ed9537f8cde153be4e53d4095ecbe247" style="color: #1068bf; text-decoration: none;">b27c5947</a></strong>
<div>
<span>by Anselm Schüler</span>
<i>at 2022-07-17T22:31:11-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix incorrect proof of applyWhen’s properties
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/eb031a5b913ccd645c596abe3d8630602e7c47bc" style="color: #1068bf; text-decoration: none;">eb031a5b</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-07-18T08:04:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Add multi:<pkg> and multi targets for starting a multi-repl
This patch adds support to hadrian for starting a multi-repl containing
all the packages which stage0 can build. In particular, there is the new
user-facing command:
```
./hadrian/ghci-multi
```
which when executed will start a multi-repl containing the `ghc` package
and all it's dependencies.
This is implemented by two new hadrian targets:
```
./hadrian/build multi:<pkg>
```
Construct the arguments for a multi-repl session where the top-level
package is <pkg>. For example, `./hadrian/ghci-multi` is implemented
using `multi:ghc` target.
There is also the `multi` command which constructs a repl for everything
in stage0 which we can build.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/19e7cac99d7cbbba4ff9aa42f6877daa81f197d0" style="color: #1068bf; text-decoration: none;">19e7cac9</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-07-18T08:05:27-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>changelog typo</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/af6731a40782b418947d376a09fd605111dfea2a" style="color: #1068bf; text-decoration: none;">af6731a4</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-07-18T08:05:27-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>typos
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/415468fef8a3e9181b7eca86de0e05c0cce31729" style="color: #1068bf; text-decoration: none;">415468fe</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-07-18T16:36:54-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Refactor SpecConstr to use treat bindings uniformly
This patch, provoked by #21457, simplifies SpecConstr by treating
top-level and nested bindings uniformly (see the new scBind).
* Eliminates the mysterious scTopBindEnv
* Refactors scBind to handle top-level and nested definitions
uniformly.
* But, for now at least, continues the status quo of not doing
SpecConstr for top-level non-recursive bindings. (In contrast
we do specialise nested non-recursive bindings, although the
original paper did not; see Note [Local let bindings].)
I tried the effect of specialising top-level non-recursive
bindings (which is now dead easy to switch on, unlike before)
but found some regressions, so I backed off. See !8135.
It's a pure refactoring. I think it'll do a better job in a few
cases, but there is no regression test.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d4d3fe6e02c0eb2117dbbc9df72ae394edf50f06" style="color: #1068bf; text-decoration: none;">d4d3fe6e</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-07-18T16:37:29-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Rule matching: Don't compute the FVs if we don't look at them.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5f907371996735d13a4f9c87d235a18a68022e4e" style="color: #1068bf; text-decoration: none;">5f907371</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-07-18T16:38:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>White space only in FamInstEnv
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ae3b3b62b422fc88a06ed06384caf27be91b1d37" style="color: #1068bf; text-decoration: none;">ae3b3b62</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-07-18T16:38:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make transferPolyIdInfo work for CPR
I don't know why this hasn't bitten us before, but it was plain wrong.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9bdfdd98e9be4eb0ff687e638fe5c33c6284a31c" style="color: #1068bf; text-decoration: none;">9bdfdd98</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-07-18T16:38:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Inline mapAccumLM
This function is called in inner loops in the compiler, and it's
overloaded and higher order. Best just to inline it.
This popped up when I was looking at something else. I think
perhaps GHC is delicately balanced on the cusp of inlining this
automatically.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d0b806fff79ad80ae587f2e081a71b3d85ac7589" style="color: #1068bf; text-decoration: none;">d0b806ff</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-07-18T16:38:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make SetLevels honour floatConsts
This fix, in the definition of profitableFloat,
is just for consistency. `floatConsts` should
do what it says!
I don't think it'll affect anything much, though.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d1c25a48154236861a413e058ea38d1b8320273f" style="color: #1068bf; text-decoration: none;">d1c25a48</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-07-18T16:38:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Refactor wantToUnboxArg a bit
* Rename GHC.Core.Opt.WorkWrap.Utils.wantToUnboxArg to canUnboxArg
and similarly wantToUnboxResult to canUnboxResult.
* Add GHC.Core.Opt.DmdAnal.wantToUnboxArg as a wrapper for
the (new) GHC.Core.Opt.WorkWrap.Utils.canUnboxArg,
avoiding some yukky duplication.
I decided it was clearer to give it a new data type for its
return type, because I nedeed the FD_RecBox case which was not
otherwise readiliy expressible.
* Add dcpc_args to WorkWrap.Utils.DataConPatContext for the payload
* Get rid of the Unlift constructor of UnboxingDecision, eliminate
two panics, and two arguments to canUnboxArg (new name). Much
nicer now.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6d8a715e20cf3583f99248383c1b2932d152bf52" style="color: #1068bf; text-decoration: none;">6d8a715e</a></strong>
<div>
<span>by Teo Camarasu</span>
<i>at 2022-07-18T16:38:44-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Allow running memInventory when the concurrent nonmoving gc is enabled
If the nonmoving gc is enabled and we are using a threaded RTS,
we now try to grab the collector mutex to avoid memInventory and
the collection racing.
Before memInventory was disabled.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/aa75bbde5603aa3e91f08a02977e8dd459109a62" style="color: #1068bf; text-decoration: none;">aa75bbde</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-18T16:39:20-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitignore: don't ignore all aclocal.m4 files
While GHC's own aclocal.m4 is generated by the aclocal tool, other
packages' aclocal.m4 are committed in the repository. Previously
`.gitignore` included an entry which covered *any* file named
`aclocal.m4`, which lead to quite some confusion (e.g. see #21740).
Fix this by modifying GHC's `.gitignore` to only cover GHC's own
`aclocal.m4`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4b98c5ce971b4ea6a2ca9e44f2d068088546751a" style="color: #1068bf; text-decoration: none;">4b98c5ce</a></strong>
<div>
<span>by Boris Lykah</span>
<i>at 2022-07-19T02:34:12-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add mapAccumM, forAccumM to Data.Traversable
Approved by Core Libraries Committee in
https://github.com/haskell/core-libraries-committee/issues/65#issuecomment-1186275433
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bd92182cd56140ffb2f68ec01492e5aa6333a8fc" style="color: #1068bf; text-decoration: none;">bd92182c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-19T02:34:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>configure: Use AC_PATH_TOOL to detect tools
Previously we used AC_PATH_PROG which, as noted by #21601, does not
look for tools with a target prefix,
breaking cross-compilation.
Fixes #21601.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e8c07aa91f0f05816b455457e3781c247b7399ca" style="color: #1068bf; text-decoration: none;">e8c07aa9</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-07-19T10:07:53-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>driver: Fix implementation of -S
We were failing to stop before running the assembler so the object file
was also created.
Fixes #21869
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e2f0094c315746ff15b8d9650cf318f81d8416d7" style="color: #1068bf; text-decoration: none;">e2f0094c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-19T10:08:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/ProfHeap: Ensure new Censuses are zeroed
When growing the Census array ProfHeap previously neglected to
zero the new part of the array. Consequently `freeEra` would attempt to
free random words that often looked suspiciously like pointers.
Fixes #21880.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/81d65f7f358fdbd1d13b89c43fc4cbe3ac82d24b" style="color: #1068bf; text-decoration: none;">81d65f7f</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-07-21T15:37:22+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make withDict opaque to the specialiser
As pointed out in #21575, it is not sufficient to set withDict to inline
after the typeclass specialiser, because we might inline withDict in one
module and then import it in another, and we run into the same problem.
This means we could still end up with incorrect runtime results because
the typeclass specialiser would assume that distinct typeclass evidence
terms at the same type are equal, when this is not necessarily the case
when using withDict.
Instead, this patch introduces a new magicId, 'nospec', which is only
inlined in CorePrep. We make use of it in the definition of withDict
to ensure that the typeclass specialiser does not common up distinct
typeclass evidence terms.
Fixes #21575
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9a3e1f316598f7d5072ed4f94437f759352580a5" style="color: #1068bf; text-decoration: none;">9a3e1f31</a></strong>
<div>
<span>by Dominik Peteler</span>
<i>at 2022-07-22T08:18:40-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Refactored Simplify pass
* Removed references to driver from GHC.Core.LateCC, GHC.Core.Simplify
namespace and GHC.Core.Opt.Stats.
Also removed services from configuration records.
* Renamed GHC.Core.Opt.Simplify to GHC.Core.Opt.Simplify.Iteration.
* Inlined `simplifyPgm` and renamed `simplifyPgmIO` to `simplifyPgm`
and moved the Simplify driver to GHC.Core.Opt.Simplify.
* Moved `SimplMode` and `FloatEnable` to GHC.Core.Opt.Simplify.Env.
* Added a configuration record `TopEnvConfig` for the `SimplTopEnv` environment
in GHC.Core.Opt.Simplify.Monad.
* Added `SimplifyOpts` and `SimplifyExprOpts`. Provide initialization functions
for those in a new module GHC.Driver.Config.Core.Opt.Simplify.
Also added initialization functions for `SimplMode` to that module.
* Moved `CoreToDo` and friends to a new module GHC.Core.Pipeline.Types
and the counting types and functions (`SimplCount` and `Tick`) to new
module GHC.Core.Opt.Stats.
* Added getter functions for the fields of `SimplMode`. The pedantic bottoms
option and the platform are retrieved from the ArityOpts and RuleOpts and the
getter functions allow us to retrieve values from `SpecEnv` without the
knowledge where the data is stored exactly.
* Moved the coercion optimization options from the top environment to
`SimplMode`. This way the values left in the top environment are those
dealing with monadic functionality, namely logging, IO related stuff and
counting. Added a note "The environments of the Simplify pass".
* Removed `CoreToDo` from GHC.Core.Lint and GHC.CoreToStg.Prep and got rid of
`CoreDoSimplify`. Pass `SimplifyOpts` in the `CoreToDo` type instead.
* Prep work before removing `InteractiveContext` from `HscEnv`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2c5991ccaf45cb7e68e54d59a27ee144a4499edb" style="color: #1068bf; text-decoration: none;">2c5991cc</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-07-22T08:18:41-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make the specialiser deal better with specialised methods
This patch fixes #21848, by being more careful to update unfoldings
in the type-class specialiser.
See the new Note [Update unfolding after specialisation]
Now that we are being so much more careful about unfoldings,
it turned out that I could dispense with se_interesting, and
all its tricky corners. Hooray. This fixes #21368.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ae1666353696b5d85938d8a2f5fb11fb66f21678" style="color: #1068bf; text-decoration: none;">ae166635</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-22T08:18:41-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ghc-boot: Clean up UTF-8 codecs
In preparation for moving the UTF-8 codecs into `base`:
* Move them to GHC.Utils.Encoding.UTF8
* Make names more consistent
* Add some Haddocks
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e8ac91dbaeeb1296c4ae22506b01faf3b6579e9a" style="color: #1068bf; text-decoration: none;">e8ac91db</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-22T08:18:41-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>base: Introduce GHC.Encoding.UTF8
Here we copy a subset of the UTF-8 implementation living in `ghc-boot`
into `base`, with the intent of dropping the former in the future. For
this reason, the `ghc-boot` copy is now CPP-guarded on
`MIN_VERSION_base(4,18,0)`.
Naturally, we can't copy *all* of the functions defined by `ghc-boot` as
some depend upon `bytestring`; we rather just copy those which only
depend upon `base` and `ghc-prim`.
Further consolidation?
----------------------
Currently GHC ships with at least five UTF-8 implementations:
* the implementation used by GHC in `ghc-boot:GHC.Utils.Encoding`; this
can be used at a number of types including `Addr#`, `ByteArray#`,
`ForeignPtr`, `Ptr`, `ShortByteString`, and `ByteString`. Most of this
can be removed in GHC 9.6+2, when the copies in `base` will become
available to `ghc-boot`.
* the copy of the `ghc-boot` definition now exported by
`base:GHC.Encoding.UTF8`. This can be used at `Addr#`, `Ptr`,
`ByteArray#`, and `ForeignPtr`
* the decoder used by `unpackCStringUtf8#` in `ghc-prim:GHC.CString`;
this is specialised at `Addr#`.
* the codec used by the IO subsystem in `base:GHC.IO.Encoding.UTF8`;
this is specialised at `Addr#` but, unlike the above, supports
recovery in the presence of partial codepoints (since in IO contexts
codepoints may be broken across buffers)
* the implementation provided by the `text` library
This does seem a tad silly. On the other hand, these implementations
*do* materially differ from one another (e.g. in the types they support,
the detail in errors they can report, and the ability to recover from
partial codepoints). Consequently, it's quite unclear that further
consolidate would be worthwhile.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f9ad80255dacc2047981031741caca4b2df45f4e" style="color: #1068bf; text-decoration: none;">f9ad8025</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-22T08:18:41-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add a Note summarising GHC's UTF-8 implementations
GHC has a somewhat dizzying array of UTF-8 implementations. This note
describes why this is the case.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/72dfad3dea54c003af88c8a5c0da57ce37216e9f" style="color: #1068bf; text-decoration: none;">72dfad3d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-22T08:18:42-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>upload_ghc_libs: Fix path to documentation
The documentation was moved in a10584e8df9b346cecf700b23187044742ce0b35
but this one occurrence was note updated.
Finally closes #21164.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a8b150e7809cbcd216963e0b3942b26722173f57" style="color: #1068bf; text-decoration: none;">a8b150e7</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-07-22T08:18:44-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add test for #21871
This adds a test for #21871, which was fixed by the No Skolem Info
rework (MR !7105).
Fixes #21871
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6379f9429e8f9e8f58f4c3c8206c265620feb26e" style="color: #1068bf; text-decoration: none;">6379f942</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-07-22T08:18:46-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add test for #21360
The way record updates are typechecked/desugared changed in MR !7981.
Because we desugar in the typechecker to a simple case expression, the
pattern match checker becomes able to spot the long-distance information
and avoid emitting an incorrect pattern match warning.
Fixes #21360
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ce0cd12c65b4130dc6eb9952e058828d65d8a2ad" style="color: #1068bf; text-decoration: none;">ce0cd12c</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-07-22T08:18:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Hadrian: don't try to build "unix" on Windows</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dc27e15a76486b1ebd27a77f8515044c2671e22d" style="color: #1068bf; text-decoration: none;">dc27e15a</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-07-25T09:42:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Implement DeepSubsumption
This MR adds the language extension -XDeepSubsumption, implementing
GHC proposal #511. This change mitigates the impact of GHC proposal
The changes are highly localised, by design. See Note [Deep subsumption]
in GHC.Tc.Utils.Unify.
The main changes are:
* Add -XDeepSubsumption, which is on by default in Haskell98 and Haskell2010,
but off in Haskell2021.
-XDeepSubsumption largely restores the behaviour before the "simple subsumption" change.
-XDeepSubsumpition has a similar flavour as -XNoMonoLocalBinds:
it makes type inference more complicated and less predictable, but it
may be convenient in practice.
* The main changes are in:
* GHC.Tc.Utils.Unify.tcSubType, which does deep susumption and eta-expanansion
* GHC.Tc.Utils.Unify.tcSkolemiseET, which does deep skolemisation
* In GHC.Tc.Gen.App.tcApp we call tcSubTypeNC to match the result
type. Without deep subsumption, unifyExpectedType would be sufficent.
See Note [Deep subsumption] in GHC.Tc.Utils.Unify.
* There are no changes to Quick Look at all.
* The type of `withDict` becomes ambiguous; so add -XAllowAmbiguousTypes to
GHC.Magic.Dict
* I fixed a small but egregious bug in GHC.Core.FVs.varTypeTyCoFVs, where
we'd forgotten to take the free vars of the multiplicity of an Id.
* I also had to fix tcSplitNestedSigmaTys
When I did the shallow-subsumption patch
commit 2b792facab46f7cdd09d12e79499f4e0dcd4293f
Date: Sun Feb 2 18:23:11 2020 +0000
Simple subsumption
I changed tcSplitNestedSigmaTys to not look through function arrows
any more. But that was actually an un-forced change. This function
is used only in
* Improving error messages in GHC.Tc.Gen.Head.addFunResCtxt
* Validity checking for default methods: GHC.Tc.TyCl.checkValidClass
* A couple of calls in the GHCi debugger: GHC.Runtime.Heap.Inspect
All to do with validity checking and error messages. Acutally its
fine to look under function arrows here, and quite useful a test
DeepSubsumption05 (a test motivated by a build failure in the
`lens` package) shows.
The fix is easy. I added Note [tcSplitNestedSigmaTys].
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e31ead39331f1bb6d3976ae7573be8fe2b364172" style="color: #1068bf; text-decoration: none;">e31ead39</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-07-25T09:42:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add tests that -XHaskell98 and -XHaskell2010 enable DeepSubsumption
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/671899858585376dcbbbdc3740dad4b8ec7b6a70" style="color: #1068bf; text-decoration: none;">67189985</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-07-25T09:42:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add DeepSubsumption08
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5e93a9521fc2220ee6f4f150c6681f84f33a2134" style="color: #1068bf; text-decoration: none;">5e93a952</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-07-25T09:42:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix the interaction of operator sections and deep subsumption
Fixes DeepSubsumption08
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/918620d9e2f9e4a0122c57d7fdddbe34626f34b0" style="color: #1068bf; text-decoration: none;">918620d9</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-07-25T09:42:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add DeepSubsumption09
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2a773259fae8ae178a80538223b3e7a9bda93717" style="color: #1068bf; text-decoration: none;">2a773259</a></strong>
<div>
<span>by Gabriella Gonzalez</span>
<i>at 2022-07-25T09:42:40-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Default implementation for mempty/(<>)
Approved by: https://github.com/haskell/core-libraries-committee/issues/61
This adds a default implementation for `mempty` and `(<>)` along
with a matching `MINIMAL` pragma so that `Semigroup` and `Monoid`
instances can be defined in terms of `sconcat` / `mconcat`.
The description for each class has also been updated to include the
equivalent set of laws for the `sconcat`-only / `mconcat`-only
instances.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/73836fc84b6b39fed34ccb3a501f7a88658c1400" style="color: #1068bf; text-decoration: none;">73836fc8</a></strong>
<div>
<span>by Bryan Richter</span>
<i>at 2022-07-25T09:43:16-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Disable (broken) perf-nofib
See #21859
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c24ca5c3b1246465f5fee4388effba74ea5351ad" style="color: #1068bf; text-decoration: none;">c24ca5c3</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-07-25T09:43:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Docs: clarify ConstraintKinds infelicity
GHC doesn't consistently require the ConstraintKinds extension to
be enabled, as it allows programs such as type families returning
a constraint without this extension.
MR !7784 fixes this infelicity, but breaking user programs was deemed
to not be worth it, so we document it instead.
Fixes #21061.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5f2fbd5e217802b3ae2bcab505bba05dc69115ec" style="color: #1068bf; text-decoration: none;">5f2fbd5e</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-07-25T09:44:34-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>More improvements to worker/wrapper
This patch fixes #21888, and simplifies finaliseArgBoxities
by eliminating the (recently introduced) data type FinalDecision.
A delicate interaction meant that this patch
commit d1c25a48154236861a413e058ea38d1b8320273f
Date: Tue Jul 12 16:33:46 2022 +0100
Refactor wantToUnboxArg a bit
make worker/wrapper go into an infinite loop. This patch
fixes it by narrowing the handling of case (B) of
Note [Boxity for bottoming functions], to deal only the
arguemnts that are type variables. Only then do we drop
the trimBoxity call, which is what caused the bug.
I also
* Added documentation of case (B), which was previously
completely un-mentioned. And a regression test,
T21888a, to test it.
* Made unboxDeeplyDmd stop at lazy demands. It's rare anyway
for a bottoming function to have a lazy argument (mainly when
the data type is recursive and then we don't want to unbox
deeply). Plus there is Note [No lazy, Unboxed demands in
demand signature]
* Refactored the Case equation for dmdAnal a bit, to do less
redundant pattern matching.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b77d95f8a4b0f8a5025dbd5036c17ecf85ca3ab2" style="color: #1068bf; text-decoration: none;">b77d95f8</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-07-25T09:45:09-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix a small buglet in tryEtaReduce
Gergo points out (#21801) that GHC.Core.Opt.Arity.tryEtaReduce was
making an ill-formed cast. It didn't matter, because the subsequent
guard discarded it; but still worth fixing. Spurious warnings are
distracting.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3bbde95769aa2986adb8bef7d718aa0e8731f9fd" style="color: #1068bf; text-decoration: none;">3bbde957</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-07-25T09:45:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix #21889, GHCi misbehaves with Ctrl-C on Windows
On Windows, we create multiple levels of wrappers for GHCi which ultimately
execute ghc --interactive. In order to handle console events properly, each of
these wrappers must call FreeConsole() in order to hand off event processing to
the child process. See #14150.
In addition to this, FreeConsole must only be called from interactive processes (#13411).
This commit makes two changes to fix this situation:
1. The hadrian wrappers generated using `hadrian/bindist/cwrappers/version-wrapper.c` call `FreeConsole`
if the CPP flag INTERACTIVE_PROCESS is set, which is set when we are generating a wrapper for GHCi.
2. The GHCi wrapper in `driver/ghci/` calls the `ghc-$VER.exe` executable which is not wrapped rather
than calling `ghc.exe` is is wrapped on windows (and usually non-interactive, so can't call `FreeConsole`:
Before:
ghci-$VER.exe calls ghci.exe which calls ghc.exe which calls ghc-$VER.exe
After:
ghci-$VER.exe calls ghci.exe which calls ghc-$VER.exe
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/79f1b0219f5c00f5c8eb7884bd33993bd98680a0" style="color: #1068bf; text-decoration: none;">79f1b021</a></strong>
<div>
<span>by Simon Jakobi</span>
<i>at 2022-07-25T09:46:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>docs: Fix documentation of \cases
Fixes #21902.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e4bf95920a9bbcb5b6ac3715282c69f612137156" style="color: #1068bf; text-decoration: none;">e4bf9592</a></strong>
<div>
<span>by sternenseemann</span>
<i>at 2022-07-25T09:47:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ghc-cabal: allow Cabal 3.8 to unbreak make build
When bootstrapping GHC 9.4.*, the build will fail when configuring
ghc-cabal as part of the make based build system due to this upper
bound, as Cabal has been updated to a 3.8 release.
Reference #21914, see especially
https://gitlab.haskell.org/ghc/ghc/-/issues/21914#note_444699
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/726d938eb6604e2fe788f914e295aa1e29109b26" style="color: #1068bf; text-decoration: none;">726d938e</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-07-25T14:38:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix isEvaldUnfolding and isValueUnfolding
This fixes (1) in #21831. Easy, obviously correct.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5d26c321ae494db1b1cf725af3e002d344886951" style="color: #1068bf; text-decoration: none;">5d26c321</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-07-25T14:38:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Switch off eta-expansion in rules and unfoldings
I think this change will make little difference except to reduce
clutter. But that's it -- if it causes problems we can switch it
on again.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d4fe2f4e01e414e78f8f4d9c626e8babfdf5bf48" style="color: #1068bf; text-decoration: none;">d4fe2f4e</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-07-25T14:38:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Teach SpecConstr about typeDeterminesValue
This patch addresses #21831, point 2. See
Note [generaliseDictPats] in SpecConstr
I took the opportunity to refactor the construction of specialisation
rules a bit, so that the rule name says what type we are specialising
at.
Surprisingly, there's a 20% decrease in compile time for test
perf/compiler/T18223. I took a look at it, and the code size seems the
same throughout. I did a quick ticky profile which seemed to show a
bit less substitution going on. Hmm. Maybe it's the "don't do
eta-expansion in stable unfoldings" patch, which is part of the
same MR as this patch.
Anyway, since it's a move in the right direction, I didn't think it
was worth looking into further.
Metric Decrease:
T18223
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/65f7838a281fb2e9fe28e38d2fe88e06deda27a0" style="color: #1068bf; text-decoration: none;">65f7838a</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-07-25T14:38:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add a 'notes' file in testsuite/tests/perf/compiler
This file is just a place to accumlate notes about particular
benchmarks, so that I don't keep re-inventing the wheel.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/61faff40394c67956f53064b357e5b870c4de6c9" style="color: #1068bf; text-decoration: none;">61faff40</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-07-25T14:38:50-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Get the in-scope set right in FamInstEnv.injectiveBranches
There was an assert error, as Gergo pointed out in #21896.
I fixed this by adding an InScopeSet argument to tcUnifyTyWithTFs.
And also to GHC.Core.Unify.niFixTCvSubst.
I also took the opportunity to get a couple more InScopeSets right,
and to change some substTyUnchecked into substTy.
This MR touches a lot of other files, but only because I also took the
opportunity to introduce mkInScopeSetList, and use it.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4a7256a75af2fc0318bef771a06949ffb3939d5a" style="color: #1068bf; text-decoration: none;">4a7256a7</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-07-25T20:41:55+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add location to cc phase
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/96811ba491495b601ec7d6a32bef8563b0292109" style="color: #1068bf; text-decoration: none;">96811ba4</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-07-25T20:41:55+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Avoid as pipeline when compiling c
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2869b66d49f1d225c8800909176ec3ca67ae8f9d" style="color: #1068bf; text-decoration: none;">2869b66d</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-07-25T20:42:20+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Skip test cases involving -S when testing unregisterised GHC
We no longer generate .s files anyway.
Metric Decrease:
MultiLayerModules
T10421
T13035
T13701
T14697
T16875
T18140
T18304
T18923
T9198
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/82a0991a73130f2cb70bd8ccaaff30cffd1dd2b0" style="color: #1068bf; text-decoration: none;">82a0991a</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-25T23:32:05-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: introduce nonmoving_thread_sanity way
(cherry picked from commit 19f8fce3659de3d72046bea9c61d1a82904bc4ae)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4b08797380a0a0a789844c17c6ed1570b62dc119" style="color: #1068bf; text-decoration: none;">4b087973</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-25T23:32:06-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/nonmoving: Track segment state
It can often be useful during debugging to be able to determine the
state of a nonmoving segment. Introduce some state, enabled by DEBUG, to
track this.
(cherry picked from commit 40e797ef591ae3122ccc98ab0cc3cfcf9d17bd7f)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/54a5c32d9d0792d8f3f80728edf6f39db5321fe5" style="color: #1068bf; text-decoration: none;">54a5c32d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-25T23:32:06-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/nonmoving: Don't scavenge objects which weren't evacuated
This fixes a rather subtle bug in the logic responsible for scavenging
objects evacuated to the non-moving generation. In particular, objects
can be allocated into the non-moving generation by two ways:
a. evacuation out of from-space by the garbage collector
b. direct allocation by the mutator
Like all evacuation, objects moved by (a) must be scavenged, since they
may contain references to other objects located in from-space. To
accomplish this we have the following scheme:
* each nonmoving segment's block descriptor has a scan pointer which
points to the first object which has yet to be scavenged
* the GC tracks a set of "todo" segments which have pending scavenging
work
* to scavenge a segment, we scavenge each of the unmarked blocks
between the scan pointer and segment's `next_free` pointer.
We skip marked blocks since we know the allocator wouldn't have
allocated into marked blocks (since they contain presumably live
data).
We can stop at `next_free` since, by
definition, the GC could not have evacuated any objects to blocks
above `next_free` (otherwise `next_free wouldn't be the first free
block).
However, this neglected to consider objects allocated by path (b).
In short, the problem is that objects directly allocated by the mutator
may become unreachable (but not swept, since the containing segment is
not yet full), at which point they may contain references to swept objects.
Specifically, we observed this in #21885 in the following way:
1. the mutator (specifically in #21885, a `lockCAF`) allocates an object
(specifically a blackhole, which here we will call `blkh`; see Note
[Static objects under the nonmoving collector] for the reason why) on
the non-moving heap. The bitmap of the allocated block remains 0
(since allocation doesn't affect the bitmap) and the containing
segment's (which we will call `blkh_seg`) `next_free` is advanced.
2. We enter the blackhole, evaluating the blackhole to produce a result
(specificaly a cons cell) in the nursery
3. The blackhole gets updated into an indirection pointing to the cons
cell; it is pushed to the generational remembered set
4. we perform a GC, the cons cell is evacuated into the nonmoving heap
(into segment `cons_seg`)
5. the cons cell is marked
6. the GC concludes
7. the CAF and blackhole become unreachable
8. `cons_seg` is filled
9. we start another GC; the cons cell is swept
10. we start a new GC
11. something is evacuated into `blkh_seg`, adding it to the "todo" list
12. we attempt to scavenge `blkh_seg` (namely, all unmarked blocks
between `scan` and `next_free`, which includes `blkh`). We attempt to
evacuate `blkh`'s indirectee, which is the previously-swept cons cell.
This is unsafe, since the indirectee is no longer a valid heap
object.
The problem here was that the scavenging logic *assumed* that (a) was
the only source of allocations into the non-moving heap and therefore
*all* unmarked blocks between `scan` and `next_free` were evacuated.
However, due to (b) this is not true.
The solution is to ensure that that the scanned region only encompasses
the region of objects allocated during evacuation. We do this by
updating `scan` as we push the segment to the todo-segment list to
point to the block which was evacuated into.
Doing this required changing the nonmoving scavenging implementation's
update of the `scan` pointer to bump it *once*, instead of after
scavenging each block as was done previously. This is because we may end
up evacuating into the segment being scavenged as we scavenge it. This
was quite tricky to discover but the result is quite simple,
demonstrating yet again that global mutable state should be used
exceedingly sparingly.
Fixes #21885
(cherry picked from commit 0b27ea23efcb08639309293faf13fdfef03f1060)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/25c24535ad51aa22b9cae425c6ac4ad9a8f1e1e9" style="color: #1068bf; text-decoration: none;">25c24535</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-07-25T23:32:06-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Skip a few tests as in the nonmoving collector
Residency monitoring under the non-moving collector is quite
conservative (e.g. the reported value is larger than reality) since
otherwise we would need to block on concurrent collection. Skip a few
tests that are sensitive to residency.
(cherry picked from commit 6880e4fbf728c04e8ce83e725bfc028fcb18cd70)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/42147534320f9ac22f16ffc226148ae553337d2e" style="color: #1068bf; text-decoration: none;">42147534</a></strong>
<div>
<span>by sternenseemann</span>
<i>at 2022-07-26T16:26:53-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: add flag disabling selftest rules which require QuickCheck
The hadrian executable depends on QuickCheck for building, meaning this
library (and its dependencies) will need to be built for bootstrapping
GHC in the future. Building QuickCheck, however, can require
TemplateHaskell. When building a statically linking GHC toolchain,
TemplateHaskell can be tricky to get to work, and cross-compiling
TemplateHaskell doesn't work at all without -fexternal-interpreter,
so QuickCheck introduces an element of fragility to GHC's bootstrap.
Since the selftest rules are the only part of hadrian that need
QuickCheck, we can easily eliminate this bootstrap dependency when
required by introducing a `selftest` flag guarding the rules' inclusion.
Closes #8699.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9ea29d47bbeac7abf54c9c05d105bb6f21d4c083" style="color: #1068bf; text-decoration: none;">9ea29d47</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-07-26T16:27:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Regression test for #21848
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ef30e21594e44af309c627052f63aea6fd575c9e" style="color: #1068bf; text-decoration: none;">ef30e215</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-07-28T13:56:59-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>driver: Don't create LinkNodes when -no-link is enabled
Fixes #21866
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fc23b5ed0f7924308040bf4163fc0a6da176feed" style="color: #1068bf; text-decoration: none;">fc23b5ed</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-07-28T13:57:38-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Docs: fix mistaken claim about kind signatures
This patch fixes #21806 by rectifying an incorrect claim about
the usage of kind variables in the header of a data declaration with
a standalone kind signature.
It also adds some clarifications about the number of parameters expected
in GADT declarations and in type family declarations.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2df92ee17b1b34a6c1e8f956c06494df4ede184e" style="color: #1068bf; text-decoration: none;">2df92ee1</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-02T05:20:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Correctly set withNativeCodeGen
Fixes #21918
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f29121438a4d6ee885373e32f24eaf85ffd167e1" style="color: #1068bf; text-decoration: none;">f2912143</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-02T05:20:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix since annotations in GHC.Stack.CloneStack
Fixes #21894
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/aeb8497d18c12e5e05efa0513a2a0da275082ab5" style="color: #1068bf; text-decoration: none;">aeb8497d</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-08-02T19:26:51-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add -dsuppress-coercion-types to make coercions even smaller.
Instead of `` `cast` <Co:11> :: (Some -> Really -> Large Type)``
simply print `` `cast` <Co:11> :: ... ``
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/97655ad88c42003bc5eeb5c026754b005229800c" style="color: #1068bf; text-decoration: none;">97655ad8</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-08-02T19:27:29-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>User's guide: fix typo in hasfield.rst
Fixes #21950
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/35aef18de6d04473da95cb5a19d5cc111ee7ec45" style="color: #1068bf; text-decoration: none;">35aef18d</a></strong>
<div>
<span>by Yiyun Liu</span>
<i>at 2022-08-04T02:55:07-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove TCvSubst and use Subst for both term and type-level subst
This patch removes the TCvSubst data type and instead uses Subst as
the environment for both term and type level substitution. This
change is partially motivated by the existential type proposal,
which will introduce types that contain expressions and therefore
forces us to carry around an "IdSubstEnv" even when substituting for
types. It also reduces the amount of code because "Subst" and
"TCvSubst" share a lot of common operations. There isn't any
noticeable impact on performance (geo. mean for ghc/alloc is around
0.0% but we have -94 loc and one less data type to worry abount).
Currently, the "TCvSubst" data type for substitution on types is
identical to the "Subst" data type except the former doesn't store
"IdSubstEnv". Using "Subst" for type-level substitution means there
will be a redundant field stored in the data type. However, in cases
where the substitution starts from the expression, using "Subst" for
type-level substitution saves us from having to project "Subst" into a
"TCvSubst". This probably explains why the allocation is mostly even
despite the redundant field.
The patch deletes "TCvSubst" and moves "Subst" and its relevant
functions from "GHC.Core.Subst" into "GHC.Core.TyCo.Subst".
Substitution on expressions is still defined in "GHC.Core.Subst" so we
don't have to expose the definition of "Expr" in the hs-boot file that
"GHC.Core.TyCo.Subst" must import to refer to "IdSubstEnv" (whose
codomain is "CoreExpr"). Most functions named fooTCvSubst are renamed
into fooSubst with a few exceptions (e.g. "isEmptyTCvSubst" is a
distinct function from "isEmptySubst"; the former ignores the
emptiness of "IdSubstEnv"). These exceptions mainly exist for
performance reasons and will go away when "Expr" and "Type" are
mutually recursively defined (we won't be able to take those
shortcuts if we can't make the assumption that expressions don't
appear in types).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b99819bdaa11881f0b0bec29ef6274a8c8e565a0" style="color: #1068bf; text-decoration: none;">b99819bd</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-08-04T02:55:43-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix TH + defer-type-errors interaction (#21920)
Previously, we had to disable defer-type-errors in splices because of #7276.
But this fix is no longer necessary, the test T7276 no longer segfaults
and is now correctly deferred.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fb529caedbe45160b41a20f28e21ee0ec372b05a" style="color: #1068bf; text-decoration: none;">fb529cae</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-08-04T13:57:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add a note about about W/W for unlifting strict arguments
This fixes #21236.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fffc75a92ec20976dbdb027a19ccb2315afd2618" style="color: #1068bf; text-decoration: none;">fffc75a9</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-04T13:58:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Force safeInferred to avoid retaining extra copy of DynFlags
This will only have a (very) modest impact on memory but we don't want
to retain old copies of DynFlags hanging around so best to force this
value.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0f43837f50d16b1fa24458d6ca2a042b52c95270" style="color: #1068bf; text-decoration: none;">0f43837f</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-04T13:58:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Force name selectors to ensure no reference to Ids enter the NameCache
I observed some unforced thunks in the NameCache which were retaining a
whole Id, which ends up retaining a Type.. which ends up retaining old
copies of HscEnv containing stale HomeModInfo.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0b1f5fd1ba67d04c534625740344a3c9ad525148" style="color: #1068bf; text-decoration: none;">0b1f5fd1</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-04T13:58:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix leaks in --make mode when there are module loops
This patch fixes quite a tricky leak where we would end up retaining
stale ModDetails due to rehydrating modules against non-finalised
interfaces.
== Loops with multiple boot files
It is possible for a module graph to have a loop (SCC, when ignoring boot files)
which requires multiple boot files to break. In this case we must perform the
necessary hydration steps before and after compiling modules which have boot files
which are described above for corectness but also perform an additional hydration step
at the end of the SCC to remove space leaks.
Consider the following example:
┌───────┐ ┌───────┐
│ │ │ │
│ A │ │ B │
│ │ │ │
└─────┬─┘ └───┬───┘
│ │
┌────▼─────────▼──┐
│ │
│ C │
└────┬─────────┬──┘
│ │
┌────▼──┐ ┌───▼───┐
│ │ │ │
│ A-boot│ │ B-boot│
│ │ │ │
└───────┘ └───────┘
A, B and C live together in a SCC. Say we compile the modules in order
A-boot, B-boot, C, A, B then when we compile A we will perform the hydration steps
(because A has a boot file). Therefore C will be hydrated relative to A, and the
ModDetails for A will reference C/A. Then when B is compiled C will be rehydrated again,
and so B will reference C/A,B, its interface will be hydrated relative to both A and B.
Now there is a space leak because say C is a very big module, there are now two different copies of
ModDetails kept alive by modules A and B.
The way to avoid this space leak is to rehydrate an entire SCC together at the
end of compilation so that all the ModDetails point to interfaces for .hs files.
In this example, when we hydrate A, B and C together then both A and B will refer to
C/A,B.
See #21900 for some more discussion.
-------------------------------------------------------
In addition to this simple case, there is also the potential for a leak
during parallel upsweep which is also fixed by this patch. Transcibed is
Note [ModuleNameSet, efficiency and space leaks]
Note [ModuleNameSet, efficiency and space leaks]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
During unsweep the results of compiling modules are placed into a MVar, to find
the environment the module needs to compile itself in the MVar is consulted and
the HomeUnitGraph is set accordingly. The reason we do this is that precisely tracking
module dependencies and recreating the HUG from scratch each time is very expensive.
In serial mode (-j1), this all works out fine because a module can only be compiled after
its dependencies have finished compiling and not interleaved with compiling module loops.
Therefore when we create the finalised or no loop interfaces, the HUG only contains
finalised interfaces.
In parallel mode, we have to be more careful because the HUG variable can contain
non-finalised interfaces which have been started by another thread. In order to avoid
a space leak where a finalised interface is compiled against a HPT which contains a
non-finalised interface we have to restrict the HUG to only the visible modules.
The visible modules is recording in the ModuleNameSet, this is propagated upwards
whilst compiling and explains which transitive modules are visible from a certain point.
This set is then used to restrict the HUG before the module is compiled to only
the visible modules and thus avoiding this tricky space leak.
Efficiency of the ModuleNameSet is of utmost importance because a union occurs for
each edge in the module graph. Therefore the set is represented directly as an IntSet
which provides suitable performance, even using a UniqSet (which is backed by an IntMap) is
too slow. The crucial test of performance here is the time taken to a do a no-op build in --make mode.
See test "jspace" for an example which used to trigger this problem.
Fixes #21900
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1d94a59fbadd56efec78680c89946eb425eef418" style="color: #1068bf; text-decoration: none;">1d94a59f</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-04T13:58:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Store interfaces in ModIfaceCache more directly
I realised hydration was completely irrelavant for this cache because
the ModDetails are pruned from the result. So now it simplifies things a
lot to just store the ModIface and Linkable, which we can put into the
cache straight away rather than wait for the final version of a
HomeModInfo to appear.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6c7cd50fb38f4038f6a5e2d11a5e2bf1ae93ceff" style="color: #1068bf; text-decoration: none;">6c7cd50f</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-08-04T23:01:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>cmm: Remove unused ReadOnlyData16
We don't actually emit rodata16 sections anywhere.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/16333ad780300432b974f604d9fc20ad5c6aa773" style="color: #1068bf; text-decoration: none;">16333ad7</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-08-04T23:02:20-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>findExternalRules: Don't needlessly traverse the list of rules.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/52c156748d8883200d73e0ab199f1fb103e1e940" style="color: #1068bf; text-decoration: none;">52c15674</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-08-05T12:47:05-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove backported items from 9.6 release notes
They have been backported to 9.4 in commits 5423d84bd9a28f,
13c81cb6be95c5, 67ccbd6b2d4b9b.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/78d232f5ca7f02b8f743e6982e710a4bfb309c4f" style="color: #1068bf; text-decoration: none;">78d232f5</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-05T12:47:40-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Fix pages job
The job has been failing because we don't bundle haddock docs anymore in
the docs dist created by hadrian.
Fixes #21789
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/037bc9c94a7977d0382b9d510b4ba6c08f87fbfb" style="color: #1068bf; text-decoration: none;">037bc9c9</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-05T22:00:29-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>codeGen/X86: Don't clobber switch variable in switch generation
Previously ce8745952f99174ad9d3bdc7697fd086b47cdfb5 assumed that it was
safe to clobber the switch variable when generating code for a jump
table since we were at the end of a block. However, this assumption is
wrong; the register could be live in the jump target.
Fixes #21968.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/50c8e1c5684eda39ba1c7f78fcd0eff57f1b5dbd" style="color: #1068bf; text-decoration: none;">50c8e1c5</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-05T22:01:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix equality operator in jspace test
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e9c77a22d749b7f3ab84a715db68e984c8350684" style="color: #1068bf; text-decoration: none;">e9c77a22</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-08-06T06:13:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve BUILD_PAP comments
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4123414723eb57ed5d3f8e7df0001178033c2367" style="color: #1068bf; text-decoration: none;">41234147</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-08-06T06:13:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make dropTail comment a haddock comment
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ff11d579dd1ff8f138a24f698517f3cbcff219f7" style="color: #1068bf; text-decoration: none;">ff11d579</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-08-06T06:13:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add one more sanity check in stg_restore_cccs
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1f6c56ae9aa4ab4977ba376ac901d5256bf0aba0" style="color: #1068bf; text-decoration: none;">1f6c56ae</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-08-06T06:13:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>StgToCmm: Fix isSimpleScrut when profiling is enabled.
When profiling is enabled we must enter functions that might represent
thunks in order for their sccs to show up in the profile.
We might allocate even if the function is already evaluated in this
case. So we can't consider any potential function thunk to be a simple
scrut when profiling.
Not doing so caused profiled binaries to segfault.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fab0ee93abda33bf5c7eb5ca0372e12bd140a252" style="color: #1068bf; text-decoration: none;">fab0ee93</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-08-06T06:13:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Change `-fprof-late` to insert cost centres after unfolding creation.
The former behaviour of adding cost centres after optimization but
before unfoldings are created is not available via the flag
`prof-late-inline` instead.
I also reduced the overhead of -fprof-late* by pushing the cost centres
into lambdas. This means the cost centres will only account for
execution of functions and not their partial application.
Further I made LATE_CC cost centres it's own CC flavour so they now
won't clash with user defined ones if a user uses the same string for
a custom scc.
LateCC: Don't put cost centres inside constructor workers.
With -fprof-late they are rarely useful as the worker is usually
inlined. Even if the worker is not inlined or we use -fprof-late-linline
they are generally not helpful but bloat compile and run time
significantly. So we just don't add sccs inside constructor workers.
-------------------------
Metric Decrease:
T13701
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f8bec4e37827bc8ff77a00773692fea4e7193af4" style="color: #1068bf; text-decoration: none;">f8bec4e3</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-06T06:13:53-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Fix hadrian bootstrapping of release pipelines
Previously we would attempt to test hadrian bootstrapping in the
`validate` build flavour. However, `ci.sh` refuses to run validation
builds during release pipelines, resulting in job failures. Fix this by
testing bootstrapping in the `release` flavour during release pipelines.
We also attempted to record perf notes for these builds, which is
redundant work and undesirable now since we no longer build in a
consistent flavour.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c0348865ff8b9100a8ec54be03e375c3dddc8900" style="color: #1068bf; text-decoration: none;">c0348865</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-06T11:45:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>compiler: Eliminate two uses of foldr in favor of foldl'
These two uses constructed maps, which is a case where foldl' is
generally more efficient since we avoid constructing an intermediate
O(n)-depth stack.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d2e4e123d69a18e52b569cdb61946b2e7f30ec1e" style="color: #1068bf; text-decoration: none;">d2e4e123</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-06T11:45:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Fix code style
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/57f530d38bf49b4dfc66b1495454d2d80a0c70c8" style="color: #1068bf; text-decoration: none;">57f530d3</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-06T11:45:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>genprimopcode: Drop ArrayArray# references
As ArrayArray# no longer exists
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7267cd52fb0b06479b9ceea2dc4700d949a1d75b" style="color: #1068bf; text-decoration: none;">7267cd52</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-06T11:45:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>base: Organize Haddocks in GHC.Conc.Sync
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/aa818a9f83308d0742e8f8c91cb9878182dacce5" style="color: #1068bf; text-decoration: none;">aa818a9f</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-06T11:48:50-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add primop to list threads
A user came to #ghc yesterday wondering how best to check whether they
were leaking threads. We ended up using the eventlog but it seems to me
like it would be generally useful if Haskell programs could query their
own threads.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6d1700b6dca6defb8768c493a1059c4215749b53" style="color: #1068bf; text-decoration: none;">6d1700b6</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-06T11:51:35-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Move thread labels into TSO
This eliminates the thread label HashTable and instead tracks this
information in the TSO, allowing us to use proper StgArrBytes arrays for
backing the label and greatly simplifying management of object lifetimes
when we expose them to the user with the coming `threadLabel#` primop.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1472044ba587b575372102bbb0c8cc4d85df74db" style="color: #1068bf; text-decoration: none;">1472044b</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-06T11:54:52-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add a primop to query the label of a thread
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/43f2b271c12943ed7d5d5d5e387d41ed404eb7a8" style="color: #1068bf; text-decoration: none;">43f2b271</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-06T11:55:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>base: Share finalization thread label
For efficiency's sake we float the thread label assigned to the
finalization thread to the top-level, ensuring that we only need to
encode the label once.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1d63b4fb4d0757614ace880e25ed2c94e51b679c" style="color: #1068bf; text-decoration: none;">1d63b4fb</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-06T11:57:11-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>users-guide: Add release notes entry for thread introspection support
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/09bca1de6a336240f4aecfc7c43937dd811d5b22" style="color: #1068bf; text-decoration: none;">09bca1de</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-07T01:19:35-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Fix binary distribution install attributes
Previously we would use plain `cp` to install various parts of the
binary distribution. However, `cp`'s behavior w.r.t. file attributes is
quite unclear; for this reason it is much better to rather use
`install`.
Fixes #21965.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2b8ea16d92a3bd3a74d30b78991a7d00e7038f58" style="color: #1068bf; text-decoration: none;">2b8ea16d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-07T01:19:35-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Fix installation of system-cxx-std-lib package conf
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7b514848b8c9dfdd8455375e4e98c35a0d856749" style="color: #1068bf; text-decoration: none;">7b514848</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-07T01:20:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Bump Docker images
To give the ARMv7 job access to lld, fixing #21875.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/afa584a327ce9aaf560c6ff09781c6e810c23a60" style="color: #1068bf; text-decoration: none;">afa584a3</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-07T05:08:52-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Don't use mk/config.mk.in
Ultimately we want to drop mk/config.mk so here I extract the bits
needed by the Hadrian bindist installation logic into a Hadrian-specific
file. While doing this I fixed binary distribution installation, #21901.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b9bb45d7368ceeb874ded7e55e603327c103ce9f" style="color: #1068bf; text-decoration: none;">b9bb45d7</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-07T05:08:52-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Fix naming of cross-compiler wrappers
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/78d04cfadfd728bb088b08b1e88905b43cc0360c" style="color: #1068bf; text-decoration: none;">78d04cfa</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-07T11:44:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Extend xattr Darwin hack to cover /lib
As noted in #21506, it is now necessary to remove extended attributes
from `/lib` as well as `/bin` to avoid SIP issues on Darwin.
Fixes #21506.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/20457d775885d6c3df020d204da9a7acfb3c2e5a" style="color: #1068bf; text-decoration: none;">20457d77</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-08-08T14:42:26+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>NCG(x86): Compile add+shift as lea if possible.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/742292e461e4040faecf3482349a4574a9184239" style="color: #1068bf; text-decoration: none;">742292e4</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-08-08T16:46:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>dataToTag#: Skip runtime tag check if argument is infered tagged
This addresses one part of #21710.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1504a93eecfc9efb3e6d2bda492d811dc32b6122" style="color: #1068bf; text-decoration: none;">1504a93e</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-08-08T16:47:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: remove redundant stg_traceCcszh
This out-of-line primop has no Haskell wrapper and hasn't been used
anywhere in the tree. Furthermore, the code gets in the way of !7632, so
it should be garbage collected.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a52de3cbe63af21085d6237b7e540e569a9c0f2e" style="color: #1068bf; text-decoration: none;">a52de3cb</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-08-08T16:47:50-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Document a divergence from the report in parsing function lhss.
GHC is happy to parse `(f) x y = x + y` when it should be a parse error
based on the Haskell report. Seems harmless enough so we won't fix it
but it's documented now.
Fixes #19788
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5765e13370634979eb6a0d9f67aa9afa797bee46" style="color: #1068bf; text-decoration: none;">5765e133</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-08T16:48:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Add release job for aarch64/debian 11
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5b26f32412d503c9004fc0a2e6e9a2ab680d43f3" style="color: #1068bf; text-decoration: none;">5b26f324</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-08T19:39:20-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Introduce validation job for aarch64 cross-compilation
Begins to address #11958.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e866625cc731521546745f615092ab0fa163ad42" style="color: #1068bf; text-decoration: none;">e866625c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-08T19:39:20-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump process submodule
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ae707762335dabe2bb7e40639fd2ab2c7d3234fd" style="color: #1068bf; text-decoration: none;">ae707762</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-08T19:39:20-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Add basic support for cross-compiler testiing
Here we add a simple qemu-based test for cross-compilers.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/50912d689b6c405f979fd786cf2858d04552fc29" style="color: #1068bf; text-decoration: none;">50912d68</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-08T19:39:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Ensure that Array# card arrays are initialized
In #19143 I noticed that newArray# failed to initialize the card table
of newly-allocated arrays. However, embarrassingly, I then only fixed
the issue in newArrayArray# and, in so doing, introduced the potential
for an integer underflow on zero-length arrays (#21962).
Here I fix the issue in newArray#, this time ensuring that we do not
underflow in pathological cases.
Fixes #19143.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e5ceff56a6f11e4adc17a7cc05645b3e3a66ab97" style="color: #1068bf; text-decoration: none;">e5ceff56</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-08T19:39:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Add test for #21962
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c1c08bd829fb33a185f0a71f08babe5d7e6556fc" style="color: #1068bf; text-decoration: none;">c1c08bd8</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-09T02:31:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Don't use coreutils on Darwin
In general we want to ensure that the tested environment is as similar
as possible to the environment the user will use. In the case of Darwin,
this means we want to use the system's BSD command-line utilities, not
coreutils.
This would have caught #21974.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1c582f44e41f534a8506a76618f6cffe5d71ed42" style="color: #1068bf; text-decoration: none;">1c582f44</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-09T02:31:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Fix bindist installation on Darwin
It turns out that `cp -P` on Darwin does not always copy a symlink as
a symlink. In order to get these semantics one must pass `-RP`. It's not
entirely clear whether this is valid under POSIX, but it is nevertheless
what Apple does.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/681aa076259c05c626266cf516de7e7c5524eadb" style="color: #1068bf; text-decoration: none;">681aa076</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-09T02:31:49-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Fix access mode of installed package registration files
Previously hadrian's bindist Makefile would modify package
registrations placed by `install` via a shell pipeline and `mv`.
However, the use of `mv` means that if umask is set then the user may
otherwise end up with package registrations which are inaccessible.
Fix this by ensuring that the mode is 0644.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e9dfd26a38182e9c284b7db16cb10fc889eedf9e" style="color: #1068bf; text-decoration: none;">e9dfd26a</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-08-09T02:32:24-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Cleanups around pretty-printing
* Remove hack when printing OccNames. No longer needed since e3dcc0d5
* Remove unused `pprCmms` and `instance Outputable Instr`
* Simplify `pprCLabel` (no need to pass platform)
* Remove evil `Show`/`Eq` instances for `SDoc`. They were needed by
ImmLit, but that can take just a String instead.
* Remove instance `Outputable CLabel` - proper output of labels
needs a platform, and is done by the `OutputableP` instance
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/66d2e927842653fbc1cf2e6f997f443c78c2203b" style="color: #1068bf; text-decoration: none;">66d2e927</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-09T13:46:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker: Resolve iconv_* on FreeBSD
FreeBSD's libiconv includes an implementation of the
iconv_* functions in libc. Unfortunately these can
only be resolved using dlvsym, which is how the RTS linker
usually resolves such functions. To fix this we include an ad-hoc
special case for iconv_*.
Fixes #20354.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5d66a0ce39f47b7b9f6c732a18ac6e102a21ee6b" style="color: #1068bf; text-decoration: none;">5d66a0ce</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-09T13:46:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>system-cxx-std-lib: Add support for FreeBSD libcxxrt
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ea90e61dc3c6ba0433e008284dc6c3970ead98a7" style="color: #1068bf; text-decoration: none;">ea90e61d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-09T13:46:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Bump to use freebsd13 runners
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d71a20514546e0befe6e238d0658cbaad5a13996" style="color: #1068bf; text-decoration: none;">d71a2051</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-08-09T13:47:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix size_up_alloc to account for UnliftedDatatypes
The size_up_alloc function mistakenly considered any type that isn't
lifted to not allocate anything, which is wrong. What we want instead
is to check the type isn't boxed. This accounts for (BoxedRep Unlifted).
Fixes #21939
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/76b52cf0c52ee05c20f7d1b80f5600eecab3c42a" style="color: #1068bf; text-decoration: none;">76b52cf0</a></strong>
<div>
<span>by Douglas Wilson</span>
<i>at 2022-08-10T06:01:53-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: 21651 add test for closeFdWith + setNumCapabilities
This bug does not affect windows, which does not use the
base module GHC.Event.Thread.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7589ee7241d46b393979d98d4ded17a15ee974fb" style="color: #1068bf; text-decoration: none;">7589ee72</a></strong>
<div>
<span>by Douglas Wilson</span>
<i>at 2022-08-10T06:01:53-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>base: Fix races in IOManager (setNumCapabilities,closeFdWith)
Fix for #21651
Fixes three bugs:
- writes to eventManager should be atomic. It is accessed concurrently by ioManagerCapabilitiesChanged and closeFdWith.
- The race in closeFdWith described in the ticket.
- A race in getSystemEventManager where it accesses the 'IOArray' in
'eventManager' before 'ioManagerCapabilitiesChanged' has written to
'eventManager', causing an Array Index exception. The fix here is to
'yield' and retry.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dc76439de605bb833d6e226b176879cb0d5262ce" style="color: #1068bf; text-decoration: none;">dc76439d</a></strong>
<div>
<span>by Trevis Elser</span>
<i>at 2022-08-10T06:02:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Updates language extension documentation
Adding a 'Status' field with a few values:
- Deprecated
- Experimental
- InternalUseOnly
- Noting if included in 'GHC2021', 'Haskell2010' or 'Haskell98'
Those values are pulled from the existing descriptions or elsewhere in
the documentation.
While at it, include the :implied by: where appropriate, to provide
more detail.
Fixes #21475
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/823fe5b56450a7eefbf41ce8ece34095bf2217ee" style="color: #1068bf; text-decoration: none;">823fe5b5</a></strong>
<div>
<span>by Jens Petersen</span>
<i>at 2022-08-10T06:03:07-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian RunRest: add type signature for stageNumber
avoids warning seen on 9.4.1:
src/Settings/Builders/RunTest.hs:264:53: warning: [-Wtype-defaults]
• Defaulting the following constraints to type ‘Integer’
(Show a0)
arising from a use of ‘show’
at src/Settings/Builders/RunTest.hs:264:53-84
(Num a0)
arising from a use of ‘stageNumber’
at src/Settings/Builders/RunTest.hs:264:59-83
• In the second argument of ‘(++)’, namely
‘show (stageNumber (C.stage ctx))’
In the second argument of ‘($)’, namely
‘"config.stage=" ++ show (stageNumber (C.stage ctx))’
In the expression:
arg $ "config.stage=" ++ show (stageNumber (C.stage ctx))
|
264 | , arg "-e", arg $ "config.stage=" ++ show (stageNumber (C.stage ctx))
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
compilation tested locally
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f95bbdcae3e6710a92dd8244321677eef91890de" style="color: #1068bf; text-decoration: none;">f95bbdca</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-08-10T09:44:46-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add support for external static plugins (#20964)
This patch adds a new command-line flag:
-fplugin-library=<file-path>;<unit-id>;<module>;<args>
used like this:
-fplugin-library=path/to/plugin.so;package-123;Plugin.Module;["Argument","List"]
It allows a plugin to be loaded directly from a shared library. With
this approach, GHC doesn't compile anything for the plugin and doesn't
load any .hi file for the plugin and its dependencies. As such GHC
doesn't need to support two environments (one for plugins, one for
target code), which was the more ambitious approach tracked in #14335.
Fix #20964
Co-authored-by: Josh Meredith <joshmeredith2008@gmail.com>
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5bc489cac104717f09be73f2b578719bcc1e3fcb" style="color: #1068bf; text-decoration: none;">5bc489ca</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-10T09:45:22-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Fix ARMv7 build
It appears that the CI refactoring carried out in
5ff690b8474c74e9c968ef31e568c1ad0fe719a1 failed to carry over some
critical configuration: setting the build/host/target platforms and
forcing use of a non-broken linker.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/596db9a5f966643bcc9994d45f2f6ffb4037ad74" style="color: #1068bf; text-decoration: none;">596db9a5</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-10T09:45:22-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Run ARMv7 jobs when ~ARM label is used
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7cabea7c9b10d2d15a4798be9f3130994393dd9c" style="color: #1068bf; text-decoration: none;">7cabea7c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-10T15:37:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Don't attempt to install documentation if doc/ doesn't exist
Previously we would attempt to install documentation even if the `doc`
directory doesn't exist (e.g. due to `--docs=none`). This would result
in the surprising side-effect of the entire contents of the bindist
being installed in the destination documentation directory. Fix this.
Fixes #21976.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/67575f2004340564d6e52af055ed6fb43d3f9711" style="color: #1068bf; text-decoration: none;">67575f20</a></strong>
<div>
<span>by normalcoder</span>
<i>at 2022-08-10T15:38:34-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ncg/aarch64: Don't use x18 register on AArch64/Darwin
Apple's ABI documentation [1] says: "The platforms reserve register x18.
Don’t use this register." While this wasn't problematic in previous
Darwin releases, macOS 13 appears to start zeroing this register
periodically. See #21964.
[1] https://developer.apple.com/documentation/xcode/writing-arm64-code-for-apple-platforms
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/45eb4cbe372eadb8331c6dbc84f14c681b1a8a9b" style="color: #1068bf; text-decoration: none;">45eb4cbe</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-08-10T22:41:12-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Note [Trimming auto-rules]: State that this improves compiler perf.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5c24b1b3a9d6a4c2f471fd7d8ec65141a8b46357" style="color: #1068bf; text-decoration: none;">5c24b1b3</a></strong>
<div>
<span>by Bodigrim</span>
<i>at 2022-08-10T22:41:50-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Document that threadDelay / timeout are susceptible to overflows on 32-bit machines
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ff67c79ee742024ca0ef41a9a7e540e1662d46bd" style="color: #1068bf; text-decoration: none;">ff67c79e</a></strong>
<div>
<span>by Alan Zimmerman</span>
<i>at 2022-08-11T16:19:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>EPA: DotFieldOcc does not have exact print annotations
For the code
{-# LANGUAGE OverloadedRecordUpdate #-}
operatorUpdate f = f{(+) = 1}
There are no exact print annotations for the parens around the +
symbol, nor does normal ppr print them.
This MR fixes that.
Closes #21805
Updates haddock submodule
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dca43a04fb36e0ae0ed61455f215660eed2856a9" style="color: #1068bf; text-decoration: none;">dca43a04</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-11T16:20:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Revert "gitlab-ci: Add release job for aarch64/debian 11"
This reverts commit 5765e13370634979eb6a0d9f67aa9afa797bee46.
The job was not tested before being merged and fails CI
(https://gitlab.haskell.org/ghc/ghc/-/jobs/1139392)
Ticket #22005
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ffc9116e6223c0a90a51c05ff4b471b7f5af1b55" style="color: #1068bf; text-decoration: none;">ffc9116e</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-08-16T09:01:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>typo</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cd6f5bfd0cc2bcf74de1d9edb43fe4b338b4c4e3" style="color: #1068bf; text-decoration: none;">cd6f5bfd</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-16T09:02:02-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CmmToLlvm: Don't aliasify builtin LLVM variables
Our aliasification logic would previously turn builtin LLVM variables
into aliases, which apparently confuses LLVM. This manifested in
initializers failing to be emitted, resulting in many profiling failures
with the LLVM backend.
Fixes #22019.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dc7da356daa78fb680f000736cd690f09fa1d856" style="color: #1068bf; text-decoration: none;">dc7da356</a></strong>
<div>
<span>by Bryan Richter</span>
<i>at 2022-08-16T09:02:38-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>run_ci: remove monoidal-containers
Fixes #21492
MonoidalMap is inlined and used to implement Variables, as before.
The top-level value "jobs" is reimplemented as a regular Map, since it
doesn't use the monoidal union anyway.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/641105441d3ed7087c5d59187c8c94bc7bc08061" style="color: #1068bf; text-decoration: none;">64110544</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-08-16T09:03:15-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CmmToAsm/AArch64: correct a typo
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f6a5524abaf744055e9bec40504c7eae28700537" style="color: #1068bf; text-decoration: none;">f6a5524a</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-08-16T14:34:11-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix #21979 - compact-share failing with -O
I don't have good reason to believe the optimization level should affect
if sharing works or not here. So limit the test to the normal way.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/68154a9d3b4f5e84fa50146adb2c2019ec481456" style="color: #1068bf; text-decoration: none;">68154a9d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-16T14:34:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>users-guide: Fix reference to dead llvm-version substitution
Fixes #22052.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/28c60d266c176f6e2c5eac9f3231bfc5fd0f7b23" style="color: #1068bf; text-decoration: none;">28c60d26</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-16T14:34:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>users-guide: Fix incorrect reference to `:extension: role
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/71102c8f72e0c5711f2410e449af8cf0b2baa063" style="color: #1068bf; text-decoration: none;">71102c8f</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-16T14:34:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>users-guide: Add :ghc-flag: reference
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/385f420b2f1bd7d11126e28c4dc21ef0dbe741de" style="color: #1068bf; text-decoration: none;">385f420b</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-16T14:34:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Place manpage in docroot
This relocates it from docs/ to doc/
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/84598f2ec63cbb145243c101af8aeb436f653ed3" style="color: #1068bf; text-decoration: none;">84598f2e</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-16T14:34:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump haddock submodule
Includes merge of `main` into `ghc-head` as well as some Haddock users
guide fixes.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/59ce787ca83a311cc546790dea977cd88aa7883f" style="color: #1068bf; text-decoration: none;">59ce787c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-16T14:34:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>base: Add changelog entries from ghc-9.2
Closes #21922.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a14e6ae3f880ad2c9645a6b99a551734eda802c0" style="color: #1068bf; text-decoration: none;">a14e6ae3</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-16T14:34:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>relnotes: Add "included libraries" section
As noted in #21988, some users rely on this.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a4212edccceaec475d4aca240cbfe9db98b77d33" style="color: #1068bf; text-decoration: none;">a4212edc</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-16T14:34:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>users-guide: Rephrase the rewrite rule documentation
Previously the wording was a tad unclear. Fix this.
Closes #21114.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3e493dfd4db4b61ffc3f1faf7e38663118473d99" style="color: #1068bf; text-decoration: none;">3e493dfd</a></strong>
<div>
<span>by Peter Becich</span>
<i>at 2022-08-17T08:43:21+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Implement Response File support for HPC
This is an improvement to HPC authored by Richard Wallace
(https://github.com/purefn) and myself. I have received permission from
him to attempt to upstream it. This improvement was originally
implemented as a patch to HPC via input-output-hk/haskell.nix:
https://github.com/input-output-hk/haskell.nix/pull/1464
Paraphrasing Richard, HPC currently requires all inputs as command line arguments.
With large projects this can result in an argument list too long error.
I have only seen this error in Nix, but I assume it can occur is a plain Unix environment.
This MR adds the standard response file syntax support to HPC. For
example you can now pass a file to the command line which contains the
arguments.
```
hpc @response_file_1 @response_file_2 ...
The contents of a Response File must have this format:
COMMAND ...
example:
report my_library.tix --include=ModuleA --include=ModuleB
```
Updates hpc submodule
Co-authored-by: Richard Wallace <rwallace@thewallacepack.net>
Fixes #22050
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/436867d6b07c69170e8e51283ac57ed3eab52ae4" style="color: #1068bf; text-decoration: none;">436867d6</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-18T09:24:08-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ghc-heap: Fix decoding of TSO closures
An extra field was added to the TSO structure in 6d1700b6 but the
decoding logic in ghc-heap was not updated for this new field.
Fixes #22046
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a740a4c56416c7c1bc914a7a9207207e17833573" style="color: #1068bf; text-decoration: none;">a740a4c5</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-18T09:24:44-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>driver: Honour -x option
The -x option is used to manually specify which phase a file should be
started to be compiled from (even if it lacks the correct extension). I
just failed to implement this when refactoring the driver.
In particular Cabal calls GHC with `-E -cpp -x hs Foo.cpphs` to
preprocess source files using GHC.
I added a test to exercise this case.
Fixes #22044
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e293029db0d60852908feaf2312794849194b08c" style="color: #1068bf; text-decoration: none;">e293029d</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-08-18T09:25:19-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Be more careful in chooseInferredQuantifiers
This fixes #22065. We were failing to retain a quantifier that
was mentioned in the kind of another retained quantifier.
Easy to fix.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/714c936fa31d83cb46b52d1dd920081474793a71" style="color: #1068bf; text-decoration: none;">714c936f</a></strong>
<div>
<span>by Bryan Richter</span>
<i>at 2022-08-18T18:37:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Add test for #21583
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/989b844d7598fd71ffd76e00d8d1f5207d58fd61" style="color: #1068bf; text-decoration: none;">989b844d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-18T18:37:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>compiler: Drop --build-id=none hack
Since 2011 the object-joining implementation has had a hack to pass
`--build-id=none` to `ld` when supported, seemingly to work around a
linker bug. This hack is now unnecessary and may break downstream users
who expect objects to have valid build-ids. Remove it.
Closes #22060.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/519c712ea570210f7a3a1f1449bc26b985eb7db2" style="color: #1068bf; text-decoration: none;">519c712e</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-19T00:09:11-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make ru_fn field strict to avoid retaining Ids
It's better to perform this projection from Id to Name strictly so we
don't retain an old Id (hence IdInfo, hence Unfolding, hence everything
etc)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7dda04b00407c083949363b653538510a1355e12" style="color: #1068bf; text-decoration: none;">7dda04b0</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-19T00:09:11-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Force `getOccFS bndr` to avoid retaining reference to Bndr.
This is another symptom of #19619
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4303acba89b26cc3ae05527d701cba7d84edafcb" style="color: #1068bf; text-decoration: none;">4303acba</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-19T00:09:11-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Force unfoldings when they are cleaned-up in Tidy and CorePrep
If these thunks are not forced then the entire unfolding for the binding
is live throughout the whole of CodeGen despite the fact it should have
been discarded.
Fixes #22071
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2361b3bc08811b0d2fb8f8fc5635b7c2fec157c6" style="color: #1068bf; text-decoration: none;">2361b3bc</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-19T00:09:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>haddock docs: Fix links from identifiers to dependent packages
When implementing the base_url changes I made the pretty bad mistake of
zipping together two lists which were in different orders. The simpler
thing to do is just modify `haddockDependencies` to also return the
package identifier so that everything stays in sync.
Fixes #22001
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9a7e2ea1684c3a3ac91e4cdbb07b9d217f58dd4c" style="color: #1068bf; text-decoration: none;">9a7e2ea1</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-19T00:10:23-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Revert "Refactor SpecConstr to use treat bindings uniformly"
This reverts commit 415468fef8a3e9181b7eca86de0e05c0cce31729.
This refactoring introduced quite a severe residency regression (900MB
live from 650MB live when compiling mmark), see #21993 for a reproducer
and more discussion.
Ticket #21993
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9789e8454ad9f315169063b344a56c4216c12711" style="color: #1068bf; text-decoration: none;">9789e845</a></strong>
<div>
<span>by Zachary Wood</span>
<i>at 2022-08-19T14:17:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>tc: warn about lazy annotations on unlifted arguments (fixes #21951)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e5567289c576a76f62bd78bd823a824c7ca83de6" style="color: #1068bf; text-decoration: none;">e5567289</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-08-19T14:18:03-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix #22048 where we failed to drop rules for -fomit-interface-pragmas.
Now we also filter the local rules (again) which fixes the issue.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/51ffd00906d1c75dc72c71ba4216b480996c8ce2" style="color: #1068bf; text-decoration: none;">51ffd009</a></strong>
<div>
<span>by Swann Moreau</span>
<i>at 2022-08-19T18:29:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Print constraints in quotes (#21167)
This patch improves the uniformity of error message formatting by
printing constraints in quotes, as we do for types.
Fix #21167
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ab3e0f5a02f6a1b63407e08bb97a228a76c27abd" style="color: #1068bf; text-decoration: none;">ab3e0f5a</a></strong>
<div>
<span>by Sasha Bogicevic</span>
<i>at 2022-08-19T18:29:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>19217 Implicitly quantify type variables in :kind command
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9939e95fb7b808b68aca00dfabbb99079927f482" style="color: #1068bf; text-decoration: none;">9939e95f</a></strong>
<div>
<span>by MorrowM</span>
<i>at 2022-08-21T16:51:38-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Recognize file-header pragmas in GHCi (#21507)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fb7c2d99f7df880b00b0d31ee7436c6d8eb3ba15" style="color: #1068bf; text-decoration: none;">fb7c2d99</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-21T16:52:13-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Fix bootstrapping with ghc-9.4
The error was that we were trying to link together
containers from boot package library (which depends template-haskell in boot package library)
template-haskell from in-tree package database
So the fix is to build containers in stage0 (and link against template-haskell built in stage0).
Fixes #21981
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b946232c328ed88fc34a7c83a335b2f5a4f777ed" style="color: #1068bf; text-decoration: none;">b946232c</a></strong>
<div>
<span>by Mario Blažević</span>
<i>at 2022-08-22T22:06:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Added pprType with precedence argument, as a prerequisite to fix issues #21723 and #21942.
* refines the precedence levels, adding `qualPrec` and `funPrec` to better control parenthesization
* `pprParendType`, `pprFunArgType`, and `instance Ppr Type` all just call `pprType` with proper precedence
* `ParensT` constructor is now always printed parenthesized
* adds the precedence argument to `pprTyApp` as well, as it needs to keep track and pass it down
* using `>=` instead of former `>` to match the Core type printing logic
* some test outputs have changed, losing extraneous parentheses
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fe4ff0f7cd50361cade3dd4bef15065dff075bfc" style="color: #1068bf; text-decoration: none;">fe4ff0f7</a></strong>
<div>
<span>by Mario Blažević</span>
<i>at 2022-08-22T22:06:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix and test for issue #21723
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/33968354176dcf68d4dbd717d2a0d77474edc302" style="color: #1068bf; text-decoration: none;">33968354</a></strong>
<div>
<span>by Mario Blažević</span>
<i>at 2022-08-22T22:06:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Test for issue #21942
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c96552517acc55ba307add250d499d97dc203677" style="color: #1068bf; text-decoration: none;">c9655251</a></strong>
<div>
<span>by Mario Blažević</span>
<i>at 2022-08-22T22:06:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Updated the changelog
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/80102356468d87b683d5360a291c44b057a52ade" style="color: #1068bf; text-decoration: none;">80102356</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-22T22:06:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Don't duplicate binaries on installation
Previously we used `install` on symbolic links, which ended up
copying the target file rather than installing a symbolic link.
Fixes #22062.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b929063ec5473fc36fe3976ff0eb8064a2d2fc3d" style="color: #1068bf; text-decoration: none;">b929063e</a></strong>
<div>
<span>by M Farkas-Dyck</span>
<i>at 2022-08-24T02:37:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Unbreak Haddock comments in `GHC.Core.Opt.WorkWrap.Utils`.
Closes #22092.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/112e4f9c9c299b460e37a60d8f8d8693aa6ab06a" style="color: #1068bf; text-decoration: none;">112e4f9c</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-08-24T02:37:38-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>driver: don't actually merge objects when ar -L works
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a9f0e68ede36ad571d32e66a8e49e8c9f3b6a92b" style="color: #1068bf; text-decoration: none;">a9f0e68e</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-24T02:38:13-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Consistently use MiB in stats output
Previously we would say `MB` even where we
meant `MiB`.</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a90298cc7291677fddd9e374e222676306265c17" style="color: #1068bf; text-decoration: none;">a90298cc</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-08-25T08:38:16+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix arityType: -fpedantic-bottoms, join points, etc
This MR fixes #21694, #21755. It also makes sure that #21948 and
fix to #21694.
* For #21694 the underlying problem was that we were calling arityType
on an expression that had free join points. This is a Bad Bad Idea.
See Note [No free join points in arityType].
* To make "no free join points in arityType" work out I had to avoid
trying to use eta-expansion for runRW#. This entailed a few changes
in the Simplifier's treatment of runRW#. See
GHC.Core.Opt.Simplify.Iteration Note [No eta-expansion in runRW#]
* I also made andArityType work correctly with -fpedantic-bottoms;
see Note [Combining case branches: andWithTail].
* Rewrote Note [Combining case branches: optimistic one-shot-ness]
* arityType previously treated join points differently to other
let-bindings. This patch makes them unform; arityType analyses
the RHS of all bindings to get its ArityType, and extends am_sigs.
I realised that, now we have am_sigs giving the ArityType for
let-bound Ids, we don't need the (pre-dating) special code in
arityType for join points. But instead we need to extend the env for
Rec bindings, which weren't doing before. More uniform now. See
Note [arityType for let-bindings].
This meant we could get rid of ae_joins, and in fact get rid of
EtaExpandArity altogether. Simpler.
* And finally, it was the strange treatment of join-point Ids in
arityType (involving a fake ABot type) that led to a serious bug:
#21755. Fixed by this refactoring, which treats them uniformly;
but without breaking #18328.
In fact, the arity for recursive join bindings is pretty tricky;
see the long Note [Arity for recursive join bindings]
in GHC.Core.Opt.Simplify.Utils. That led to more refactoring,
including deciding that an Id could have an Arity that is bigger
than its JoinArity; see Note [Invariants on join points], item
2(b) in GHC.Core
* Make sure that the "demand threshold" for join points in DmdAnal
is no bigger than the join-arity. In GHC.Core.Opt.DmdAnal see
Note [Demand signatures are computed for a threshold arity based on idArity]
* I moved GHC.Core.Utils.exprIsDeadEnd into GHC.Core.Opt.Arity,
where it more properly belongs.
* Remove an old, redundant hack in FloatOut. The old Note was
Note [Bottoming floats: eta expansion] in GHC.Core.Opt.SetLevels.
Compile time improves very slightly on average:
Metrics: compile_time/bytes allocated
---------------------------------------------------------------------------------------
T18223(normal) ghc/alloc 725,808,720 747,839,216 +3.0% BAD
T6048(optasm) ghc/alloc 105,006,104 101,599,472 -3.2% GOOD
geo. mean -0.2%
minimum -3.2%
maximum +3.0%
For some reason Windows was better
T10421(normal) ghc/alloc 125,888,360 124,129,168 -1.4% GOOD
T18140(normal) ghc/alloc 85,974,520 83,884,224 -2.4% GOOD
T18698b(normal) ghc/alloc 236,764,568 234,077,288 -1.1% GOOD
T18923(normal) ghc/alloc 75,660,528 73,994,512 -2.2% GOOD
T6048(optasm) ghc/alloc 112,232,512 108,182,520 -3.6% GOOD
geo. mean -0.6%
I had a quick look at T18223 but it is knee deep in coercions and
the size of everything looks similar before and after. I decided
to accept that 3% increase in exchange for goodness elsewhere.
Metric Decrease:
T10421
T18140
T18698b
T18923
T6048
Metric Increase:
T18223
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/909edcfccae6664702384f83b1b5840eb3dc0a10" style="color: #1068bf; text-decoration: none;">909edcfc</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-25T10:03:34-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>upload_ghc_libs: Add means of passing Hackage credentials
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/28402eed1bd0ec27d1dd5b663304a741de0ce2c3" style="color: #1068bf; text-decoration: none;">28402eed</a></strong>
<div>
<span>by M Farkas-Dyck</span>
<i>at 2022-08-25T10:04:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Scrub some partiality in `CommonBlockElim`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/54affbfa2d3bb550d0a991518d6e7f9a4e51e91f" style="color: #1068bf; text-decoration: none;">54affbfa</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-25T20:05:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Fix whitespace
Previously this region of Settings.Packages was incorrectly indented.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c4bba0f0a158b8bc5ea7e715215b63a902ae4b1c" style="color: #1068bf; text-decoration: none;">c4bba0f0</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-25T20:05:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>validate: Drop --legacy flag
In preparation for removal of the legacy `make`-based build system.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/822b0302f3406bb5e916d72c36566322ba900e76" style="color: #1068bf; text-decoration: none;">822b0302</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-25T20:05:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Drop make build validation jobs
In preparation for removal of the `make`-based build system
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6fd9b0a1c6b076ef1977db1a2ce8b9505b9a3254" style="color: #1068bf; text-decoration: none;">6fd9b0a1</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-25T20:05:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Drop make build system
Here we at long last remove the `make`-based build system, it having
been replaced with the Shake-based Hadrian build system. Users are
encouraged to refer to the documentation in `hadrian/doc` and this [1]
blog post for details on using Hadrian.
Closes #17527.
[1] https://www.haskell.org/ghc/blog/20220805-make-to-hadrian.html
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dbb004b0661e5cd34918d8efa1f66ef6cd22ed0a" style="color: #1068bf; text-decoration: none;">dbb004b0</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-25T20:05:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove testsuite/tests/perf/haddock/.gitignore
As noted in #16802, this is no longer needed.
Closes #16802.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fe9d824d87d3caa28f16b06602d62ba59eb3b44e" style="color: #1068bf; text-decoration: none;">fe9d824d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-25T20:05:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Drop hc-build script
This has not worked for many, many years and relied on the now-removed
`make`-based build system.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/659502bc4f78ccba1b35d06eeaa934f2614f1706" style="color: #1068bf; text-decoration: none;">659502bc</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-25T20:05:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Drop mkdirhier
This is only used by nofib's dead `dist` target
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4a426924578c1febe8a5d34c7a265223ba8031df" style="color: #1068bf; text-decoration: none;">4a426924</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-25T20:05:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Drop mk/{build,install,config}.mk.in
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/46924b75c78c2fcb92cba91796bc22986c796ed3" style="color: #1068bf; text-decoration: none;">46924b75</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-25T20:05:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>compiler: Drop comment references to make
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d387f687930e4d44c1ef569b4ec8091cb8b92765" style="color: #1068bf; text-decoration: none;">d387f687</a></strong>
<div>
<span>by Harry Garrood</span>
<i>at 2022-08-25T20:06:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add inits1 and tails1 to Data.List.NonEmpty
See https://github.com/haskell/core-libraries-committee/issues/67
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8603c92113c49557f8632675a01f3b3874b819d1" style="color: #1068bf; text-decoration: none;">8603c921</a></strong>
<div>
<span>by Harry Garrood</span>
<i>at 2022-08-25T20:06:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add since annotations and changelog entries
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6b47aa1cc87426db4fe7d805af69894de05780ff" style="color: #1068bf; text-decoration: none;">6b47aa1c</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-08-25T20:06:46-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix redundant import
This fixes a build error on x86_64-linux-alpine3_12-validate.
See the function 'loadExternalPlugins' defined in this file.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4786acf758ef064d3b79593774d1672e294b0afb" style="color: #1068bf; text-decoration: none;">4786acf7</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-08-26T15:05:23-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Pmc: consider any 2 dicts of the same type equal
This patch massages the keys used in the `TmOracle` `CoreMap` to ensure
that dictionaries of coherent classes give the same key.
That is, whenever we have an expression we want to insert or lookup in
the `TmOracle` `CoreMap`, we first replace any dictionary
`$dict_abcd :: ct` with a value of the form `error @ct`.
This allows us to common-up view pattern functions with required
constraints whose arguments differed only in the uniques of the
dictionaries they were provided, thus fixing #21662.
This is a rather ad-hoc change to the keys used in the
`TmOracle` `CoreMap`. In the long run, we would probably want to use
a different representation for the keys instead of simply using
`CoreExpr` as-is. This more ambitious plan is outlined in #19272.
Fixes #21662
Updates unix submodule
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f5e0f086a43c4e830f3fec343917daf3cc24b73a" style="color: #1068bf; text-decoration: none;">f5e0f086</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-08-26T15:06:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove label style from printing context
Previously, the SDocContext used for code generation contained
information whether the labels should use Asm or C style.
However, at every individual call site, this is known statically.
This removes the parameter to 'PprCode' and replaces every 'pdoc'
used to print a label in code style with 'pprCLabel' or 'pprAsmLabel'.
The OutputableP instance is now used only for dumps.
The output of T15155 changes, it now uses the Asm style
(which is faithful to what actually happens).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1007829bfb18708dda77b4eb6106fce9cb05f908" style="color: #1068bf; text-decoration: none;">1007829b</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-08-26T15:06:40-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>boot: cleanup legacy args
Cleanup legacy boot script args, following removal of the legacy make
build system.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/95fe09da09b386008fd730abc5374f3521dd339b" style="color: #1068bf; text-decoration: none;">95fe09da</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-08-27T00:29:02-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve SpecConstr for evals
As #21763 showed, we were over-specialising in some cases, when
the function involved was doing a simple 'eval', but not taking
the value apart, or branching on it.
This MR fixes the problem. See Note [Do not specialise evals].
Nofib barely budges, except that spectral/cichelli allocates about
3% less.
Compiler bytes-allocated improves a bit
geo. mean -0.1%
minimum -0.5%
maximum +0.0%
The -0.5% is on T11303b, for what it's worth.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/565a8ec8fb29062827edc6999ac8dc72494ddd07" style="color: #1068bf; text-decoration: none;">565a8ec8</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-27T00:29:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Revert "Revert "Refactor SpecConstr to use treat bindings uniformly""
This reverts commit 851d8dd89a7955864b66a3da8b25f1dd88a503f8.
This commit was originally reverted due to an increase in space usage.
This was diagnosed as because the SCE increased in size and that was
being retained by another leak. See #22102
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/82ce1654567b24fbbd611ab20b5188291fd3f830" style="color: #1068bf; text-decoration: none;">82ce1654</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-27T00:29:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Avoid retaining bindings via ModGuts held on the stack
It's better to overwrite the bindings fields of the ModGuts before
starting an iteration as then all the old bindings can be collected as
soon as the simplifier has processed them. Otherwise we end up with the
old bindings being alive until right at the end of the simplifier pass
as the mg_binds field is only modified right at the end.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/64779dcd734a69ab38fba1e7542896c168d7bbce" style="color: #1068bf; text-decoration: none;">64779dcd</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-27T00:29:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Force imposs_deflt_cons in filterAlts
This fixes a pretty serious space leak as the forced thunk would retain
`Alt b` values which would then contain reference to a lot of old
bindings and other simplifier gunk.
The OtherCon unfolding was not forced on subsequent simplifier runs so
more and more old stuff would be retained until the end of
simplification.
Fixing this has a drastic effect on maximum residency for the mmark
package which goes from
```
45,005,401,056 bytes allocated in the heap
17,227,721,856 bytes copied during GC
818,281,720 bytes maximum residency (33 sample(s))
9,659,144 bytes maximum slop
2245 MiB total memory in use (0 MB lost due to fragmentation)
```
to
```
45,039,453,304 bytes allocated in the heap
13,128,181,400 bytes copied during GC
331,546,608 bytes maximum residency (40 sample(s))
7,471,120 bytes maximum slop
916 MiB total memory in use (0 MB lost due to fragmentation)
```
See #21993 for some more discussion.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a3b23a3318a556beba62a3637600692639575c44" style="color: #1068bf; text-decoration: none;">a3b23a33</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-27T00:29:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use Solo to avoid retaining the SCE but to avoid performing the substitution
The use of Solo here allows us to force the selection into the SCE to obtain
the Subst but without forcing the substitution to be applied. The resulting thunk
is placed into a lazy field which is rarely forced, so forcing it regresses
peformance.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/161a6f1fd62e797e978e7808a5f567fefa123f16" style="color: #1068bf; text-decoration: none;">161a6f1f</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-08-27T00:30:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix a nasty loop in Tidy
As the remarkably-simple #22112 showed, we were making a black hole
in the unfolding of a self-recursive binding. Boo!
It's a bit tricky. Documented in GHC.Iface.Tidy,
Note [tidyTopUnfolding: avoiding black holes]
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/68e6786f3d1bde5d044a649462cdf2b6034a2df8" style="color: #1068bf; text-decoration: none;">68e6786f</a></strong>
<div>
<span>by Giles Anderson</span>
<i>at 2022-08-29T00:01:35+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use TcRnDiagnostic in GHC.Tc.TyCl.Class (#20117)
The following `TcRnDiagnostic` messages have been introduced:
TcRnIllegalHsigDefaultMethods
TcRnBadGenericMethod
TcRnWarningMinimalDefIncomplete
TcRnDefaultMethodForPragmaLacksBinding
TcRnIgnoreSpecialisePragmaOnDefMethod
TcRnBadMethodErr
TcRnNoExplicitAssocTypeOrDefaultDeclaration
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cbe51ac5e0bbe2667b6c7204ae62a534a9bc7c95" style="color: #1068bf; text-decoration: none;">cbe51ac5</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-08-29T04:18:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix a bug in anyInRnEnvR
This bug was a subtle error in anyInRnEnvR, introduced by
commit d4d3fe6e02c0eb2117dbbc9df72ae394edf50f06
Author: Andreas Klebinger <klebinger.andreas@gmx.at>
Date: Sat Jul 9 01:19:52 2022 +0200
Rule matching: Don't compute the FVs if we don't look at them.
The net result was #22028, where a rewrite rule would wrongly
match on a lambda.
The fix to that function is easy.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0154bc80b3648af15ef431cf0cf99e3cbbd881f6" style="color: #1068bf; text-decoration: none;">0154bc80</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-08-30T06:05:41-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Various Hadrian bootstrapping fixes
- Don't always produce a distribution archive (#21629)
- Use correct executable names for ghc-pkg and hsc2hs on windows
(we were missing the .exe file extension)
- Fix a bug where we weren't using the right archive format on Windows
when unpacking the bootstrap sources.
Fixes #21629
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/451b1d90cf14e8fb3f12b1b65d8027717093556a" style="color: #1068bf; text-decoration: none;">451b1d90</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-30T06:06:16-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Attempt using normal submodule cloning strategy
We do not use any recursively cloned submodules, and this protects us
from flaky upstream remotes.
Fixes #22121
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9d5ad7c4bb1bd2b450fa13afcf95e3370c53232d" style="color: #1068bf; text-decoration: none;">9d5ad7c4</a></strong>
<div>
<span>by Pi Delport</span>
<i>at 2022-08-30T22:40:46+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix typo in Any docs: stray "--"
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3a00263248e6176e06f03b7390fade48a9adb373" style="color: #1068bf; text-decoration: none;">3a002632</a></strong>
<div>
<span>by Pi Delport</span>
<i>at 2022-08-30T22:40:46+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix typo in Any docs: syntatic -> syntactic
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f490b1333c17ed27b213d6af8c7275aa9b3de63" style="color: #1068bf; text-decoration: none;">7f490b13</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-08-31T03:53:54-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add a missing trimArityType
This buglet was exposed by #22114, a consequence of my earlier
refactoring of arity for join points.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e6fc820f0bfa75ffa1bdb417530158d1b090157c" style="color: #1068bf; text-decoration: none;">e6fc820f</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-31T13:16:01+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump binary submodule to 0.8.9.1
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4c1e7b22a25f427b489552275aaa222c71e6ef43" style="color: #1068bf; text-decoration: none;">4c1e7b22</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-31T13:16:01+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump stm submodule to 2.5.1.0
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/837472b4895232c9ef06949b0c2af4dbac96744c" style="color: #1068bf; text-decoration: none;">837472b4</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-31T13:16:01+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>users-guide: Document system-cxx-std-lib
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f7a9947a93d021e6e1f0a04adf787db4d66b1ae5" style="color: #1068bf; text-decoration: none;">f7a9947a</a></strong>
<div>
<span>by Douglas Wilson</span>
<i>at 2022-08-31T13:16:01+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update submodule containers to 0.6.6
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4ab1c2ca4b6d43a6f70430225b00a61ce9fe1c39" style="color: #1068bf; text-decoration: none;">4ab1c2ca</a></strong>
<div>
<span>by Douglas Wilson</span>
<i>at 2022-08-31T13:16:02+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update submodule process to 1.6.15.0
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1309ea1e20712c49977ce69d6e1f6081572185cb" style="color: #1068bf; text-decoration: none;">1309ea1e</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-31T13:16:02+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump directory submodule to 1.3.7.1
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7962a33a6b1fb941f76a4cb9a9ad1ec237e9cb33" style="color: #1068bf; text-decoration: none;">7962a33a</a></strong>
<div>
<span>by Douglas Wilson</span>
<i>at 2022-08-31T13:16:02+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump text submodule to 2.0.1
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fd8d80c351a4d4782b879f40ef6dda21894368b9" style="color: #1068bf; text-decoration: none;">fd8d80c3</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-31T13:26:52+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump deepseq submodule to 1.4.8.0
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a9baafacc0c7a5440139d475b854f40325e478cb" style="color: #1068bf; text-decoration: none;">a9baafac</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-31T13:26:52+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add dates to base, ghc-prim changelogs
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2cee323cb05bff6216f54d7a6cccc408f34366cc" style="color: #1068bf; text-decoration: none;">2cee323c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-31T13:26:52+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update autoconf scripts
Scripts taken from autoconf 02ba26b218d3d3db6c56e014655faf463cefa983
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e62705ff1976074ec2ce08eaa2af222a00889c65" style="color: #1068bf; text-decoration: none;">e62705ff</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-31T13:26:53+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump bytestring submodule to 0.11.3.1
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f7b4dcbd7d76101e7e6eee728bde2b5a5c873c02" style="color: #1068bf; text-decoration: none;">f7b4dcbd</a></strong>
<div>
<span>by Douglas Wilson</span>
<i>at 2022-08-31T13:26:53+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update submodule Cabal to tag Cabal-v3.8.1.0
closes #21931
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e8eaf8074f78df3f40ecfb9ef94c2077db9c87a1" style="color: #1068bf; text-decoration: none;">e8eaf807</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-31T18:27:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Refine in-tree compiler args for --test-compiler=stage1
Some of the logic to calculate in-tree arguments was not correct for the
stage1 compiler. Namely we were not correctly reporting whether we were
building static or dynamic executables and whether debug assertions were
enabled.
Fixes #22096
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6b2f7ffea51304091bfa4bd1d88a58ea373ee551" style="color: #1068bf; text-decoration: none;">6b2f7ffe</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-31T18:27:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make ghcDebugAssertions into a Stage predicate (Stage -> Bool)
We also care whether we have debug assertions enabled for a stage one
compiler, but the way which we turned on the assertions was quite
different from the stage2 compiler. This makes the logic for turning on
consistent across both and has the advantage of being able to correct
determine in in-tree args whether a flavour enables assertions or not.
Ticket #22096
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/15111af6adb1c85af5b17088134c9e71bee025e3" style="color: #1068bf; text-decoration: none;">15111af6</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-09-01T01:18:50-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add regression test for #21550
This was fixed by ca90ffa321a31842a32be1b5b6e26743cd677ec5
"Use local instances with least superclass depth"
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7d3a055d4df6842f8fbcfbc1ca96e2a45a47d351" style="color: #1068bf; text-decoration: none;">7d3a055d</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-09-01T01:19:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Minor cleanup
- Remove mkHeteroCoercionType, sdocImpredicativeTypes, isStateType (unused),
isCoVar_maybe (duplicated by getCoVar_maybe)
- Replace a few occurrences of voidPrimId with (# #).
void# is a deprecated synonym for the unboxed tuple.
- Use showSDoc in :show linker.
This makes it consistent with the other :show commands
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/31a8989a1d4aa5fe1e3ed0b2e789145bb64a8ba8" style="color: #1068bf; text-decoration: none;">31a8989a</a></strong>
<div>
<span>by Tommy Bidne</span>
<i>at 2022-09-01T12:01:20-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Change Ord defaults per CLC proposal
Approved by CLC in https://github.com/haskell/core-libraries-committee/issues/24#issuecomment-1233331267
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f527f01c8b4b61047fa87905750ee962f527e36" style="color: #1068bf; text-decoration: none;">7f527f01</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-09-01T12:01:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix bootstrap with ghc-9.0
It turns out Solo is a very recent addition to base, so for older GHC
versions we just defined it inline here the one place we use it in the
compiler.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d2be80fd9b222963e8dd09a30f78c106e00da7f9" style="color: #1068bf; text-decoration: none;">d2be80fd</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-09-05T23:12:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>DmdAnal: Don't panic in addCaseBndrDmd (#22039)
Rather conservatively return Top.
See Note [Untyped demand on case-alternative binders].
I also factored `addCaseBndrDmd` into two separate functions `scrutSubDmd` and
`fieldBndrDmds`.
Fixes #22039.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/25f68acedf822e9ea21d1659b1f897fcfc96e5d4" style="color: #1068bf; text-decoration: none;">25f68ace</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-09-05T23:12:50-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Ensure that ghc derivation is in scope
Previously the lint-ci job attempted to use cabal-install (specifically
`cabal update`) without a GHC in PATH. However, cabal-install-3.8
appears to want GHC, even for `cabal update`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f37b621fdeff6922c6ad9533a02ccc26c50f9b2e" style="color: #1068bf; text-decoration: none;">f37b621f</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-09-06T11:51:53+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update instances.rst, clarifying InstanceSigs
Fixes #22103
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d4f908f7dff34c650fd3cf26dbba1d5b66c13dbc" style="color: #1068bf; text-decoration: none;">d4f908f7</a></strong>
<div>
<span>by Jan Hrček</span>
<i>at 2022-09-06T15:36:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix :add docs in user guide
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/808bb7934e1e3007bf7115bdf75263bba937c85b" style="color: #1068bf; text-decoration: none;">808bb793</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-06T15:37:35-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: remove unused build_make/test_make in ci script
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d0a2efb2125ef410a7c7725b93987d2b7ea99463" style="color: #1068bf; text-decoration: none;">d0a2efb2</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-09-07T16:42:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>typo</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fac0098b3e07375030c4320c23c8a6c9200556af" style="color: #1068bf; text-decoration: none;">fac0098b</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-09-07T16:42:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>typos
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a581186f38a4feb850614b03f452191eaceee14d" style="color: #1068bf; text-decoration: none;">a581186f</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-09-07T16:42:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>whitespace
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/04a738cb23e82b32caf38b7965f5042e6af6ee88" style="color: #1068bf; text-decoration: none;">04a738cb</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-07T16:43:22-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CmmToAsm: remove unused ModLocation from NatM_State
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ee1cfaa990205dc96148ed20c2d6560b4808b0b7" style="color: #1068bf; text-decoration: none;">ee1cfaa9</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-09-07T16:43:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Minor SDoc cleanup
Change calls to renderWithContext with showSDocOneLine; it's more
efficient and explanatory.
Remove polyPatSig (unused)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7918265d53db963bfd3dd529b1063fb844549733" style="color: #1068bf; text-decoration: none;">7918265d</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-09-07T16:43:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove Outputable Char instance
Use 'text' instead of 'ppr'.
Using 'ppr' on the list "hello" rendered as "h,e,l,l,o".
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/77209ab32aee6f58504b303fdea2df69f5a71027" style="color: #1068bf; text-decoration: none;">77209ab3</a></strong>
<div>
<span>by Georgi Lyubenov</span>
<i>at 2022-09-08T17:14:36+03:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Export liftA2 from Prelude
Changes:
In order to be warning free and compatible, we hide Applicative(..)
from Prelude in a few places and instead import it directly from
Control.Applicative.
Please see the migration guide at
https://github.com/haskell/core-libraries-committee/blob/main/guides/export-lifta2-prelude.md
for more details.
This means that Applicative is now exported in its entirety from
Prelude.
Motivation:
This change is motivated by a few things:
* liftA2 is an often used function, even more so than (<*>) for some
people.
* When implementing Applicative, the compiler will prompt you for either
an implementation of (<*>) or of liftA2, but trying to use the latter
ends with an error, without further imports. This could be confusing
for newbies.
* For teaching, it is often times easier to introduce liftA2 first,
as it is a natural generalisation of fmap.
* This change seems to have been unanimously and enthusiastically
accepted by the CLC members, possibly indicating a lot of love for it.
* This change causes very limited breakage, see the linked issue below
for an investigation on this.
See https://github.com/haskell/core-libraries-committee/issues/50
for the surrounding discussion and more details.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/442a94e8ef886b51c5622102546e34875a3fcc37" style="color: #1068bf; text-decoration: none;">442a94e8</a></strong>
<div>
<span>by Georgi Lyubenov</span>
<i>at 2022-09-08T17:14:36+03:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add changelog entry for liftA2 export from Prelude
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fb968680c3b0d1cc2ae9f8433dc56f847f8b7d3f" style="color: #1068bf; text-decoration: none;">fb968680</a></strong>
<div>
<span>by Georgi Lyubenov</span>
<i>at 2022-09-08T17:14:36+03:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump submodule containers to one with liftA2 warnings fixed
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f54ff8183a38a92c0ae4e063bc8bd85a33fdc9ff" style="color: #1068bf; text-decoration: none;">f54ff818</a></strong>
<div>
<span>by Georgi Lyubenov</span>
<i>at 2022-09-08T17:14:36+03:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump submodule Cabal to one with liftA2 warnings fixed
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a4b34808720e93b434b4fcf18db114bc1f0599aa" style="color: #1068bf; text-decoration: none;">a4b34808</a></strong>
<div>
<span>by Georgi Lyubenov</span>
<i>at 2022-09-08T17:14:36+03:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Isolate some Applicative hidings to GHC.Prelude
By reexporting the entirety of Applicative from GHC.Prelude, we can save
ourselves some `hiding` and importing of `Applicative` in consumers of GHC.Prelude.
This also has the benefit of isolating this type of change to
GHC.Prelude, so that people in the future don't have to think about it.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9c4ea90c6b493eee6df1798c63a6031cc18ae6da" style="color: #1068bf; text-decoration: none;">9c4ea90c</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-08T17:49:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CmmToC: enable 64-bit CallishMachOp on 32-bit targets
Normally, the unregisterised builds avoid generating 64-bit
CallishMachOp in StgToCmm, so CmmToC doesn't support these. However,
there do exist cases where we'd like to invoke cmmToC for other cmm
inputs which may contain such CallishMachOps, and it's a rather low
effort to add support for these since they only require calling into
existing ghc-prim cbits.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/04062510806e2a3ccf0ecdb71c704a8e1c548c53" style="color: #1068bf; text-decoration: none;">04062510</a></strong>
<div>
<span>by Alexis King</span>
<i>at 2022-09-11T11:30:32+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add native delimited continuations to the RTS
This patch implements GHC proposal 313, "Delimited continuation
primops", by adding native support for delimited continuations to the
GHC RTS.
All things considered, the patch is relatively small. It almost
exclusively consists of changes to the RTS; the compiler itself is
essentially unaffected. The primops come with fairly extensive Haddock
documentation, and an overview of the implementation strategy is given
in the Notes in rts/Continuation.c.
This first stab at the implementation prioritizes simplicity over
performance. Most notably, every continuation is always stored as a
single, contiguous chunk of stack. If one of these chunks is
particularly large, it can result in poor performance, as the current
implementation does not attempt to cleverly squeeze a subset of the
stack frames into the existing stack: it must fit all at once. If this
proves to be a performance issue in practice, a cleverer strategy would
be a worthwhile target for future improvements.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ee471dfb8a4a4bb5131a5baa61d1d0d22c933d5f" style="color: #1068bf; text-decoration: none;">ee471dfb</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-12T07:07:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: fix missing dirty_MVAR argument in stg_writeIOPortzh
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a5f9c35f5831ef5108e87813a96eac62803852ab" style="color: #1068bf; text-decoration: none;">a5f9c35f</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-12T13:29:05-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: enable parallel compression for xz
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3a815f30bcba5672085e823aeef90863253b0b1a" style="color: #1068bf; text-decoration: none;">3a815f30</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2022-09-12T13:29:41-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Windows: Always define _UCRT when compiling C code
As seen in #22159, this is required to ensure correct behavior when MinGW-w64
headers are in the `C_INCLUDE_PATH`.
Fixes #22159.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/65a0bd69ac1fb59047cd4c8554a8fc756c7b3476" style="color: #1068bf; text-decoration: none;">65a0bd69</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-09-13T10:27:52-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add diagnostic codes
This MR adds diagnostic codes, assigning unique numeric codes to
error and warnings, e.g.
error: [GHC-53633]
Pattern match is redundant
This is achieved as follows:
- a type family GhcDiagnosticCode that gives the diagnostic code
for each diagnostic constructor,
- a type family ConRecursInto that specifies whether to recur into
an argument of the constructor to obtain a more fine-grained code
(e.g. different error codes for different 'deriving' errors),
- generics machinery to generate the value-level function assigning
each diagnostic its error code; see Note [Diagnostic codes using generics]
in GHC.Types.Error.Codes.
The upshot is that, to add a new diagnostic code, contributors only need
to modify the two type families mentioned above. All logic relating to
diagnostic codes is thus contained to the GHC.Types.Error.Codes module,
with no code duplication.
This MR also refactors error message datatypes a bit, ensuring we can
derive Generic for them, and cleans up the logic around constraint
solver reports by splitting up 'TcSolverReportInfo' into separate
datatypes (see #20772).
Fixes #21684
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/362cca13858faf7e1158273780ea900e7dad5827" style="color: #1068bf; text-decoration: none;">362cca13</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-09-13T10:27:53-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Diagnostic codes: acccept test changes
The testsuite output now contains diagnostic codes, so many tests need
to be updated at once.
We decided it was best to keep the diagnostic codes in the testsuite
output, so that contributors don't inadvertently make changes to the
diagnostic codes.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/08f6730cd04ae9cdba30c0e371522ddc9a25b716" style="color: #1068bf; text-decoration: none;">08f6730c</a></strong>
<div>
<span>by Adam Gundry</span>
<i>at 2022-09-13T10:28:29-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Allow imports to reference multiple fields with the same name (#21625)
If a module `M` exports two fields `f` (using DuplicateRecordFields), we can
still accept
import M (f)
import M hiding (f)
and treat `f` as referencing both of them. This was accepted in GHC 9.0, but gave
rise to an ambiguity error in GHC 9.2. See #21625.
This patch also documents this behaviour in the user's guide, and updates the
test for #16745 which is now treated differently.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c14370d765efb81ead9a80dc5450dc97e3167b6e" style="color: #1068bf; text-decoration: none;">c14370d7</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-13T10:29:07-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: remove unused appveyor config
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dc6af9ed87e619d754bfc385df931c81cba6d93a" style="color: #1068bf; text-decoration: none;">dc6af9ed</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-13T10:29:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>compiler: remove unused lazy state monad
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/646d15ad8f1119f339998ee8dd79ea96cfd1d165" style="color: #1068bf; text-decoration: none;">646d15ad</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-09-14T03:13:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix typos
This fixes various typos and spelling mistakes
in the compiler.
Fixes #21891
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7d7e71b03f4b2eb693f5ea69dadbccf491e7403f" style="color: #1068bf; text-decoration: none;">7d7e71b0</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-09-14T03:14:32-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Bump index state
This bumps the index state so a build plan can also be found when
booting with 9.4.
Fixes #22165
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/98b62871581d09fd7f910f011b8309a342af9886" style="color: #1068bf; text-decoration: none;">98b62871</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-09-14T17:17:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Use a stamp file to record when a package is built in a certain way
Before this patch which library ways we had built wasn't recorded
directly. So you would run into issues if you build the .conf file with
some library ways before switching the library ways which you wanted to
build.
Now there is one stamp file for each way, so in order to build a
specific way you can need that specific stamp file rather than going
indirectly via the .conf file.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b42cedbefb296437014d0768348b740b960943c0" style="color: #1068bf; text-decoration: none;">b42cedbe</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-09-14T17:17:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Inplace/Final package databases
There are now two different package databases per stage. An inplace
package database contains .conf files which point directly into the
build directories. The final package database contains .conf files which
point into the installed locations. The inplace .conf files are created
before any building happens and have fake ABI hash values. The final
.conf files are created after a package finished building and contains
the proper ABI has.
The motivation for this is to make the dependency structure more
fine-grained when building modules. Now a module depends just depends
directly on M.o from package p rather than the .conf file depend on the
.conf file for package p. So when all of a modules direct dependencies
have finished building we can start building it rather than waiting for
the whole package to finish.
The secondary motivation is that the multi-repl doesn't need to build
everything before starting the multi-repl session. We can just configure
the inplace package-db and use that in order to start the repl.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6515c32b6616645918e7ea95db59b0467df12bfb" style="color: #1068bf; text-decoration: none;">6515c32b</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-09-14T17:17:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Add some more packages to multi-cradle
The main improvement here is to pass `-this-unit-id` for executables so
that they can be added to the multi-cradle if desired as well as normal
library packages.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e470e91f7dca7c85cc77508b1140a23722702c06" style="color: #1068bf; text-decoration: none;">e470e91f</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-09-14T17:17:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Need builders needed by Cabal Configure in parallel
Because of the use of withStaged (which needs the necessary builder)
when configuring a package, the builds of stage1:exe:ghc-bin and
stage1:exe:ghc-pkg where being linearised when building a specific
target like `binary-dist-dir`.
Thankfully the fix is quite local, to supply all the `withStaged`
arguments together so the needs can be batched together and hence
performed in parallel.
Fixes #22093
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c4438347db08f113454d716df33bd81773f98411" style="color: #1068bf; text-decoration: none;">c4438347</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-09-14T17:17:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove stage1:exe:ghc-bin pre-build from CI script
CI builds stage1:exe:ghc-bin before the binary-dist target which
introduces some quite bad linearisation (see #22093) because we don't
build stage1 compiler in parallel with anything. Then when the
binary-dist target is started we have to build stage1:exe:ghc-pkg before
doing anything.
Fixes #22094
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/71d8db86d159e3f3f4d1d23c124306cac6448a96" style="color: #1068bf; text-decoration: none;">71d8db86</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-09-14T17:17:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Add extra implicit dependencies from DeriveLift
ghc -M should know that modules which use DeriveLift (or
TemplateHaskellQuotes) need TH.Lib.Internal but until it does, we have
to add these extra edges manually or the modules will be compiled before
TH.Lib.Internal is compiled which leads to a desugarer error.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/43e574f04fc2b612356a9805abe60b708b0b32c9" style="color: #1068bf; text-decoration: none;">43e574f0</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2022-09-14T17:17:43-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Repair c++ probing on OpenBSD
Failure without this change:
```
checking C++ standard library flavour... libc++
checking for linkage against 'c++ c++abi'... failed
checking for linkage against 'c++ cxxrt'... failed
configure: error: Failed to find C++ standard library
```
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/534b39ee5c6d0c4f9dc279adcf5a11423279efb8" style="color: #1068bf; text-decoration: none;">534b39ee</a></strong>
<div>
<span>by Douglas Wilson</span>
<i>at 2022-09-14T17:18:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>libraries: template-haskell: vendor filepath differently
Vendoring with ../ in hs-source-dirs prevents upload to hackage.
(cherry picked from commit 1446be7586ba70f9136496f9b67f792955447842)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bdd61cd63dff07a78b1364988b5a140806f79e38" style="color: #1068bf; text-decoration: none;">bdd61cd6</a></strong>
<div>
<span>by M Farkas-Dyck</span>
<i>at 2022-09-14T22:39:34-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Unbreak Hadrian with Cabal 3.8.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/df04d6ec6a543d8bf1b953cf27c26e63ec6aab25" style="color: #1068bf; text-decoration: none;">df04d6ec</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-09-14T22:40:09-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix typos
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d6ea8356b721ea4c3b871a796c1b2b13f94fd471" style="color: #1068bf; text-decoration: none;">d6ea8356</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-09-15T10:12:41+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Tag inference: Fix #21954 by retaining tagsigs of vars in function position.
For an expression like:
case x of y
Con z -> z
If we also retain the tag sig for z we can generate code to immediately return
it rather than calling out to stg_ap_0_fast.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7cce70073f5017cf5514f92a900c76e47a4292a5" style="color: #1068bf; text-decoration: none;">7cce7007</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-09-15T10:12:42+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Stg.InferTags.Rewrite - Avoid some thunks.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/88c4cbdb7c2f241368c72e05ae295e19ba7c254b" style="color: #1068bf; text-decoration: none;">88c4cbdb</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-16T13:57:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: enable -fprof-late only for profiling ways
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d7235831724dffdc203b8d87bb4d376546eeb883" style="color: #1068bf; text-decoration: none;">d7235831</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-16T13:57:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: add late_ccs flavour transformer
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ce203753a88406cba95278506bba1b4e6ef169c6" style="color: #1068bf; text-decoration: none;">ce203753</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-16T13:58:34-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>configure: remove unused program checks
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9b4c1056580df029865346ffcf1aa2fca85cdddc" style="color: #1068bf; text-decoration: none;">9b4c1056</a></strong>
<div>
<span>by Pierre Le Marre</span>
<i>at 2022-09-16T13:59:16-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update to Unicode 15.0
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c6e9b89a8ad9bd155748fe177a23c8f4919d308f" style="color: #1068bf; text-decoration: none;">c6e9b89a</a></strong>
<div>
<span>by Bodigrim</span>
<i>at 2022-09-16T13:59:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Avoid partial head and tail in ghc-heap; replace with total pattern-matching
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/616afde3e2c6b733c8a44205a140ec8586853d3c" style="color: #1068bf; text-decoration: none;">616afde3</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-16T14:00:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: relax Cabal upper bound to allow building with Cabal-3.8
A follow up of !8910.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/df35d99465d1037b31cbd05aa3380fce6031af73" style="color: #1068bf; text-decoration: none;">df35d994</a></strong>
<div>
<span>by Alexis King</span>
<i>at 2022-09-16T14:01:11-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add links to the continuations haddocks in the docs for each primop
fixes #22176
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/383f75494a936bbc2f794a788141b103cd482913" style="color: #1068bf; text-decoration: none;">383f7549</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-09-16T21:42:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>-Wunused-pattern-binds: Recurse into patterns to check whether there's a splice
See the examples in #22057 which show we have to traverse deeply into a
pattern to determine whether it contains a splice or not. The original
implementation pointed this out but deemed this very shallow traversal
"too expensive".
Fixes #22057
I also fixed an oversight in !7821 which meant we lost a warning which
was present in 9.2.2.
Fixes #22067
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5031bf49793f3470a9fd9036829a08e556584d8a" style="color: #1068bf; text-decoration: none;">5031bf49</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-09-16T21:42:49-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Hadrian: Don't try to build terminfo on Windows
Commit b42cedbe introduced a dependency on terminfo on Windows,
but that package isn't available on Windows.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c9afe2216ccabd36e3083ec3b508310fcdb5eae3" style="color: #1068bf; text-decoration: none;">c9afe221</a></strong>
<div>
<span>by M Farkas-Dyck</span>
<i>at 2022-09-17T06:44:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Clean up some. In particular:
• Delete some dead code, largely under `GHC.Utils`.
• Clean up a few definitions in `GHC.Utils.(Misc, Monad)`.
• Clean up `GHC.Types.SrcLoc`.
• Derive stock `Functor, Foldable, Traversable` for more types.
• Derive more instances for newtypes.
Bump haddock submodule.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/85431ac363e77dd0f93d46ff1ed450b4833c2a40" style="color: #1068bf; text-decoration: none;">85431ac3</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-17T06:45:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>driver: pass original Cmm filename in ModLocation
When compiling Cmm, the ml_hs_file field is used to indicate Cmm
filename when later generating DWARF information. We should pass the
original filename here, otherwise for preprocessed Cmm files, the
filename will be a temporary filename which is confusing.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/63aa006939a8b5284b0f6f6a1c26d52aa3ae47da" style="color: #1068bf; text-decoration: none;">63aa0069</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-17T06:46:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: remove legacy logging cabal flag
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bd0f418422a3ace8d05c8ce93850190e57321465" style="color: #1068bf; text-decoration: none;">bd0f4184</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-17T06:46:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: make threaded ways optional
For certain targets (e.g. wasm32-wasi), the threaded rts is known not to
work. This patch adds a "threaded" cabal flag to rts to make threaded
rts ways optional. Hadrian enables this flag iff the flavour rtsWays
contains threaded ways.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8a666ad2a89a8ad2aa24a6406b88f516afaec671" style="color: #1068bf; text-decoration: none;">8a666ad2</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2022-09-18T08:00:44-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>DeriveFunctor: Check for last type variables using dataConUnivTyVars
Previously, derived instances of `Functor` (as well as the related classes
`Foldable`, `Traversable`, and `Generic1`) would determine which constraints to
infer by checking for fields that contain the last type variable. The problem
was that this last type variable was taken from `tyConTyVars`. For GADTs, the
type variables in each data constructor are _not_ the same type variables as
in `tyConTyVars`, leading to #22167.
This fixes the issue by instead checking for the last type variable using
`dataConUnivTyVars`. (This is very similar in spirit to the fix for #21185,
which also replaced an errant use of `tyConTyVars` with type variables from
each data constructor.)
Fixes #22167.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/780371678fae6cc4ab08a029f5cc35c73de2dc4b" style="color: #1068bf; text-decoration: none;">78037167</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2022-09-18T08:01:20-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Lexer: pass updated buffer to actions (#22201)
In the lexer, predicates have the following type:
{ ... } :: user -- predicate state
-> AlexInput -- input stream before the token
-> Int -- length of the token
-> AlexInput -- input stream after the token
-> Bool -- True <=> accept the token
This is documented in the Alex manual.
There is access to the input stream both before and after the token.
But when the time comes to construct the token, GHC passes only the
initial string buffer to the lexer action. This patch fixes it:
- type Action = PsSpan -> StringBuffer -> Int -> P (PsLocated Token)
+ type Action = PsSpan -> StringBuffer -> Int -> StringBuffer -> P (PsLocated Token)
Now lexer actions have access to the string buffer both before and after
the token, just like the predicates. It's just a matter of passing an
additional function parameter throughout the lexer.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7574659452a864e762fa812cb38cf15f70d85617" style="color: #1068bf; text-decoration: none;">75746594</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2022-09-18T08:01:20-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Lexer: define varsym without predicates (#22201)
Before this patch, the varsym lexing rules were defined as follows:
<0> {
@varsym / { precededByClosingToken `alexAndPred` followedByOpeningToken } { varsym_tight_infix }
@varsym / { followedByOpeningToken } { varsym_prefix }
@varsym / { precededByClosingToken } { varsym_suffix }
@varsym { varsym_loose_infix }
}
Unfortunately, this meant that the predicates 'precededByClosingToken' and
'followedByOpeningToken' were recomputed several times before we could figure
out the whitespace context.
With this patch, we check for whitespace context directly in the lexer
action:
<0> {
@varsym { with_op_ws varsym }
}
The checking for opening/closing tokens happens in 'with_op_ws' now,
which is part of the lexer action rather than the lexer predicate.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c1f81b38625a5fea7fb8160a3a62ae6be078a7b1" style="color: #1068bf; text-decoration: none;">c1f81b38</a></strong>
<div>
<span>by M Farkas-Dyck</span>
<i>at 2022-09-19T09:07:05-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Scrub partiality about `NewOrData`.
Rather than a list of constructors and a `NewOrData` flag, we define `data DataDefnCons a = NewTypeCon a | DataTypeCons [a]`, which enforces a newtype to have exactly one constructor.
Closes #22070.
Bump haddock submodule.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1e1ed8c5224a2a2d8ccf502da08a24ce71fd5ac6" style="color: #1068bf; text-decoration: none;">1e1ed8c5</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-19T09:07:43-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CmmToC: emit __builtin_unreachable() after noreturn ccalls
Emit a __builtin_unreachable() call after a foreign call marked as
CmmNeverReturns. This is crucial to generate correctly typed code for
wasm; as for other archs, this is also beneficial for the C compiler
optimizations.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/19f45a25f4b14fff081d75f506e7992c81371fc5" style="color: #1068bf; text-decoration: none;">19f45a25</a></strong>
<div>
<span>by Jan Hrček</span>
<i>at 2022-09-20T03:49:29-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Document :unadd GHCi command in user guide
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/545ff490144ed3ddd596d2a0c01b0a16b5528f63" style="color: #1068bf; text-decoration: none;">545ff490</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-09-20T03:50:06-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Hadrian: merge archives even in stage 0
We now always merge .a archives when ar supports -L.
This change is necessary in order to bootstrap GHC using GHC 9.4
on Windows, as nested archives aren't supported.
Not doing so triggered bug #21990 when trying to use the Win32
package, with errors such as:
Not a x86_64 PE+ file.
Unknown COFF 4 type in getHeaderInfo.
ld.lld: error: undefined symbol: Win32zm2zi12zi0zi0_SystemziWin32ziConsoleziCtrlHandler_withConsoleCtrlHandler1_info
We have to be careful about which ar is meant: in stage 0, the check
should be done on the system ar (system-ar in system.config).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/59fe128c37b2befb1ece4bf3f8f5c9082bd213eb" style="color: #1068bf; text-decoration: none;">59fe128c</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2022-09-20T03:50:42-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix -Woperator-whitespace for consym (part of #19372)
Due to an oversight, the initial specification and implementation of
-Woperator-whitespace focused on varsym exclusively and completely
ignored consym.
This meant that expressions such as "x+ y" would produce a warning,
while "x:+ y" would not.
The specification was corrected in ghc-proposals pull request #404,
and this patch updates the implementation accordingly.
Regression test included.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c4c2cca012c139259ab40e5b2e5f43aafc8f49c0" style="color: #1068bf; text-decoration: none;">c4c2cca0</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-09-20T13:11:49-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add `Eq` and `Ord` instances for `Generically1`
These are needed so the subsequent commit overhauling the `*1` classes
type-checks.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7beb356e944bf3415394fd6aeb7841aca5759020" style="color: #1068bf; text-decoration: none;">7beb356e</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-09-20T13:11:50-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Relax instances for Functor combinators; put superclass on Class1 and Class2 to make non-breaking
This change is approved by the Core Libraries commitee in
https://github.com/haskell/core-libraries-committee/issues/10
The first change makes the `Eq`, `Ord`, `Show`, and `Read` instances for
`Sum`, `Product`, and `Compose` match those for `:+:`, `:*:`, and `:.:`.
These have the proper flexible contexts that are exactly what the
instance needs:
For example, instead of
```haskell
instance (Eq1 f, Eq1 g, Eq a) => Eq (Compose f g a) where
(==) = eq1
```
we do
```haskell
deriving instance Eq (f (g a)) => Eq (Compose f g a)
```
But, that change alone is rather breaking, because until now `Eq (f a)`
and `Eq1 f` (and respectively the other classes and their `*1`
equivalents too) are *incomparable* constraints. This has always been an
annoyance of working with the `*1` classes, and now it would rear it's
head one last time as an pesky migration.
Instead, we give the `*1` classes superclasses, like so:
```haskell
(forall a. Eq a => Eq (f a)) => Eq1 f
```
along with some laws that canonicity is preserved, like:
```haskell
liftEq (==) = (==)
```
and likewise for `*2` classes:
```haskell
(forall a. Eq a => Eq1 (f a)) => Eq2 f
```
and laws:
```haskell
liftEq2 (==) = liftEq1
```
The `*1` classes also have default methods using the `*2` classes where
possible.
What this means, as explained in the docs, is that `*1` classes really
are generations of the regular classes, indicating that the methods can
be split into a canonical lifting combined with a canonical inner, with
the super class "witnessing" the laws[1] in a fashion.
Circling back to the pragmatics of migrating, note that the superclass
means evidence for the old `Sum`, `Product`, and `Compose` instances is
(more than) sufficient, so breakage is less likely --- as long no
instances are "missing", existing polymorphic code will continue to
work.
Breakage can occur when a datatype implements the `*1` class but not the
corresponding regular class, but this is almost certainly an oversight.
For example, containers made that mistake for `Tree` and `Ord`, which I
fixed in https://github.com/haskell/containers/pull/761, but fixing the
issue by adding `Ord1` was extremely *un*controversial.
`Generically1` was also missing `Eq`, `Ord`, `Read,` and `Show`
instances. It is unlikely this would have been caught without
implementing this change.
-----
[1]: In fact, someday, when the laws are part of the language and not
only documentation, we might be able to drop the superclass field of the
dictionary by using the laws to recover the superclass in an
instance-agnostic manner, e.g. with a *non*-overloaded function with
type:
```haskell
DictEq1 f -> DictEq a -> DictEq (f a)
```
But I don't wish to get into optomizations now, just demonstrate the
close relationship between the law and the superclass.
Bump haddock submodule because of test output changing.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6a8c6b5ede0345bf0bb1b34d93fe7dc759b99bfd" style="color: #1068bf; text-decoration: none;">6a8c6b5e</a></strong>
<div>
<span>by Tom Ellis</span>
<i>at 2022-09-20T13:12:27-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add notes to ghc-prim Haddocks that users should not import it
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ee9d0f5c5680ae033d701dfbd220c7938c7a2d51" style="color: #1068bf; text-decoration: none;">ee9d0f5c</a></strong>
<div>
<span>by matoro</span>
<i>at 2022-09-20T13:13:06-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>docs: clarify that LLVM codegen is not available in unregisterised mode
The current docs are misleading and suggest that it is possible to use
LLVM codegen from an unregisterised build. This is not the case;
attempting to pass `-fllvm` to an unregisterised build warns:
```
when making flags consistent: warning:
Target platform uses unregisterised ABI, so compiling via C
```
and uses the C codegen anyway.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/854224ed32422f7a315a2480c129691ad40ca504" style="color: #1068bf; text-decoration: none;">854224ed</a></strong>
<div>
<span>by Nicolas Trangez</span>
<i>at 2022-09-20T20:14:29-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: remove copy-paste error from `cabal.rts.in`
This was, likely accidentally, introduced in 4bf542bf1c.
See: 4bf542bf1cdf2fa468457fc0af21333478293476
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c8ae3add11969b5128f34d02a5582c1f007cce5c" style="color: #1068bf; text-decoration: none;">c8ae3add</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-09-20T20:15:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Add extra_dependencies edges for all different ways
The hack to add extra dependencies needed by DeriveLift extension missed
the cases for profiles and dynamic ways. For the profiled way this leads
to errors like:
```
GHC error in desugarer lookup in Data.IntSet.Internal:
Failed to load interface for ‘Language.Haskell.TH.Lib.Internal’
Perhaps you haven't installed the profiling libraries for package ‘template-haskell’?
Use -v (or `:set -v` in ghci) to see a list of the files searched for.
ghc: panic! (the 'impossible' happened)
GHC version 9.5.20220916:
initDs
```
Therefore the fix is to add these extra edges in.
Fixes #22197
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a971657d5c4e919a8d446386374e5ed491e9f6b9" style="color: #1068bf; text-decoration: none;">a971657d</a></strong>
<div>
<span>by Mon Aaraj</span>
<i>at 2022-09-21T06:41:24+03:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>users-guide: fix incorrect ghcappdata folder for unix and windows
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/06ccad0de07026ea8128a9951f608bcc67ef23d8" style="color: #1068bf; text-decoration: none;">06ccad0d</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-09-21T08:28:49-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Don't use isUnliftedType in isTagged
The function GHC.Stg.InferTags.Rewrite.isTagged can be given
the Id of a join point, which might be representation polymorphic.
This would cause the call to isUnliftedType to crash. It's better
to use typeLevity_maybe instead.
Fixes #22212
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c0ba775dda6ddec1251363d1b73f4f3e35931dd9" style="color: #1068bf; text-decoration: none;">c0ba775d</a></strong>
<div>
<span>by Teo Camarasu</span>
<i>at 2022-09-21T14:30:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add fragmentation statistic to GHC.Stats
Implements #21537
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2463df2fe21b5b37ecada3df8c6726c534d24590" style="color: #1068bf; text-decoration: none;">2463df2f</a></strong>
<div>
<span>by Torsten Schmits</span>
<i>at 2022-09-21T14:31:24-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Rename Solo[constructor] to MkSolo
Part of proposal 475 (https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0475-tuple-syntax.rst)
Moves all tuples to GHC.Tuple.Prim
Updates ghc-prim version (and bumps bounds in dependents)
updates haddock submodule
updates deepseq submodule
updates text submodule
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9034fadaf641c3821db6e066faaf1a62ed236c13" style="color: #1068bf; text-decoration: none;">9034fada</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-09-22T09:25:29-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update filepath to filepath-1.4.100.0
Updates submodule
* Always rely on vendored filepath
* filepath must be built as stage0 dependency because it uses
template-haskell.
Towards #22098
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/615e22789a04e74d7e02239b4580b95b077c3ae0" style="color: #1068bf; text-decoration: none;">615e2278</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-09-22T09:26:05-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Minor refactor around Outputable
* Replace 'text . show' and 'ppr' with 'int'.
* Remove Outputable.hs-boot, no longer needed
* Use pprWithCommas
* Factor out instructions in AArch64 codegen
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/aeafdba5503b8d26a62dc7bc7078caef170d4154" style="color: #1068bf; text-decoration: none;">aeafdba5</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-09-27T15:14:54+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Demand: Clear distinction between Call SubDmd and eval Dmd (#21717)
In #21717 we saw a reportedly unsound strictness signature due to an unsound
definition of plusSubDmd on Calls. This patch contains a description and the fix
to the unsoundness as outlined in `Note [Call SubDemand vs. evaluation Demand]`.
This fix means we also get rid of the special handling of `-fpedantic-bottoms`
in eta-reduction. Thanks to less strict and actually sound strictness results,
we will no longer eta-reduce the problematic cases in the first place, even
without `-fpedantic-bottoms`.
So fixing the unsoundness also makes our eta-reduction code simpler with less
hacks to explain. But there is another, more unfortunate side-effect:
We *unfix* #21085, but fortunately we have a new fix ready:
See `Note [mkCall and plusSubDmd]`.
There's another change:
I decided to make `Note [SubDemand denotes at least one evaluation]` a lot
simpler by using `plusSubDmd` (instead of `lubPlusSubDmd`) even if both argument
demands are lazy. That leads to less precise results, but in turn rids ourselves
from the need for 4 different `OpMode`s and the complication of
`Note [Manual specialisation of lub*Dmd/plus*Dmd]`. The result is simpler code
that is in line with the paper draft on Demand Analysis.
I left the abandoned idea in `Note [Unrealised opportunity in plusDmd]` for
posterity. The fallout in terms of regressions is negligible, as the testsuite
and NoFib shows.
```
Program Allocs Instrs
--------------------------------------------------------------------------------
hidden +0.2% -0.2%
linear -0.0% -0.7%
--------------------------------------------------------------------------------
Min -0.0% -0.7%
Max +0.2% +0.0%
Geometric Mean +0.0% -0.0%
```
Fixes #21717.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9b1595c87f0c2406bb340c5e27a4a45dfcde0e2c" style="color: #1068bf; text-decoration: none;">9b1595c8</a></strong>
<div>
<span>by Ross Paterson</span>
<i>at 2022-09-27T14:12:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>implement proposal 106 (Define Kinds Without Promotion) (fixes #6024)
includes corresponding changes to haddock submodule
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c2d73cb47562a86da76dae217d15f0dbd2b05b0e" style="color: #1068bf; text-decoration: none;">c2d73cb4</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-09-28T15:07:30-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Apply some tricks to speed up core lint.
Below are the noteworthy changes and if given their impact on compiler
allocations for a type heavy module:
* Use the oneShot trick on LintM
* Use a unboxed tuple for the result of LintM: ~6% reduction
* Avoid a thunk for the result of typeKind in lintType: ~5% reduction
* lint_app: Don't allocate the error msg in the hot code path: ~4%
reduction
* lint_app: Eagerly force the in scope set: ~4%
* nonDetCmpType: Try to short cut using reallyUnsafePtrEquality#: ~2%
* lintM: Use a unboxed maybe for the `a` result: ~12%
* lint_app: make go_app tail recursive to avoid allocating the go function
as heap closure: ~7%
* expandSynTyCon_maybe: Use a specialized data type
For a less type heavy module like nofib/spectral/simple compiled with
-O -dcore-lint allocations went down by ~24% and compile time by ~9%.
-------------------------
Metric Decrease:
T1969
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b74b6191d7c442dffdfc9a9e2a6d476d7b3a28f2" style="color: #1068bf; text-decoration: none;">b74b6191</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-09-28T15:08:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>matchLocalInst: do domination analysis
When multiple Given quantified constraints match a Wanted, and there is
a quantified constraint that dominates all others, we now pick it
to solve the Wanted.
See Note [Use only the best matching quantified constraint].
For example:
[G] d1: forall a b. ( Eq a, Num b, C a b ) => D a b
[G] d2: forall a . C a Int => D a Int
[W] {w}: D a Int
When solving the Wanted, we find that both Givens match, but we pick
the second, because it has a weaker precondition, C a Int, compared
to (Eq a, Num Int, C a Int). We thus say that d2 dominates d1;
see Note [When does a quantified instance dominate another?].
This domination test is done purely in terms of superclass expansion,
in the function GHC.Tc.Solver.Interact.impliedBySCs. We don't attempt
to do a full round of constraint solving; this simple check suffices
for now.
Fixes #22216 and #22223
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2a53ac1877bbd29de432c0aca442904e9da96c4e" style="color: #1068bf; text-decoration: none;">2a53ac18</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-09-28T17:49:09-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve aggressive specialisation
This patch fixes #21286, by not unboxing dictionaries in
worker/wrapper (ever). The main payload is tiny:
* In `GHC.Core.Opt.DmdAnal.finaliseArgBoxities`, do not unbox
dictionaries in `get_dmd`. See Note [Do not unbox class dictionaries]
in that module
* I also found that imported wrappers were being fruitlessly
specialised, so I fixed that too, in canSpecImport.
See Note [Specialising imported functions] point (2).
In doing due diligence in the testsuite I fixed a number of
other things:
* Improve Note [Specialising unfoldings] in GHC.Core.Unfold.Make,
and Note [Inline specialisations] in GHC.Core.Opt.Specialise,
and remove duplication between the two. The new Note describes
how we specialise functions with an INLINABLE pragma.
And simplify the defn of `spec_unf` in `GHC.Core.Opt.Specialise.specCalls`.
* Improve Note [Worker/wrapper for INLINABLE functions] in
GHC.Core.Opt.WorkWrap.
And (critially) make an actual change which is to propagate the
user-written pragma from the original function to the wrapper; see
`mkStrWrapperInlinePrag`.
* Write new Note [Specialising imported functions] in
GHC.Core.Opt.Specialise
All this has a big effect on some compile times. This is
compiler/perf, showing only changes over 1%:
Metrics: compile_time/bytes allocated
-------------------------------------
LargeRecord(normal) -50.2% GOOD
ManyConstructors(normal) +1.0%
MultiLayerModulesTH_OneShot(normal) +2.6%
PmSeriesG(normal) -1.1%
T10547(normal) -1.2%
T11195(normal) -1.2%
T11276(normal) -1.0%
T11303b(normal) -1.6%
T11545(normal) -1.4%
T11822(normal) -1.3%
T12150(optasm) -1.0%
T12234(optasm) -1.2%
T13056(optasm) -9.3% GOOD
T13253(normal) -3.8% GOOD
T15164(normal) -3.6% GOOD
T16190(normal) -2.1%
T16577(normal) -2.8% GOOD
T16875(normal) -1.6%
T17836(normal) +2.2%
T17977b(normal) -1.0%
T18223(normal) -33.3% GOOD
T18282(normal) -3.4% GOOD
T18304(normal) -1.4%
T18698a(normal) -1.4% GOOD
T18698b(normal) -1.3% GOOD
T19695(normal) -2.5% GOOD
T5837(normal) -2.3%
T9630(normal) -33.0% GOOD
WWRec(normal) -9.7% GOOD
hard_hole_fits(normal) -2.1% GOOD
hie002(normal) +1.6%
geo. mean -2.2%
minimum -50.2%
maximum +2.6%
I diligently investigated some of the big drops.
* Caused by not doing w/w for dictionaries:
T13056, T15164, WWRec, T18223
* Caused by not fruitlessly specialising wrappers
LargeRecord, T9630
For runtimes, here is perf/should+_run:
Metrics: runtime/bytes allocated
--------------------------------
T12990(normal) -3.8%
T5205(normal) -1.3%
T9203(normal) -10.7% GOOD
haddock.Cabal(normal) +0.1%
haddock.base(normal) -1.1%
haddock.compiler(normal) -0.3%
lazy-bs-alloc(normal) -0.2%
------------------------------------------
geo. mean -0.3%
minimum -10.7%
maximum +0.1%
I did not investigate exactly what happens in T9203.
Nofib is a wash:
+-------------------------------++--+-----------+-----------+
| || | tsv (rel) | std. err. |
+===============================++==+===========+===========+
| real/anna || | -0.13% | 0.0% |
| real/fem || | +0.13% | 0.0% |
| real/fulsom || | -0.16% | 0.0% |
| real/lift || | -1.55% | 0.0% |
| real/reptile || | -0.11% | 0.0% |
| real/smallpt || | +0.51% | 0.0% |
| spectral/constraints || | +0.20% | 0.0% |
| spectral/dom-lt || | +1.80% | 0.0% |
| spectral/expert || | +0.33% | 0.0% |
+===============================++==+===========+===========+
| geom mean || | | |
+-------------------------------++--+-----------+-----------+
I spent quite some time investigating dom-lt, but it's pretty
complicated. See my note on !7847. Conclusion: it's just a delicate
inlining interaction, and we have plenty of those.
Metric Decrease:
LargeRecord
T13056
T13253
T15164
T16577
T18223
T18282
T18698a
T18698b
T19695
T9630
WWRec
hard_hole_fits
T9203
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/addeefc054b64286dfc231d394885bfdecfd261d" style="color: #1068bf; text-decoration: none;">addeefc0</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-09-28T17:49:09-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Refactor UnfoldingSource and IfaceUnfolding
I finally got tired of the way that IfaceUnfolding reflected
a previous structure of unfoldings, not the current one. This
MR refactors UnfoldingSource and IfaceUnfolding to be simpler
and more consistent.
It's largely just a refactor, but in UnfoldingSource (which moves
to GHC.Types.Basic, since it is now used in IfaceSyn too), I
distinguish between /user-specified/ and /system-generated/ stable
unfoldings.
data UnfoldingSource
= VanillaSrc
| StableUserSrc -- From a user-specified pragma
| StableSystemSrc -- From a system-generated unfolding
| CompulsorySrc
This has a minor effect in CSE (see the use of isisStableUserUnfolding
in GHC.Core.Opt.CSE), which I tripped over when working on
specialisation, but it seems like a Good Thing to know anyway.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7be6f9a459b2fb0cdf7d1d26a373f7d4f89f7499" style="color: #1068bf; text-decoration: none;">7be6f9a4</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-09-28T17:49:09-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>INLINE/INLINEABLE pragmas in Foreign.Marshal.Array
Foreign.Marshal.Array contains many small functions, all of which are
overloaded, and which are critical for performance. Yet none of them
had pragmas, so it was a fluke whether or not they got inlined.
This patch makes them all either INLINE (small ones) or
INLINEABLE and hence specialisable (larger ones).
See Note [Specialising array operations] in that module.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b0c89dfaf9f8aeda9dd69a9583fd29150099aa27" style="color: #1068bf; text-decoration: none;">b0c89dfa</a></strong>
<div>
<span>by Jade Lovelace</span>
<i>at 2022-09-28T17:49:49-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Export OnOff from GHC.Driver.Session
I was working on fixing an issue where HLS was trying to pass its
DynFlags to HLint, but didn't pass any of the disabled language
extensions, which HLint would then assume are on because of their
default values.
Currently it's not possible to get any of the "No" flags because the
`DynFlags.extensions` field can't really be used since it is [OnOff
Extension] and OnOff is not exported.
So let's export it.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2f050687e75ffe6fbf140cacd15fd916d2997499" style="color: #1068bf; text-decoration: none;">2f050687</a></strong>
<div>
<span>by Bodigrim</span>
<i>at 2022-09-28T17:50:28-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Avoid Data.List.group; prefer Data.List.NonEmpty.group
This allows to avoid further partiality, e. g., map head . group is
replaced by map NE.head . NE.group, and there are less panic calls.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bc0020fa0871aff23d26b0116c1d4e43b8a3e9a9" style="color: #1068bf; text-decoration: none;">bc0020fa</a></strong>
<div>
<span>by M Farkas-Dyck</span>
<i>at 2022-09-28T22:51:59-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Clean up `findWiredInUnit`. In particular, avoid `head`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6a2eec98d9f5c3f5d735042f0d7bb65d0dbb3323" style="color: #1068bf; text-decoration: none;">6a2eec98</a></strong>
<div>
<span>by Bodigrim</span>
<i>at 2022-09-28T22:52:38-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Eliminate headFS, use unconsFS instead
A small step towards #22185 to avoid partial functions + safe implementation
of `startsWithUnderscore`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5a535172d13b30c94766751d0bc21a494b8858ed" style="color: #1068bf; text-decoration: none;">5a535172</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-09-29T17:04:20+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Demand: Format Call SubDemands `Cn(sd)` as `C(n,sd)` (#22231)
Justification in #22231. Short form: In a demand like `1C1(C1(L))`
it was too easy to confuse which `1` belongs to which `C`. Now
that should be more obvious.
Fixes #22231
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ea0083bf56b222579b586c8247031e04c80c15f1" style="color: #1068bf; text-decoration: none;">ea0083bf</a></strong>
<div>
<span>by Bryan Richter</span>
<i>at 2022-09-29T15:48:38-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Revert "ci: enable parallel compression for xz"
Combined wxth XZ_OPT=9, this blew the memory capacity of CI runners.
This reverts commit a5f9c35f5831ef5108e87813a96eac62803852ab.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f5e8f493b015df859833beac5a8e64a0f9b9d4f4" style="color: #1068bf; text-decoration: none;">f5e8f493</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-09-30T18:42:13+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Boxity: Don't update Boxity unless worker/wrapper follows (#21754)
A small refactoring in our Core Opt pipeline and some new functions for
transfering argument boxities from one signature to another to facilitate
`Note [Don't change boxity without worker/wrapper]`.
Fixes #21754.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4baf7b1ceaef2d4f49e81e5786a855e22ed864bf" style="color: #1068bf; text-decoration: none;">4baf7b1c</a></strong>
<div>
<span>by M Farkas-Dyck</span>
<i>at 2022-09-30T17:45:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Scrub various partiality involving empty lists.
Avoids some uses of `head` and `tail`, and some panics when an argument is null.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/95ead839fd39e0aa781dca9b1268b243c29ccaeb" style="color: #1068bf; text-decoration: none;">95ead839</a></strong>
<div>
<span>by Alexis King</span>
<i>at 2022-10-01T00:37:43-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix a bug in continuation capture across multiple stack chunks
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2209665273135644f1b52470ea2cb53169f2ef91" style="color: #1068bf; text-decoration: none;">22096652</a></strong>
<div>
<span>by Bodigrim</span>
<i>at 2022-10-01T00:38:22-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Enforce internal invariant of OrdList and fix bugs in viewCons / viewSnoc
`viewCons` used to ignore `Many` constructor completely, returning `VNothing`.
`viewSnoc` violated internal invariant of `Many` being a non-empty list.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/48ab9ca5abae82c45495c01e7634ff2a92979346" style="color: #1068bf; text-decoration: none;">48ab9ca5</a></strong>
<div>
<span>by Nicolas Trangez</span>
<i>at 2022-10-04T20:34:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>chore: extend `.editorconfig` for C files
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b8df5c72185effbe2cca8d6038d2a356690c9d00" style="color: #1068bf; text-decoration: none;">b8df5c72</a></strong>
<div>
<span>by Brandon Chinn</span>
<i>at 2022-10-04T20:34:46-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix docs for pattern synonyms</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/463ffe0287eab354a438304111041ef82d2ed016" style="color: #1068bf; text-decoration: none;">463ffe02</a></strong>
<div>
<span>by Oleg Grenrus</span>
<i>at 2022-10-04T20:35:24-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use sameByteArray# in sameByteArray
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fbe1e86ea5e793533898d6935a3b4e60afbd04a7" style="color: #1068bf; text-decoration: none;">fbe1e86e</a></strong>
<div>
<span>by Pierre Le Marre</span>
<i>at 2022-10-05T15:58:43+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Minor fixes following Unicode 15.0.0 update
- Fix changelog for Unicode 15.0.0
- Fix the checksums of the downloaded Unicode files, in base's tool: "ucd2haskell".
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8a31d02e0b76ea0d279f5c6d74239e6aa45ef631" style="color: #1068bf; text-decoration: none;">8a31d02e</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-10-05T20:40:41-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: don't enforce aligned((8)) on 32-bit targets
We simply need to align to the word size for pointer tagging to work. On
32-bit targets, aligned((8)) is wasteful.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/532de36870ed9e880d5f146a478453701e9db25d" style="color: #1068bf; text-decoration: none;">532de368</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2022-10-06T07:45:46-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Export symbolSing, SSymbol, and friends (CLC#85)
This implements this Core Libraries Proposal:
https://github.com/haskell/core-libraries-committee/issues/85
In particular, it:
1. Exposes the `symbolSing` method of `KnownSymbol`,
2. Exports the abstract `SSymbol` type used in `symbolSing`, and
3. Defines an API for interacting with `SSymbol`.
This also makes corresponding changes for `natSing`/`KnownNat`/`SNat` and
`charSing`/`KnownChar`/`SChar`. This fixes #15183 and addresses part (2)
of #21568.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d83a92e6b3ac4609fe0e1159ced59f12dcf622bc" style="color: #1068bf; text-decoration: none;">d83a92e6</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-10-07T07:36:30-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove mention of make from README.md
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/945e8e491441c1efdab7c0e1bd2e04d0224a4ad5" style="color: #1068bf; text-decoration: none;">945e8e49</a></strong>
<div>
<span>by Bodigrim</span>
<i>at 2022-10-10T17:13:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add a newline before since pragma in Data.Array.Byte
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/44fcdb04467c23b794a82451c64cbfaed6f4ef62" style="color: #1068bf; text-decoration: none;">44fcdb04</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2022-10-10T17:14:06-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Parser/PostProcess: rename failOp* functions
There are three functions named failOp* in the parser:
failOpNotEnabledImportQualifiedPost
failOpImportQualifiedTwice
failOpFewArgs
Only the last one has anything to do with operators. The other two
were named this way either by mistake or due to a misunderstanding of
what "op" stands for. This small patch corrects this.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/96d32ff289f87b8c78f0a8d1b11295c9563ec020" style="color: #1068bf; text-decoration: none;">96d32ff2</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-10-10T22:30:21+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make rewrite rules "win" over inlining
If a rewrite rule and a rewrite rule compete in the simplifier, this
patch makes sure that the rewrite rule "win". That is, in general
a bit fragile, but it's a huge help when making specialisation work
reliably, as #21851 and #22097 showed.
The change is fairly straightforwad, and documented in
Note [Rewrite rules and inlining]
in GHC.Core.Opt.Simplify.Iteration.
Compile-times change, up and down a bit -- in some cases because
we get better specialisation. But the payoff (more reliable
specialisation) is large.
Metrics: compile_time/bytes allocated
-----------------------------------------------
T10421(normal) +3.7% BAD
T10421a(normal) +5.5%
T13253(normal) +1.3%
T14052(ghci) +1.8%
T15304(normal) -1.4%
T16577(normal) +3.1% BAD
T17516(normal) +2.3%
T17836(normal) -1.9%
T18223(normal) -1.8%
T8095(normal) -1.3%
T9961(normal) +2.5% BAD
geo. mean +0.0%
minimum -1.9%
maximum +5.5%
Nofib results are (bytes allocated)
+-------------------------------++----------+
| ||tsv (rel) |
+===============================++==========+
| imaginary/paraffins || +0.27% |
| imaginary/rfib || -0.04% |
| real/anna || +0.02% |
| real/fem || -0.04% |
| real/fluid || +1.68% |
| real/gamteb || -0.34% |
| real/gg || +1.54% |
| real/hidden || -0.01% |
| real/hpg || -0.03% |
| real/infer || -0.03% |
| real/prolog || +0.02% |
| real/veritas || -0.47% |
| shootout/fannkuch-redux || -0.03% |
| shootout/k-nucleotide || -0.02% |
| shootout/n-body || -0.06% |
| shootout/spectral-norm || -0.01% |
| spectral/cryptarithm2 || +1.25% |
| spectral/fibheaps || +18.33% |
| spectral/last-piece || -0.34% |
+===============================++==========+
| geom mean || +0.17% |
There are extensive notes in !8897 about the regressions.
Briefly
* fibheaps: there was a very delicately balanced inlining that
tipped over the wrong way after this change.
* cryptarithm2 and paraffins are caused by #22274, which is
a separate issue really. (I.e. the right fix is *not* to
make inlining "win" over rules.)
So I'm accepting these changes
Metric Increase:
T10421
T16577
T9961
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ed4b5885bdac7b986655bb40f8c9ece2f8735c98" style="color: #1068bf; text-decoration: none;">ed4b5885</a></strong>
<div>
<span>by Joachim Breitner</span>
<i>at 2022-10-10T23:16:11-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Utils.JSON: do not escapeJsonString in ToJson String instance
as `escapeJsonString` is used in `renderJSON`, so the `JSString`
constructor is meant to carry the unescaped string.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fbb887406d27b5271e45392c2c25f8b1ba4cdeae" style="color: #1068bf; text-decoration: none;">fbb88740</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-10-11T12:48:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Tidy implicit binds
We want to put implicit binds into fat interface files, so the easiest
thing to do seems to be to treat them uniformly with other binders.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e058b138fef9f697095f97cb6a52f6ba58c940c5" style="color: #1068bf; text-decoration: none;">e058b138</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-10-11T12:48:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Interface Files with Core Definitions
This commit adds three new flags
* -fwrite-if-simplified-core: Writes the whole core program into an interface
file
* -fbyte-code-and-object-code: Generate both byte code and object code
when compiling a file
* -fprefer-byte-code: Prefer to use byte-code if it's available when
running TH splices.
The goal for including the core bindings in an interface file is to be able to restart the compiler pipeline
at the point just after simplification and before code generation. Once compilation is
restarted then code can be created for the byte code backend.
This can significantly speed up
start-times for projects in GHCi. HLS already implements its own version of these extended interface
files for this reason.
Preferring to use byte-code means that we can avoid some potentially
expensive code generation steps (see #21700)
* Producing object code is much slower than producing bytecode, and normally you
need to compile with `-dynamic-too` to produce code in the static and dynamic way, the
dynamic way just for Template Haskell execution when using a dynamically linked compiler.
* Linking many large object files, which happens once per splice, can be quite
expensive compared to linking bytecode.
And you can get GHC to compile the necessary byte code so
`-fprefer-byte-code` has access to it by using
`-fbyte-code-and-object-code`.
Fixes #21067
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9789ea8e9f35d5c0674e10730c3435c4d3293f2b" style="color: #1068bf; text-decoration: none;">9789ea8e</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-10-11T12:48:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Teach -fno-code about -fprefer-byte-code
This patch teachs the code generation logic of -fno-code about
-fprefer-byte-code, so that if we need to generate code for a module
which prefers byte code, then we generate byte code rather than object
code.
We keep track separately which modules need object code and which byte
code and then enable the relevant code generation for each. Typically
the option will be enabled globally so one of these sets should be empty
and we will just turn on byte code or object code generation.
We also fix the bug where we would generate code for a module which
enables Template Haskell despite the fact it was unecessary.
Fixes #22016
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/caced75765472a1a94453f2e5a439dba0d04a265" style="color: #1068bf; text-decoration: none;">caced757</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-10-11T12:49:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Don't keep exit join points so much
We were religiously keeping exit join points throughout, which
had some bad effects (#21148, #22084).
This MR does two things:
* Arranges that exit join points are inhibited from inlining
only in /one/ Simplifier pass (right after Exitification).
See Note [Be selective about not-inlining exit join points]
in GHC.Core.Opt.Exitify
It's not a big deal, but it shaves 0.1% off compile times.
* Inline used-once non-recursive join points very aggressively
Given join j x = rhs in
joinrec k y = ....j x....
where this is the only occurrence of `j`, we want to inline `j`.
(Unless sm_keep_exits is on.)
See Note [Inline used-once non-recursive join points] in
GHC.Core.Opt.Simplify.Utils
This is just a tidy-up really. It doesn't change allocation, but
getting rid of a binding is always good.
Very effect on nofib -- some up and down.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/284cf387537110ce9139bf6ed0841c8f4f41db2a" style="color: #1068bf; text-decoration: none;">284cf387</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-10-11T12:49:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make SpecConstr bale out less often
When doing performance debugging on #22084 / !8901, I found that the
algorithm in SpecConstr.decreaseSpecCount was so aggressive that if
there were /more/ specialisations available for an outer function,
that could more or less kill off specialisation for an /inner/
function. (An example was in nofib/spectral/fibheaps.)
This patch makes it a bit more aggressive, by dividing by 2, rather
than by the number of outer specialisations.
This makes the program bigger, temporarily:
T19695(normal) ghc/alloc +11.3% BAD
because we get more specialisation. But lots of other programs
compile a bit faster and the geometric mean in perf/compiler
is 0.0%.
Metric Increase:
T19695
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/66af1399963a1872e520d1dbd1c94fd43e65082d" style="color: #1068bf; text-decoration: none;">66af1399</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-10-11T12:49:59-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CmmToC: emit explicit tail calls when the C compiler supports it
Clang 13+ supports annotating a return statement using the musttail
attribute, which guarantees that it lowers to a tail call if compilation
succeeds.
This patch takes advantage of that feature for the unregisterised code
generator. The configure script tests availability of the musttail
attribute, if it's available, the Cmm tail calls will become C tail
calls that avoids the mini interpreter trampoline overhead. Nothing is
affected if the musttail attribute is not supported.
Clang documentation:
https://clang.llvm.org/docs/AttributeReference.html#musttail
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f0decd5063a853fc8f38a8944b2c91995cd5e48" style="color: #1068bf; text-decoration: none;">7f0decd5</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-10-11T12:50:40-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Don't include BufPos in interface files
Ticket #22162 pointed out that the build directory was leaking into the
ABI hash of a module because the BufPos depended on the location of the
build tree.
BufPos is only used in GHC.Parser.PostProcess.Haddock, and the
information doesn't need to be propagated outside the context of a
module.
Fixes #22162
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dce9f320ce7275fa97f49abef604abbc3b0f9a9c" style="color: #1068bf; text-decoration: none;">dce9f320</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-10-11T12:51:19-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CLabel: fix isInfoTableLabel
isInfoTableLabel does not take Cmm info table into account. This patch is required for data section layout of wasm32 NCG to work.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/da679f2eda0f920afa522ce9c4b9ad50cdec7d74" style="color: #1068bf; text-decoration: none;">da679f2e</a></strong>
<div>
<span>by Bodigrim</span>
<i>at 2022-10-11T18:02:59-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Extend documentation for Data.List, mostly wrt infinite lists
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9c099387ae82b7bf91232b714a3d35f429d6ffe3" style="color: #1068bf; text-decoration: none;">9c099387</a></strong>
<div>
<span>by jwaldmann</span>
<i>at 2022-10-11T18:02:59-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Expand comment for Data.List.permutations</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d3863cb7418b77f3cd49c219f1f42f64efb2cc93" style="color: #1068bf; text-decoration: none;">d3863cb7</a></strong>
<div>
<span>by Bodigrim</span>
<i>at 2022-10-11T18:03:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ByteArray# is unlifted, not unboxed
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f6260e8b94ef531204351b79e0ca3ff8921d1b2f" style="color: #1068bf; text-decoration: none;">f6260e8b</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-11T23:45:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Add missing declaration of stg_noDuplicate
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/69ccec2ce685fee3aeac66519645d568b169b592" style="color: #1068bf; text-decoration: none;">69ccec2c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-11T23:45:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>base: Move CString, CStringLen to GHC.Foreign
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f6e8feb475cf421c408102c2abd531e380b67b00" style="color: #1068bf; text-decoration: none;">f6e8feb4</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-11T23:45:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>base: Move IPE helpers to GHC.InfoProv
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/866c736ef29a07c6f3aa68063ef98ee0ecea12f3" style="color: #1068bf; text-decoration: none;">866c736e</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-11T23:45:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Refactor IPE tracing support
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6b0d2022699d3d8b446d024ee837c0d07e2c1aa0" style="color: #1068bf; text-decoration: none;">6b0d2022</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-11T23:45:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Refactor IPE initialization
Here we refactor the representation of info table provenance information
in object code to significantly reduce its size and link-time impact.
Specifically, we deduplicate strings and represent them as 32-bit
offsets into a common string table.
In addition, we rework the registration logic to eliminate allocation
from the registration path, which is run from a static initializer where
things like allocation are technically undefined behavior (although it
did previously seem to work). For similar reasons we eliminate lock
usage from registration path, instead relying on atomic CAS.
Closes #22077.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9b572d541d1d356d7836408ffa98a7b300d02174" style="color: #1068bf; text-decoration: none;">9b572d54</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-11T23:45:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Separate IPE source file from span
The source file name can very often be shared across many IPE entries
whereas the source coordinates are generally unique. Separate the two to
exploit sharing of the former.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/27978ceb649e929df29a94e98916c341169395af" style="color: #1068bf; text-decoration: none;">27978ceb</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-10-11T23:45:46-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make Cmm Lint messages use dump style
Lint errors indicate an internal error in GHC, so it makes sense to use
it instead of the user style. This is consistent with Core Lint and STG Lint:
https://gitlab.haskell.org/ghc/ghc/-/blob/22096652/compiler/GHC/Core/Lint.hs#L429
https://gitlab.haskell.org/ghc/ghc/-/blob/22096652/compiler/GHC/Stg/Lint.hs#L144
Fixes #22218.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/64a390d9c57b35edb6e7cf09b9324b43a3d08671" style="color: #1068bf; text-decoration: none;">64a390d9</a></strong>
<div>
<span>by Bryan Richter</span>
<i>at 2022-10-12T09:52:51+03:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Mark T7919 as fragile
On x86_64-linux, T7919 timed out ~30 times during July 2022.
And again ~30 times in September 2022.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/481467a5ceb07bb28bb6edb1569c86ff3cac315f" style="color: #1068bf; text-decoration: none;">481467a5</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-12T08:08:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Don't hint inlining of appendToRunQueue
These hints have resulted in compile-time warnings due to failed
inlinings for quite some time. Moreover, it's quite unlikely that
inlining them is all that beneficial given that they are rather sizeable
functions.
Resolves #22280.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/819150893a9af7ee0770aba64b140bf1bc54957b" style="color: #1068bf; text-decoration: none;">81915089</a></strong>
<div>
<span>by Curran McConnell</span>
<i>at 2022-10-12T16:32:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>remove name shadowing
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/626652f7c172f307bd87afaee59c7f0e2825c55d" style="color: #1068bf; text-decoration: none;">626652f7</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2022-10-12T16:33:13-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>winio: do not re-translate input when handle is uncooked
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5172789a12dcca65574dc608364a7cbfdec2fe58" style="color: #1068bf; text-decoration: none;">5172789a</a></strong>
<div>
<span>by Charles Taylor</span>
<i>at 2022-10-12T16:33:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Unrestricted OverloadedLabels (#11671)
Implements GHC proposal:
https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0170-unrestricted-overloadedlabels.rst
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ce2939085e5b59513748ff73bc66161c09d69468" style="color: #1068bf; text-decoration: none;">ce293908</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-10-13T05:58:19-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add a perf test for the generics code pattern from #21839.
This code showed a strong shift between compile time (got worse) and
run time (got a lot better) recently which is perfectly acceptable.
However it wasn't clear why the compile time regression was happening
initially so I'm adding this test to make it easier to track such changes
in the future.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/78ab7afe244a7617d600a6180d81d9dec657114d" style="color: #1068bf; text-decoration: none;">78ab7afe</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-13T05:58:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker: Consolidate initializer/finalizer handling
Here we extend our treatment of initializer/finalizer priorities to
include ELF and in so doing refactor things to share the implementation
with PEi386. As well, I fix a subtle misconception of the ordering
behavior for `.ctors`.
Fixes #21847.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/44692713c6fdfb1bf50a2480ca304e6498a0f3a3" style="color: #1068bf; text-decoration: none;">44692713</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-13T05:58:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/linker: Add support for .fini sections
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/beebf546c9ea818c9d5a61688bfee8f3b7dbeb9f" style="color: #1068bf; text-decoration: none;">beebf546</a></strong>
<div>
<span>by Simon Hengel</span>
<i>at 2022-10-13T05:59:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update phases.rst
(the name of the original source file is $1, not $2)</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/eda6c05e65144b35de62c33d0fd5d35a417233ac" style="color: #1068bf; text-decoration: none;">eda6c05e</a></strong>
<div>
<span>by Finley McIlwaine</span>
<i>at 2022-10-13T06:00:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Clearer error msg for newtype GADTs with defaulted kind
When a newtype introduces GADT eq_specs due to a defaulted
RuntimeRep, we detect this and print the error message with
explicit kinds.
This also refactors newtype type checking to use the new
diagnostic infra.
Fixes #21447
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/43ab435afc01284c1fb7e500783703f580a55a90" style="color: #1068bf; text-decoration: none;">43ab435a</a></strong>
<div>
<span>by Pierre Le Marre</span>
<i>at 2022-10-14T07:45:43-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add standard Unicode case predicates isUpperCase and isLowerCase.
These predicates use the standard Unicode case properties and are more intuitive than isUpper and isLower.
Approved by CLC in https://github.com/haskell/core-libraries-committee/issues/90#issuecomment-1276649403.
Fixes #14589
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/aec5a443bc45ca99cfeedc1777edb0aceca142cf" style="color: #1068bf; text-decoration: none;">aec5a443</a></strong>
<div>
<span>by Bodigrim</span>
<i>at 2022-10-14T07:46:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add type signatures in where-clause of Data.List.permutations
The type of interleave' is very much revealing, otherwise it's extremely tough to decipher.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ee0deb8054da2a597fc5624469b4c44fd769ada2" style="color: #1068bf; text-decoration: none;">ee0deb80</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-14T18:29:20-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Use pthread_setname_np correctly on Darwin
As noted in #22206, pthread_setname_np on Darwin only supports
setting the name of the calling thread. Consequently we must introduce
a trampoline which first sets the thread name before entering the thread
entrypoint.</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8eff62a43cebbb21f00aeea138bcc343d8ac8f34" style="color: #1068bf; text-decoration: none;">8eff62a4</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-14T18:29:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Add test for #22282
This will complement mpickering's more general port of foundation's
numerical testsuite, providing a test for the specific case found
in #22282.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/62a550010ed94e1969c96150f2781854a0802766" style="color: #1068bf; text-decoration: none;">62a55001</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-14T18:29:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ncg/aarch64: Fix sub-word sign extension yet again
In adc7f108141a973b6dcb02a7836eed65d61230e8 we fixed a number of issues
to do with sign extension in the AArch64 NCG found by ghc/test-primops>.
However, this patch made a critical error, assuming that getSomeReg
would allocate a fresh register for the result of its evaluation.
However, this is not the case as `getSomeReg (CmmReg r) == r`.
Consequently, any mutation of the register returned by `getSomeReg` may
have unwanted side-effects on other expressions also mentioning `r`. In
the fix listed above, this manifested as the registers containing the
operands of binary arithmetic operations being incorrectly
sign-extended. This resulted in #22282.
Sadly, the rather simple structure of the tests generated
by `test-primops` meant that this particular case was not exercised.
Even more surprisingly, none of our testsuite caught this case.
Here we fix this by ensuring that intermediate sign extension is
performed in a fresh register.
Fixes #22282.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/54e41b164f79ad74c33f556fc82d042441ed3bfb" style="color: #1068bf; text-decoration: none;">54e41b16</a></strong>
<div>
<span>by Teo Camarasu</span>
<i>at 2022-10-15T18:09:24+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: ensure we are below maxHeapSize after returning megablocks
When the heap is heavily block fragmented the live byte size might be
low while the memory usage is high. We want to ensure that heap overflow
triggers in these cases.
We do so by checking that we can return enough megablocks to
under maxHeapSize at the end of GC.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/29bb90db7e0756cd7dda96d9a61c3ab0abe769c2" style="color: #1068bf; text-decoration: none;">29bb90db</a></strong>
<div>
<span>by Teo Camarasu</span>
<i>at 2022-10-15T18:09:24+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: trigger a major collection if megablock usage exceeds maxHeapSize
When the heap is suffering from block fragmentation, live bytes might be
low while megablock usage is high.
If megablock usage exceeds maxHeapSize, we want to trigger a major GC to
try to recover some memory otherwise we will die from a heapOverflow at
the end of the GC.
Fixes #21927
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4a4641ca2f2a157dab0fe2df5316f79ffb52c047" style="color: #1068bf; text-decoration: none;">4a4641ca</a></strong>
<div>
<span>by Teo Camarasu</span>
<i>at 2022-10-15T18:11:29+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add realease note for #21927
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c1e5719aa500cb9e0f2549eb9b9e2255038ac35d" style="color: #1068bf; text-decoration: none;">c1e5719a</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-10-17T11:58:46-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>DmdAnal: Look through unfoldings of DataCon wrappers (#22241)
Previously, the demand signature we computed upfront for a DataCon wrapper
lacked boxity information and was much less precise than the demand transformer
for the DataCon worker.
In this patch we adopt the solution to look through unfoldings of DataCon
wrappers during Demand Analysis, but still attach a demand signature for other
passes such as the Simplifier.
See `Note [DmdAnal for DataCon wrappers]` for more details.
Fixes #22241.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8c72411d9504963069fb1ae736a2470cb9ae1250" style="color: #1068bf; text-decoration: none;">8c72411d</a></strong>
<div>
<span>by Gergo ERDI</span>
<i>at 2022-10-17T19:20:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add `Enum (Down a)` instance that swaps `succ` and `pred`
See https://github.com/haskell/core-libraries-committee/issues/51 for
discussion. The key points driving the implementation are the following
two ideas:
* For the `Int` type, `comparing (complement @Int)` behaves exactly as
an order-swapping `compare @Int`.
* `enumFrom @(Down a)` can be implemented in terms of `enumFromThen @a`,
if only the corner case of starting at the very end is handled specially
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d80ad2f40f2092f14402351a6a3cb944039a57df" style="color: #1068bf; text-decoration: none;">d80ad2f4</a></strong>
<div>
<span>by Alan Zimmerman</span>
<i>at 2022-10-17T19:20:40-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update the check-exact infrastructure to match ghc-exactprint
GHC tests the exact print annotations using the contents of
utils/check-exact.
The same functionality is provided via
https://github.com/alanz/ghc-exactprint
The latter was updated to ensure it works with all of the files on
hackage when 9.2 was released, as well as updated to ensure users of
the library could work properly (apply-refact, retrie, etc).
This commit brings the changes from ghc-exactprint into
GHC/utils/check-exact, adapting for the changes to master.
Once it lands, it will form the basis for the 9.4 version of
ghc-exactprint.
See also discussion around this process at #21355
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/08ab5419286d2620f2e6762607bad03c5bcd29ad" style="color: #1068bf; text-decoration: none;">08ab5419</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-10-17T19:21:15-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Avoid allocating intermediate lists for non recursive bindings.
We do so by having an explicit folding function that doesn't need to
allocate intermediate lists first.
Fixes #22196
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ff6275ef829873a70350c6d597e485bb84dd1bb1" style="color: #1068bf; text-decoration: none;">ff6275ef</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-10-17T19:21:52-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Testsuite: Add a new tables_next_to_code predicate.
And use it to avoid T21710a failing on non-tntc archs.
Fixes #22169
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/abb82f3892f8530dcaca1caae8a614b1faa591c3" style="color: #1068bf; text-decoration: none;">abb82f38</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-10-17T19:22:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>example rewrite</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/39beb8017ba64801f6573cf1a1a67e94fdb522ee" style="color: #1068bf; text-decoration: none;">39beb801</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-10-17T19:22:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>remove redirect</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0d9fb651768f0b88be0a564deebbbd2391104ab4" style="color: #1068bf; text-decoration: none;">0d9fb651</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-10-17T19:22:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>use heredoc</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0fa2d185b23eb08e2a2f2a4b7e40431c599e446d" style="color: #1068bf; text-decoration: none;">0fa2d185</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-10-17T19:23:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>testsuite: Fix typo when setting llvm_ways
Since 2014 llvm_ways has been set to [] so none of the tests which use
only_ways(llvm_ways) have worked as expected.
Hopefully the tests still pass with this typo fix!
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ced664a27247730925530d39c83b879969b68709" style="color: #1068bf; text-decoration: none;">ced664a2</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-10-17T19:23:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix T15155l not getting -fllvm
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0ac6042302219b162a23b85f637bcc8fa27fafaa" style="color: #1068bf; text-decoration: none;">0ac60423</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-10-18T03:34:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix GHCis interaction with tag inference.
I had assumed that wrappers were not inlined in interactive mode.
Meaning we would always execute the compiled wrapper which properly
takes care of upholding the strict field invariant.
This turned out to be wrong. So instead we now run tag inference even
when we generate bytecode. In that case only for correctness not
performance reasons although it will be still beneficial for runtime
in some cases.
I further fixed a bug where GHCi didn't tag nullary constructors
properly when used as arguments. Which caused segfaults when calling
into compiled functions which expect the strict field invariant to
be upheld.
Fixes #22042 and #21083
-------------------------
Metric Increase:
T4801
Metric Decrease:
T13035
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9ecd1ac03d9cd2eea8e2b50233a08fd3d9cca7c7" style="color: #1068bf; text-decoration: none;">9ecd1ac0</a></strong>
<div>
<span>by M Farkas-Dyck</span>
<i>at 2022-10-18T03:35:38-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make `Functor` a superclass of `TrieMap`, which lets us derive the `map` functions.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f60244d7b24a595e9eb68ee3254bbe52fc00fdb8" style="color: #1068bf; text-decoration: none;">f60244d7</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-18T03:36:15-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>configure: Bump minimum bootstrap GHC version
Fixes #22245
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ba4bd4a48223bc9b215cfda138a5de9f99c87cdf" style="color: #1068bf; text-decoration: none;">ba4bd4a4</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-10-18T03:36:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Build System: Remove out-of-date comment about make build system
Both make and hadrian interleave compilation of modules of different
modules and don't respect the package boundaries. Therefore I just
remove this comment which points out this "difference".
Fixes #22253
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e1bbd36841e19812c7ed544b66256da82ce68fd5" style="color: #1068bf; text-decoration: none;">e1bbd368</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-10-18T16:15:49+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Allow configuration of error message printing
This MR implements the idea of #21731 that the printing of a diagnostic
method should be configurable at the printing time.
The interface of the `Diagnostic` class is modified from:
```
class Diagnostic a where
diagnosticMessage :: a -> DecoratedSDoc
diagnosticReason :: a -> DiagnosticReason
diagnosticHints :: a -> [GhcHint]
```
to
```
class Diagnostic a where
type DiagnosticOpts a
defaultDiagnosticOpts :: DiagnosticOpts a
diagnosticMessage :: DiagnosticOpts a -> a -> DecoratedSDoc
diagnosticReason :: a -> DiagnosticReason
diagnosticHints :: a -> [GhcHint]
```
and so each `Diagnostic` can implement their own configuration record
which can then be supplied by a client in order to dictate how to print
out the error message.
At the moment this only allows us to implement #21722 nicely but in
future it is more natural to separate the configuration of how much
information we put into an error message and how much we decide to print
out of it.
Updates Haddock submodule
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/99dc3e3d76daab80a5c5209a3e0c44c9e4664e06" style="color: #1068bf; text-decoration: none;">99dc3e3d</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-10-18T16:15:53+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add -fsuppress-error-contexts to disable printing error contexts in errors
In many development environments, the source span is the primary means
of seeing what an error message relates to, and the In the expression:
and In an equation for: clauses are not particularly relevant. However,
they can grow to be quite long, which can make the message itself both
feel overwhelming and interact badly with limited-space areas.
It's simple to implement this flag so we might as well do it and give
the user control about how they see their messages.
Fixes #21722
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5b3a992f5d166007c3c5a22f120ed08e0a27f01a" style="color: #1068bf; text-decoration: none;">5b3a992f</a></strong>
<div>
<span>by Dai</span>
<i>at 2022-10-19T10:45:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add VecSlot for unboxed sums of SIMD vectors
This patch adds the missing `VecRep` case to `primRepSlot` function and
all the necessary machinery to carry this new `VecSlot` through code
generation. This allows programs involving unboxed sums of SIMD vectors
to be written and compiled.
Fixes #22187
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6d7d91817795d7ee7f45557411368a1738daa488" style="color: #1068bf; text-decoration: none;">6d7d9181</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-10-19T10:45:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove SIMD conversions
This patch makes it so that packing/unpacking SIMD
vectors always uses the right sized types, e.g.
unpacking a Word16X4# will give a tuple of Word16#s.
As a result, we can get rid of the conversion instructions
that were previously required.
Fixes #22296
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3be48877e204fca8e5d5ab984186e0d20d81f262" style="color: #1068bf; text-decoration: none;">3be48877</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-10-19T10:45:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Cmm Lint: relax SIMD register assignment check
As noted in #22297, SIMD vector registers can be used
to store different kinds of values, e.g. xmm1 can be used
both to store integer and floating point values.
The Cmm type system doesn't properly account for this, so
we weaken the Cmm register assignment lint check to only
compare widths when comparing a vector type with its
allocated vector register.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f7b7a3122185222d5059e37315991afcf319e43c" style="color: #1068bf; text-decoration: none;">f7b7a312</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-10-19T10:45:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Disable some SIMD tests on non-X86 architectures
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/83638dce4e20097b9b7073534e488a92dce6e88f" style="color: #1068bf; text-decoration: none;">83638dce</a></strong>
<div>
<span>by M Farkas-Dyck</span>
<i>at 2022-10-19T10:46:29-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Scrub various partiality involving lists (again).
Lets us avoid some use of `head` and `tail`, and some panics.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c3732c6210972a992e1153b0667cf8abf0351acd" style="color: #1068bf; text-decoration: none;">c3732c62</a></strong>
<div>
<span>by M Farkas-Dyck</span>
<i>at 2022-10-19T10:47:13-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Enforce invariant of `ListBag` constructor.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/488d36311709f958f6c759952fc8379b231e69ca" style="color: #1068bf; text-decoration: none;">488d3631</a></strong>
<div>
<span>by Bodigrim</span>
<i>at 2022-10-19T10:47:52-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>More precise types for fields of OverlappingInstances and UnsafeOverlap in TcSolverReportMsg
It's clear from asserts in `GHC.Tc.Errors` that `overlappingInstances_matches`
and `unsafeOverlapped` are supposed to be non-empty, and `unsafeOverlap_matches`
contains a single instance, but these invariants are immediately lost afterwards
and not encoded in types. This patch enforces the invariants by pattern matching
and makes types more precise, avoiding asserts and partial functions such as `head`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/607ce263fd8304d02c24e997abc0d17ead1cb19b" style="color: #1068bf; text-decoration: none;">607ce263</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-10-19T10:47:52-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Rename unsafeOverlap_matches -> unsafeOverlap_match in UnsafeOverlap</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1fab959843a27a3acfa04b435241688cad3ab713" style="color: #1068bf; text-decoration: none;">1fab9598</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-10-19T10:48:29-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add SpliceTypes test for hie files
This test checks that typed splices and quotes get the right type
information when used in hiefiles.
See #21619
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a8b52786326b5c931daf19222be87c58e2b8cab8" style="color: #1068bf; text-decoration: none;">a8b52786</a></strong>
<div>
<span>by Jan Hrček</span>
<i>at 2022-10-19T10:49:09-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Small language fixes in 'Using GHC'
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1dab116784e480ab277623e1bd8d78beadcbc433" style="color: #1068bf; text-decoration: none;">1dab1167</a></strong>
<div>
<span>by Gergő Érdi</span>
<i>at 2022-10-19T10:49:51-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix typo in `Opt_WriteIfSimplifiedCore`'s name
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b17cfc9c4b341e122294c0701803fc8f521fa210" style="color: #1068bf; text-decoration: none;">b17cfc9c</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-10-19T10:50:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>TyEq:N assertion: only for saturated applications
The assertion that checked TyEq:N in canEqCanLHSFinish incorrectly
triggered in the case of an unsaturated newtype TyCon heading the RHS,
even though we can't unwrap such an application. Now, we only trigger
an assertion failure in case of a saturated application of a newtype
TyCon.
Fixes #22310
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ff6f2228bd03be3dd55d0014fd6d2e948a6c9f7c" style="color: #1068bf; text-decoration: none;">ff6f2228</a></strong>
<div>
<span>by M Farkas-Dyck</span>
<i>at 2022-10-20T16:15:51-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CoreToStg: purge `DynFlags`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1ebd521f848289a99993f95af4e2021023537ad5" style="color: #1068bf; text-decoration: none;">1ebd521f</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-10-20T16:16:27-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Make fat014 test robust
For some reason I implemented this as a makefile test rather than a
ghci_script test. Hopefully making it a ghci_script test makes it more
robust.
Fixes #22313
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8cd6f435e60f9dd14ad55a0002ff833536e9ccb2" style="color: #1068bf; text-decoration: none;">8cd6f435</a></strong>
<div>
<span>by Curran McConnell</span>
<i>at 2022-10-21T02:58:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>remove a no-warn directive from GHC.Cmm.ContFlowOpt
This patch is motivated by the desire to remove the {-# OPTIONS_GHC
-fno-warn-incomplete-patterns #-} directive at the top of
GHC.Cmm.ContFlowOpt. (Based on the text in this coding standards doc, I
understand it's a goal of the project to remove such directives.) I
chose this task because I'm a new contributor to GHC, and it seemed like
a good way to get acquainted with the patching process.
In order to address the warning that arose when I removed the no-warn
directive, I added a case to removeUnreachableBlocksProc to handle the
CmmData constructor. Clearly, since this partial function has not been
erroring out in the wild, its inputs are always in practice wrapped by
the CmmProc constructor. Therefore the CmmData case is handled by a
precise panic (which is an improvement over the partial pattern match
from before).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a2af7c4c59ef24a71cc6cab7bd6b07d12f02aad1" style="color: #1068bf; text-decoration: none;">a2af7c4c</a></strong>
<div>
<span>by Nicolas Trangez</span>
<i>at 2022-10-21T02:58:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>build: get rid of `HAVE_TIME_H`
As advertized by `autoreconf`:
> All current systems provide time.h; it need not be checked for.
Hence, remove the check for it in `configure.ac` and remove conditional
inclusion of the header in `HAVE_TIME_H` blocks where applicable.
The `time.h` header was being included in various source files without a
`HAVE_TIME_H` guard already anyway.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/25cdc63044be34e5eb3ef478910bd5eeb2b5093f" style="color: #1068bf; text-decoration: none;">25cdc630</a></strong>
<div>
<span>by Nicolas Trangez</span>
<i>at 2022-10-21T02:58:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: remove use of `TIME_WITH_SYS_TIME`
`autoreconf` will insert an `m4_warning` when the obsolescent
`AC_HEADER_TIME` macro is used:
> Update your code to rely only on HAVE_SYS_TIME_H,
> then remove this warning and the obsolete code below it.
> All current systems provide time.h; it need not be checked for.
> Not all systems provide sys/time.h, but those that do, all allow
> you to include it and time.h simultaneously.
Presence of `sys/time.h` was already checked in an earlier
`AC_CHECK_HEADERS` invocation, so `AC_HEADER_TIME` can be dropped and
guards relying on `TIME_WITH_SYS_TIME` can be reworked to
(unconditionally) include `time.h` and include `sys/time.h` based on
`HAVE_SYS_TIME_H`.
Note the documentation of `AC_HEADER_TIME` in (at least) Autoconf 2.67
says
> This macro is obsolescent, as current systems can include both files
> when they exist. New programs need not use this macro.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1fe7921c283ccd4048fd6c1e410100e3953e2710" style="color: #1068bf; text-decoration: none;">1fe7921c</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-10-21T02:59:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>runhaskell</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e3b3986e2f06880114644069da797201ee0a53cb" style="color: #1068bf; text-decoration: none;">e3b3986e</a></strong>
<div>
<span>by David Feuer</span>
<i>at 2022-10-21T03:00:00-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Document how to quote certain names with spaces
Quoting a name for Template Haskell is a bit tricky if the second
character of that name is a single quote. The User's Guide falsely
claimed that it was impossible. Document how to do it.
Fixes #22236</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0eba81e8b02cb964cd1be5a6161e81eef3ef5870" style="color: #1068bf; text-decoration: none;">0eba81e8</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-10-21T03:00:00-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix syntax</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a4dbd102af1989526ca87f4dd949f72231284e68" style="color: #1068bf; text-decoration: none;">a4dbd102</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-21T09:11:12-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix manifest filename when writing Windows .rc files
As noted in #12971, we previously used `show` which resulted in
inappropriate escaping of non-ASCII characters.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/30f0d9a9ded55a822e094847d5ac8087262fb8da" style="color: #1068bf; text-decoration: none;">30f0d9a9</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-21T09:11:12-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Write response files in UTF-8 on Windows
This reverts the workaround introduced in
f63c8ef33ec9666688163abe4ccf2d6c0428a7e7, which taught our response file
logic to write response files with the `latin1` encoding to workaround
`gcc`'s lacking Unicode support. This is now no longer necessary (and in
fact actively unhelpful) since we rather use Clang.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b8304648731f1430dba9037f31107d75b3da78b0" style="color: #1068bf; text-decoration: none;">b8304648</a></strong>
<div>
<span>by M Farkas-Dyck</span>
<i>at 2022-10-21T09:11:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Scrub some partiality in `GHC.Core.Opt.Simplify.Utils`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/09ec7de23ea826cb7ac25cb96a214808693de377" style="color: #1068bf; text-decoration: none;">09ec7de2</a></strong>
<div>
<span>by Teo Camarasu</span>
<i>at 2022-10-21T13:23:07-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>template-haskell: Improve documentation of strictness annotation types
Before it was undocumentated that DecidedLazy can be returned by
reifyConStrictness for strict fields. This can happen when a field has
an unlifted type or its the single field of a newtype constructor.
Fixes #21380
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/881720697d7d3297120a56a74e2a94e938d6aaa1" style="color: #1068bf; text-decoration: none;">88172069</a></strong>
<div>
<span>by M Farkas-Dyck</span>
<i>at 2022-10-21T13:23:51-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Delete `eqExpr`, since GHC 9.4 has been released.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/86e6549ea3090d0d79c2aaed8373ba5696f2b6a9" style="color: #1068bf; text-decoration: none;">86e6549e</a></strong>
<div>
<span>by Ömer Sinan Ağacan</span>
<i>at 2022-10-22T07:41:30-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Introduce a standard thunk for allocating strings
Currently for a top-level closure in the form
hey = unpackCString# x
we generate code like this:
Main.hey_entry() // [R1]
{ info_tbls: [(c2T4,
label: Main.hey_info
rep: HeapRep static { Thunk }
srt: Nothing)]
stack_info: arg_space: 8 updfr_space: Just 8
}
{offset
c2T4: // global
_rqm::P64 = R1;
if ((Sp + 8) - 24 < SpLim) (likely: False) goto c2T5; else goto c2T6;
c2T5: // global
R1 = _rqm::P64;
call (stg_gc_enter_1)(R1) args: 8, res: 0, upd: 8;
c2T6: // global
(_c2T1::I64) = call "ccall" arg hints: [PtrHint,
PtrHint] result hints: [PtrHint] newCAF(BaseReg, _rqm::P64);
if (_c2T1::I64 == 0) goto c2T3; else goto c2T2;
c2T3: // global
call (I64[_rqm::P64])() args: 8, res: 0, upd: 8;
c2T2: // global
I64[Sp - 16] = stg_bh_upd_frame_info;
I64[Sp - 8] = _c2T1::I64;
R2 = hey1_r2Gg_bytes;
Sp = Sp - 16;
call GHC.CString.unpackCString#_info(R2) args: 24, res: 0, upd: 24;
}
}
This code is generated for every string literal. Only difference between
top-level closures like this is the argument for the bytes of the string
(hey1_r2Gg_bytes in the code above).
With this patch we introduce a standard thunk in the RTS, called
stg_MK_STRING_info, that does what `unpackCString# x` does, except it
gets the bytes address from the payload. Using this, for the closure
above, we generate this:
Main.hey_closure" {
Main.hey_closure:
const stg_MK_STRING_info;
const 0; // padding for indirectee
const 0; // static link
const 0; // saved info
const hey1_r1Gg_bytes; // the payload
}
This is much smaller in code.
Metric Decrease:
T10421
T11195
T12150
T12425
T16577
T18282
T18698a
T18698b
Co-Authored By: Ben Gamari <ben@well-typed.com>
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1937016b7834338eef12be19caefc8e37a90cd29" style="color: #1068bf; text-decoration: none;">1937016b</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-10-22T07:42:06-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Improve error for wrong key/value errors.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/11fe42d89d37539bd90f31ca47547922b3fc84ae" style="color: #1068bf; text-decoration: none;">11fe42d8</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2022-10-23T00:11:50+03:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Class layout info (#19623)
Updates the haddock submodule.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f0a90c117ac598504ccb6514de77355de7415c86" style="color: #1068bf; text-decoration: none;">f0a90c11</a></strong>
<div>
<span>by Sven Tennie</span>
<i>at 2022-10-24T00:12:51-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Pin used way for test cloneMyStack (#21977)
cloneMyStack checks the order of closures on the cloned stack. This may
change for different ways. Thus we limit this test to one way (normal).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0614e74ddd17d0a498d081bb3533cec2a2093c1c" style="color: #1068bf; text-decoration: none;">0614e74d</a></strong>
<div>
<span>by Aaron Allen</span>
<i>at 2022-10-24T17:11:21+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Convert Diagnostics in GHC.Tc.Gen.Splice (#20116)
Replaces uses of `TcRnUnknownMessage` in `GHC.Tc.Gen.Splice` with
structured diagnostics.
closes #20116
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8d2dbe2db4cc7c8b6d39b1ea64b0508304a3273c" style="color: #1068bf; text-decoration: none;">8d2dbe2d</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-10-24T15:59:41-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve stg lint for unboxed sums.
It now properly lints cases where sums end up distributed
over multiple args after unarise.
Fixes #22026.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/41406da55db1915cf1360e3275657f2b1115d530" style="color: #1068bf; text-decoration: none;">41406da5</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-10-25T18:07:03-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix binder-swap bug
This patch fixes #21229 properly, by avoiding doing a
binder-swap on dictionary Ids. This is pretty subtle, and explained
in Note [Care with binder-swap on dictionaries].
Test is already in simplCore/should_run/T21229
This allows us to restore a feature to the specialiser that we had
to revert: see Note [Specialising polymorphic dictionaries].
(This is done in a separate patch.)
I also modularised things, using a new function scrutBinderSwap_maybe
in all the places where we are (effectively) doing a binder-swap,
notably
* Simplify.Iteration.addAltUnfoldings
* SpecConstr.extendCaseBndrs
In Simplify.Iteration.addAltUnfoldings I also eliminated a guard
Many <- idMult case_bndr
because we concluded, in #22123, that it was doing no good.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5a997e16cb2079c52f980d59af3de176922fa320" style="color: #1068bf; text-decoration: none;">5a997e16</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-10-25T18:07:03-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make the specialiser handle polymorphic specialisation
Ticket #13873 unexpectedly showed that a SPECIALISE pragma made a
program run (a lot) slower, because less specialisation took place
overall. It turned out that the specialiser was missing opportunities
because of quantified type variables.
It was quite easy to fix. The story is given in
Note [Specialising polymorphic dictionaries]
Two other minor fixes in the specialiser
* There is no benefit in specialising data constructor /wrappers/.
(They can appear overloaded because they are given a dictionary
to store in the constructor.) Small guard in canSpecImport.
* There was a buglet in the UnspecArg case of specHeader, in the
case where there is a dead binder. We need a LitRubbish filler
for the specUnfolding stuff. I expanded
Note [Drop dead args from specialisations] to explain.
There is a 4% increase in compile time for T15164, because we generate
more specialised code. This seems OK.
Metric Increase:
T15164
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f203d00edd639d24af2cf5970e771207adc2bc6" style="color: #1068bf; text-decoration: none;">7f203d00</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-10-25T18:07:43-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Numeric exceptions: replace FFI calls with primops
ghc-bignum needs a way to raise numerical exceptions defined in base
package. At the time we used FFI calls into primops defined in the RTS.
These FFI calls had to be wrapped into hacky bottoming functions because
"foreign import prim" syntax doesn't support giving a bottoming demand
to the foreign call (cf #16929).
These hacky wrapper functions trip up the JavaScript backend (#21078)
because they are polymorphic in their return type. This commit
replaces them with primops very similar to raise# but raising predefined
exceptions.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0988a23d21110f4351eb9879dcab1b035d4e92c6" style="color: #1068bf; text-decoration: none;">0988a23d</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-10-25T18:08:24-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Enable popcount rewrite rule when cross-compiling
The comment applies only when host's word size < target's word size.
So we can relax the guard.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a2f53ac8d968723417baadfab5be36a020ea6850" style="color: #1068bf; text-decoration: none;">a2f53ac8</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-10-25T18:09:05-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add GHC.SysTools.Cpp module
Move doCpp out of the driver to be able to use it in the upcoming JS backend.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1fd7f201a5afb9e8a26099da5ec86016bb487c92" style="color: #1068bf; text-decoration: none;">1fd7f201</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-10-25T18:09:42-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>llvm-targets: Add datalayouts for big-endian AArch64 targets
Fixes #22311.
Thanks to @zeldin for the patch.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f5a486eb3233b0e577333f04d2087d0f6741af87" style="color: #1068bf; text-decoration: none;">f5a486eb</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-10-25T18:10:19-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Cleanup String/FastString conversions
Remove unused mkPtrString and isUnderscoreFS.
We no longer use mkPtrString since 1d03d8bef96.
Remove unnecessary conversions between FastString and String and back.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f7bfb40c9010ff34d301c9cf8c805261699daad5" style="color: #1068bf; text-decoration: none;">f7bfb40c</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2022-10-26T00:01:24-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Broaden the in-scope sets for liftEnvSubst and composeTCvSubst
This patch fixes two distinct (but closely related) buglets that were uncovered
in #22235:
* `liftEnvSubst` used an empty in-scope set, which was not wide enough to cover
the variables in the range of the substitution. This patch fixes this by
populating the in-scope set from the free variables in the range of the
substitution.
* `composeTCvSubst` applied the first substitution argument to the range of the
second substitution argument, but the first substitution's in-scope set was
not wide enough to cover the range of the second substutition. We similarly
fix this issue in this patch by widening the first substitution's in-scope set
before applying it.
Fixes #22235.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0270cc54481bef9630274e77c2750940c1a4eff5" style="color: #1068bf; text-decoration: none;">0270cc54</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2022-10-26T00:02:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Introduce TcRnWithHsDocContext (#22346)
Before this patch, GHC used withHsDocContext to attach an HsDocContext
to an error message:
addErr $ mkTcRnUnknownMessage $ mkPlainError noHints (withHsDocContext ctxt msg)
The problem with this approach is that it only works with
TcRnUnknownMessage. But could we attach an HsDocContext to a
structured error message in a generic way? This patch solves
the problem by introducing a new constructor to TcRnMessage:
data TcRnMessage where
...
TcRnWithHsDocContext :: !HsDocContext -> !TcRnMessage -> TcRnMessage
...
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9ab31f42da8796363187e387c4085e8c9197f4e5" style="color: #1068bf; text-decoration: none;">9ab31f42</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2022-10-26T09:32:20+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Testsuite: more precise test options
Necessary for newer cross-compiling backends (JS, Wasm) that don't
support TH yet.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f60a1a62bf88ec787a5b5d1725129a24b6b81f4a" style="color: #1068bf; text-decoration: none;">f60a1a62</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2022-10-26T12:17:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use TcRnVDQInTermType in noNestedForallsContextsErr (#20115)
When faced with VDQ in the type of a term, GHC generates the following
error message:
Illegal visible, dependent quantification in the type of a term
(GHC does not yet support this)
Prior to this patch, there were two ways this message could have been
generated and represented:
1. with the dedicated constructor TcRnVDQInTermType
(see check_type in GHC.Tc.Validity)
2. with the transitional constructor TcRnUnknownMessage
(see noNestedForallsContextsErr in GHC.Rename.Utils)
Not only this led to duplication of code generating the final SDoc,
it also made it tricky to track the origin of the error message.
This patch fixes the problem by using TcRnVDQInTermType exclusively.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/223e159d7af546a7176eef073e6e599b3c261c9c" style="color: #1068bf; text-decoration: none;">223e159d</a></strong>
<div>
<span>by Owen Shepherd</span>
<i>at 2022-10-27T13:54:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove source location information from interface files
This change aims to minimize source location information leaking
into interface files, which makes ABI hashes dependent on the
build location.
The `Binary (Located a)` instance has been removed completely.
It seems that the HIE interface still needs the ability to
serialize SrcSpans, but by wrapping the instances, it should
be a lot more difficult to inadvertently add source location
information.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/22e3deb9e99606ade188c12a2a6679a462e81aa0" style="color: #1068bf; text-decoration: none;">22e3deb9</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-10-27T13:55:37-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add missing dict binds to specialiser
I had forgotten to add the auxiliary dict bindings to the
/unfolding/ of a specialised function. This caused #22358,
which reports failures when compiling Hackage packages
fixed-vector
indexed-traversable
Regression test T22357 is snarfed from indexed-traversable
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a8ed36f9583a7936afc066d8bec20b41ef3a3d1a" style="color: #1068bf; text-decoration: none;">a8ed36f9</a></strong>
<div>
<span>by Evan Relf</span>
<i>at 2022-10-27T13:56:36-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix broken link to `async` package
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/750846cd2c51613d2bbd0029a304d07fae2c2972" style="color: #1068bf; text-decoration: none;">750846cd</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-10-28T00:49:22-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Pass correct package db when testing stage1.
It used to pick the db for stage-2 which obviously didn't work.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ad612f555821a44260e5d9654f940b71f5180817" style="color: #1068bf; text-decoration: none;">ad612f55</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-10-28T00:50:00-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Minor SDoc-related cleanup
* Rename pprCLabel to pprCLabelStyle, and use the name pprCLabel
for a function using CStyle (analogous to pprAsmLabel)
* Move LabelStyle to the CLabel module, it no longer needs to be in Outputable.
* Move calls to 'text' right next to literals, to make sure the text/str
rule is triggered.
* Remove FastString/String roundtrip in Tc.Deriv.Generate
* Introduce showSDocForUser', which abstracts over a pattern in
GHCi.UI
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c2872f3f646b76fae940ca77d46555784846a21a" style="color: #1068bf; text-decoration: none;">c2872f3f</a></strong>
<div>
<span>by Bryan Richter</span>
<i>at 2022-10-28T11:36:34+03:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CI: Don't run lint-submods on nightly
Fixes #22325
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/270037faa124bf59dda8ba4f3d73b97d4c109a5f" style="color: #1068bf; text-decoration: none;">270037fa</a></strong>
<div>
<span>by Hécate Moonlight</span>
<i>at 2022-10-28T19:46:12-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Start the deprecation process for GHC.Pack
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d45d8cb3d9bce11729b840bc96ec4616f559809e" style="color: #1068bf; text-decoration: none;">d45d8cb3</a></strong>
<div>
<span>by M Farkas-Dyck</span>
<i>at 2022-11-01T12:47:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Drop a kludge for binutils<2.17, which is now over 10 years old.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8ee8b41805a886cb839c02a5da23b9a8a404003a" style="color: #1068bf; text-decoration: none;">8ee8b418</a></strong>
<div>
<span>by Nicolas Trangez</span>
<i>at 2022-11-01T12:47:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: `name` argument of `createOSThread` can be `const`
Since we don't intend to ever change the incoming string, declare this
to be true.
Also, in the POSIX implementation, the argument is no longer `STG_UNUSED`
(since ee0deb8054da2a597fc5624469b4c44fd769ada2) in any code path.
See: https://gitlab.haskell.org/ghc/ghc/-/commit/ee0deb8054da2a597fc5624469b4c44fd769ada2#note_460080
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/13b5f102b3049e177220bd6d867a33d5c8864b12" style="color: #1068bf; text-decoration: none;">13b5f102</a></strong>
<div>
<span>by Nicolas Trangez</span>
<i>at 2022-11-01T12:47:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: fix lifetime of `start_thread`s `name` value
Since, unlike the code in ee0deb8054da2^, usage of the `name` value
passed to `createOSThread` now outlives said function's lifetime, and
could hence be released by the caller by the time the new thread runs
`start_thread`, it needs to be copied.
See: https://gitlab.haskell.org/ghc/ghc/-/commit/ee0deb8054da2a597fc5624469b4c44fd769ada2#note_460080
See: https://gitlab.haskell.org/ghc/ghc/-/merge_requests/9066
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/edd175c9f9f2988e2836fc3bdc70d627f0f0c5cf" style="color: #1068bf; text-decoration: none;">edd175c9</a></strong>
<div>
<span>by Nicolas Trangez</span>
<i>at 2022-11-01T12:47:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: fix OS thread naming in ticker
Since ee0deb805, the use of `pthread_setname_np` on Darwin was fixed
when invoking `createOSThread`. However, the 'ticker' has some
thread-creation code which doesn't rely on `createOSThread`, yet also
uses `pthread_setname_np`.
This patch enforces all thread creation to go through a single
function, which uses the (correct) thread-naming code introduced in
ee0deb805.
See: https://gitlab.haskell.org/ghc/ghc/-/commit/ee0deb8054da2a597fc5624469b4c44fd769ada2
See: https://gitlab.haskell.org/ghc/ghc/-/issues/22206
See: https://gitlab.haskell.org/ghc/ghc/-/merge_requests/9066
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b7a001132202e1ebf03dd21c6c7b4cd7a24df501" style="color: #1068bf; text-decoration: none;">b7a00113</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-11-01T12:48:35-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Typo: rename -fwrite-if-simplfied-core to -fwrite-if-simplified-core
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/30e625e6d4bdd15960edce8ecc40b85ce3d72b28" style="color: #1068bf; text-decoration: none;">30e625e6</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2022-11-01T12:49:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ThToHs: fix overzealous parenthesization
Before this patch, when converting from TH.Exp to LHsExpr GhcPs,
the compiler inserted more parentheses than required:
((f a) (b + c)) d
This was happening because the LHS of the function application was
parenthesized as if it was the RHS.
Now we use funPrec and appPrec appropriately and produce sensibly
parenthesized expressions:
f a (b + c) d
I also took the opportunity to remove the special case for LamE,
which was not special at all and simply duplicated code.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0560821f637fa2a4318fb068a969f4802acb5a89" style="color: #1068bf; text-decoration: none;">0560821f</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-11-01T12:49:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add accurate skolem info when quantifying
Ticket #22379 revealed that skolemiseQuantifiedTyVar was
dropping the passed-in skol_info on the floor when it encountered
a SkolemTv. Bad! Several TyCons thereby share a single SkolemInfo
on their binders, which lead to bogus error reports.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/38d19668aa60edee495008be84072c15a038dc05" style="color: #1068bf; text-decoration: none;">38d19668</a></strong>
<div>
<span>by Fendor</span>
<i>at 2022-11-01T12:50:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Expose UnitEnvGraphKey for user-code
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/77e2490218aa8dff160b0638ee758fa61d7932f9" style="color: #1068bf; text-decoration: none;">77e24902</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-11-01T12:51:00-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Shrink test case for #22357
Ryan Scott offered a cut-down repro case
(60 lines instead of more than 700 lines)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4521f6498d09f48a775a028efdd763c874da3451" style="color: #1068bf; text-decoration: none;">4521f649</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-11-01T12:51:00-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add two tests for #17366
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6b400d264647207d3217fd5af45a4b20c4d402d4" style="color: #1068bf; text-decoration: none;">6b400d26</a></strong>
<div>
<span>by Nicolas Trangez</span>
<i>at 2022-11-02T12:06:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: introduce (and use) `STG_NORETURN`
Instead of sprinkling the codebase with
`GNU(C3)_ATTRIBUTE(__noreturn__)`, add a `STG_NORETURN` macro (for,
basically, the same thing) similar to `STG_UNUSED` and others, and
update the code to use this macro where applicable.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f963865452187eb7637fddcdfcd2f506ff1f34cf" style="color: #1068bf; text-decoration: none;">f9638654</a></strong>
<div>
<span>by Nicolas Trangez</span>
<i>at 2022-11-02T12:06:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: consistently use `STG_UNUSED`
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/81a5843333c9121b055b13907794a8afe24cd747" style="color: #1068bf; text-decoration: none;">81a58433</a></strong>
<div>
<span>by Nicolas Trangez</span>
<i>at 2022-11-02T12:06:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: introduce (and use) `STG_USED`
Similar to `STG_UNUSED`, have a specific macro for
`__attribute__(used)`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/41e1f748171fe3f06f2fb85a5e26541491308d4e" style="color: #1068bf; text-decoration: none;">41e1f748</a></strong>
<div>
<span>by Nicolas Trangez</span>
<i>at 2022-11-02T12:06:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: introduce (and use) `STG_MALLOC`
Instead of using `GNUC3_ATTRIBUTE(__malloc__)`, provide a `STG_MALLOC`
macro definition and use it instead.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3a9a8bdee0103b33e314bfaebbddf8dc732e8643" style="color: #1068bf; text-decoration: none;">3a9a8bde</a></strong>
<div>
<span>by Nicolas Trangez</span>
<i>at 2022-11-02T12:06:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: use `STG_UNUSED`
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9ab999de7ab22dcb4e32825582203d99ce536f55" style="color: #1068bf; text-decoration: none;">9ab999de</a></strong>
<div>
<span>by Nicolas Trangez</span>
<i>at 2022-11-02T12:06:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: specify deallocator of allocating functions
This patch adds a new `STG_MALLOC1` macro (and its counterpart
`STG_MALLOC2` for completeness) which allows to specify the deallocation
function to be used with allocations of allocating functions, and
applies it to `stg*allocBytes`.
It also fixes a case where `free` was used to free up an
`stgMallocBytes` allocation, found by the above change.
See: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-malloc-function-attribute
See: https://gitlab.haskell.org/ghc/ghc/-/issues/22381
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/81c0c7c94a58d7ed5634abbb002ef88ef903e218" style="color: #1068bf; text-decoration: none;">81c0c7c9</a></strong>
<div>
<span>by Nicolas Trangez</span>
<i>at 2022-11-02T12:06:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: use `alloc_size` attribute
This patch adds the `STG_ALLOC_SIZE1` and `STG_ALLOC_SIZE2` macros which
allow to set the `alloc_size` attribute on functions, when available.
See: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-alloc_005fsize-function-attribute
See: https://gitlab.haskell.org/ghc/ghc/-/issues/22381
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/99a1d896bca1c2e1068646eed50b02314673236c" style="color: #1068bf; text-decoration: none;">99a1d896</a></strong>
<div>
<span>by Nicolas Trangez</span>
<i>at 2022-11-02T12:06:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: add and use `STG_RETURNS_NONNULL`
See: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-returns_005fnonnull-function-attribute
See: https://gitlab.haskell.org/ghc/ghc/-/issues/22381
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c235b399d094af3b706eb5a4bf15712fe5e4f795" style="color: #1068bf; text-decoration: none;">c235b399</a></strong>
<div>
<span>by Nicolas Trangez</span>
<i>at 2022-11-02T12:06:48-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: tag `stgStrndup` as `STG_MALLOC`
See: https://gitlab.haskell.org/ghc/ghc/-/issues/22381
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ed81b44858ef6527087d82c0114ed0b2bf42399d" style="color: #1068bf; text-decoration: none;">ed81b448</a></strong>
<div>
<span>by Oleg Grenrus</span>
<i>at 2022-11-02T12:07:27-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Move Symbol implementation note out of public haddock
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4f7fe1d42843d2256cc94d98e5a49e13d394139e" style="color: #1068bf; text-decoration: none;">4f7fe1d4</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-11-04T17:08:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts/Messages: Refactor
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6c675fb562d14f38bc9e778a3606beba0b5075ae" style="color: #1068bf; text-decoration: none;">6c675fb5</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-11-04T17:08:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Ordering fixes
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/df3ddc5c6809df9a165c0da76d2525334de15236" style="color: #1068bf; text-decoration: none;">df3ddc5c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-11-04T17:08:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>eventlog: Silence spurious data race
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c638a1738794f4acf2556d612e8fca6e8facc4e9" style="color: #1068bf; text-decoration: none;">c638a173</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-11-04T17:08:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Introduce SET_INFO_RELEASE for Cmm
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0127e431d666294520ad06ddb7cb9b3dfd32d8fc" style="color: #1068bf; text-decoration: none;">0127e431</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-11-04T17:08:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add TSAN support in hand-written Cmm
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b22706671e190f8397a0782f071ffd622859d18c" style="color: #1068bf; text-decoration: none;">b2270667</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-11-04T17:08:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Squash data races in blackhole claim logic
Fixes #20128 and #20129.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/25fd6534ddd9e732f649c573d699132cc25bd6d6" style="color: #1068bf; text-decoration: none;">25fd6534</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-11-04T17:08:46-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix barrier ordering
</pre>
</li>
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