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<h3 style="margin-top: 20px; margin-bottom: 10px;">
Apoorv Ingle pushed to branch wip/expansions-appdo 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/b85a4631eb151b55a138371e6f53ae8f9f351d31">b85a4631</a></strong>
<div>
<span> by Brandon Chinn </span> <i> at 2024-03-12T19:25:56-04:00 </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;'>Remove duplicate code normalising slashes
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c91946f994ad8b734b09cf3023f1fc9671a7475a">c91946f9</a></strong>
<div>
<span> by Brandon Chinn </span> <i> at 2024-03-12T19:25:56-04:00 </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;'>Simplify regexes with raw strings
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1a5f53c6d4f3812835b8b72f36d9d23004b38f1f">1a5f53c6</a></strong>
<div>
<span> by Brandon Chinn </span> <i> at 2024-03-12T19:25:57-04:00 </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;'>Don't normalize backslashes in characters
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7ea971d314c4eba59e12e94bf3eb8edb95fbfac5">7ea971d3</a></strong>
<div>
<span> by Andrei Borzenkov </span> <i> at 2024-03-12T19:26:32-04:00 </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;'>Fix compiler crash caused by implicit RHS quantification in type synonyms (#24470)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/39f3ac3e1b47e9fdac8fcf2d1edcc300a37deb82">39f3ac3e</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2024-03-12T19:27:11-04:00 </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;'>Revert "compiler: make genSym use C-based atomic increment on non-JS 32-bit platforms"
This reverts commit 615eb855416ce536e02ed935ecc5a6f25519ae16. It was
originally intended to fix #24449, but it was merely sweeping the bug
under the rug. 3836a110577b5c9343915fd96c1b2c64217e0082 has properly
fixed the fragile test, and we no longer need the C version of genSym.
Furthermore, the C implementation causes trouble when compiling with
clang that targets i386 due to alignment warning and libatomic linking
issue, so it makes sense to revert it.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e6bfb85c842edca36754bb8914e725fbaa1a83a6">e6bfb85c</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2024-03-12T19:27:11-04:00 </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;'>compiler: fix out-of-bound memory access of genSym on 32-bit
This commit fixes an unnoticed out-of-bound memory access of genSym on
32-bit. ghc_unique_inc is 32-bit sized/aligned on 32-bit platforms,
but we mistakenly treat it as a Word64 pointer in genSym, and
therefore will accidentally load 2 garbage higher bytes, or with a
small but non-zero chance, overwrite something else in the data
section depends on how the linker places the data segments. This
regression was introduced in !11802 and fixed here.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/77171cd1d482dbb2776ee06b2454cc2176a891ce">77171cd1</a></strong>
<div>
<span> by Ben Orchard </span> <i> at 2024-03-14T09:00:40-04:00 </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;'>Note mutability of array and address access primops
Without an understanding of immutable vs. mutable memory, the index
primop family have a potentially non-intuitive type signature:
indexOffAddr :: Addr# -> Int# -> a
readOffAddr :: Addr# -> Int# -> State# d -> (# State# d, a #)
indexOffAddr# might seem like a free generality improvement, which it
certainly is not!
This change adds a brief note on mutability expectations for most
index/read/write access primops.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7da7f8f643f1bfc4aa034a731f2f85cda007b286">7da7f8f6</a></strong>
<div>
<span> by Alan Zimmerman </span> <i> at 2024-03-14T09:01:15-04:00 </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;'>EPA: Fix regression discarding comments in contexts
Closes #24533
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/73be65abafcd4db8e3913415ec866f6e89881f22">73be65ab</a></strong>
<div>
<span> by Fendor </span> <i> at 2024-03-19T01:42:53-04:00 </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;'>Fix sharing of 'IfaceTyConInfo' during core to iface type translation
During heap analysis, we noticed that during generation of
'mi_extra_decls' we have lots of duplicates for the instances:
* `IfaceTyConInfo NotPromoted IfaceNormalTyCon`
* `IfaceTyConInfo IsPromoted IfaceNormalTyCon`
which should be shared instead of duplicated. This duplication increased
the number of live bytes by around 200MB while loading the agda codebase
into GHCi.
These instances are created during `CoreToIface` translation, in
particular `toIfaceTyCon`.
The generated core looks like:
toIfaceTyCon
= \ tc_sjJw ->
case $wtoIfaceTyCon tc_sjJw of
{ (# ww_sjJz, ww1_sjNL, ww2_sjNM #) ->
IfaceTyCon ww_sjJz (IfaceTyConInfo ww1_sjNL ww2_sjNM)
}
whichs removes causes the sharing to work propery.
Adding explicit sharing, with NOINLINE annotations, changes the core to:
toIfaceTyCon
= \ tc_sjJq ->
case $wtoIfaceTyCon tc_sjJq of { (# ww_sjNB, ww1_sjNC #) ->
IfaceTyCon ww_sjNB ww1_sjNC
}
which looks much more like sharing is happening.
We confirmed via ghc-debug that all duplications were eliminated and the
number of live bytes are noticeably reduced.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bd8209eb8e447a5ae1d736f034f4a3986e0727f7">bd8209eb</a></strong>
<div>
<span> by Alan Zimmerman </span> <i> at 2024-03-19T01:43:28-04:00 </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;'>EPA: Address more 9.10.1-alpha1 regressions from recent changes
Closes #24533
Hopefully for good this time
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/31bf85ee49fe2ca0b17eaee0774e395f017a9373">31bf85ee</a></strong>
<div>
<span> by Fendor </span> <i> at 2024-03-19T14:48:08-04:00 </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;'>Escape multiple arguments in the settings file
Uses responseFile syntax.
The issue arises when GHC is installed on windows into a location that
has a space, for example the user name is 'Fake User'.
The $topdir will also contain a space, consequentially.
When we resolve the top dir in the string `-I$topdir/mingw/include`,
then `words` will turn this single argument into `-I/C/Users/Fake` and
`User/.../mingw/include` which trips up the flag argument parser of
various tools such as gcc or clang.
We avoid this by escaping the $topdir before replacing it in
`initSettngs`.
Additionally, we allow to escape spaces and quotation marks for
arguments in `settings` file.
Add regression test case to count the number of options after variable
expansion and argument escaping took place.
Additionally, we check that escaped spaces and double quotation marks are
correctly parsed.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f45f700e81928c832a20ab420000b3eda6fa2153">f45f700e</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2024-03-19T14:48:44-04:00 </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;'>Read global package database from settings file
Before this patch, the global package database was always assumed to be
in libdir </> package.conf.d.
This causes issues in GHC's build system because there are sometimes
situations where the package database you need to use is not located in
the same place as the settings file.
* The stage1 compiler needs to use stage1 libraries, so we should set
"Global Package DB" for the stage1 compiler to the stage1 package
database.
* Stage 2 cross compilers need to use stage2 libraries, so likewise, we
should set the package database path to `_build/stage2/lib/`
* The normal situation is where the stage2 compiler uses stage1
libraries. Then everything lines up.
* When installing we have rearranged everything so that the settings
file and package database line up properly, so then everything should
continue to work as before. In this case we set the relative package
db path to `package.conf.d`, so it resolves the same as before.
* ghc-pkg needs to be modified as well to look in the settings file fo
the package database rather than assuming the global package database
location relative to the lib folder.
* Cabal/cabal-install will work correctly because they query the global
package database using `--print-global-package-db`.
A reasonable question is why not generate the "right" settings files in
the right places in GHC's build system. In order to do this you would
need to engineer wrappers for all executables to point to a specific
libdir. There are also situations where the same package db is used by
two different compilers with two different settings files (think stage2
cross compiler and stage3 compiler).
In short, this 10 line patch allows for some reasonable simplifications
in Hadrian at very little cost to anything else.
Fixes #24502
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4c8f179405394e9961b2a7c148f0c650dd24e1e3">4c8f1794</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2024-03-19T14:48:44-04:00 </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;'>hadrian: Remove stage1 testsuite wrappers logic
Now instead of producing wrappers which pass the global package database
argument to ghc and ghc-pkg, we write the location of the correct
package database into the settings file so you can just use the intree
compiler directly.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/da0d8ba56f817b5e450d826413b6448a92fb68f4">da0d8ba5</a></strong>
<div>
<span> by Matthew Craven </span> <i> at 2024-03-19T14:49:20-04:00 </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;'>Remove unused ghc-internal module "GHC.Internal.Constants"
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b56d2761274ca5cd8ed35e5f348f7d6fe1dcd45d">b56d2761</a></strong>
<div>
<span> by Matthew Craven </span> <i> at 2024-03-19T14:49:20-04:00 </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;'>CorePrep: Rework lowering of BigNat# literals
Don't use bigNatFromWord#, because that's terrible:
* We shouldn't have to traverse a linked list at run-time
to build a BigNat# literal. That's just silly!
* The static List object we have to create is much larger
than the actual BigNat#'s contents, bloating code size.
* We have to read the corresponding interface file,
which causes un-tracked implicit dependencies. (#23942)
Instead, encode them into the appropriate platform-dependent
sequence of bytes, and generate code that copies these bytes
at run-time from an Addr# literal into a new ByteArray#.
A ByteArray# literal would be the correct thing to generate,
but these are not yet supported; see also #17747.
Somewhat surprisingly, this change results in a slight
reduction in compiler allocations, averaging around 0.5%
on ghc's compiler performance tests, including when compiling
programs that contain no bignum literals to begin with.
The specific cause of this has not been investigated.
Since this lowering no longer reads the interface file for
GHC.Num.BigNat, the reasoning in Note [Depend on GHC.Num.Integer]
is obsoleted. But the story of un-tracked built-in dependencies
remains complex, and Note [Tracking dependencies on primitives]
now exists to explain this complexity.
Additionally, many empty imports have been modified to refer to
this new note and comply with its guidance. Several empty imports
necessary for other reasons have also been given brief explanations.
Metric Decrease:
MultiLayerModulesTH_OneShot
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/349ea3302bd81daa896e0541b6b8e34a5da16b52">349ea330</a></strong>
<div>
<span> by Fendor </span> <i> at 2024-03-19T14:50:00-04:00 </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;'>Eliminate thunk in 'IfaceTyCon'
Heap analysis showed that `IfaceTyCon` retains a thunk to
`IfaceTyConInfo`, defeating the sharing of the most common instances of
`IfaceTyConInfo`.
We make sure the indirection is removed by adding bang patterns to
`IfaceTyCon`.
Experimental results on the agda code base, where the `mi_extra_decls`
were read from disk:
Before this change, we observe around 8654045 instances of:
`IfaceTyCon[Name,THUNK_1_0]`
But these thunks almost exclusively point to a shared value!
Forcing the thunk a little bit more, leads to `ghc-debug` reporting:
`IfaceTyCon[Name:Name,IfaceTyConInfo]`
and a noticeable reduction of live bytes (on agda ~10%).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/594bee0bb1b5df2f0459acbd5fa69e44a6036e5f">594bee0b</a></strong>
<div>
<span> by Krzysztof Gogolewski </span> <i> at 2024-03-19T14:50:36-04:00 </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;'>Minor misc cleanups
- GHC.HsToCore.Foreign.JavaScript: remove dropRuntimeRepArgs;
boxed tuples don't take RuntimeRep args
- GHC.HsToCore.Foreign.Call: avoid partial pattern matching
- GHC.Stg.Unarise: strengthen the assertion; we can assert that
non-rubbish literals are unary rather than just non-void
- GHC.Tc.Gen.HsType: make sure the fsLit "literal" rule fires
- users_guide/using-warnings.rst: remove -Wforall-identifier,
now deprecated and does nothing
- users_guide/using.rst: fix formatting
- andy_cherry/test.T: remove expect_broken_for(23272...), 23272 is fixed
The rest are simple cleanups.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cf55a54b1aec7a533a4e409b01d08f4923348fa8">cf55a54b</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-03-19T14:51:12-04:00 </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;'>mk/relpath: Fix quoting
Previously there were two instances in this script which lacked proper
quoting. This resulted in `relpath` invocations in the binary
distribution Makefile producing incorrect results on Windows, leading to
confusing failures from `sed` and the production of empty package
registrations.
Fixes #24538.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5ff883896baa238f82da60e5f168bc93cabe48e4">5ff88389</a></strong>
<div>
<span> by Bryan Richter </span> <i> at 2024-03-19T14:51:48-04:00 </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;'>testsuite: Disable T21336a on wasm
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/600233519d465458611918e26819a00a6e3136f6">60023351</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-03-19T22:33:10-04:00 </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;'>hadrian/bindist: Eliminate extraneous `dirname` invocation
Previously we would call `dirname` twice per installed library file.
We now instead reuse this result. This helps appreciably on Windows, where
processes are quite expensive.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/616ac30026e8dd7d2ebb98d92dde071eedf5d951">616ac300</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-03-19T22:33:10-04:00 </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;'>hadrian: Package mingw toolchain in expected location
This fixes #24525, a regression due to 41cbaf44a6ab5eb9fa676d65d32df8377898dc89.
Specifically, GHC expects to find the mingw32 toolchain in the binary distribution
root. However, after this patch it was packaged in the `lib/` directory.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/de9daadeee3998946c244c2fb5c93aa1be7db8e4">de9daade</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-03-19T22:33:11-04:00 </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;'>gitlab/rel_eng: More upload.sh tweaks
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1dfe12db0dbb720bc97a857dec6e1f3f99c26621">1dfe12db</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-03-19T22:33:11-04:00 </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;'>rel_eng: Drop dead prepare_docs codepath
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dd2d748bb4135bffe39df025be55e881b87623df">dd2d748b</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-03-19T22:33:11-04:00 </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;'>rel_env/recompress_all: unxz before recompressing
Previously we would rather compress the xz *again*, before in addition
compressing it with the desired scheme.
Fixes #24545.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9d936c5799daadf96392211b03e38520925aea17">9d936c57</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-03-19T22:33:11-04:00 </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;'>mk-ghcup-metadata: Fix directory of testsuite tarball
As reported in #24546, the `dlTest` artifact should be extracted into
the `testsuite` directory.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6d398066b6084a971248da8ce37bc40c53a83525">6d398066</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-03-19T22:33:11-04:00 </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;'>ghcup-metadata: Don't populate dlOutput unless necessary
ghcup can apparently infer the output name of an artifact from its URL.
Consequently, we should only include the `dlOutput` field when it would
differ from the filename of `dlUri`.
Fixes #24547.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/576f8b7ec292382aaa47fceab504b5abf4cc1f8a">576f8b7e</a></strong>
<div>
<span> by Zubin Duggal </span> <i> at 2024-03-19T22:33:46-04:00 </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;'>Revert "Apply shellcheck suggestion to SUBST_TOOLDIR"
This reverts commit c82770f57977a2b5add6e1378f234f8dd6153392.
The shellcheck suggestion is spurious and results in SUBST_TOOLDIR being a
no-op. `set` sets positional arguments for bash, but we want to set the variable
given as the first autoconf argument.
Fixes #24542
Metric decreases because the paths in the settings file are now shorter,
so we allocate less when we read the settings file.
-------------------------
Metric Decrease:
T12425
T13035
T9198
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cdfe6e01f113dbed9df6703c97207c02fc60303b">cdfe6e01</a></strong>
<div>
<span> by Fendor </span> <i> at 2024-03-19T22:34:22-04:00 </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;'>Compact serialisation of IfaceAppArgs
In #24563, we identified that IfaceAppArgs serialisation tags each
cons cell element with a discriminator byte. These bytes add up
quickly, blowing up interface files considerably when
'-fwrite-if-simplified-core' is enabled.
We compact the serialisation by writing out the length of
'IfaceAppArgs', followed by serialising the elements directly without
any discriminator byte.
This improvement can decrease the size of some interface files by up
to 35%.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/97a2bb1cdfa4b244a58374658aec6d48ce23a54a">97a2bb1c</a></strong>
<div>
<span> by Simon Peyton Jones </span> <i> at 2024-03-20T17:11:29+00:00 </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;'>Expand untyped splices in tcPolyExprCheck
Fixes #24559
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5f27517687c711593a23f1c9e5bd09ad9ec22fa4">5f275176</a></strong>
<div>
<span> by Alan Zimmerman </span> <i> at 2024-03-20T22:44:12-04:00 </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;'>EPA: Clean up Exactprint helper functions a bit
- Introduce a helper lens to compose on `EpAnn a` vs `a` versions
- Rename some prime versions of functions back to non-prime
They were renamed during the rework
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/da2a10ceab7498fbbd5723dee0393ce75f2bb562">da2a10ce</a></strong>
<div>
<span> by Vladislav Zavialov </span> <i> at 2024-03-20T22:44:48-04:00 </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;'>Type operators in promoteOccName (#24570)
Type operators differ from term operators in that they are lexically
classified as (type) constructors, not as (type) variables.
Prior to this change, promoteOccName did not account for this
difference, causing a scoping issue that affected RequiredTypeArguments.
type (!@#) = Bool
f = idee (!@#) -- Not in scope: ‘!@#’ (BUG)
Now we have a special case in promoteOccName to account for this.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/247fc0fa9a0fe1f37fabc5a28640b41d7f665aac">247fc0fa</a></strong>
<div>
<span> by Preetham Gujjula </span> <i> at 2024-03-21T10:19:18-04:00 </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;'>docs: Remove mention of non-existent Ord instance for Complex
The documentation for Data.Complex says that the Ord instance for Complex Float
is deficient, but there is no Ord instance for Complex a. The Eq instance for
Complex Float is similarly deficient, so we use that as an example instead.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6fafc51e9206abd62881131c282ec3b9e1584c5b">6fafc51e</a></strong>
<div>
<span> by Andrei Borzenkov </span> <i> at 2024-03-21T10:19:54-04:00 </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;'>Fix TH handling in `pat_to_type_pat` function (#24571)
There was missing case for `SplicePat` in `pat_to_type_at` function,
hence patterns with splicing that checked against `forall->` doesn't work
properly because they fall into the "illegal pattern" case.
Code example that is now accepted:
g :: forall a -> ()
g $([p| a |]) = ()
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/52072f8e2121fe49a8367027efa3d8db32325f84">52072f8e</a></strong>
<div>
<span> by Sylvain Henry </span> <i> at 2024-03-21T21:01:59-04:00 </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;'>Type-check default declarations before deriving clauses (#24566)
See added Note and #24566. Default declarations must be type-checked
before deriving clauses.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7dfdf3d9fbc216653fe2cf95cc52c35900bdc8b4">7dfdf3d9</a></strong>
<div>
<span> by Sylvain Henry </span> <i> at 2024-03-21T21:02:40-04:00 </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;'>Lexer: small perf changes
- Use unsafeChr because we know our values to be valid
- Remove some unnecessary use of `ord` (return Word8 values directly)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/864922ef8ab97ea6dfe970be69f0c2fa78315b08">864922ef</a></strong>
<div>
<span> by Sylvain Henry </span> <i> at 2024-03-21T21:02:40-04:00 </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;'>JS: fix some comments
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3e0b2b1f14e5e82eaa1dc6fbf8dceb5f539f5aa3">3e0b2b1f</a></strong>
<div>
<span> by Sebastian Graf </span> <i> at 2024-03-21T21:03:16-04:00 </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;'>Simplifier: Re-do dependency analysis in abstractFloats (#24551)
In #24551, we abstracted a string literal binding over a type variable,
triggering a CoreLint error when that binding floated to top-level.
The solution implemented in this patch fixes this by re-doing dependency
analysis on a simplified recursive let binding that is about to be type
abstracted, in order to find the minimal set of type variables to abstract over.
See wrinkle (AB5) of Note [Floating and type abstraction] for more details.
Fixes #24551
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8a8ac65a51fd3163b4a189b427bd495bfdc61cf5">8a8ac65a</a></strong>
<div>
<span> by Matthew Craven </span> <i> at 2024-03-23T00:20:52-04:00 </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;'>Improve toInteger @Word32 on 64-bit platforms
On 64-bit platforms, every Word32 fits in an Int, so we can
convert to Int# without having to perform the overflow check
integerFromWord# uses internally.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0c48f2b952ad4ee995e4eafa458b7a8d3c442415">0c48f2b9</a></strong>
<div>
<span> by Apoorv Ingle </span> <i> at 2024-03-23T00:21:28-04:00 </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;'>Fix for #24552 (see testcase T24552)
Fixes for a bug in desugaring pattern synonyms matches, introduced
while working on on expanding `do`-blocks in #18324
The `matchWrapper` unecessarily (and incorrectly) filtered out the
default wild patterns in a match. Now the wild pattern alternative is
simply ignored by the pm check as its origin is `Generated`.
The current code now matches the expected semantics according to the language spec.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b72705e9b2ae5575aef92ede6ff975bbbe43004d">b72705e9</a></strong>
<div>
<span> by Simon Peyton Jones </span> <i> at 2024-03-23T00:22:04-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: 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;'>Print more info about kinds in error messages
This fixes #24553, where GHC unhelpfully said
error: [GHC-83865]
• Expected kind ‘* -> * -> *’, but ‘Foo’ has kind ‘* -> * -> *’
See Note [Showing invisible bits of types in error messages]
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8f7cfc7ee00978fda14f31ce4a56ad4639c07138">8f7cfc7e</a></strong>
<div>
<span> by Tristan Cacqueray </span> <i> at 2024-03-23T00:22:44-04:00 </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;'>docs: remove the don't use float hint
This hint is outdated, ``Complex Float`` are now specialised,
and the heap space suggestion needs more nuance so it should
be explained in the unboxed/storable array documentation.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5bd8ed53dcefe10b72acb5729789e19ceb22df66">5bd8ed53</a></strong>
<div>
<span> by Andreas Klebinger </span> <i> at 2024-03-23T16:18:33-04:00 </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;'>NCG: Fix a bug in jump shortcutting.
When checking if a jump has more than one destination account for the
possibility of some jumps not being representable by a BlockId.
We do so by having isJumpishInstr return a `Maybe BlockId` where Nothing
represents non-BlockId jump destinations.
Fixes #24507
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8d67f247c3e4ca3810712654e1becbf927405f6b">8d67f247</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2024-03-23T16:19:09-04:00 </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;'>docs: Drop old release notes, add for 9.12.1
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cf1ce2b07e0448fe21a7e981883ddc0c079a7882">cf1ce2b0</a></strong>
<div>
<span> by Apoorv Ingle </span> <i> at 2024-03-24T21:28:39-05:00 </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;'>make applicative do work with expansions, possibly badly
Fixes: #24406
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/76f54dff025b8a10d31d35b6dd6e265674fd070b">76f54dff</a></strong>
<div>
<span> by Apoorv Ingle </span> <i> at 2024-03-24T21:28:39-05:00 </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;'>enable the flow
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c116bb94cebe112c972b730c00cd93f01fa6ff50">c116bb94</a></strong>
<div>
<span> by Apoorv Ingle </span> <i> at 2024-03-24T21:28:39-05:00 </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;'>renaming do_or_lc to doFlavour and debugging error contexts
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/63eefc730233a42098bdaea6b6341db05cba0c92">63eefc73</a></strong>
<div>
<span> by Apoorv Ingle </span> <i> at 2024-03-24T21:28:39-05:00 </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;'>testcases
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6d953a6a91b32bf638c64b3ed4cf12208cd5f6ee">6d953a6a</a></strong>
<div>
<span> by Apoorv Ingle </span> <i> at 2024-03-24T21:28:39-05:00 </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;'>make sure app do expression statements location is mapped correctly
</pre>
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