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<h3 style="margin-top: 20px; margin-bottom: 10px;">
Ben Gamari pushed to branch wip/telser/docs-extension-status
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/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/de0b4a7d752c6af009ac2a34a14ccef76cc65f4d" style="color: #1068bf; text-decoration: none;">de0b4a7d</a></strong>
<div>
<span>by Trevis Elser</span>
<i>at 2022-08-09T18:32:04+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;'>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>
</ul>
<h4 style="margin-top: 10px; margin-bottom: 10px;">30 changed files:</h4>
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.gitignore
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.gitlab-ci.yml
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.gitlab/ci.sh
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compiler/GHC/Cmm/Expr.hs
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compiler/GHC/Cmm/Info/Build.hs
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compiler/GHC/Cmm/Lint.hs
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compiler/GHC/Cmm/Liveness.hs
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compiler/GHC/Cmm/Node.hs
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compiler/GHC/Cmm/Ppr.hs
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compiler/GHC/Cmm/Ppr/Decl.hs
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compiler/GHC/Cmm/ProcPoint.hs
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compiler/GHC/Cmm/Reg.hs
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compiler/GHC/Cmm/Sink.hs
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