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<div class="content">

<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>
</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/34fc28b0d14a7165328f329bf9a2bbdb573148e5">34fc28b0</a></strong>
<div>
<span> by John Ericson </span> <i> at 2023-10-12T06:48:28-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Test that functions from `mingwex` are available

Ryan wrote these two minimizations, but they never got added to the test
suite.

See #23309, #23378

Co-Authored-By: Ben Gamari <bgamari.foss@gmail.com>
Co-Authored-By: Ryan Scott <ryan.gl.scott@gmail.com>
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bdb54a0e9437ecd151693d9c6df76747d6b385ea">bdb54a0e</a></strong>
<div>
<span> by John Ericson </span> <i> at 2023-10-12T06:48:28-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Do not check for the `mingwex` library in `/configure`

See the recent discussion in !10360 --- Cabal will itself check for the
library for the packages that need it, and while the autoconf check
additionally does some other things like define a `HAS_LIBMINGWEX` C
Preprocessor macro, those other things are also unused and unneeded.

Progress towards #17191, which aims to get rid of `/configure` entirely.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/43e814e127f52b73173f8f09d4de777f15dd9ec7">43e814e1</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-10-12T06:49:40-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>base: Introduce move modules into src

The only non-move changes here are whitespace changes to pass the
`whitespace` test and a few testsuite adaptations.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/df81536f2e53abf521a05eb1e482a076f5849c21">df81536f</a></strong>
<div>
<span> by Moritz Angermann </span> <i> at 2023-10-12T06:50:16-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>[PEi386 linker] Bounds check and null-deref guard

We should resonably be able to expect that we won't exceed the number of
sections if we assume to be dealing with legal object files. We can however
not guarantee that we get some negative values, and while we try to
special case most, we should exclude negative indexing into the sections
array.

We also need to ensure that we do not try to derefences targetSection,
if it is NULL, due to the switch statement.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2252b49abb86224474f7706da4bfbcb6d2683a7b">2252b49a</a></strong>
<div>
<span> by John Ericson </span> <i> at 2023-10-12T07:21:05-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Move apple compat check to RTS configure
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a1498c5d3e82369b040a9211eade99379bb6ebb5">a1498c5d</a></strong>
<div>
<span> by John Ericson </span> <i> at 2023-10-12T07:21:05-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Move clock/timer fun checks to RTS configure

Actual library check (which will set the Cabal flag) is left in the
top-level configure for now.

Progress towards #17191
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/886657d5c860b55a03dbd914b1db4449470dd376">886657d5</a></strong>
<div>
<span> by John Ericson </span> <i> at 2023-10-12T07:21:05-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Move visibility and "musttail" annotation checks to the RTS configure

All of this should boil down to `AC_DEFINE` not `AC_SUBST`, so it
belongs in the RTS configure and should be safe to move without
modification.

Progress towards #17191
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7937e2576f503bfd4d65135356e2be5be4f90560">7937e257</a></strong>
<div>
<span> by John Ericson </span> <i> at 2023-10-12T07:21:05-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Move leading underscore checks to RTS configure

`CabalLeadingUnderscore` is done via Hadrian already, so we can stop
`AC_SUBST`ing it completely.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/53371b94e4bf62482a578f2772c224821998c9c8">53371b94</a></strong>
<div>
<span> by John Ericson </span> <i> at 2023-10-12T07:21:05-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Move alloca, fork, const, and big endian checks to RTS configure

All of this should boil down to `AC_DEFINE` not `AC_SUBST`, so it
belongs in the RTS configure and should be safe to move without
modification.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c3ccc32db41aa512ed0868729838eb01107893ed">c3ccc32d</a></strong>
<div>
<span> by John Ericson </span> <i> at 2023-10-12T07:21:06-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Move libdl check to RTS configure
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c51e11e43f88d1bf497aeed993c0ed4c052d3ea4">c51e11e4</a></strong>
<div>
<span> by John Ericson </span> <i> at 2023-10-12T07:21:06-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Adjust `FP_FIND_LIBFFI`

Just set vars, and `AC_SUBST` in top-level configure.

Don't define `HAVE_SYSTEM_LIBFFI` because nothing is using it. It hasn't
be in used since 3609340743c1b25fdfd0e18b1670dac54c8d8623 (part of the
make build system).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b33dd538f1ac69b1979c060fbcca60e649c52981">b33dd538</a></strong>
<div>
<span> by John Ericson </span> <i> at 2023-10-12T07:21:06-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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 BFD support to RTS configure

The flag is still in the top-level configure, but the other checks
(which define various macros --- important) are in the RTS configure.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4e7600af9b5ade6a24069ccfb0ba6f00fa01826e">4e7600af</a></strong>
<div>
<span> by John Ericson </span> <i> at 2023-10-12T07:21:06-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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 libm check between top level and RTS
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/81c169678de4004246212a1c5b2914ac171895ed">81c16967</a></strong>
<div>
<span> by Moritz Angermann </span> <i> at 2023-10-12T07:21:06-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>CgUtils.fixStgRegStmt respect register width

This change ensure that the reg + offset computation is always of the
same size.  Before this we could end up with a 64bit register, and then
add a 32bit offset (on 32bit platforms).  This not only would fail type
sanity checking, but also incorrectly truncate 64bit values into 32bit
values silently on 32bit architectures.
</pre>
</li>
</ul>
<h4 style="margin-top: 10px; margin-bottom: 10px;">
30 changed files:
</h4>
<ul>
<li class="file-stats">
<a href="#a7fcc734b34b00498cf1eb5792d2f328ca3696ea">
compiler/GHC/StgToCmm/CgUtils.hs
</a>
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<li class="file-stats">
<a href="#87db583be5c13c1f7b3c958b10e03d67b6a2ca06">
configure.ac
</a>
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<li class="file-stats">
<a href="#b7cfb47853ef95330e499ca0c5b90964744d101f">
libraries/base/base.cabal
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<li class="file-stats">
<a href="#ebf6ac42b5a7178afb2d4d9e86a90069ef8fafb9">
libraries/base/Control/Applicative.hs

libraries/base/src/Control/Applicative.hs
</a>
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<li class="file-stats">
<a href="#a1ccb9fc50d3fb3a7c16ba11d17484cd88520dfe">
libraries/base/Control/Arrow.hs

libraries/base/src/Control/Arrow.hs
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<a href="#c7a240ddc7435cf826f927d25b247b9e86783c58">
libraries/base/Control/Category.hs

libraries/base/src/Control/Category.hs
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<li class="file-stats">
<a href="#2e0f17331daaae33659159abd77d62332dfa8a9d">
libraries/base/Control/Concurrent.hs

libraries/base/src/Control/Concurrent.hs
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<a href="#8c51f671b308e3fd48c0de5a71b8f2f440566831">
libraries/base/Control/Concurrent.hs-boot

libraries/base/src/Control/Concurrent.hs-boot
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libraries/base/Control/Concurrent/Chan.hs

libraries/base/src/Control/Concurrent/Chan.hs
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<a href="#8d985253c16e44de3a4637e28de78673e9b396bb">
libraries/base/Control/Concurrent/MVar.hs

libraries/base/src/Control/Concurrent/MVar.hs
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<a href="#a4b032bfa8c44fed9fe658326e0509999a2f17e7">
libraries/base/Control/Concurrent/QSem.hs

libraries/base/src/Control/Concurrent/QSem.hs
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libraries/base/Control/Concurrent/QSemN.hs

libraries/base/src/Control/Concurrent/QSemN.hs
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<a href="#d1f7a79361ae6cdc4939449936139b5703ca4c3d">
libraries/base/Control/Exception.hs

libraries/base/src/Control/Exception.hs
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libraries/base/Control/Exception/Base.hs

libraries/base/src/Control/Exception/Base.hs
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<a href="#af2e8ab7e8f2f9cafe7ae8cb634d631524233804">
libraries/base/Control/Monad.hs

libraries/base/src/Control/Monad.hs
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libraries/base/Control/Monad/Fail.hs

libraries/base/src/Control/Monad/Fail.hs
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