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<h3 style="margin-top: 20px; margin-bottom: 10px;">
Marge Bot pushed to branch wip/marge_bot_batch_merge_job at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
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Commits:
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<ul>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/267098ad7ff183ae483555571f6f8b1c751456ba">267098ad</a></strong>
<div>
<span> by Andreas Klebinger </span> <i> at 2024-12-18T23:43:13-05:00 </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;'>Document `-prof` and non `-prof` code being incompatible.
Fixes #25518.
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/04433916cdedab80114cbed1dc399ae816bada91">04433916</a></strong>
<div>
<span> by Zubin Duggal </span> <i> at 2024-12-18T23:43:50-05:00 </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;'>ghcup metadata: output metadata fragment in CI
(cherry picked from commit 52b58a660e735b20961d792d8fa9267f01247a50)
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</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7c78804e3b25d2c0246cd1f3ce0d4015431e5831">7c78804e</a></strong>
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<span> by Zubin Duggal </span> <i> at 2024-12-18T23:43:50-05:00 </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;'>ghcup metatdata: use fedora33 for redhat
Redhat 9 doesn't have libtinfo.so.5 anymore
(cherry picked from commit dc86785eb43afd1bd292287c064fb5ad94fe8c7f)
</pre>
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<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1d72cfb2c1054bc8a399855d5c68443c969d2f66">1d72cfb2</a></strong>
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<span> by Zubin Duggal </span> <i> at 2024-12-18T23:43:50-05:00 </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;'>ghcup metadata: still use centos for redhat <9
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/38ca39da1208891c63d889f9f5c0649fccf345e5">38ca39da</a></strong>
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<span> by Sylvain Henry </span> <i> at 2024-12-19T11:49:56-05:00 </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;'>Merge ghc-bignum into ghc-internal (#24453)
First step towards merging ghc-bignum and ghc-prim into ghc-internal.
After this patch, ghc-bignum is deprecated and is just a shallow package
reexporting modules from ghc-internal and base. Use those directly
instead.
Move `gmp` submodule into ghc-internal directory.
</pre>
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<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/aeee6f4489a293d72cd2627aa541ec4266694c99">aeee6f44</a></strong>
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<span> by Rodrigo Mesquita </span> <i> at 2024-12-19T11:49:56-05:00 </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 performance of deriving Show
Significantly improves performance of deriving Show instances by
avoiding using the very polymorphic `.` operator in favour of inlining
its definition. We were generating tons of applications of it, each
which had 3 type arguments!
Improves on #9557
-------------------------
Metric Decrease:
InstanceMatching
T12707
T3294
------------------------
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e4b1f64351c1f64bbb6769dd2efc51d302597e13">e4b1f643</a></strong>
<div>
<span> by Rodrigo Mesquita </span> <i> at 2024-12-19T11:49:56-05:00 </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;'>Don't eta expand cons when deriving Data
This eta expansion was introduced with the initial commit for Linear
types.
I believe this isn't needed any longer. My guess is it is an artifact
from the initial linear types implementation: data constructors are
linear, but they shouldn't need to be eta expanded to be used as higher
order functions. I suppose in the early days this wasn't true.
For instance, this works now:
data T x = T x
f = \(x :: forall y. y -> T y) -> x True
f T -- ok!
T is linear, but can be passed where an unrestricted higher order
function is expected. I recall there being some magic around to make
this work for data constructors...
Since this works, there's no need to eta_expand the data constructors in
the derived Data instances.
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