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<h3 style="margin-top: 20px; margin-bottom: 10px;">
Jaro Reinders pushed to branch wip/T23578 at <a href="https://gitlab.haskell.org/ghc/ghc">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/ff884b7721eee4f0d36fccf1c635174b9cab1e2a">ff884b77</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-07-19T11:42:02+01:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Remove unused files in .gitlab
These were left over after 6078b429
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/29ef590c7940aac5a62f773b26e01ad18c9636ab">29ef590c</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-07-19T11:42:52+01:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>gen_ci: Add hie.yaml file
This allows you to load `gen_ci.hs` into HLS, and now it is a huge
module, that is quite useful.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/808b55cf44660796894401624207a789aa7e49f5">808b55cf</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-07-19T12:24:41+01:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>ci: Make "fast-ci" the default validate configuration
We are trying out a lighter weight validation pipeline where by default
we just test on 5 platforms:
* x86_64-deb10-slow-validate
* windows
* x86_64-fedora33-release
* aarch64-darwin
* aarch64-linux-deb10
In order to enable the "full" validation pipeline you can apply the
`full-ci` label which will enable all the validation pipelines.
All the validation jobs are still run on a marge batch.
The goal is to reduce the overall CI capacity so that pipelines start
faster for MRs and marge bot batches are faster.
Fixes #23694
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0b23db0314139a4ad453c590a184efb54bc842dd">0b23db03</a></strong>
<div>
<span> by Alan Zimmerman </span> <i> at 2023-07-20T05:28:47-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>EPA: Simplify GHC/Parser.y sL1
This is the next patch in a series simplifying location management in
GHC/Parser.y
This one simplifies sL1, to use the HasLoc instances introduced in
!10743 (closed)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3ece9856d157c85511d59f9f862ab351bbd9b38b">3ece9856</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-07-21T07:30:45-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>nativeGen: Explicitly set flags of text sections on Windows
The binutils documentation (for COFF) claims,
> If no flags are specified, the default flags depend upon the section
> name. If the section name is not recognized, the default will be for the
> section to be loaded and writable.
We previously assumed that this would do the right thing for split
sections (e.g. a section named `.text$foo` would be correctly inferred
to be a text section). However, we have observed that this is not the
case (at least under the clang toolchain used on Windows): when
split-sections is enabled, text sections are treated by the assembler as
data (matching the "default" behavior specified by the documentation).
Avoid this by setting section flags explicitly. This should fix split
sections on Windows.
Fixes #22834.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/db7f7240b53c01447e44d2790ee37eacaabfbcf3">db7f7240</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-07-21T07:30:45-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>nativeGen: Set explicit section types on all platforms
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b444c16f4ff64938a8bec9587bd90209bda682b9">b444c16f</a></strong>
<div>
<span> by Finley McIlwaine </span> <i> at 2023-07-21T07:31:28-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Insert documentation into parsed signature modules
Causes haddock comments in signature modules to be properly
inserted into the AST (just as they are for regular modules)
if the `-haddock` flag is given.
Also adds a test that compares `-ddump-parsed-ast` output
for a signature module to prevent further regressions.
Fixes #23315
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c30cea53dc328a326fc676e7824396518fd3ebda">c30cea53</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-07-21T23:23:49-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>primops: Introduce unsafeThawByteArray#
This addresses an odd asymmetry in the ByteArray# primops, which
previously provided unsafeFreezeByteArray# but no corresponding
thaw operation.
Closes #22710
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/87f9bd47780eb06b0953fee1fb445306d29db882">87f9bd47</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-07-21T23:23:49-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>testsuite: Elaborate in interface stability README
This discussion didn't make it into the original MR.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e4350b41b54c604e222fe3b0c4edb80beee2c0b3">e4350b41</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-07-21T23:24:25-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Allow users to override non-essential haddock options in a Flavour
We now supply the non-essential options to haddock using the `extraArgs`
field, which can be specified in a Flavour so that if an advanced user
wants to change how documentation is generated then they can use
something other than the `defaultHaddockExtraArgs`.
This does have the potential to regress some packaging if a user has
overridden `extraArgs` themselves, because now they also need to add
the haddock options to extraArgs. This can easily be done by appending
`defaultHaddockExtraArgs` to their extraArgs invocation but someone
might not notice this behaviour has changed.
In any case, I think passing the non-essential options in this manner is
the right thing to do and matches what we do for the "ghc" builder,
which by default doesn't pass any optmisation levels, and would likewise
be very bad if someone didn't pass suitable `-O` levels for builds.
Fixes #23625
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fc186b0c0ac56d6ff6225d3f6607be37770fcb52">fc186b0c</a></strong>
<div>
<span> by Ilias Tsitsimpis </span> <i> at 2023-07-21T23:25:03-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>ghc-prim: Link against libatomic
Commit b4d39adbb58 made 'hs_cmpxchg64()' available to all architectures.
Unfortunately this made GHC to fail to build on armel, since armel needs
libatomic to support atomic operations on 64-bit word sizes.
Configure libraries/ghc-prim/ghc-prim.cabal to link against libatomic,
the same way as we do in rts/rts.cabal.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4f5538a8e2a8b9bc490bcd098fa38f6f7e9f4d73">4f5538a8</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-07-21T23:25:39-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>simplifier: Correct InScopeSet in rule matching
The in-scope set passedto the `exprIsLambda_maybe` call lacked all the
in-scope binders. @simonpj suggests this fix where we augment the
in-scope set with the free variables of expression which fixes this
failure mode in quite a direct way.
Fixes #23630
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5ad8d59769a873a54d594b2b45205f8f10d3d813">5ad8d597</a></strong>
<div>
<span> by Krzysztof Gogolewski </span> <i> at 2023-07-21T23:26:17-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Add a test for #23413
It was fixed by commit e1590ddc661d6: Add the SolverStage monad.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7e05f6df938c62d265212abe97ac80c56154ba72">7e05f6df</a></strong>
<div>
<span> by sheaf </span> <i> at 2023-07-21T23:26:56-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Finish migration of diagnostics in GHC.Tc.Validity
This patch finishes migrating the error messages in GHC.Tc.Validity
to use the new diagnostic infrastructure.
It also refactors the error message datatypes for class and family
instances, to common them up under a single datatype as much as possible.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4876fddcadf7cd01e565acb4befb247bd8accc29">4876fddc</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-07-21T23:27:33-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>ci: Enable some more jobs to run in a marge batch
In !10907 I made the majority of jobs not run on a validate pipeline but
then forgot to renable a select few jobs on the marge batch MR.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/026991d7fcf9e3ce013081ab6d1e3d2200b694bb">026991d7</a></strong>
<div>
<span> by Jens Petersen </span> <i> at 2023-07-21T23:28:13-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>user_guide/flags.py: python-3.12 no longer includes distutils
packaging.version seems able to handle this fine
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b91bbc2bc9a736d8d41f9cc14f0a95b9c595a01b">b91bbc2b</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-07-21T23:28:50-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>ci: Mention ~full-ci label in MR template
We mention that if you need a full validation pipeline then you can
apply the ~full-ci label to your MR in order to test against the full
validation pipeline (like we do for marge).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/42b05e9b5e68e9e0f5c92ef0699fd4c1addc10f7">42b05e9b</a></strong>
<div>
<span> by sheaf </span> <i> at 2023-07-22T12:36:00-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>RTS: declare setKeepCAFs symbol
Commit 08ba8720 failed to declare the dependency of keepCAFsForGHCi on
the symbol setKeepCAFs in the RTS, which led to undefined symbol errors
on Windows, as exhibited by the testcase frontend001.
Thanks to Moritz Angermann and Ryan Scott for the diagnosis and fix.
Fixes #22961
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a72015d651a0d4386270e1983f32ed15ae854654">a72015d6</a></strong>
<div>
<span> by sheaf </span> <i> at 2023-07-22T12:36:01-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Mark plugins-external as broken on Windows
This test is broken on Windows, so we explicitly mark it as such now
that we stop skipping plugin tests on Windows.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cb9c93d7b8db816ed4271b3703b863c1cfbbcc45">cb9c93d7</a></strong>
<div>
<span> by sheaf </span> <i> at 2023-07-22T12:36:01-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Stop marking plugin tests as fragile on Windows
Now that b2bb3e62 has landed we are in a better situation with
regards to plugins on Windows, allowing us to unmark many plugin tests
as fragile.
Fixes #16405
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a7349217fb9a992ad1c0e0d6ce1ab78e29dbe144">a7349217</a></strong>
<div>
<span> by Krzysztof Gogolewski </span> <i> at 2023-07-22T12:36:37-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Misc cleanup
- Remove unused RDR names
- Fix typos in comments
- Deriving: simplify boxConTbl and remove unused litConTbl
- chmod -x GHC/Exts.hs, this seems accidental
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/33b6850aaaa4b3a4760d4b384cd15611b159045b">33b6850a</a></strong>
<div>
<span> by Vladislav Zavialov </span> <i> at 2023-07-23T10:27:37-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Visible forall in types of terms: Part 1 (#22326)
This patch implements part 1 of GHC Proposal #281,
introducing explicit `type` patterns and `type` arguments.
Summary of the changes:
1. New extension flag:
RequiredTypeArguments
2. New user-facing syntax:
`type p` patterns (represented by EmbTyPat)
`type e` expressions (represented by HsEmbTy)
3. Functions with required type arguments (visible forall)
can now be defined and applied:
idv :: forall a -> a -> a -- signature (relevant change: checkVdqOK in GHC/Tc/Validity.hs)
idv (type a) (x :: a) = x -- definition (relevant change: tcPats in GHC/Tc/Gen/Pat.hs)
x = idv (type Int) 42 -- usage (relevant change: tcInstFun in GHC/Tc/Gen/App.hs)
4. template-haskell support:
TH.TypeE corresponds to HsEmbTy
TH.TypeP corresponds to EmbTyPat
5. Test cases and a new User's Guide section
Changes *not* included here are the t2t (term-to-type) transformation
and term variable capture; those belong to part 2.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/73b5c7ce33929e1f7c9283ed7c2860aa40f6d0ec">73b5c7ce</a></strong>
<div>
<span> by sheaf </span> <i> at 2023-07-23T10:28:18-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Add test for #22424
This is a simple Template Haskell test in which we refer to
record selectors by their exact Names, in two different ways.
Fixes #22424
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/83cbc6728078e4ffa4ff39642281ecf092802e0c">83cbc672</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-07-24T07:40:49+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>ghc-toolchain: Initial commit
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/31dcd26caea17de1566063a9854585846d0d14da">31dcd26c</a></strong>
<div>
<span> by Rodrigo Mesquita </span> <i> at 2023-07-24T07:40:49+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>ghc-toolchain: Toolchain Selection
This commit integrates ghc-toolchain, the brand new way of configuring
toolchains for GHC, with the Hadrian build system, with configure, and
extends and improves the first iteration of ghc-toolchain.
The general overview is
* We introduce a program invoked `ghc-toolchain --triple=...` which, when run,
produces a file with a `Target`. A `GHC.Toolchain.Target.Target`
describes the properties of a target and the toolchain (executables
and configured flags) to produce code for that target
* Hadrian was modified to read Target files, and will both
* Invoke the toolchain configured in the Target file as needed
* Produce a `settings` file for GHC based on the Target file for that stage
* `./configure` will invoke ghc-toolchain to generate target files, but
it will also generate target files based on the flags configure itself
configured (through `.in` files that are substituted)
* By default, the Targets generated by configure are still (for now) the ones used by Hadrian
* But we additionally validate the Target files generated by
ghc-toolchain against the ones generated by configure, to get a head
start on catching configuration bugs before we transition
completely.
* When we make that transition, we will want to drop a lot of the
toolchain configuration logic from configure, but keep it otherwise.
* For each compiler stage we should have 1 target file (up to a stage compiler we can't run in our machine)
* We just have a HOST target file, which we use as the target for stage0
* And a TARGET target file, which we use for stage1 (and later stages, if not cross compiling)
* Note there is no BUILD target file, because we only support cross compilation where BUILD=HOST
* (for more details on cross-compilation see discussion on !9263)
See also
* Note [How we configure the bundled windows toolchain]
* Note [ghc-toolchain consistency checking]
* Note [ghc-toolchain overview]
Ticket: #19877
MR: !9263
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a732b6d366a049cbbcbc7b38ee49aaec06a305d6">a732b6d3</a></strong>
<div>
<span> by Rodrigo Mesquita </span> <i> at 2023-07-24T07:40:49+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Add flag to enable/disable ghc-toolchain based configurations
This flag is disabled by default, and we'll use the
configure-generated-toolchains by default until we remove the toolchain
configuration logic from configure.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/61eea240424d40ea233548d27e0de06eaca996c2">61eea240</a></strong>
<div>
<span> by Rodrigo Mesquita </span> <i> at 2023-07-24T07:40:49+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Split ghc-toolchain executable to new packge
In light of #23690, we split the ghc-toolchain executable out of the
library package to be able to ship it in the bindist using Hadrian.
Ideally, we eventually revert this commit.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/38e795ffc1688d2a1c62dec1a5309c2ba7a8b2c4">38e795ff</a></strong>
<div>
<span> by Rodrigo Mesquita </span> <i> at 2023-07-24T07:40:49+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Ship ghc-toolchain in the bindist
Add the ghc-toolchain binary to the binary distribution we ship to
users, and teach the bindist configure to use the existing ghc-toolchain.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/32cae784b7bfcb6562a9ad041e7608dbcf0f5d72">32cae784</a></strong>
<div>
<span> by Matthew Craven </span> <i> at 2023-07-24T16:48:24-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Kill off gen_bytearray_addr_access_ops.py
The relevant primop descriptions are now
generated directly by genprimopcode.
This makes progress toward fixing #23490, but it is not
a complete fix since there is more than one way in which
cabal-reinstall (hadrian/build build-cabal) is broken.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/02e6a6ceac761d62ed30817b9525d952bca599ac">02e6a6ce</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-07-24T16:49:00-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>compiler: Remove unused `containers.h` include
Fixes #23712
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/822ef66b54bd48df7c01fcafb99b7694952cae28">822ef66b</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-07-25T08:44:50-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Fix pretty printing of WARNING pragmas
There is still something quite unsavoury going on with WARNING pragma
printing because the printing relies on the fact that for decl
deprecations the SourceText of WarningTxt is empty. However, I let that
lion sleep and just fixed things directly.
Fixes #23465
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e7b38ede16df565c322cf6e91b888cbb185112bd">e7b38ede</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-07-25T08:45:28-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>ci-images: Bump to commit which has 9.6 image
The test-bootstrap job has been failing for 9.6 because we accidentally
used a non-master commit.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bb4089363c55bcba7248c0518758ecacf824ca0d">bb408936</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-07-25T08:45:28-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Update bootstrap plans for 9.6.2 and 9.4.5
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/355e1792d814779de82c1800fde218a89fb1595c">355e1792</a></strong>
<div>
<span> by Alan Zimmerman </span> <i> at 2023-07-26T10:17:32-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>EPA: Simplify GHC/Parser.y comb4/comb5
Use the HasLoc instance from Ast.hs to allow comb4/comb5 to work with
anything with a SrcSpan
Also get rid of some more now unnecessary reLoc calls.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9393df839707b31d87ae00d7370401c0ef3df6a0">9393df83</a></strong>
<div>
<span> by Gavin Zhao </span> <i> at 2023-07-26T10:18:16-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>compiler: make -ddump-asm work with wasm backend NCG
Fixes #23503.
Now the `-ddump-asm` flag is respected in the wasm backend
NCG, so developers can directly view the generated ASM instead of
needing to pass `-S` or `-keep-tmp-files` and manually find & open
the assembly file.
Ideally, we should be able to output the assembly files in smaller
chunks like in other NCG backends. This would also make dumping assembly
stats easier. However, this would require a large refactoring, so for
short-term debugging purposes I think the current approach works fine.
Signed-off-by: Gavin Zhao <git@gzgz.dev>
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/794630364631809d728a42466dcb8cf57b11b944">79463036</a></strong>
<div>
<span> by Krzysztof Gogolewski </span> <i> at 2023-07-26T10:18:54-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>llvm: Restore accidentally deleted code in 0fc5cb97
Fixes #23711
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/20db7e26d1dd3cab7e73ab19fd4f14dd038bbd00">20db7e26</a></strong>
<div>
<span> by Rodrigo Mesquita </span> <i> at 2023-07-26T10:19:33-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>configure: Default missing options to False when preparing ghc-toolchain Targets
This commit fixes building ghc with 9.2 as the boostrap compiler.
The ghc-toolchain patch assumed all _STAGE0 options were available, and
forgot to account for this missing information in 9.2.
Ghc 9.2 does not have in settings whether ar supports -l, hence can't
report it with --info (unliked 9.4 upwards).
The fix is to default the missing information (we default "ar supports
-l" and other missing options to False)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fac9e84e65b89116131a14981ffb7233c32bd544">fac9e84e</a></strong>
<div>
<span> by Naïm Favier </span> <i> at 2023-07-26T10:20:16-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>docs: Fix typo</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/503fd6478086144a00e424d02cc21773a8e0ee24">503fd647</a></strong>
<div>
<span> by Bartłomiej Cieślar </span> <i> at 2023-07-26T17:23:10-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>This MR is an implementation of the proposal #516.
It adds a warning -Wincomplete-record-selectors for usages of a record
field access function (either a record selector or getField @"rec"),
while trying to silence the warning whenever it can be sure that a constructor
without the record field would not be invoked (which would otherwise cause
the program to fail). For example:
data T = T1 | T2 {x :: Bool}
f a = x a -- this would throw an error
g T1 = True
g a = x a -- this would not throw an error
h :: HasField "x" r Bool => r -> Bool
h = getField @"x"
j :: T -> Bool
j = h -- this would throw an error because of the `HasField`
-- constraint being solved
See the tests DsIncompleteRecSel* and TcIncompleteRecSel for more examples of the warning.
See Note [Detecting incomplete record selectors] in GHC.HsToCore.Expr for implementation details
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/af6fdf428be85ce21a25477bb1e705eb354791ef">af6fdf42</a></strong>
<div>
<span> by Arnaud Spiwack </span> <i> at 2023-07-26T17:23:52-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Fix user-facing label in MR template
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5d45b92a9bd080412c043795eb58932a303e7de0">5d45b92a</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-07-27T05:46:46-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>ci: Test bootstrapping configurations with full-ci and on marge batches
There have been two incidents recently where bootstrapping has been
broken by removing support for building with 9.2.*.
The process for bumping the minimum required version starts with bumping
the configure version and then other CI jobs such as the bootstrap jobs
have to be updated. We must not silently bump the minimum required
version.
Now we are running a slimmed down validate pipeline it seems worthwile
to test these bootstrap configurations in the full-ci pipeline.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/25d4fee766aafc3cefc856d913bc26c44ba3d2be">25d4fee7</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-07-27T05:46:46-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>bootstrap: Remove ghc-9_2_* plans
We are anticipating shortly making it necessary to use ghc-9.4 to boot
the compiler.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2f66da16a2c7260f81dbb8b4e7e8449da9d1134b">2f66da16</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-07-27T05:46:46-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Update bootstrap plans for ghc-platform and ghc-toolchain dependencies
Fixes #23735
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c8c6eab1f8d867cfaf218f998a21b655b8bb0f4c">c8c6eab1</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-07-27T05:46:46-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>bootstrap: Disable -selftest flag from bootstrap plans
This saves on building one dependency (QuickCheck) which is unecessary
for bootstrapping.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a80ca0868cac6e08fc56387852826457ff07569f">a80ca086</a></strong>
<div>
<span> by Bodigrim </span> <i> at 2023-07-27T05:47:26-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Link reference paper and package from System.Mem.{StableName,Weak}
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a53193589ac5bd9973711733a7ccd66080dca794">a5319358</a></strong>
<div>
<span> by David Knothe </span> <i> at 2023-07-28T13:13:10-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Update Match Datatype
EquationInfo currently contains a list of the equation's patterns together with a CoreExpr that is to be evaluated after a successful match on this equation.
All the match-functions only operate on the first pattern of an equation - after successfully matching it, match is called recursively on the tail of the pattern list.
We can express this more clearly and make the code a little more elegant by updating the datatype of EquationInfo as follows:
data EquationInfo
= EqnMatch { eqn_pat = Pat GhcTc, eqn_rest = EquationInfo }
| EqnDone { eqn_rhs = MatchResult CoreExpr }
An EquationInfo now explicitly exposes its first pattern which most functions operate on, and exposes the equation that remains after processing the first pattern. An EqnDone signifies an empty equation where the CoreExpr can now be evaluated.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/86ad1af987747645b600bf9606509f27e4f3e45c">86ad1af9</a></strong>
<div>
<span> by David Binder </span> <i> at 2023-07-28T13:13:53-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Improve documentation for Data.Fixed
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f8fa1d08d7cbfef508bab355bda80f495e928f98">f8fa1d08</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-07-28T13:14:31-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>ghc-prim: Use C11 atomics
Previously `ghc-prim`'s atomic wrappers used the legacy `__sync_*`
family of C builtins. Here we refactor these to rather use the
appropriate C11 atomic equivalents, allowing us to be more explicit
about the expected ordering semantics.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0bfc89087964083336e8dca0d44b6f1884c19cd8">0bfc8908</a></strong>
<div>
<span> by Finley McIlwaine </span> <i> at 2023-07-28T18:46:26-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Include -haddock in DynFlags fingerprint
The -haddock flag determines whether or not the resulting .hi files
contain haddock documentation strings. If the existing .hi files do
not contain haddock documentation strings and the user requests them,
we should recompile.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/40425c5021a9d8eb5e1c1046e2d5fa0a2918f96c">40425c50</a></strong>
<div>
<span> by Andreas Klebinger </span> <i> at 2023-07-28T18:47:02-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Aarch64 NCG: Use encoded immediates for literals.
Try to generate
instr x2, <imm>
instead of
mov x1, lit
instr x2, x1
When possible. This get's rid if quite a few redundant
mov instructions.
I believe this causes a metric decrease for LargeRecords as
we reduce register pressure.
-------------------------
Metric Decrease:
LargeRecord
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e9a0fa3f6db3ce995c6d0d30798cee78cbd7e90d">e9a0fa3f</a></strong>
<div>
<span> by Bodigrim </span> <i> at 2023-07-28T18:47:42-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Bump filepath submodule to 1.4.100.4
Resolves #23741
Metric Decrease:
MultiComponentModules
MultiComponentModulesRecomp
MultiLayerModules
MultiLayerModulesRecomp
T10421
T12234
T12425
T13035
T13701
T13719
T16875
T18304
T18698a
T18698b
T21839c
T9198
TcPlugin_RewritePerf
hard_hole_fits
Metric decrease on Windows can be probably attributed to https://github.com/haskell/filepath/pull/183
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ee93edfded6ef95e911b7d265feebd1c7f542e8d">ee93edfd</a></strong>
<div>
<span> by Bodigrim </span> <i> at 2023-07-28T18:48:21-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Add since pragmas to GHC.IO.Handle.FD
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d03698023891b9d474915ad1cccdef8c8ba78e78">d0369802</a></strong>
<div>
<span> by Simon Peyton Jones </span> <i> at 2023-07-30T09:24:48+01:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Make the occurrence analyser smarter about join points
This MR addresses #22404. There is a big Note
Note [Occurrence analysis for join points]
that explains it all. Significant changes
* New field occ_join_points in OccEnv
* The NonRec case of occAnalBind splits into two cases:
one for existing join points (which does the special magic for
Note [Occurrence analysis for join points], and one for other
bindings.
* mkOneOcc adds in info from occ_join_points.
* All "bring into scope" activity is centralised in the
new function `addInScope`.
* I made a local data type LocalOcc for use inside the occurrence analyser
It is like OccInfo, but lacks IAmDead and IAmALoopBreaker, which in turn
makes computationns over it simpler and more efficient.
* I found quite a bit of allocation in GHC.Core.Rules.getRules
so I optimised it a bit.
More minor changes
* I found I was using (Maybe Arity) a lot, so I defined a new data
type JoinPointHood and used it everwhere. This touches a lot of
non-occ-anal files, but it makes everything more perspicuous.
* Renamed data constructor WithUsageDetails to WUD, and
WithTailUsageDetails to WTUD
This also fixes #21128, on the way.
--------- Compiler perf -----------
I spent quite a time on performance tuning, so even though it
does more than before, the occurrence analyser runs slightly faster
on average. Here are the compile-time allocation changes over 0.5%
CoOpt_Read(normal) ghc/alloc 766,025,520 754,561,992 -1.5%
CoOpt_Singletons(normal) ghc/alloc 759,436,840 762,925,512 +0.5%
LargeRecord(normal) ghc/alloc 1,814,482,440 1,799,530,456 -0.8%
PmSeriesT(normal) ghc/alloc 68,159,272 67,519,720 -0.9%
T10858(normal) ghc/alloc 120,805,224 118,746,968 -1.7%
T11374(normal) ghc/alloc 164,901,104 164,070,624 -0.5%
T11545(normal) ghc/alloc 79,851,808 78,964,704 -1.1%
T12150(optasm) ghc/alloc 73,903,664 71,237,544 -3.6% GOOD
T12227(normal) ghc/alloc 333,663,200 331,625,864 -0.6%
T12234(optasm) ghc/alloc 52,583,224 52,340,344 -0.5%
T12425(optasm) ghc/alloc 81,943,216 81,566,720 -0.5%
T13056(optasm) ghc/alloc 294,517,928 289,642,512 -1.7%
T13253-spj(normal) ghc/alloc 118,271,264 59,859,040 -49.4% GOOD
T15164(normal) ghc/alloc 1,102,630,352 1,091,841,296 -1.0%
T15304(normal) ghc/alloc 1,196,084,000 1,166,733,000 -2.5%
T15630(normal) ghc/alloc 148,729,632 147,261,064 -1.0%
T15703(normal) ghc/alloc 379,366,664 377,600,008 -0.5%
T16875(normal) ghc/alloc 32,907,120 32,670,976 -0.7%
T17516(normal) ghc/alloc 1,658,001,888 1,627,863,848 -1.8%
T17836(normal) ghc/alloc 395,329,400 393,080,248 -0.6%
T18140(normal) ghc/alloc 71,968,824 73,243,040 +1.8%
T18223(normal) ghc/alloc 456,852,568 453,059,088 -0.8%
T18282(normal) ghc/alloc 129,105,576 131,397,064 +1.8%
T18304(normal) ghc/alloc 71,311,712 70,722,720 -0.8%
T18698a(normal) ghc/alloc 208,795,112 210,102,904 +0.6%
T18698b(normal) ghc/alloc 230,320,736 232,697,976 +1.0% BAD
T19695(normal) ghc/alloc 1,483,648,128 1,504,702,976 +1.4%
T20049(normal) ghc/alloc 85,612,024 85,114,376 -0.6%
T21839c(normal) ghc/alloc 415,080,992 410,906,216 -1.0% GOOD
T4801(normal) ghc/alloc 247,590,920 250,726,272 +1.3%
T6048(optasm) ghc/alloc 95,699,416 95,080,680 -0.6%
T783(normal) ghc/alloc 335,323,384 332,988,120 -0.7%
T9233(normal) ghc/alloc 709,641,224 685,947,008 -3.3% GOOD
T9630(normal) ghc/alloc 965,635,712 948,356,120 -1.8%
T9675(optasm) ghc/alloc 444,604,152 428,987,216 -3.5% GOOD
T9961(normal) ghc/alloc 303,064,592 308,798,800 +1.9% BAD
WWRec(normal) ghc/alloc 503,728,832 498,102,272 -1.1%
geo. mean -1.0%
minimum -49.4%
maximum +1.9%
In fact these figures seem to vary between platforms; generally worse
on i386 for some reason. The Windows numbers vary by 1% espec in
benchmarks where the total allocation is low. But the geom mean stays
solidly negative, which is good. The "increase/decrease" list below
covers all platforms.
The big win on T13253-spj comes because it has a big nest of join
points, each occurring twice in the next one. The new occ-anal takes
only one iteration of the simplifier to do the inlining; the old one
took four. Moreover, we get much smaller code with the new one:
New: Result size of Tidy Core
= {terms: 429, types: 84, coercions: 0, joins: 14/14}
Old: Result size of Tidy Core
= {terms: 2,437, types: 304, coercions: 0, joins: 10/10}
--------- Runtime perf -----------
No significant changes in nofib results, except a 1% reduction in
compiler allocation.
Metric Decrease:
CoOpt_Read
T13253-spj
T9233
T9630
T9675
T12150
T21839c
LargeRecord
MultiComponentModulesRecomp
T10421
T13701
T10421
T13701
T12425
Metric Increase:
T18140
T9961
T18282
T18698a
T18698b
T19695
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/42aa7fbd6cc51f7cd993621336e1c3fa8202ab1f">42aa7fbd</a></strong>
<div>
<span> by Julian Ospald </span> <i> at 2023-07-30T17:22:01-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Improve documentation around IOException and ioe_filename
See:
* https://github.com/haskell/core-libraries-committee/issues/189
* https://github.com/haskell/unix/pull/279
* https://github.com/haskell/unix/pull/289
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/33598ecb624867dce36a71b265c054b689ed9701">33598ecb</a></strong>
<div>
<span> by Sylvain Henry </span> <i> at 2023-08-01T14:45:54-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>JS: implement getMonotonicTime (fix #23687)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d2bedffdc07b766f01dfcd4fc73a3859305814f3">d2bedffd</a></strong>
<div>
<span> by Bartłomiej Cieślar </span> <i> at 2023-08-01T14:46:40-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Implementation of the Deprecated Instances proposal #575
This commit implements the ability to deprecate certain instances,
which causes the compiler to emit the desired deprecation message
whenever they are instantiated. For example:
module A where
class C t where
instance {-# DEPRECATED "dont use" #-} C Int where
module B where
import A
f :: C t => t
f = undefined
g :: Int
g = f -- "dont use" emitted here
The implementation is as follows:
- In the parser, we parse deprecations/warnings attached to instances:
instance {-# DEPRECATED "msg" #-} Show X
deriving instance {-# WARNING "msg2" #-} Eq Y
(Note that non-standalone deriving instance declarations do not support
this mechanism.)
- We store the resulting warning message in `ClsInstDecl` (respectively, `DerivDecl`).
In `GHC.Tc.TyCl.Instance.tcClsInstDecl` (respectively, `GHC.Tc.Deriv.Utils.newDerivClsInst`),
we pass on that information to `ClsInst` (and eventually store it in `IfaceClsInst` too).
- Finally, when we solve a constraint using such an instance, in
`GHC.Tc.Instance.Class.matchInstEnv`, we emit the appropriate warning
that was stored in `ClsInst`.
Note that we only emit a warning when the instance is used in a different module
than it is defined, which keeps the behaviour in line with the deprecation of
top-level identifiers.
Signed-off-by: Bartłomiej Cieślar <bcieslar2001@gmail.com>
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d5a65af6a8c915c1bff8fe83d25c36cddcf3181f">d5a65af6</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-08-01T14:47:18-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>compiler: Style fixes
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7218c80a7b969b87c647dad12c897e4c794bd540">7218c80a</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-08-01T14:47:19-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>rts: Fix implicit cast
This ensures that Task.h can be built with a C++ compiler.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d6d5aafc0d9766f055a708f4d3dab9cba81d995a">d6d5aafc</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-08-01T14:47:19-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>testsuite: Fix warning in hs_try_putmvar001
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d9eddf7acacc11c7b3624d82e5ed6d2acfe34c06">d9eddf7a</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-08-01T14:47:19-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>testsuite: Add AtomicModifyIORef test
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f9eea4ba4533f41332e0ffb57c3a9f8c2a5c7cd2">f9eea4ba</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-08-01T14:47:19-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>rts: Introduce NO_WARN macro
This allows fine-grained ignoring of warnings.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/497b24ecf5bd39e266d817e1f187d3a80563c8b6">497b24ec</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-08-01T14:47:19-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>rts: Simplify atomicModifyMutVar2# implementation
Previously we would perform a redundant load in the non-threaded RTS in
atomicModifyMutVar2# implementation for the benefit of the non-moving
GC's write barrier. Eliminate this.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/52ee082b394b4d38314e6ce84760b4233d312564">52ee082b</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-08-01T14:47:19-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>rts: Introduce more principled fence operations
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cd3c037726ec135fe313882c35fb7108a5e1866b">cd3c0377</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-08-01T14:47:19-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>rts: Introduce SET_INFO_RELAXED
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6df2352a439657c37d71b6ce5dbf2b7d1b0c2aa2">6df2352a</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-08-01T14:47:19-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>rts: Style fixes
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4ef6f3192e940b9c9f3ae0652a3b604d4ad05830">4ef6f319</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-08-01T14:47:19-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>codeGen/tsan: Rework handling of spilling
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f9ca7e275e421a6c5b31e0525f9d9f8b2c23b54f">f9ca7e27</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-08-01T14:47:19-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>hadrian: More debug information
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/df4153ac9d0e7dee507e0efd972a085f1ea423ed">df4153ac</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-08-01T14:47:19-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Improve TSAN documentation
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fecae988ceeec8490d6de729567e344b6033e4b0">fecae988</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-08-01T14:47:19-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>hadrian: More selective TSAN instrumentation
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/465a9a0bb2ecc7b1ec19832949d069b9d2598489">465a9a0b</a></strong>
<div>
<span> by Alan Zimmerman </span> <i> at 2023-08-01T14:47:56-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>EPA: Provide correct annotation span for ImportDecl
Use the whole declaration, rather than just the span of the 'import'
keyword.
Metric Decrease:
T9961
T5205
Metric Increase:
T13035
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ae63d0faf400185564d1165b46801e5234908a14">ae63d0fa</a></strong>
<div>
<span> by Bartłomiej Cieślar </span> <i> at 2023-08-01T14:48:40-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Add cases to T23279: HasField for deprecated record fields
This commit adds additional tests from ticket #23279 to ensure that we don't
regress on reporting deprecated record fields in conjunction with HasField,
either when using overloaded record dot syntax or directly through `getField`.
Fixes #23279
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/00fb6e6b06598752414a0b9a92840fb6ca61338d">00fb6e6b</a></strong>
<div>
<span> by Andreas Klebinger </span> <i> at 2023-08-01T14:49:17-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>AArch NCG: Pure refactor
Combine some alternatives. Add some line breaks for overly long lines
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8f3b3b78a8cce3bd463ed175ee933c2aabffc631">8f3b3b78</a></strong>
<div>
<span> by Andreas Klebinger </span> <i> at 2023-08-01T14:49:54-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Aarch ncg: Optimize immediate use for address calculations
When the offset doesn't fit into the immediate we now just reuse the
general getRegister' code path which is well optimized to compute the
offset into a register instead of a special case for CmmRegOff.
This means we generate a lot less code under certain conditions which is
why performance metrics for these improve.
-------------------------
Metric Decrease:
T4801
T5321FD
T5321Fun
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/74a882dc0b7cd1cd28634baedd0b2b933f418a9b">74a882dc</a></strong>
<div>
<span> by MorrowM </span> <i> at 2023-08-02T06:00:03-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Add a RULE to make lookup fuse
See https://github.com/haskell/core-libraries-committee/issues/175
Metric Increase:
T18282
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cca74dab6809f8cf7ffc2ec9df689e06aa425110">cca74dab</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-08-02T06:00:39-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>hadrian: Ensure that way-flags are passed to CC
Previously the way-specific compilation flags (e.g. `-DDEBUG`,
`-DTHREADED_RTS`) would not be passed to the CC invocations. This meant
that C dependency files would not correctly reflect
dependencies predicated on the way, resulting in the rather
painful #23554.
Closes #23554.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/622b483cbc5e6559bac6ddbde24fb12219c82968">622b483c</a></strong>
<div>
<span> by Jaro Reinders </span> <i> at 2023-08-02T06:01:20-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Native 32-bit Enum Int64/Word64 instances
This commits adds more performant Enum Int64 and Enum Word64 instances
for 32-bit platforms, replacing the Integer-based implementation.
These instances are a copy of the Enum Int and Enum Word instances with
minimal changes to manipulate Int64 and Word64 instead.
On i386 this yields a 1.5x performance increase and for the JavaScript
back end it even yields a 5.6x speedup.
Metric Decrease:
T18964
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c8bd7fa469fb12fafb201c3bf71f9499ce91fe14">c8bd7fa4</a></strong>
<div>
<span> by Sylvain Henry </span> <i> at 2023-08-02T06:02:03-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>JS: fix typos in constants (#23650)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b9d5bfe9e76e18c78dbcb67e1c5c33a15a54dcd0">b9d5bfe9</a></strong>
<div>
<span> by Josh Meredith </span> <i> at 2023-08-02T06:02:40-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>JavaScript: update MK_TUP macros to use current tuple constructors (#23659)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/28211215b76ea88d3969a9e308ce083dad389986">28211215</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-08-02T06:03:19-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>ci: Pass -Werror when building hadrian in hadrian-ghc-in-ghci job
Warnings when building Hadrian can end up cluttering the output of HLS,
and we've had bug reports in the past about these warnings when building
Hadrian. It would be nice to turn on -Werror on at least one build of
Hadrian in CI to avoid a patch introducing warnings when building
Hadrian.
Fixes #23638
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/aca20a5d4fde1c6429c887624bb95c9b54b7af73">aca20a5d</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-08-02T06:03:55-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>codeGen: Ensure that TSAN is aware of writeArray# write barriers
By using a proper release store instead of a fence.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/453c0531f2edf49b75c73bc45944600d8d7bf767">453c0531</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-08-02T06:03:55-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>codeGen: Ensure that array reads have necessary barriers
This was the cause of #23541.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/93a0d089e38156fbe6984cf174ec75d29ddffe5b">93a0d089</a></strong>
<div>
<span> by Arnaud Spiwack </span> <i> at 2023-08-02T06:04:37-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Add test for #23550
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6a2f4a204e8bb65c6711fefbafe6fcd5cd7c4c36">6a2f4a20</a></strong>
<div>
<span> by Arnaud Spiwack </span> <i> at 2023-08-02T06:04:37-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Desugar non-recursive lets to non-recursive lets (take 2)
This reverts commit 522bd584f71ddeda21efdf0917606ce3d81ec6cc. And
takes care of the case that I missed in my previous attempt. Namely
the case of an AbsBinds with no type variables and no dictionary
variable.
Ironically, the comment explaining why non-recursive lets were
desugared to recursive lets were pointing specifically at this case
as the reason. I just failed to understand that it was until Simon PJ
pointed it out to me.
See #23550 for more discussion.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ff81d53f6404867c7cdd9dde5bb6bf3776912048">ff81d53f</a></strong>
<div>
<span> by jade </span> <i> at 2023-08-02T06:05:20-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Expand documentation of List & Data.List
This commit aims to improve the documentation and examples
of symbols exported from Data.List
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fa4e5913251786f2b535b31abd3fad39da8b3602">fa4e5913</a></strong>
<div>
<span> by Jade </span> <i> at 2023-08-02T06:06:03-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Improve documentation of Semigroup & Monoid
This commit aims to improve the documentation of various symbols
exported from Data.Semigroup and Data.Monoid
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<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5619d4b64b31f3e227de1d59ef66f6703b23a600">5619d4b6</a></strong>
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<span> by Jaro Reinders </span> <i> at 2023-08-03T09:58:29+02:00 </i>
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<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: "GitLab Mono", "JetBrains Mono", "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Add changelog entry for specialised Enum Int64/Word64 instances
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