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<h3 style="margin-top: 20px; margin-bottom: 10px;">
Zubin pushed to branch wip/9.4.7-backports 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/16ba6e4531037c730ba1328ec803f1c0b9a5e346">16ba6e45</a></strong>
<div>
<span> by Matthew Craven </span> <i> at 2023-08-21T07:27:30+05:30 </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 bytestring submodule to 0.11.5.1
(cherry picked from commit 43578d60bfc478e7277dcd892463cec305400025)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d013afac0cc413ecb04d79c1f7143aa39fd3f82d">d013afac</a></strong>
<div>
<span> by Zubin Duggal </span> <i> at 2023-08-21T07:27:30+05:30 </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;'>Prepare release 9.4.6
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9342e0fbc44981aee3038e480b3cc60f6013cc83">9342e0fb</a></strong>
<div>
<span> by Zubin Duggal </span> <i> at 2023-08-21T07:27:31+05:30 </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 bytestring submodule to 0.11.5.2 (#23789)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4c3caa3aa511e541581ccf43863c72411dd39f32">4c3caa3a</a></strong>
<div>
<span> by Zubin Duggal </span> <i> at 2023-08-21T07:27:31+05:30 </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;'>Specialise: Cherry-pick fix for #21332 from
commit 4d2ee313f23a4454d12c9f94ff132f078dd64d31
Author: Sebastian Graf <sebastian.graf@kit.edu>
Date: Thu Apr 7 17:21:08 2022 +0200
Specialising through specialised method calls (#19644)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f97b432e525ecf2d15443cceefdddf5bcaced78d">f97b432e</a></strong>
<div>
<span> by Simon Peyton Jones </span> <i> at 2023-08-21T07:27:31+05:30 </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 substitution in bindAuxiliaryDict
In GHC.Core.Opt.Specialise.bindAuxiliaryDict we were unnecessarily
calling `extendInScope` to bring into scope variables that were
/already/ in scope. Worse, GHC.Core.Subst.extendInScope strangely
deleted the newly-in-scope variables from the substitution -- and that
was fatal in #21391.
I removed the redundant calls to extendInScope.
More ambitiously, I changed GHC.Core.Subst.extendInScope (and cousins)
to stop deleting variables from the substitution. I even changed the
names of the function to extendSubstInScope (and cousins) and audited
all the calls to check that deleting from the substitution was wrong.
In fact there are very few such calls, and they are all about
introducing a fresh non-in-scope variable. These are "OutIds"; it is
utterly wrong to mess with the "InId" substitution.
I have not added a Note, because I'm deleting wrong code, and it'd be
distracting to document a bug.
(cherry picked from commit 000b7d3d2f9211c3243d34a47ce93eb985d0cc88)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b069ae723511f94d0e1c6b0d1cbd4bc050183e48">b069ae72</a></strong>
<div>
<span> by Simon Peyton Jones </span> <i> at 2023-08-21T07:27:31+05:30 </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 floated dicts in Specialise
Second fix to #21391. It turned out that we missed calling
bringFloatedDictsIntoScope when specialising imports, which
led to the same bug as before.
I refactored to move that call to a single place, in specCalls,
so we can't forget it.
This meant making `FloatedDictBinds` into its own type, pairing
the dictionary bindings themselves with the set of their binders.
Nicer this way.
(cherry picked from commit 2c541f99f5a83cee873b76b3bd46e4d617f5bcd7)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c5b4ad61cba06f1e7efb5850691e50fcff704488">c5b4ad61</a></strong>
<div>
<span> by Simon Peyton Jones </span> <i> at 2023-08-21T07:27:31+05:30 </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;'>Ensure floated dictionaries are in scope (again)
In the Specialiser, we missed one more call to
bringFloatedDictsIntoScope (see #21391).
This omission led to #21689. The problem is that the call
to `rewriteClassOps` needs to have in scope any dictionaries
floated out of the arguments we have just specialised.
Easy fix.
(cherry picked from commit 04209f2a6a49f6cdc116b5cb73ccd1749c90f88b)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c4344c08714fdb711c1883a4cb5f465cb2ffb7f6">c4344c08</a></strong>
<div>
<span> by Simon Peyton Jones </span> <i> at 2023-08-21T07:27:31+05:30 </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 a scoping bug in the Specialiser
In the call to `specLookupRule` in `already_covered`, in `specCalls`,
we need an in-scope set that includes the free vars of the arguments.
But we simply were not guaranteeing that: did not include the
`rule_bndrs`.
Easily fixed. I'm not sure how how this bug has lain for quite
so long without biting us.
Fixes #21828.
(cherry picked from commit 460505345e500eb902da9737c75c077d5fc5ef66)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/aee7ef462e35bff283328e246546ddcfeb1257f7">aee7ef46</a></strong>
<div>
<span> by Jens Petersen </span> <i> at 2023-08-21T07:27:31+05:30 </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 hadrian buildable with Cabal-3.8
(cherry picked from commit 5042fb142daa7275e8bb16ff7575cd8de0e017d6)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dd464648c24070667220e9a41d569f3c49e54e0f">dd464648</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-08-21T07:27:31+05:30 </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;'>Build vanilla alpine bindists
We currently attempt to build and distribute fully static alpine
bindists (ones which could be used on any linux platform) but most
people who use the alpine bindists want to use alpine to build their own
static applications (for which a fully static bindist is not necessary).
We should build and distribute these bindists for these users whilst the
fully-static bindist is still unusable.
Fixes #23349
(cherry picked from commit 29be39ba3f187279b19cf451f2d8f58822edab4f)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3f5b05c936b6ed04c0badf5b90b4fcea4e075ab0">3f5b05c9</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-08-21T07:27:31+05:30 </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;'>users-guide: Support both distutils and packaging
As noted in #23818, some old distributions (e.g. Debian 9) only include
`distutils` while newer distributions only include `packaging`.
Fixes #23818.
(cherry picked from commit d814bda97994df01139c2a9bcde915dc86ef2927)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/64f7814a9d4fba6d4ba90f1fb7649e9cd570e044">64f7814a</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-08-21T07:27:31+05:30 </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;'>users-guide: Ensure extlinks is compatible with Sphinx <4
The semantics of the `extlinks` attribute annoyingly changed in Sphinx
4. Reflect this in our configuration. See #22690.
Fixes #23807.
(cherry picked from commit 1726db3f39f1c41b92b1bdf45e9dc054b401e782)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fcce2a20d544b516bc2184bdca4755bcd1904a83">fcce2a20</a></strong>
<div>
<span> by Zubin Duggal </span> <i> at 2023-08-21T07:27:41+05:30 </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;'>Prepare release 9.4.7
</pre>
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30 changed files:
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.gitlab/gen_ci.hs
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compiler/GHC/Core/Opt/SpecConstr.hs
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compiler/GHC/Core/Opt/Specialise.hs
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compiler/GHC/Core/Subst.hs
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compiler/GHC/Plugins.hs
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compiler/GHC/Utils/Binary.hs
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hadrian/src/Settings/Warnings.hs
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