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<div class="content">
<h3 style="margin-top: 20px; margin-bottom: 10px;">
Zubin pushed to branch ghc-9.12 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/83377584f5055b244fbb46c9730340ef50f77f13">83377584</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-12-13T09:52:25+05:30 </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/linker: Fix out-of-bounds mapping logic
Previously the structure of `mmapInRegion` concealed a subtle bug
concerning handling of `mmap` returning mappings below the beginning of
the desired region. Specifically, we would reset `p = result + bytes`
and then again reset `p = region->start` before looping around for
another iteration. This resulted in an infinite loop on FreeBSD.
Fixes #25492.
(cherry picked from commit 292ed74ea908b64490e91346b890cbebdcde37d0)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/194ad79284c38fc18ac2be89ec7fec875f979069">194ad792</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-12-13T09:53:38+05:30 </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/linker/Elf: Resolve _GLOBAL_OFFSET_TABLE_
(cherry picked from commit 952a1243a77ac73222659a49a642b20e80d77cdb)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f5ed23d97dac6912d8059b47db5812f3b186a4ab">f5ed23d9</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-12-13T09:53:50+05:30 </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/linker: Clarify debug output
(cherry picked from commit 20912f5bac6fe4146172accc1849d9b762eb45e3)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/051d8a377c495707d83d640d2ada63d53af724dc">051d8a37</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-12-13T09:54:37+05:30 </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: Allow ExecPage to allocate anywhere in address space
Currently the ExecPage facility has two users:
* GHCi, for constructing info tables, and
* the adjustor allocation path
Despite neither of these have any spatial locality constraints ExecPage
was using the linker's `mmapAnonForLinker`, which tries hard to ensure
that mappings end up nearby the executable image. This makes adjustor
allocation needlessly subject to fragmentation concerns.
We now instead return less constrained mappings, improving the
robustness of the mechanism.
Addresses #25503.
(cherry picked from commit a104508d2ea5bbc61c4a756dca42fc043b329709)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fa0348b8c3c41095ee726d7400cc49f96e6ebc66">fa0348b8</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2024-12-13T09:54:47+05:30 </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: remove -Wl,-U,___darwin_check_fd_set_overflow hack
This patch bumps macOS minimum SDK version to 11.0 for x86_64-darwin
to align it with aarch64-darwin. This allows us to get rid of the
horrible -Wl,-U,___darwin_check_fd_set_overflow hack, which is causing
linker warnings and testsuite failures on macOS 15. Fixes #25504.
(cherry picked from commit 88c4fe1d8a3bdbedf3972fde12f663a974cc2191)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/563a31248617836e9cc89963988093d1ac2aa3df">563a3124</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-12-13T09:54:56+05:30 </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;'>base: Fix incorrect mentions of GHC.Internal.Numeric
These were incorrectly changed by the automated refactoring of the
`ghc-internal` migration.
Fixes #25521.
(cherry picked from commit c3fc9b861fd00a85a4fcbd9960b8242d9fabe04b)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a9e0cfe78ac2af11c05a8548509c531cf8fc2983">a9e0cfe7</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-12-13T09:55:33+05:30 </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;'>testsuite: Handle division-by-zero more gracefully
Previously we would fail with an ZeroDivisionError.
Fixes #25321
(cherry picked from commit 513775082b89deae3f83896031caf0e89a7ed333)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a2c033cf82635c83f3107706634bebee43297b99">a2c033cf</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-12-13T09:55:33+05:30 </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;'>hadrian: Bump directory bound to >=1.3.9
Earlier versions of `directory` are racy on Windows due to #24382.
Also includes necessary Hadrian bootstrap plan bump.
Fixes #24382.
(cherry picked from commit 7890f2d8526dd90584eaa181ab10bd30d90e6743)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/14d80de1848cbe5f51308a43066caba97f4d6fcd">14d80de1</a></strong>
<div>
<span> by Brandon Chinn </span> <i> at 2024-12-13T09:56:20+05:30 </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;'>Fix panic in multiline string with unterminated gap (#25530)
(cherry picked from commit a8ceccf397216f63d609c4f7471506773c98572f)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4ae5ef9442287b56b00d4815c2e74d88d15d9217">4ae5ef94</a></strong>
<div>
<span> by Brandon Chinn </span> <i> at 2024-12-13T09:56:29+05:30 </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;'>Add test case for unterminated multiline string
(cherry picked from commit 9e464ad01f5f60f774504fcaf8d0c30bdd291159)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2feb717eae626f742b5b8a156cade9c5fbaf8bc1">2feb717e</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2024-12-13T09:56:47+05:30 </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;'>typechecker: Perform type family consistency checks in topological order
Consider a module M importing modules A, B and C.
We can waste a lot of work depending on the order that the modules are
checked for family consistency.
Consider that C imports A and B. When compiling C we must have already
checked A and B for consistency, therefore if C is processed first then
A and B will not need to be checked for consistency again.
If A and B are compared first, then the consistency checks will be
performed against (wasted as we already performed them for C).
At the moment the order which modules are checked is non-deterministic.
Clearly we should engineer that C is checked before B and A, but by what
scheme?
A simple one is to observe that if a module M is in the transitive
closure of X then the size of the consistent family set of M is less
than or equal to size of the consistent family set of X.
Therefore by sorting the imports by the size of the consistent family
set and processing the largest first, you make sure to process modules
in topological order.
In practice we have observed that this strategy has reduced the amount
of consistency checks performed.
One solution to #25554
(cherry picked from commit 13fe48d40004d9cdf3c73300a18f144bdc5191d9)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c0b36c68ba4a53929127aa1dd3bd93eb50288638">c0b36c68</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-12-13T09:56:55+05:30 </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;'>testsuite: Add test for #25560
(cherry picked from commit 683115a40fd989a287fa51efe140af9448526098)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/74e42943f4ff1730701e493cd2cd2a4189599524">74e42943</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-12-13T09:57:04+05:30 </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;'>compiler: Don't attempt to TSAN-instrument SIMD operations
TSAN only provides instrumentation for 8, 16, 32, and 64-bit memory
loads/stores. Don't attempt to instrument wider operations.
Fixes #25563.
(cherry picked from commit e745e3a30670440c9cf65450835d4eddada784eb)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f8b36d9b73ac7355eab95d2b9fca1db2f3a78cd1">f8b36d9b</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-12-13T09:57:17+05:30 </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;'>hadrian: Mitigate mktexfmt race
At least some versions of Texlive's `mktexfmt` utility cannot be invoked
concurrently in their initial run since they fail to handle failure of
`mkdir` due to racing. Specifically, we see
```
| Run Xelatex: users_guide.tex => /tmp/extra-dir-9616886274866
| Run Xelatex: Haddock.tex => /tmp/extra-dir-9616886274869
This is XeTeX, Version 3.14159265-2.6-0.999992 (TeX Live 2020) (preloaded format=xelatex)
restricted \write18 enabled.
kpathsea: Running mktexfmt xelatex.fmt
mktexfmt: mktexfmt is using the following fmtutil.cnf files (in precedence order):
mktexfmt: /usr/share/texlive/texmf-dist/web2c/fmtutil.cnf
mktexfmt: mktexfmt is using the following fmtutil.cnf file for writing changes:
mktexfmt: /builds/ghc/ghc/tmp-home/.texlive2020/texmf-config/web2c/fmtutil.cnf
/usr/bin/mktexfmt: mkdir(/builds/ghc/ghc/tmp-home/.texlive2020/texmf-var/web2c/) failed for tree /builds/ghc/ghc/tmp-home/.texlive2020/texmf-var/web2c: File exists at /usr/share/texlive/tlpkg/TeXLive/TLUtils.pm line 937.
I can't find the format file `xelatex.fmt'!
```
That is two `mktexfmt` invocations (for the user's guide and haddock
builds) attempted to create `$HOME/texlive2020/texmf-var/web2c` and
raced. One of the two `mkdir`'s consequently failed, bringing down the
entire build.
We avoid this by ensuring that the first `xelatex` invocation is always
performed serially.
Fixes #25564.
(cherry picked from commit 41dae5b86955094aa4c5647f63f1f52f1a8a5519)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ada12a20d4a4c6a60c5b516867675a846ec4108f">ada12a20</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-12-13T09:57:41+05:30 </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/CheckUnload: Reset old_objects if unload is skipped
Previously `checkUnload` failed to reset `old_objects` when it decided
not to unload (e.g. due to heap profiling being enabled).
Fixes #24935.
(cherry picked from commit 9efbc51f99118e8f9c3abf2bcb6dc3295893ded6)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f43b1d65fa9b9c762f2a7ea07713d91441dd252e">f43b1d65</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-12-13T09:57:53+05:30 </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/CheckUnload: Don't prepare to unload if we can't unload
Previously `prepareUnloadCheck` would move the `objects` list to
`old_objects` even when profiling (where we cannot unload). This caused
us to vacate the `objects` list during major GCs, losing track of loaded
objects. Fix this by ensuring that `prepareUnloadCheck` and
`checkUnload` both use the same short-cutting logic.
(cherry picked from commit 34d3e8e69b62b92cc438514f7fb8e37ce639efea)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5c9c3e3f79a79bb6d9a77a17c716dc3a0bcbd2aa">5c9c3e3f</a></strong>
<div>
<span> by Zubin Duggal </span> <i> at 2024-12-13T10:00:58+05:30 </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;'>Bump Cabal submodule to 3.14.1.0
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/897906265db37af34ae2aaa016cec417f263407b">89790626</a></strong>
<div>
<span> by Zubin Duggal </span> <i> at 2024-12-13T10:16:14+05:30 </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;'>Bump directory submodule to 0.12.2.0
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9321f8b7823561ee17fcd946d34b5dbf6552f5ac">9321f8b7</a></strong>
<div>
<span> by Andreas Klebinger </span> <i> at 2024-12-13T10:24:04+05:30 </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;'>Document -fmax-forced-spec-args=⟨n⟩ in the 9.12 changelog.
Fixes #25544
(cherry picked from commit e2d2645c01d45149420bb07987b1634e577adc04)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/66d66a252639a8900cdd206f65ee5b1d401bfa53">66d66a25</a></strong>
<div>
<span> by Andreas Klebinger </span> <i> at 2024-12-13T10:25:30+05:30 </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;'>Document -fwrite-if-compression in release notes.
(cherry picked from commit 93335a250347ed0591d240701a56ff171a9a5561)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f29620c8b2c1aa1c6dc17d402f5e0d300d49c516">f29620c8</a></strong>
<div>
<span> by Adam Gundry </span> <i> at 2024-12-13T10:27:57+05:30 </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;'>Fix formatting issues and make corrections to 9.12.1 release notes
(cherry picked from commit 6ce3e546083304c4f2da060184b3b73f48dd8fc0)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/15c719f3b6e2e703728d93513105db0fe5097896">15c719f3</a></strong>
<div>
<span> by Zubin Duggal </span> <i> at 2024-12-13T16:59:48+05:30 </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;'>Changelog fixes
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dc86785eb43afd1bd292287c064fb5ad94fe8c7f">dc86785e</a></strong>
<div>
<span> by Zubin Duggal </span> <i> at 2024-12-13T16:59:48+05:30 </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;'>ghcup metatdata: use fedora33 for redhat
Redhat 9 doesn't have libtinfo.so.5 anymore
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fc647a653402db6f946681f0531c0fc444bad443">fc647a65</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-12-13T16:59:48+05:30 </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;'>testsuite: Introduce req_c_rts
As suggested by @hsyl20, this is intended to mark tests that rely on the
behavior of the C RTS.
(cherry picked from commit 1e84b41108d96cb721dd11281105fdf621105a12)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cbfd0829cd61928976c9eb17ba4af18272466063">cbfd0829</a></strong>
<div>
<span> by Zubin Duggal </span> <i> at 2024-12-13T16:59:48+05:30 </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;'>release: copy index.html from correct directory
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0ba478fe4caaa77ada8a3ae39350c523d028c9a9">0ba478fe</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2024-12-13T16:59:48+05:30 </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: Allow happy-2.0.2
happy-2.0.2 can be used to compile GHC.
happy-2.0 and 2.0.1 have bugs which make it unsuitable to use.
The version bound is now == 1.20.* || >= 2.0.2 && < 2.1
Fixes #25276
(cherry picked from commit 0029ca91c845dd4530eb2c4606ad5bd59775cec2)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/24b4914a3bb572c212c595e2ee7541fe78e47a7b">24b4914a</a></strong>
<div>
<span> by Cristiano Moraes </span> <i> at 2024-12-13T16:59:48+05:30 </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: Find C++ probing when GCC version is the latest but G++ is old #23118
(cherry picked from commit 78ad81ecef846f73fee0f6c1a86cd6f19aa29b21)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/95d35d6c05155f18b78cd0d4c59f0a03eb8e6c8c">95d35d6c</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-12-13T16:59:48+05:30 </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: Accept happy-2.1.2
happy-2.1 was released in late Oct 2024. I have confirmed that master
bootstraps with it. Here we teach configure to accept this tool.
Fixes #25438.
(cherry picked from commit 1fd83f865ffb620f4f7c4c59787710206dcadb90)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/86f29950e9cc13e8466937496d55ace4b9d36b9c">86f29950</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-12-13T16:59:48+05:30 </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: Implement ld override whitelist
Bring `configure` into alignment with `ghc-toolchain`, ensuring that the
ld-override logic will only take effect on Linux and Windows.
Fixes #25501.
(cherry picked from commit 992259962191b0b774dfeeabb46729376c7fe7cf)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dde3796be689ea57543936e22aa5ea4ef7ed995e">dde3796b</a></strong>
<div>
<span> by Zubin Duggal </span> <i> at 2024-12-13T23:41:56+05:30 </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;'>hadrian-multi: warn on unused imports
os-string has redundant imports
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/52b58a660e735b20961d792d8fa9267f01247a50">52b58a66</a></strong>
<div>
<span> by Zubin Duggal </span> <i> at 2024-12-13T23:41:56+05:30 </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;'>ghcup metadata: output metadata fragment in CI
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/39e4fed1609957f8e670ac4006698655e780cba7">39e4fed1</a></strong>
<div>
<span> by Zubin Duggal </span> <i> at 2024-12-13T23:41:56+05:30 </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;'>rel-eng: ghcup metadata generation: generated yaml anchors with meaningful names
(cherry picked from commit d83f5bd730a8aef37d8a38b3560590d9798f8e45)
(cherry picked from commit 280b627869da55a22b4b9a3458e6115b06b5fff4)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e226fcf0b33d5b0458620b98a46b392b4e24962d">e226fcf0</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-12-14T14:47:47+05:30 </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;'>ghc-internal: Drop GHC.Internal.Data.Enum
This module consists only of reexports and consequently there is no
reason for it to exist.
(cherry picked from commit 55d8304e02000b3ec33d254794e84d159dc93926)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/227c86d4d022964c8f7ce91d617e075f8f0135ce">227c86d4</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-12-14T14:47:47+05:30 </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;'>base: Introduce Data.Bounded
As proposed in [CLC#208] but unfortunately `Data.Enum` was already
incorrectly introduced in the `ghc-internal` refactor.
[CLC#208]: https://github.com/haskell/core-libraries-committee/issues/208
(cherry picked from commit 56b9f484fd89b5c2c69045dcd5690f68699ba0b1)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ce8458e906e7c91c9980880fdebbe4a6de8ec117">ce8458e9</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-12-14T14:47:47+05:30 </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;'>base: Deprecate export of Bounded from Data.Enum
This begins the process of bringing us into compliance with
[CLC#208].
[CLC#208]: https://github.com/haskell/core-libraries-committee/issues/208
(cherry picked from commit 336d392e417203c492fec15ecf91dd444cb70936)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/65c1928dbf48ac2d529d4e847013fb7ebc2439cb">65c1928d</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-12-14T14:47:47+05:30 </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;'>base: Mention incorrect Data.Enum addition in changelog
(cherry picked from commit dd7ca93903eba8c63261656ca3d245f9e8baa662)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/032b058c30e1920cc853cba5d2123043f0dd99a9">032b058c</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-12-15T21:21:51+05:30 </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;'>base: Reintroduce {Show,Enum} IoSubSystem
These instances were dropped in !9676 but not approved by the CLC.
Addresses #25549.
(cherry picked from commit dfd1db48aaa1ee6c109e9a05ce34672418f17f59)
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dc7c0f8593eac2613f3b9e1785d13a90ec99045f">dc7c0f85</a></strong>
<div>
<span> by Zubin Duggal </span> <i> at 2024-12-15T21:21:51+05:30 </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;'>RELEASE=YES
</pre>
</li>
<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/daf659b6e3c8f2a84100fbee797cd9d457c00df5">daf659b6</a></strong>
<div>
<span> by Zubin Duggal </span> <i> at 2024-12-15T21:28:10+05:30 </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;'>ci: allow test-primops to fail as a workaround to #25582
</pre>
</li>
</ul>
<h4 style="margin-top: 10px; margin-bottom: 10px;">
17 changed files:
</h4>
<ul>
<li class="file-stats">
<a href="#587d266bb27a4dc3022bbed44dfa19849df3044c">
.gitlab-ci.yml
</a>
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<a href="#157f7634c25bc6366cb7c9c9edb48e819dce38db">
.gitlab/ci.sh
</a>
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<li class="file-stats">
<a href="#22c3eac1f084ce55ce48b857bce882e5c7e553a9">
.gitlab/generate-ci/gen_ci.hs
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<a href="#4f7fc727dfc06c2591e6043f44b9602eddfc3673">
.gitlab/jobs.yaml
</a>
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<li class="file-stats">
<a href="#5de9ce8e15f2e9acffcfef9ba02b198531831a17">
.gitlab/rel_eng/fetch-gitlab-artifacts/fetch_gitlab.py
</a>
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<li class="file-stats">
<a href="#87873753e9f32a3fb27939a82d944277fa501572">
.gitlab/rel_eng/mk-ghcup-metadata/mk_ghcup_metadata.py
</a>
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<li class="file-stats">
<a href="#0887cf39c5cdf9cf8d6758f410d7dab3023c0d77">
compiler/GHC/Builtin/Names.hs
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<a href="#194e2602b82bb08fd31c3028aace1da113aae36f">
compiler/GHC/Cmm/ThreadSanitizer.hs
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<a href="#a1ae0a1be35c859d90b0756920a7198075fb91e1">
compiler/GHC/Parser/Lexer.x
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<a href="#07389a8f0516c26409d86f6bb651ed00759b5d4c">
compiler/GHC/Tc/Instance/Family.hs
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<li class="file-stats">
<a href="#e65390fa5a32c453a81a1c9a3e1c4464d155ca4a">
compiler/GHC/Tc/Module.hs
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<li class="file-stats">
<a href="#87db583be5c13c1f7b3c958b10e03d67b6a2ca06">
configure.ac
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<li class="file-stats">
<a href="#f595baeef5a4f6e40ab0d654fa17c31a4f4aec73">
docs/users_guide/9.12.1-notes.rst
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<a href="#2e45f2cd303dd998950a7c8042e796a5b2abd64f">
docs/users_guide/using-optimisation.rst
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<a href="#f644abc1b4dcc16122a571cd3fd554b8d72e6932">
hadrian/bootstrap/plan-9_10_1.json
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<a href="#1084f46e2f053977d1b5e9f351f545f0b25fd7f7">
hadrian/bootstrap/plan-9_6_1.json
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<a href="#4b232c1e28742081c224114368585704fa02e286">
hadrian/bootstrap/plan-9_6_2.json
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The diff was not included because it is too large.
</h5>
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