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<h3 style="margin-top: 20px; margin-bottom: 10px;">
John Ericson pushed to branch wip/wither-eq1-and-friends
at <a href="https://gitlab.haskell.org/ghc/ghc" style="color: #1068bf;">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/9939e95fb7b808b68aca00dfabbb99079927f482" style="color: #1068bf;">9939e95f</a></strong>
<div>
<span>by MorrowM</span>
<i>at 2022-08-21T16:51:38-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Recognize file-header pragmas in GHCi (#21507)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fb7c2d99f7df880b00b0d31ee7436c6d8eb3ba15" style="color: #1068bf;">fb7c2d99</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-21T16:52:13-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Fix bootstrapping with ghc-9.4
The error was that we were trying to link together
containers from boot package library (which depends template-haskell in boot package library)
template-haskell from in-tree package database
So the fix is to build containers in stage0 (and link against template-haskell built in stage0).
Fixes #21981
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b946232c328ed88fc34a7c83a335b2f5a4f777ed" style="color: #1068bf;">b946232c</a></strong>
<div>
<span>by Mario Blažević</span>
<i>at 2022-08-22T22:06:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Added pprType with precedence argument, as a prerequisite to fix issues #21723 and #21942.
* refines the precedence levels, adding `qualPrec` and `funPrec` to better control parenthesization
* `pprParendType`, `pprFunArgType`, and `instance Ppr Type` all just call `pprType` with proper precedence
* `ParensT` constructor is now always printed parenthesized
* adds the precedence argument to `pprTyApp` as well, as it needs to keep track and pass it down
* using `>=` instead of former `>` to match the Core type printing logic
* some test outputs have changed, losing extraneous parentheses
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fe4ff0f7cd50361cade3dd4bef15065dff075bfc" style="color: #1068bf;">fe4ff0f7</a></strong>
<div>
<span>by Mario Blažević</span>
<i>at 2022-08-22T22:06:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix and test for issue #21723
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/33968354176dcf68d4dbd717d2a0d77474edc302" style="color: #1068bf;">33968354</a></strong>
<div>
<span>by Mario Blažević</span>
<i>at 2022-08-22T22:06:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Test for issue #21942
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c96552517acc55ba307add250d499d97dc203677" style="color: #1068bf;">c9655251</a></strong>
<div>
<span>by Mario Blažević</span>
<i>at 2022-08-22T22:06:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Updated the changelog
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/80102356468d87b683d5360a291c44b057a52ade" style="color: #1068bf;">80102356</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-22T22:06:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Don't duplicate binaries on installation
Previously we used `install` on symbolic links, which ended up
copying the target file rather than installing a symbolic link.
Fixes #22062.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b929063ec5473fc36fe3976ff0eb8064a2d2fc3d" style="color: #1068bf;">b929063e</a></strong>
<div>
<span>by M Farkas-Dyck</span>
<i>at 2022-08-24T02:37:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Unbreak Haddock comments in `GHC.Core.Opt.WorkWrap.Utils`.
Closes #22092.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/112e4f9c9c299b460e37a60d8f8d8693aa6ab06a" style="color: #1068bf;">112e4f9c</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-08-24T02:37:38-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>driver: don't actually merge objects when ar -L works
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a9f0e68ede36ad571d32e66a8e49e8c9f3b6a92b" style="color: #1068bf;">a9f0e68e</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-24T02:38:13-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: Consistently use MiB in stats output
Previously we would say `MB` even where we
meant `MiB`.</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a90298cc7291677fddd9e374e222676306265c17" style="color: #1068bf;">a90298cc</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-08-25T08:38:16+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix arityType: -fpedantic-bottoms, join points, etc
This MR fixes #21694, #21755. It also makes sure that #21948 and
fix to #21694.
* For #21694 the underlying problem was that we were calling arityType
on an expression that had free join points. This is a Bad Bad Idea.
See Note [No free join points in arityType].
* To make "no free join points in arityType" work out I had to avoid
trying to use eta-expansion for runRW#. This entailed a few changes
in the Simplifier's treatment of runRW#. See
GHC.Core.Opt.Simplify.Iteration Note [No eta-expansion in runRW#]
* I also made andArityType work correctly with -fpedantic-bottoms;
see Note [Combining case branches: andWithTail].
* Rewrote Note [Combining case branches: optimistic one-shot-ness]
* arityType previously treated join points differently to other
let-bindings. This patch makes them unform; arityType analyses
the RHS of all bindings to get its ArityType, and extends am_sigs.
I realised that, now we have am_sigs giving the ArityType for
let-bound Ids, we don't need the (pre-dating) special code in
arityType for join points. But instead we need to extend the env for
Rec bindings, which weren't doing before. More uniform now. See
Note [arityType for let-bindings].
This meant we could get rid of ae_joins, and in fact get rid of
EtaExpandArity altogether. Simpler.
* And finally, it was the strange treatment of join-point Ids in
arityType (involving a fake ABot type) that led to a serious bug:
#21755. Fixed by this refactoring, which treats them uniformly;
but without breaking #18328.
In fact, the arity for recursive join bindings is pretty tricky;
see the long Note [Arity for recursive join bindings]
in GHC.Core.Opt.Simplify.Utils. That led to more refactoring,
including deciding that an Id could have an Arity that is bigger
than its JoinArity; see Note [Invariants on join points], item
2(b) in GHC.Core
* Make sure that the "demand threshold" for join points in DmdAnal
is no bigger than the join-arity. In GHC.Core.Opt.DmdAnal see
Note [Demand signatures are computed for a threshold arity based on idArity]
* I moved GHC.Core.Utils.exprIsDeadEnd into GHC.Core.Opt.Arity,
where it more properly belongs.
* Remove an old, redundant hack in FloatOut. The old Note was
Note [Bottoming floats: eta expansion] in GHC.Core.Opt.SetLevels.
Compile time improves very slightly on average:
Metrics: compile_time/bytes allocated
---------------------------------------------------------------------------------------
T18223(normal) ghc/alloc 725,808,720 747,839,216 +3.0% BAD
T6048(optasm) ghc/alloc 105,006,104 101,599,472 -3.2% GOOD
geo. mean -0.2%
minimum -3.2%
maximum +3.0%
For some reason Windows was better
T10421(normal) ghc/alloc 125,888,360 124,129,168 -1.4% GOOD
T18140(normal) ghc/alloc 85,974,520 83,884,224 -2.4% GOOD
T18698b(normal) ghc/alloc 236,764,568 234,077,288 -1.1% GOOD
T18923(normal) ghc/alloc 75,660,528 73,994,512 -2.2% GOOD
T6048(optasm) ghc/alloc 112,232,512 108,182,520 -3.6% GOOD
geo. mean -0.6%
I had a quick look at T18223 but it is knee deep in coercions and
the size of everything looks similar before and after. I decided
to accept that 3% increase in exchange for goodness elsewhere.
Metric Decrease:
T10421
T18140
T18698b
T18923
T6048
Metric Increase:
T18223
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/909edcfccae6664702384f83b1b5840eb3dc0a10" style="color: #1068bf;">909edcfc</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-25T10:03:34-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>upload_ghc_libs: Add means of passing Hackage credentials
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/28402eed1bd0ec27d1dd5b663304a741de0ce2c3" style="color: #1068bf;">28402eed</a></strong>
<div>
<span>by M Farkas-Dyck</span>
<i>at 2022-08-25T10:04:17-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Scrub some partiality in `CommonBlockElim`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/54affbfa2d3bb550d0a991518d6e7f9a4e51e91f" style="color: #1068bf;">54affbfa</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-25T20:05:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Fix whitespace
Previously this region of Settings.Packages was incorrectly indented.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c4bba0f0a158b8bc5ea7e715215b63a902ae4b1c" style="color: #1068bf;">c4bba0f0</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-25T20:05:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>validate: Drop --legacy flag
In preparation for removal of the legacy `make`-based build system.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/822b0302f3406bb5e916d72c36566322ba900e76" style="color: #1068bf;">822b0302</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-25T20:05:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Drop make build validation jobs
In preparation for removal of the `make`-based build system
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6fd9b0a1c6b076ef1977db1a2ce8b9505b9a3254" style="color: #1068bf;">6fd9b0a1</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-25T20:05:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Drop make build system
Here we at long last remove the `make`-based build system, it having
been replaced with the Shake-based Hadrian build system. Users are
encouraged to refer to the documentation in `hadrian/doc` and this [1]
blog post for details on using Hadrian.
Closes #17527.
[1] https://www.haskell.org/ghc/blog/20220805-make-to-hadrian.html
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dbb004b0661e5cd34918d8efa1f66ef6cd22ed0a" style="color: #1068bf;">dbb004b0</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-25T20:05:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove testsuite/tests/perf/haddock/.gitignore
As noted in #16802, this is no longer needed.
Closes #16802.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fe9d824d87d3caa28f16b06602d62ba59eb3b44e" style="color: #1068bf;">fe9d824d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-25T20:05:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Drop hc-build script
This has not worked for many, many years and relied on the now-removed
`make`-based build system.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/659502bc4f78ccba1b35d06eeaa934f2614f1706" style="color: #1068bf;">659502bc</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-25T20:05:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Drop mkdirhier
This is only used by nofib's dead `dist` target
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4a426924578c1febe8a5d34c7a265223ba8031df" style="color: #1068bf;">4a426924</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-25T20:05:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Drop mk/{build,install,config}.mk.in
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/46924b75c78c2fcb92cba91796bc22986c796ed3" style="color: #1068bf;">46924b75</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-25T20:05:31-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>compiler: Drop comment references to make
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d387f687930e4d44c1ef569b4ec8091cb8b92765" style="color: #1068bf;">d387f687</a></strong>
<div>
<span>by Harry Garrood</span>
<i>at 2022-08-25T20:06:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add inits1 and tails1 to Data.List.NonEmpty
See https://github.com/haskell/core-libraries-committee/issues/67
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8603c92113c49557f8632675a01f3b3874b819d1" style="color: #1068bf;">8603c921</a></strong>
<div>
<span>by Harry Garrood</span>
<i>at 2022-08-25T20:06:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add since annotations and changelog entries
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6b47aa1cc87426db4fe7d805af69894de05780ff" style="color: #1068bf;">6b47aa1c</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-08-25T20:06:46-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix redundant import
This fixes a build error on x86_64-linux-alpine3_12-validate.
See the function 'loadExternalPlugins' defined in this file.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4786acf758ef064d3b79593774d1672e294b0afb" style="color: #1068bf;">4786acf7</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-08-26T15:05:23-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Pmc: consider any 2 dicts of the same type equal
This patch massages the keys used in the `TmOracle` `CoreMap` to ensure
that dictionaries of coherent classes give the same key.
That is, whenever we have an expression we want to insert or lookup in
the `TmOracle` `CoreMap`, we first replace any dictionary
`$dict_abcd :: ct` with a value of the form `error @ct`.
This allows us to common-up view pattern functions with required
constraints whose arguments differed only in the uniques of the
dictionaries they were provided, thus fixing #21662.
This is a rather ad-hoc change to the keys used in the
`TmOracle` `CoreMap`. In the long run, we would probably want to use
a different representation for the keys instead of simply using
`CoreExpr` as-is. This more ambitious plan is outlined in #19272.
Fixes #21662
Updates unix submodule
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f5e0f086a43c4e830f3fec343917daf3cc24b73a" style="color: #1068bf;">f5e0f086</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-08-26T15:06:01-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove label style from printing context
Previously, the SDocContext used for code generation contained
information whether the labels should use Asm or C style.
However, at every individual call site, this is known statically.
This removes the parameter to 'PprCode' and replaces every 'pdoc'
used to print a label in code style with 'pprCLabel' or 'pprAsmLabel'.
The OutputableP instance is now used only for dumps.
The output of T15155 changes, it now uses the Asm style
(which is faithful to what actually happens).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1007829bfb18708dda77b4eb6106fce9cb05f908" style="color: #1068bf;">1007829b</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-08-26T15:06:40-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>boot: cleanup legacy args
Cleanup legacy boot script args, following removal of the legacy make
build system.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/95fe09da09b386008fd730abc5374f3521dd339b" style="color: #1068bf;">95fe09da</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-08-27T00:29:02-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Improve SpecConstr for evals
As #21763 showed, we were over-specialising in some cases, when
the function involved was doing a simple 'eval', but not taking
the value apart, or branching on it.
This MR fixes the problem. See Note [Do not specialise evals].
Nofib barely budges, except that spectral/cichelli allocates about
3% less.
Compiler bytes-allocated improves a bit
geo. mean -0.1%
minimum -0.5%
maximum +0.0%
The -0.5% is on T11303b, for what it's worth.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/565a8ec8fb29062827edc6999ac8dc72494ddd07" style="color: #1068bf;">565a8ec8</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-27T00:29:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Revert "Revert "Refactor SpecConstr to use treat bindings uniformly""
This reverts commit 851d8dd89a7955864b66a3da8b25f1dd88a503f8.
This commit was originally reverted due to an increase in space usage.
This was diagnosed as because the SCE increased in size and that was
being retained by another leak. See #22102
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/82ce1654567b24fbbd611ab20b5188291fd3f830" style="color: #1068bf;">82ce1654</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-27T00:29:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Avoid retaining bindings via ModGuts held on the stack
It's better to overwrite the bindings fields of the ModGuts before
starting an iteration as then all the old bindings can be collected as
soon as the simplifier has processed them. Otherwise we end up with the
old bindings being alive until right at the end of the simplifier pass
as the mg_binds field is only modified right at the end.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/64779dcd734a69ab38fba1e7542896c168d7bbce" style="color: #1068bf;">64779dcd</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-27T00:29:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Force imposs_deflt_cons in filterAlts
This fixes a pretty serious space leak as the forced thunk would retain
`Alt b` values which would then contain reference to a lot of old
bindings and other simplifier gunk.
The OtherCon unfolding was not forced on subsequent simplifier runs so
more and more old stuff would be retained until the end of
simplification.
Fixing this has a drastic effect on maximum residency for the mmark
package which goes from
```
45,005,401,056 bytes allocated in the heap
17,227,721,856 bytes copied during GC
818,281,720 bytes maximum residency (33 sample(s))
9,659,144 bytes maximum slop
2245 MiB total memory in use (0 MB lost due to fragmentation)
```
to
```
45,039,453,304 bytes allocated in the heap
13,128,181,400 bytes copied during GC
331,546,608 bytes maximum residency (40 sample(s))
7,471,120 bytes maximum slop
916 MiB total memory in use (0 MB lost due to fragmentation)
```
See #21993 for some more discussion.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a3b23a3318a556beba62a3637600692639575c44" style="color: #1068bf;">a3b23a33</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-27T00:29:39-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use Solo to avoid retaining the SCE but to avoid performing the substitution
The use of Solo here allows us to force the selection into the SCE to obtain
the Subst but without forcing the substitution to be applied. The resulting thunk
is placed into a lazy field which is rarely forced, so forcing it regresses
peformance.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/161a6f1fd62e797e978e7808a5f567fefa123f16" style="color: #1068bf;">161a6f1f</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-08-27T00:30:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix a nasty loop in Tidy
As the remarkably-simple #22112 showed, we were making a black hole
in the unfolding of a self-recursive binding. Boo!
It's a bit tricky. Documented in GHC.Iface.Tidy,
Note [tidyTopUnfolding: avoiding black holes]
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/68e6786f3d1bde5d044a649462cdf2b6034a2df8" style="color: #1068bf;">68e6786f</a></strong>
<div>
<span>by Giles Anderson</span>
<i>at 2022-08-29T00:01:35+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Use TcRnDiagnostic in GHC.Tc.TyCl.Class (#20117)
The following `TcRnDiagnostic` messages have been introduced:
TcRnIllegalHsigDefaultMethods
TcRnBadGenericMethod
TcRnWarningMinimalDefIncomplete
TcRnDefaultMethodForPragmaLacksBinding
TcRnIgnoreSpecialisePragmaOnDefMethod
TcRnBadMethodErr
TcRnNoExplicitAssocTypeOrDefaultDeclaration
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cbe51ac5e0bbe2667b6c7204ae62a534a9bc7c95" style="color: #1068bf;">cbe51ac5</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-08-29T04:18:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix a bug in anyInRnEnvR
This bug was a subtle error in anyInRnEnvR, introduced by
commit d4d3fe6e02c0eb2117dbbc9df72ae394edf50f06
Author: Andreas Klebinger <klebinger.andreas@gmx.at>
Date: Sat Jul 9 01:19:52 2022 +0200
Rule matching: Don't compute the FVs if we don't look at them.
The net result was #22028, where a rewrite rule would wrongly
match on a lambda.
The fix to that function is easy.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0154bc80b3648af15ef431cf0cf99e3cbbd881f6" style="color: #1068bf;">0154bc80</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-08-30T06:05:41-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Various Hadrian bootstrapping fixes
- Don't always produce a distribution archive (#21629)
- Use correct executable names for ghc-pkg and hsc2hs on windows
(we were missing the .exe file extension)
- Fix a bug where we weren't using the right archive format on Windows
when unpacking the bootstrap sources.
Fixes #21629
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/451b1d90cf14e8fb3f12b1b65d8027717093556a" style="color: #1068bf;">451b1d90</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-30T06:06:16-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: Attempt using normal submodule cloning strategy
We do not use any recursively cloned submodules, and this protects us
from flaky upstream remotes.
Fixes #22121
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9d5ad7c4bb1bd2b450fa13afcf95e3370c53232d" style="color: #1068bf;">9d5ad7c4</a></strong>
<div>
<span>by Pi Delport</span>
<i>at 2022-08-30T22:40:46+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix typo in Any docs: stray "--"
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3a00263248e6176e06f03b7390fade48a9adb373" style="color: #1068bf;">3a002632</a></strong>
<div>
<span>by Pi Delport</span>
<i>at 2022-08-30T22:40:46+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix typo in Any docs: syntatic -> syntactic
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f490b1333c17ed27b213d6af8c7275aa9b3de63" style="color: #1068bf;">7f490b13</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2022-08-31T03:53:54-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add a missing trimArityType
This buglet was exposed by #22114, a consequence of my earlier
refactoring of arity for join points.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e6fc820f0bfa75ffa1bdb417530158d1b090157c" style="color: #1068bf;">e6fc820f</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-31T13:16:01+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump binary submodule to 0.8.9.1
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4c1e7b22a25f427b489552275aaa222c71e6ef43" style="color: #1068bf;">4c1e7b22</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-31T13:16:01+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump stm submodule to 2.5.1.0
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/837472b4895232c9ef06949b0c2af4dbac96744c" style="color: #1068bf;">837472b4</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-31T13:16:01+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>users-guide: Document system-cxx-std-lib
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f7a9947a93d021e6e1f0a04adf787db4d66b1ae5" style="color: #1068bf;">f7a9947a</a></strong>
<div>
<span>by Douglas Wilson</span>
<i>at 2022-08-31T13:16:01+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update submodule containers to 0.6.6
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4ab1c2ca4b6d43a6f70430225b00a61ce9fe1c39" style="color: #1068bf;">4ab1c2ca</a></strong>
<div>
<span>by Douglas Wilson</span>
<i>at 2022-08-31T13:16:02+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update submodule process to 1.6.15.0
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1309ea1e20712c49977ce69d6e1f6081572185cb" style="color: #1068bf;">1309ea1e</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-31T13:16:02+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump directory submodule to 1.3.7.1
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7962a33a6b1fb941f76a4cb9a9ad1ec237e9cb33" style="color: #1068bf;">7962a33a</a></strong>
<div>
<span>by Douglas Wilson</span>
<i>at 2022-08-31T13:16:02+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump text submodule to 2.0.1
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fd8d80c351a4d4782b879f40ef6dda21894368b9" style="color: #1068bf;">fd8d80c3</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-31T13:26:52+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump deepseq submodule to 1.4.8.0
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a9baafacc0c7a5440139d475b854f40325e478cb" style="color: #1068bf;">a9baafac</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-31T13:26:52+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add dates to base, ghc-prim changelogs
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2cee323cb05bff6216f54d7a6cccc408f34366cc" style="color: #1068bf;">2cee323c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-31T13:26:52+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update autoconf scripts
Scripts taken from autoconf 02ba26b218d3d3db6c56e014655faf463cefa983
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e62705ff1976074ec2ce08eaa2af222a00889c65" style="color: #1068bf;">e62705ff</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-08-31T13:26:53+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump bytestring submodule to 0.11.3.1
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f7b4dcbd7d76101e7e6eee728bde2b5a5c873c02" style="color: #1068bf;">f7b4dcbd</a></strong>
<div>
<span>by Douglas Wilson</span>
<i>at 2022-08-31T13:26:53+01:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update submodule Cabal to tag Cabal-v3.8.1.0
closes #21931
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e8eaf8074f78df3f40ecfb9ef94c2077db9c87a1" style="color: #1068bf;">e8eaf807</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-31T18:27:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Refine in-tree compiler args for --test-compiler=stage1
Some of the logic to calculate in-tree arguments was not correct for the
stage1 compiler. Namely we were not correctly reporting whether we were
building static or dynamic executables and whether debug assertions were
enabled.
Fixes #22096
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6b2f7ffea51304091bfa4bd1d88a58ea373ee551" style="color: #1068bf;">6b2f7ffe</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-08-31T18:27:57-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Make ghcDebugAssertions into a Stage predicate (Stage -> Bool)
We also care whether we have debug assertions enabled for a stage one
compiler, but the way which we turned on the assertions was quite
different from the stage2 compiler. This makes the logic for turning on
consistent across both and has the advantage of being able to correct
determine in in-tree args whether a flavour enables assertions or not.
Ticket #22096
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/15111af6adb1c85af5b17088134c9e71bee025e3" style="color: #1068bf;">15111af6</a></strong>
<div>
<span>by Zubin Duggal</span>
<i>at 2022-09-01T01:18:50-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add regression test for #21550
This was fixed by ca90ffa321a31842a32be1b5b6e26743cd677ec5
"Use local instances with least superclass depth"
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7d3a055d4df6842f8fbcfbc1ca96e2a45a47d351" style="color: #1068bf;">7d3a055d</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-09-01T01:19:26-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Minor cleanup
- Remove mkHeteroCoercionType, sdocImpredicativeTypes, isStateType (unused),
isCoVar_maybe (duplicated by getCoVar_maybe)
- Replace a few occurrences of voidPrimId with (# #).
void# is a deprecated synonym for the unboxed tuple.
- Use showSDoc in :show linker.
This makes it consistent with the other :show commands
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/31a8989a1d4aa5fe1e3ed0b2e789145bb64a8ba8" style="color: #1068bf;">31a8989a</a></strong>
<div>
<span>by Tommy Bidne</span>
<i>at 2022-09-01T12:01:20-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Change Ord defaults per CLC proposal
Approved by CLC in https://github.com/haskell/core-libraries-committee/issues/24#issuecomment-1233331267
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7f527f01c8b4b61047fa87905750ee962f527e36" style="color: #1068bf;">7f527f01</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-09-01T12:01:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix bootstrap with ghc-9.0
It turns out Solo is a very recent addition to base, so for older GHC
versions we just defined it inline here the one place we use it in the
compiler.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d2be80fd9b222963e8dd09a30f78c106e00da7f9" style="color: #1068bf;">d2be80fd</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2022-09-05T23:12:14-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>DmdAnal: Don't panic in addCaseBndrDmd (#22039)
Rather conservatively return Top.
See Note [Untyped demand on case-alternative binders].
I also factored `addCaseBndrDmd` into two separate functions `scrutSubDmd` and
`fieldBndrDmds`.
Fixes #22039.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/25f68acedf822e9ea21d1659b1f897fcfc96e5d4" style="color: #1068bf;">25f68ace</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2022-09-05T23:12:50-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>gitlab-ci: Ensure that ghc derivation is in scope
Previously the lint-ci job attempted to use cabal-install (specifically
`cabal update`) without a GHC in PATH. However, cabal-install-3.8
appears to want GHC, even for `cabal update`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f37b621fdeff6922c6ad9533a02ccc26c50f9b2e" style="color: #1068bf;">f37b621f</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-09-06T11:51:53+00:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update instances.rst, clarifying InstanceSigs
Fixes #22103
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d4f908f7dff34c650fd3cf26dbba1d5b66c13dbc" style="color: #1068bf;">d4f908f7</a></strong>
<div>
<span>by Jan Hrček</span>
<i>at 2022-09-06T15:36:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix :add docs in user guide
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/808bb7934e1e3007bf7115bdf75263bba937c85b" style="color: #1068bf;">808bb793</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-06T15:37:35-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: remove unused build_make/test_make in ci script
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d0a2efb2125ef410a7c7725b93987d2b7ea99463" style="color: #1068bf;">d0a2efb2</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-09-07T16:42:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>typo</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fac0098b3e07375030c4320c23c8a6c9200556af" style="color: #1068bf;">fac0098b</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-09-07T16:42:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>typos
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a581186f38a4feb850614b03f452191eaceee14d" style="color: #1068bf;">a581186f</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-09-07T16:42:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>whitespace
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/04a738cb23e82b32caf38b7965f5042e6af6ee88" style="color: #1068bf;">04a738cb</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-07T16:43:22-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CmmToAsm: remove unused ModLocation from NatM_State
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ee1cfaa990205dc96148ed20c2d6560b4808b0b7" style="color: #1068bf;">ee1cfaa9</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-09-07T16:43:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Minor SDoc cleanup
Change calls to renderWithContext with showSDocOneLine; it's more
efficient and explanatory.
Remove polyPatSig (unused)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7918265d53db963bfd3dd529b1063fb844549733" style="color: #1068bf;">7918265d</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-09-07T16:43:58-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove Outputable Char instance
Use 'text' instead of 'ppr'.
Using 'ppr' on the list "hello" rendered as "h,e,l,l,o".
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/77209ab32aee6f58504b303fdea2df69f5a71027" style="color: #1068bf;">77209ab3</a></strong>
<div>
<span>by Georgi Lyubenov</span>
<i>at 2022-09-08T17:14:36+03:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Export liftA2 from Prelude
Changes:
In order to be warning free and compatible, we hide Applicative(..)
from Prelude in a few places and instead import it directly from
Control.Applicative.
Please see the migration guide at
https://github.com/haskell/core-libraries-committee/blob/main/guides/export-lifta2-prelude.md
for more details.
This means that Applicative is now exported in its entirety from
Prelude.
Motivation:
This change is motivated by a few things:
* liftA2 is an often used function, even more so than (<*>) for some
people.
* When implementing Applicative, the compiler will prompt you for either
an implementation of (<*>) or of liftA2, but trying to use the latter
ends with an error, without further imports. This could be confusing
for newbies.
* For teaching, it is often times easier to introduce liftA2 first,
as it is a natural generalisation of fmap.
* This change seems to have been unanimously and enthusiastically
accepted by the CLC members, possibly indicating a lot of love for it.
* This change causes very limited breakage, see the linked issue below
for an investigation on this.
See https://github.com/haskell/core-libraries-committee/issues/50
for the surrounding discussion and more details.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/442a94e8ef886b51c5622102546e34875a3fcc37" style="color: #1068bf;">442a94e8</a></strong>
<div>
<span>by Georgi Lyubenov</span>
<i>at 2022-09-08T17:14:36+03:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add changelog entry for liftA2 export from Prelude
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fb968680c3b0d1cc2ae9f8433dc56f847f8b7d3f" style="color: #1068bf;">fb968680</a></strong>
<div>
<span>by Georgi Lyubenov</span>
<i>at 2022-09-08T17:14:36+03:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump submodule containers to one with liftA2 warnings fixed
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f54ff8183a38a92c0ae4e063bc8bd85a33fdc9ff" style="color: #1068bf;">f54ff818</a></strong>
<div>
<span>by Georgi Lyubenov</span>
<i>at 2022-09-08T17:14:36+03:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Bump submodule Cabal to one with liftA2 warnings fixed
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a4b34808720e93b434b4fcf18db114bc1f0599aa" style="color: #1068bf;">a4b34808</a></strong>
<div>
<span>by Georgi Lyubenov</span>
<i>at 2022-09-08T17:14:36+03:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Isolate some Applicative hidings to GHC.Prelude
By reexporting the entirety of Applicative from GHC.Prelude, we can save
ourselves some `hiding` and importing of `Applicative` in consumers of GHC.Prelude.
This also has the benefit of isolating this type of change to
GHC.Prelude, so that people in the future don't have to think about it.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9c4ea90c6b493eee6df1798c63a6031cc18ae6da" style="color: #1068bf;">9c4ea90c</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-08T17:49:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>CmmToC: enable 64-bit CallishMachOp on 32-bit targets
Normally, the unregisterised builds avoid generating 64-bit
CallishMachOp in StgToCmm, so CmmToC doesn't support these. However,
there do exist cases where we'd like to invoke cmmToC for other cmm
inputs which may contain such CallishMachOps, and it's a rather low
effort to add support for these since they only require calling into
existing ghc-prim cbits.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/04062510806e2a3ccf0ecdb71c704a8e1c548c53" style="color: #1068bf;">04062510</a></strong>
<div>
<span>by Alexis King</span>
<i>at 2022-09-11T11:30:32+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add native delimited continuations to the RTS
This patch implements GHC proposal 313, "Delimited continuation
primops", by adding native support for delimited continuations to the
GHC RTS.
All things considered, the patch is relatively small. It almost
exclusively consists of changes to the RTS; the compiler itself is
essentially unaffected. The primops come with fairly extensive Haddock
documentation, and an overview of the implementation strategy is given
in the Notes in rts/Continuation.c.
This first stab at the implementation prioritizes simplicity over
performance. Most notably, every continuation is always stored as a
single, contiguous chunk of stack. If one of these chunks is
particularly large, it can result in poor performance, as the current
implementation does not attempt to cleverly squeeze a subset of the
stack frames into the existing stack: it must fit all at once. If this
proves to be a performance issue in practice, a cleverer strategy would
be a worthwhile target for future improvements.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ee471dfb8a4a4bb5131a5baa61d1d0d22c933d5f" style="color: #1068bf;">ee471dfb</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-12T07:07:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: fix missing dirty_MVAR argument in stg_writeIOPortzh
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a5f9c35f5831ef5108e87813a96eac62803852ab" style="color: #1068bf;">a5f9c35f</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-12T13:29:05-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: enable parallel compression for xz
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3a815f30bcba5672085e823aeef90863253b0b1a" style="color: #1068bf;">3a815f30</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2022-09-12T13:29:41-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Windows: Always define _UCRT when compiling C code
As seen in #22159, this is required to ensure correct behavior when MinGW-w64
headers are in the `C_INCLUDE_PATH`.
Fixes #22159.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/65a0bd69ac1fb59047cd4c8554a8fc756c7b3476" style="color: #1068bf;">65a0bd69</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-09-13T10:27:52-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add diagnostic codes
This MR adds diagnostic codes, assigning unique numeric codes to
error and warnings, e.g.
error: [GHC-53633]
Pattern match is redundant
This is achieved as follows:
- a type family GhcDiagnosticCode that gives the diagnostic code
for each diagnostic constructor,
- a type family ConRecursInto that specifies whether to recur into
an argument of the constructor to obtain a more fine-grained code
(e.g. different error codes for different 'deriving' errors),
- generics machinery to generate the value-level function assigning
each diagnostic its error code; see Note [Diagnostic codes using generics]
in GHC.Types.Error.Codes.
The upshot is that, to add a new diagnostic code, contributors only need
to modify the two type families mentioned above. All logic relating to
diagnostic codes is thus contained to the GHC.Types.Error.Codes module,
with no code duplication.
This MR also refactors error message datatypes a bit, ensuring we can
derive Generic for them, and cleans up the logic around constraint
solver reports by splitting up 'TcSolverReportInfo' into separate
datatypes (see #20772).
Fixes #21684
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/362cca13858faf7e1158273780ea900e7dad5827" style="color: #1068bf;">362cca13</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-09-13T10:27:53-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Diagnostic codes: acccept test changes
The testsuite output now contains diagnostic codes, so many tests need
to be updated at once.
We decided it was best to keep the diagnostic codes in the testsuite
output, so that contributors don't inadvertently make changes to the
diagnostic codes.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/08f6730cd04ae9cdba30c0e371522ddc9a25b716" style="color: #1068bf;">08f6730c</a></strong>
<div>
<span>by Adam Gundry</span>
<i>at 2022-09-13T10:28:29-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Allow imports to reference multiple fields with the same name (#21625)
If a module `M` exports two fields `f` (using DuplicateRecordFields), we can
still accept
import M (f)
import M hiding (f)
and treat `f` as referencing both of them. This was accepted in GHC 9.0, but gave
rise to an ambiguity error in GHC 9.2. See #21625.
This patch also documents this behaviour in the user's guide, and updates the
test for #16745 which is now treated differently.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c14370d765efb81ead9a80dc5450dc97e3167b6e" style="color: #1068bf;">c14370d7</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-13T10:29:07-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>ci: remove unused appveyor config
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dc6af9ed87e619d754bfc385df931c81cba6d93a" style="color: #1068bf;">dc6af9ed</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-13T10:29:45-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>compiler: remove unused lazy state monad
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/646d15ad8f1119f339998ee8dd79ea96cfd1d165" style="color: #1068bf;">646d15ad</a></strong>
<div>
<span>by Eric Lindblad</span>
<i>at 2022-09-14T03:13:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix typos
This fixes various typos and spelling mistakes
in the compiler.
Fixes #21891
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7d7e71b03f4b2eb693f5ea69dadbccf491e7403f" style="color: #1068bf;">7d7e71b0</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-09-14T03:14:32-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Bump index state
This bumps the index state so a build plan can also be found when
booting with 9.4.
Fixes #22165
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/98b62871581d09fd7f910f011b8309a342af9886" style="color: #1068bf;">98b62871</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-09-14T17:17:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Use a stamp file to record when a package is built in a certain way
Before this patch which library ways we had built wasn't recorded
directly. So you would run into issues if you build the .conf file with
some library ways before switching the library ways which you wanted to
build.
Now there is one stamp file for each way, so in order to build a
specific way you can need that specific stamp file rather than going
indirectly via the .conf file.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b42cedbefb296437014d0768348b740b960943c0" style="color: #1068bf;">b42cedbe</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-09-14T17:17:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Inplace/Final package databases
There are now two different package databases per stage. An inplace
package database contains .conf files which point directly into the
build directories. The final package database contains .conf files which
point into the installed locations. The inplace .conf files are created
before any building happens and have fake ABI hash values. The final
.conf files are created after a package finished building and contains
the proper ABI has.
The motivation for this is to make the dependency structure more
fine-grained when building modules. Now a module depends just depends
directly on M.o from package p rather than the .conf file depend on the
.conf file for package p. So when all of a modules direct dependencies
have finished building we can start building it rather than waiting for
the whole package to finish.
The secondary motivation is that the multi-repl doesn't need to build
everything before starting the multi-repl session. We can just configure
the inplace package-db and use that in order to start the repl.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6515c32b6616645918e7ea95db59b0467df12bfb" style="color: #1068bf;">6515c32b</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-09-14T17:17:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Add some more packages to multi-cradle
The main improvement here is to pass `-this-unit-id` for executables so
that they can be added to the multi-cradle if desired as well as normal
library packages.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e470e91f7dca7c85cc77508b1140a23722702c06" style="color: #1068bf;">e470e91f</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-09-14T17:17:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Need builders needed by Cabal Configure in parallel
Because of the use of withStaged (which needs the necessary builder)
when configuring a package, the builds of stage1:exe:ghc-bin and
stage1:exe:ghc-pkg where being linearised when building a specific
target like `binary-dist-dir`.
Thankfully the fix is quite local, to supply all the `withStaged`
arguments together so the needs can be batched together and hence
performed in parallel.
Fixes #22093
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c4438347db08f113454d716df33bd81773f98411" style="color: #1068bf;">c4438347</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-09-14T17:17:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Remove stage1:exe:ghc-bin pre-build from CI script
CI builds stage1:exe:ghc-bin before the binary-dist target which
introduces some quite bad linearisation (see #22093) because we don't
build stage1 compiler in parallel with anything. Then when the
binary-dist target is started we have to build stage1:exe:ghc-pkg before
doing anything.
Fixes #22094
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/71d8db86d159e3f3f4d1d23c124306cac6448a96" style="color: #1068bf;">71d8db86</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-09-14T17:17:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: Add extra implicit dependencies from DeriveLift
ghc -M should know that modules which use DeriveLift (or
TemplateHaskellQuotes) need TH.Lib.Internal but until it does, we have
to add these extra edges manually or the modules will be compiled before
TH.Lib.Internal is compiled which leads to a desugarer error.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/43e574f04fc2b612356a9805abe60b708b0b32c9" style="color: #1068bf;">43e574f0</a></strong>
<div>
<span>by Greg Steuck</span>
<i>at 2022-09-14T17:17:43-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Repair c++ probing on OpenBSD
Failure without this change:
```
checking C++ standard library flavour... libc++
checking for linkage against 'c++ c++abi'... failed
checking for linkage against 'c++ cxxrt'... failed
configure: error: Failed to find C++ standard library
```
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/534b39ee5c6d0c4f9dc279adcf5a11423279efb8" style="color: #1068bf;">534b39ee</a></strong>
<div>
<span>by Douglas Wilson</span>
<i>at 2022-09-14T17:18:21-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>libraries: template-haskell: vendor filepath differently
Vendoring with ../ in hs-source-dirs prevents upload to hackage.
(cherry picked from commit 1446be7586ba70f9136496f9b67f792955447842)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bdd61cd63dff07a78b1364988b5a140806f79e38" style="color: #1068bf;">bdd61cd6</a></strong>
<div>
<span>by M Farkas-Dyck</span>
<i>at 2022-09-14T22:39:34-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Unbreak Hadrian with Cabal 3.8.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/df04d6ec6a543d8bf1b953cf27c26e63ec6aab25" style="color: #1068bf;">df04d6ec</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2022-09-14T22:40:09-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix typos
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d6ea8356b721ea4c3b871a796c1b2b13f94fd471" style="color: #1068bf;">d6ea8356</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-09-15T10:12:41+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Tag inference: Fix #21954 by retaining tagsigs of vars in function position.
For an expression like:
case x of y
Con z -> z
If we also retain the tag sig for z we can generate code to immediately return
it rather than calling out to stg_ap_0_fast.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7cce70073f5017cf5514f92a900c76e47a4292a5" style="color: #1068bf;">7cce7007</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2022-09-15T10:12:42+02:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Stg.InferTags.Rewrite - Avoid some thunks.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/88c4cbdb7c2f241368c72e05ae295e19ba7c254b" style="color: #1068bf;">88c4cbdb</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-16T13:57:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: enable -fprof-late only for profiling ways
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d7235831724dffdc203b8d87bb4d376546eeb883" style="color: #1068bf;">d7235831</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-16T13:57:56-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: add late_ccs flavour transformer
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ce203753a88406cba95278506bba1b4e6ef169c6" style="color: #1068bf;">ce203753</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-16T13:58:34-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>configure: remove unused program checks
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9b4c1056580df029865346ffcf1aa2fca85cdddc" style="color: #1068bf;">9b4c1056</a></strong>
<div>
<span>by Pierre Le Marre</span>
<i>at 2022-09-16T13:59:16-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Update to Unicode 15.0
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c6e9b89a8ad9bd155748fe177a23c8f4919d308f" style="color: #1068bf;">c6e9b89a</a></strong>
<div>
<span>by Bodigrim</span>
<i>at 2022-09-16T13:59:55-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Avoid partial head and tail in ghc-heap; replace with total pattern-matching
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/616afde3e2c6b733c8a44205a140ec8586853d3c" style="color: #1068bf;">616afde3</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-16T14:00:33-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>hadrian: relax Cabal upper bound to allow building with Cabal-3.8
A follow up of !8910.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/df35d99465d1037b31cbd05aa3380fce6031af73" style="color: #1068bf;">df35d994</a></strong>
<div>
<span>by Alexis King</span>
<i>at 2022-09-16T14:01:11-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add links to the continuations haddocks in the docs for each primop
fixes #22176
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/383f75494a936bbc2f794a788141b103cd482913" style="color: #1068bf;">383f7549</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2022-09-16T21:42:10-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>-Wunused-pattern-binds: Recurse into patterns to check whether there's a splice
See the examples in #22057 which show we have to traverse deeply into a
pattern to determine whether it contains a splice or not. The original
implementation pointed this out but deemed this very shallow traversal
"too expensive".
Fixes #22057
I also fixed an oversight in !7821 which meant we lost a warning which
was present in 9.2.2.
Fixes #22067
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5031bf49793f3470a9fd9036829a08e556584d8a" style="color: #1068bf;">5031bf49</a></strong>
<div>
<span>by sheaf</span>
<i>at 2022-09-16T21:42:49-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Hadrian: Don't try to build terminfo on Windows
Commit b42cedbe introduced a dependency on terminfo on Windows,
but that package isn't available on Windows.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c9afe2216ccabd36e3083ec3b508310fcdb5eae3" style="color: #1068bf;">c9afe221</a></strong>
<div>
<span>by M Farkas-Dyck</span>
<i>at 2022-09-17T06:44:47-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Clean up some. In particular:
• Delete some dead code, largely under `GHC.Utils`.
• Clean up a few definitions in `GHC.Utils.(Misc, Monad)`.
• Clean up `GHC.Types.SrcLoc`.
• Derive stock `Functor, Foldable, Traversable` for more types.
• Derive more instances for newtypes.
Bump haddock submodule.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/85431ac363e77dd0f93d46ff1ed450b4833c2a40" style="color: #1068bf;">85431ac3</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-17T06:45:25-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>driver: pass original Cmm filename in ModLocation
When compiling Cmm, the ml_hs_file field is used to indicate Cmm
filename when later generating DWARF information. We should pass the
original filename here, otherwise for preprocessed Cmm files, the
filename will be a temporary filename which is confusing.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/63aa006939a8b5284b0f6f6a1c26d52aa3ae47da" style="color: #1068bf;">63aa0069</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-17T06:46:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: remove legacy logging cabal flag
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bd0f418422a3ace8d05c8ce93850190e57321465" style="color: #1068bf;">bd0f4184</a></strong>
<div>
<span>by Cheng Shao</span>
<i>at 2022-09-17T06:46:04-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>rts: make threaded ways optional
For certain targets (e.g. wasm32-wasi), the threaded rts is known not to
work. This patch adds a "threaded" cabal flag to rts to make threaded
rts ways optional. Hadrian enables this flag iff the flavour rtsWays
contains threaded ways.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/08280089b080c90bd25e2261d1b337931d242013" style="color: #1068bf;">08280089</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-09-17T13:44:00-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Add `Eq` and `Ord` instances for `Generically1`
These are needed so the subsequent commit overhauling the `*1` classes
type-checks.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/08eca4ec4025bb42666a318cca73ca73f1beac75" style="color: #1068bf;">08eca4ec</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2022-09-17T13:44:53-04:00</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;'>Relax instances for Functor combinators; put superclass on Class1 and Class2 to make non-breaking
This change is approved by the Core Libraries commitee in
https://github.com/haskell/core-libraries-committee/issues/10
The first change makes the `Eq`, `Ord`, `Show`, and `Read` instances for
`Sum`, `Product`, and `Compose` match those for `:+:`, `:*:`, and `:.:`.
These have the proper flexible contexts that are exactly what the
instance needs:
For example, instead of
```haskell
instance (Eq1 f, Eq1 g, Eq a) => Eq (Compose f g a) where
(==) = eq1
```
we do
```haskell
deriving instance Eq (f (g a)) => Eq (Compose f g a)
```
But, that change alone is rather breaking, because until now `Eq (f a)`
and `Eq1 f` (and respectively the other classes and their `*1`
equivalents too) are *incomparable* constraints. This has always been an
annoyance of working with the `*1` classes, and now it would rear it's
head one last time as an pesky migration.
Instead, we give the `*1` classes superclasses, like so:
```haskell
(forall a. Eq a => Eq (f a)) => Eq1 f
```
along with some laws that canonicity is preserved, like:
```haskell
liftEq (==) = (==)
```
and likewise for `*2` classes:
```haskell
(forall a. Eq a => Eq1 (f a)) => Eq2 f
```
and laws:
```haskell
liftEq2 (==) = liftEq1
```
The `*1` classes also have default methods using the `*2` classes where
possible.
What this means, as explained in the docs, is that `*1` classes really
are generations of the regular classes, indicating that the methods can
be split into a canonical lifting combined with a canonical inner, with
the super class "witnessing" the laws[1] in a fashion.
Circling back to the pragmatics of migrating, note that the superclass
means evidence for the old `Sum`, `Product`, and `Compose` instances is
(more than) sufficient, so breakage is less likely --- as long no
instances are "missing", existing polymorphic code will continue to
work.
Breakage can occur when a datatype implements the `*1` class but not the
corresponding regular class, but this is almost certainly an oversight.
For example, containers made that mistake for `Tree` and `Ord`, which I
fixed in https://github.com/haskell/containers/pull/761, but fixing the
issue by adding `Ord1` was extremely *un*controversial.
`Generically1` was also missing `Eq`, `Ord`, `Read,` and `Show`
instances. It is unlikely this would have been caught without
implementing this change.
-----
[1]: In fact, someday, when the laws are part of the language and not
only documentation, we might be able to drop the superclass field of the
dictionary by using the laws to recover the superclass in an
instance-agnostic manner, e.g. with a *non*-overloaded function with
type:
```haskell
DictEq1 f -> DictEq a -> DictEq (f a)
```
But I don't wish to get into optomizations now, just demonstrate the
close relationship between the law and the superclass.
Bump haddock submodule because of test output changing.
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