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<h3 style="margin-top: 20px; margin-bottom: 10px;">
Simon Peyton Jones pushed to branch wip/T25251 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: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d3b19851626411eeea35954ff745dfd7f663ac5c">d3b19851</a></strong>
<div>
<span> by Sylvain Henry </span> <i> at 2024-09-17T11:03:28-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #28272d; 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: expose closure_sizeW_ (#25252)
C code using the closure_sizeW macro can't be linked with the RTS linker
without this patch. It fails with:
ghc-9.11.20240911: Failed to lookup symbol: closure_sizeW_
Fix #25252
Co-authored-by: Hamish Mackenzie <Hamish.K.Mackenzie@gmail.com>
Co-authored-by: Moritz Angermann <moritz.angermann@gmail.com>
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/137bf74df15c6d1240ab6929a84a774f8b990ac1">137bf74d</a></strong>
<div>
<span> by Sebastian Graf </span> <i> at 2024-09-17T11:04:05-04:00 </i>
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<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #28272d; 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;'>HsExpr: Inline `HsWrap` into `WrapExpr`
This nice refactoring was suggested by Simon during review:
https://gitlab.haskell.org/ghc/ghc/-/merge_requests/13261#note_583374
Fixes #25264.
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7fd9e5e29ab54eb406880077463e8552e2ddd39a">7fd9e5e2</a></strong>
<div>
<span> by Sebastian Graf </span> <i> at 2024-09-17T11:04:05-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #28272d; 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;'>Pmc: Improve Desugaring of overloaded list patterns (#25257)
This actually makes things simpler.
Fixes #25257.
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e4169ba910cefbbf9e8fe5770c3f4b43f24bb509">e4169ba9</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-09-18T07:55:28-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #28272d; 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: Correctly report when subsections-via-symbols is disabled
As noted in #24962, currently subsections-via-symbols is disabled on
AArch64/Darwin due to alleged breakage. However, `configure` reports to
the user that it is enabled. Fix this.
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9d20a787490a3b758da89d60eac63c70578f5ad5">9d20a787</a></strong>
<div>
<span> by Mario Blažević </span> <i> at 2024-09-18T07:56:08-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #28272d; 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;'>Modified the default export implementation to match the amended spec
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/35eb4f428ab72b712ea78d6ef86b956e321c3bb2">35eb4f42</a></strong>
<div>
<span> by Sylvain Henry </span> <i> at 2024-09-18T07:57:00-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #28272d; 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;'>FFI: don't ppr Id/Var symbols with debug info (#25255)
Even if `-dpp-debug` is enabled we should still generate valid C code.
So we disable debug info printing when rendering with Code style.
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b29e34b7755c5c10b47b1d7915708cce0cb95c8c">b29e34b7</a></strong>
<div>
<span> by Simon Peyton Jones </span> <i> at 2024-09-20T11:22:46+01:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #28272d; 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 GHC.Tc.Solver.defaultEquality
This MR improves GHC.Tc.Solver.defaultEquality to solve #25251.
The main change is to use checkTyEqRhs to check the equality, so
that we do promotion properly.
But within that we needed a small enhancement to LC_Promote. See
Note [Defaulting equalites] (DE4) and (DE5)
The tricky case is (alas) hard to trigger, so I have not added a
regression test.
</pre>
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compiler/GHC/Hs/Expr.hs
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compiler/GHC/Hs/Syn/Type.hs
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compiler/GHC/Hs/Utils.hs
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compiler/GHC/HsToCore/Expr.hs
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compiler/GHC/HsToCore/Match/Literal.hs
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compiler/GHC/HsToCore/Pmc/Desugar.hs
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compiler/GHC/HsToCore/Ticks.hs
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compiler/GHC/Iface/Ext/Ast.hs
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compiler/GHC/Rename/Pat.hs
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ghc/GHCi/UI/Info.hs
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