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<h3 style="margin-top: 20px; margin-bottom: 10px;">
Simon Peyton Jones pushed to branch wip/T23925 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/ff0a709a69753ead88af4948ca7735154f70d363">ff0a709a</a></strong>
<div>
<span> by Sylvain Henry </span> <i> at 2023-09-12T08:46:28-04:00 </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;'>JS: fix some tests

- Tests using Setup programs need to pass --with-hc-pkg
- Several other fixes

See https://gitlab.haskell.org/ghc/ghc/-/wikis/javascript-backend/bug_triage
for the current status
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fc86f0e7618c53036b7c5d3b834b9eb811476c3c">fc86f0e7</a></strong>
<div>
<span> by Krzysztof Gogolewski </span> <i> at 2023-09-12T08:47:04-04:00 </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 in-scope set assertion failure (#23918)

Patch by Simon
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cc8894e2daf21b64b04c4f8d1d3bae92af6afe69">cc8894e2</a></strong>
<div>
<span> by Simon Peyton Jones </span> <i> at 2023-09-12T16:56:57+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;'>Add -fno-cse to T15426 and T18964

This -fno-cse change is to avoid these performance tests depending on
flukey CSE stuff.  Each contains several independent tests, and we don't
want them to interact.

See #23925.

By killing CSE we expect a 400% increase in T15426, and 100% in T18964.

Metric Increase:
    T15426
    T18964
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e50be4c306c4365a205974b730ef703ea4807f1e">e50be4c3</a></strong>
<div>
<span> by Simon Peyton Jones </span> <i> at 2023-09-12T16:56:57+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;'>Tiny refactor

canEtaReduceToArity was only called internally, and always with
two arguments equal to zero.  This patch just specialises the
function, and renames it to cantEtaReduceFun.

No change in behaviour.
</pre>
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<h4 style="margin-top: 10px; margin-bottom: 10px;">
30 changed files:
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<a href="#c3967bb9d3e8f5aae2dd111b5a335b48c21c1999">
compiler/GHC/Core/Opt/Arity.hs
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<a href="#54436e21ea530a66a8a71bcc01c836f4740b8f02">
compiler/GHC/Tc/Solver.hs
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compiler/GHC/Tc/Utils/Instantiate.hs
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<a href="#3f850b361b149ea0d3efde06c0ccf53152419535">
testsuite/tests/backpack/cabal/T14304/Makefile
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testsuite/tests/backpack/cabal/T15594/Makefile
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<a href="#0c359af4d51e5abb6b7aa36d0f035936a0d04adf">
testsuite/tests/backpack/cabal/T15594/all.T
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<a href="#f935fee67d78ddffb0d58c94e9218a7f7e82115e">
testsuite/tests/backpack/cabal/T16219/Makefile
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testsuite/tests/backpack/cabal/bkpcabal03/Makefile
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testsuite/tests/backpack/cabal/bkpcabal06/Makefile
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testsuite/tests/cabal/cabal09/Makefile
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testsuite/tests/cabal/cabal10/Makefile
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<h5 style="margin-top: 10px; margin-bottom: 10px; font-size: 0.875rem;">
The diff was not included because it is too large.
</h5>

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