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<h3 style="margin-top: 20px; margin-bottom: 10px;">
Marge Bot pushed to branch wip/marge_bot_batch_merge_job at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
</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/61a2dfaa1ab4e1502c0ab00818150de0a033412a">61a2dfaa</a></strong>
<div>
<span> by Bodigrim </span> <i> at 2023-03-30T14:35:57-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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 {-# WARNING #-} to Data.List.{head,tail}
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8f15c47c729236e647a7aa147751afa0320f2e70">8f15c47c</a></strong>
<div>
<span> by Bodigrim </span> <i> at 2023-03-30T14:35:57-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Fixes to accomodate Data.List.{head,tail} with {-# WARNING #-}
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7c7dbade771dabaf33a2f0e0675e26865a213968">7c7dbade</a></strong>
<div>
<span> by Bodigrim </span> <i> at 2023-03-30T14:35:57-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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 submodules
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d2d8251b32a3546bb4984c9bd027917883ab4969">d2d8251b</a></strong>
<div>
<span> by Bodigrim </span> <i> at 2023-03-30T14:35:57-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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 tests
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3d38dcb6e4b6ceeeeac79570faa42c33bfd10dfc">3d38dcb6</a></strong>
<div>
<span> by sheaf </span> <i> at 2023-03-30T14:35:57-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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;'>Proxies for head and tail: review suggestions</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/930edcfd10f00d98c746f2198d59546034943ac6">930edcfd</a></strong>
<div>
<span> by sheaf </span> <i> at 2023-03-30T14:36:33-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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: move RecordUpd changelog entry to 9.8
This was accidentally included in the 9.6 changelog
instead of the 9.6 changelog.</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6f885e6575eb741556d6e198d1a9dbdadf10307b">6f885e65</a></strong>
<div>
<span> by sheaf </span> <i> at 2023-03-30T14:37:09-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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 LANGUAGE GADTs to GHC.Rename.Env
We need to enable this extension for the file to compile with ghc 9.2,
as we are pattern matching on a GADT and this required the GADT extension
to be enabled until 9.4.</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6d6a37a8f7dd136b067edfe0d4860a77e15e4186">6d6a37a8</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2023-03-30T18:42:56+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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: make lint-ci-config job fast again
We don't pin our nixpkgs revision and tracks the default
nixpkgs-unstable channel anyway. Instead of using
haskell.packages.ghc924, we should be using haskell.packages.ghc92 to
maximize the binary cache hit rate and make lint-ci-config job fast
again. Also bumps the nix docker image to the latest revision.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ef1548c499d69a156d9f0772c859e0e5cdb0892b">ef1548c4</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2023-03-30T18:42:56+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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: ensure that all non-i386 pipelines do parallel xz compression
We can safely enable parallel xz compression for non-i386 pipelines.
However, previously we didn't export XZ_OPT, so the xz process won't
see it if XZ_OPT hasn't already been set in the current job.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/20432d16d9a367528f59858b1acad2fae539e993">20432d16</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2023-03-30T18:42:56+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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: unset CROSS_EMULATOR for js job
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4a24dbbe2cb4ec5311af01321d1721e8964d0672">4a24dbbe</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2023-03-30T18:42:56+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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: fix lint-testsuite job
The list_broken make target will transitively depend on the
calibrate.out target, which used STAGE1_GHC instead of TEST_HC. It
really should be TEST_HC since that's what get passed in the gitlab CI
config.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cea56ccca154d477d858f3b25008df42b68a2b17">cea56ccc</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2023-03-30T18:42:56+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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: use alpine3_17-wasm image for wasm jobs
Bump the ci-images dependency and use the new alpine3_17-wasm docker
image for wasm jobs.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/79d0cb3210e71bc5eca97af7e12a654134336d1f">79d0cb32</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-03-30T18:43:53+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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/driver: Add basic support for testing cross-compilers
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e7392b4ecb39166328e60358e302108b6a9339b9">e7392b4e</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-03-30T18:43:53+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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/driver: Normalize away differences in ghc executable name
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ee160d067fe319d73f64c8131c11873d6e065152">ee160d06</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-03-30T18:43:53+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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: Pass CROSS_EMULATOR to runtests.py
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/30c84511af8ad70705bbde98d0ba73cdbb1d8565">30c84511</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2023-03-30T18:43:53+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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: don't add optllvm way for wasm32
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f1beee369840b42183d17ab6175fd860f14f869d">f1beee36</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2023-03-30T18:43:53+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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: normalize the .wasm extension
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a984a103ce08faf907d08980fa2e58cacf3aa531">a984a103</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2023-03-30T18:43:53+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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: strip the cross ghc prefix in output and error message
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f7478d9543293cd78ce81c1aa730cc3025cffe9e">f7478d95</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2023-03-30T18:43:53+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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 target executable extension
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8fe8b65390bdbd6b51af42a227300c46cca89b3b">8fe8b653</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2023-03-30T18:43:53+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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: mypy typing error fixes
This patch fixes some mypy typing errors which weren't caught in
previous linting jobs.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0149f32fc8cc805ff368e5b3e36051d0d1898550">0149f32f</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2023-03-30T18:43:53+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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: use context variable instead of thread-local variable
This patch changes a thread-local variable to context variable
instead, which works as intended when the testsuite transitions to use
asyncio & coroutines instead of multi-threading to concurrently run
test cases. Note that this also raises the minimum Python version to
3.7.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ea853ff066afb4d4f2271b24be898693e2a3e18d">ea853ff0</a></strong>
<div>
<span> by Cheng Shao </span> <i> at 2023-03-30T18:43:53+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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: asyncify the testsuite driver
This patch refactors the testsuite driver, gets rid of multi-threading
logic for running test cases concurrently, and uses asyncio &
coroutines instead. This is not yak shaving for its own sake; the
previous multi-threading logic is prone to livelock/deadlock
conditions for some reason, even if the total number of threads is
bounded to a thread pool's capacity.
The asyncify change is an internal implementation detail of the
testsuite driver and does not impact most GHC maintainers out there.
The patch does not touch the .T files, test cases can be
added/modified the exact same way as before.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f361393418831461e4b8949e4b7dd0bf4ae6909d">f3613934</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-03-31T10:47:38-04:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "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 for T23184
There was an outright bug, which Simon fixed in July 2021, as a little side-fix on a complicated patch:
```
commit 6656f0165a30fc2a22208532ba384fc8e2f11b46
Author: Simon Peyton Jones <simonpj@microsoft.com>
Date: Fri Jul 23 23:57:01 2021 +0100
A bunch of changes related to eta reduction
This is a large collection of changes all relating to eta
reduction, originally triggered by #18993, but there followed
a long saga.
Specifics:
...lots of lines omitted...
Other incidental changes
* Fix a fairly long-standing outright bug in the ApplyToVal case of
GHC.Core.Opt.Simplify.mkDupableContWithDmds. I was failing to take the
tail of 'dmds' in the recursive call, which meant the demands were All
Wrong. I have no idea why this has not caused problems before now.
```
Note this "Fix a fairly longstanding outright bug". This is the specific fix
```
@@ -3552,8 +3556,8 @@ mkDupableContWithDmds env dmds
-- let a = ...arg...
-- in [...hole...] a
-- NB: sc_dup /= OkToDup; that is caught earlier by contIsDupable
- do { let (dmd:_) = dmds -- Never fails
- ; (floats1, cont') <- mkDupableContWithDmds env dmds cont
+ do { let (dmd:cont_dmds) = dmds -- Never fails
+ ; (floats1, cont') <- mkDupableContWithDmds env cont_dmds cont
; let env' = env `setInScopeFromF` floats1
; (_, se', arg') <- simplArg env' dup se arg
; (let_floats2, arg'') <- makeTrivial env NotTopLevel dmd (fsLit "karg") arg'
```
Ticket #23184 is a report of the bug that this diff fixes.
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