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<div class="content">
<h3 style="margin-top: 20px; margin-bottom: 10px;">
Rodrigo Mesquita pushed to branch wip/romes/fixes 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/838aaf4b6e7020c87023b2daaee2afe6bca821f5">838aaf4b</a></strong>
<div>
<span> by hainq </span> <i> at 2023-05-24T12:41:19-04:00 </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;'>Migrate errors in GHC.Tc.Validity
This patch migrates the error messages in GHC.Tc.Validity to use
the new diagnostic infrastructure.
It adds the constructors:
- TcRnSimplifiableConstraint
- TcRnArityMismatch
- TcRnIllegalInstanceDecl, with sub-datatypes for HasField errors
and fundep coverage condition errors.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8539764b2be769a68dc2fbbf9f48399441cab9fa">8539764b</a></strong>
<div>
<span> by Krzysztof Gogolewski </span> <i> at 2023-05-24T12:41:56-04:00 </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;'>linear lint: Add missing processing of DEFAULT
In this correct program
f :: a %1 -> a
f x = case x of x { _DEFAULT -> x }
after checking the alternative we weren't popping the case binder 'x'
from the usage environment, which meant that the lambda-bound 'x'
was counted twice: in the scrutinee and (incorrectly) in the alternative.
In fact, we weren't checking the usage of 'x' at all.
Now the code for handling _DEFAULT is similar to the one handling
data constructors.
Fixes #23025.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ae683454e66913ad735269b09f89a49cf6a7101d">ae683454</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-24T12:42:32-04:00 </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;'>Remove outdated "Don't check hs-boot type family instances too early" note
This note was introduced in 25b70a29f623 which delayed performing some
consistency checks for type families. However, the change was reverted
later in 6998772043a7f0b0360116eb5ffcbaa5630b21fb but the note was not
removed.
I found it confusing when reading to code to try and work out what
special behaviour there was for hs-boot files (when in-fact there isn't
any).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/44af57de685482550791083ed4ecbb2776885a1b">44af57de</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-24T12:43:08-04:00 </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;'>rts: Define ticky macro stubs
These macros have long been undefined which has meant we were missing
reporting these allocations in ticky profiles.
The most critical missing definition was TICK_ALLOC_HEAP_NOCTR which was
missing all the RTS calls to allocate, this leads to a the overall
ALLOC_RTS_tot number to be severaly underreported.
Of particular interest though is the ALLOC_STACK_ctr and ALLOC_STACK_tot
counters which are useful to tracking stack allocations.
Fixes #23421
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b2dabe3a845f0068e40396fd82a8d97b29896564">b2dabe3a</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-24T12:43:08-04:00 </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;'>rts: ticky: Rename TICK_ALLOC_HEAP_NOCTR to TICK_ALLOC_RTS
This macro increments the ALLOC_HEAP_tot and ALLOC_HEAP_ctr so it makes
more sense to name it after that rather than the suffix NOCTR, whose
meaning has been lost to the mists of time.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/eac4420a8aab12a830037a4b65789d307aec0456">eac4420a</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-05-24T12:43:45-04:00 </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;'>users guide: A few small mark-up fixes
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a320ca761c47ea90f9083165f44537bc939cccf6">a320ca76</a></strong>
<div>
<span> by Rodrigo Mesquita </span> <i> at 2023-05-24T12:44:20-04:00 </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;'>configure: Fix support check for response files.
In failing to escape the '-o' in '-o\nconftest\nconftest.o\n' argument
to printf, the writing of the arguments response file always failed.
The fix is to pass the arguments after `--` so that they are treated
positional arguments rather than flags to printf.
Closes #23435
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f21ce0e4357d527d29595ce32491b02ae3d6a564">f21ce0e4</a></strong>
<div>
<span> by mangoiv </span> <i> at 2023-05-24T12:45:00-04:00 </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;'>[feat] add .direnv to the .gitignore file
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/36d5944d13866e8c0d6634c38bb7a2f32fe98512">36d5944d</a></strong>
<div>
<span> by Bodigrim </span> <i> at 2023-05-24T20:58:34-04:00 </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 Data.List.unsnoc
See https://github.com/haskell/core-libraries-committee/issues/165 for discussion
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c0f2f9e37e625208a521fa5b7289b5fe37f94258">c0f2f9e3</a></strong>
<div>
<span> by Bartłomiej Cieślar </span> <i> at 2023-05-24T20:59:14-04:00 </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 crash in backpack signature merging with -ddump-rn-trace
In some cases, backpack signature merging could crash in addUsedGRE
when -ddump-rn-trace was enabled, as pretty-printing the GREInfo would cause
unavailable interfaces to be loaded.
This commit fixes that issue by not pretty-printing the GREInfo in addUsedGRE
when -ddump-rn-trace is enabled.
Fixes #23424
Signed-off-by: Bartłomiej Cieślar <bcieslar2001@gmail.com>
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5a07d94a037876f61eb17dbf4401074a50509f3b">5a07d94a</a></strong>
<div>
<span> by Krzysztof Gogolewski </span> <i> at 2023-05-25T03:30:20-04:00 </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 a regression test for #13981
The panic was fixed by 6998772043a7f0b. Fixes #13981.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/182df90e4d1f652c3d078294921805b9b982671b">182df90e</a></strong>
<div>
<span> by Krzysztof Gogolewski </span> <i> at 2023-05-25T03:30:57-04:00 </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 a test for #23355
It was fixed by !10061, so I'm adding it in the same group.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1b31b0391231e596eb28e54441f31dc45f63e2f8">1b31b039</a></strong>
<div>
<span> by uhbif19 </span> <i> at 2023-05-25T12:08:28+02:00 </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;'>Migrate errors in GHC.Rename.Splice GHC.Rename.Pat
This commit migrates the errors in GHC.Rename.Splice and GHC.Rename.Pat
to use the new diagnostic infrastructure.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/56abe494fac648a97b06f30b6855901291bed8bc">56abe494</a></strong>
<div>
<span> by sheaf </span> <i> at 2023-05-25T12:09:55+02:00 </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;'>Common up Template Haskell errors in TcRnMessage
This commit commons up the various Template Haskell errors into a
single constructor, TcRnTHError, of TcRnMessage.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a487ba9e55b9c6a131a781985d624f23c5d90867">a487ba9e</a></strong>
<div>
<span> by Krzysztof Gogolewski </span> <i> at 2023-05-25T14:35:56-04:00 </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;'>Enable ghci tests for unboxed tuples
The tests were originally skipped because ghci used not to support
unboxed tuples/sums.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dc3422d44b89bcd4315075cafb4585d08e463180">dc3422d4</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-25T18:57:19-04:00 </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;'>rts: Build ticky GHC with single-threaded RTS
The threaded RTS allows you to use ticky profiling but only for the
counters in the generated code. The counters used in the C portion of
the RTS are disabled. Updating the counters is also racy using the
threaded RTS which can lead to misleading or incorrect ticky results.
Therefore we change the hadrian flavour to build using the
single-threaded RTS (mainly in order to get accurate C code counter
increments)
Fixes #23430
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fbc8e04e5d8fb05ff60568042802ab2fb34e1a70">fbc8e04e</a></strong>
<div>
<span> by sheaf </span> <i> at 2023-05-25T18:58:00-04:00 </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;'>Propagate long-distance info in generated code
When desugaring generated pattern matches, we skip pattern match checks.
However, this ended up also discarding long-distance information, which
might be needed for user-written sub-expressions.
Example:
```haskell
okay (GADT di) cd =
let sr_field :: ()
sr_field = case getFooBar di of { Foo -> () }
in case cd of { SomeRec _ -> SomeRec sr_field }
```
With sr_field a generated FunBind, we still want to propagate the outer
long-distance information from the GADT pattern match into the checks
for the user-written RHS of sr_field.
Fixes #23445
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f8ced2411aaa92570ddad7848b8f5a60ac8927ed">f8ced241</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-26T15:26:21-04:00 </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;'>Introduce GHCiMessage to wrap GhcMessage
By introducing a wrapped message type we can control how certain
messages are printed in GHCi (to add extra information for example)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/58e554c1cb1d25efd4af5b693bed5c4f2ea7697c">58e554c1</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-26T15:26:22-04:00 </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;'>Generalise UnknownDiagnostic to allow embedded diagnostics to access
parent diagnostic options.
* Split default diagnostic options from Diagnostic class into
HasDefaultDiagnosticOpts class.
* Generalise UnknownDiagnostic to allow embedded diagnostics to access
options.
The principle idea here is that when wrapping an error message (such as
GHCMessage to make GHCiMessage) then we need to also be able to lift the
configuration when overriding how messages are printed (see load' for an
example).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b112546afa694efc0ae20d9d6c00b572a75c0239">b112546a</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-26T15:26:22-04:00 </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;'>Allow API users to wrap error messages created during 'load'
This allows API users to configure how messages are rendered when they
are emitted from the load function. For an example see how
'loadWithCache' is used in GHCi.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2e4cf0ee4862884064a026702948b044ad3d5792">2e4cf0ee</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-26T15:26:22-04:00 </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;'>Abstract cantFindError and turn Opt_BuildingCabal into a print-time option
* cantFindError is abstracted so that the parts which mention specific
things about ghc/ghci are parameters. The intention being that
GHC/GHCi can specify the right values to put here but otherwise
display the same error message.
* The BuildingCabalPackage argument from GenericMissing is removed and
turned into a print-time option. The reason for the error is not
dependent on whether `-fbuilding-cabal-package` is passed, so we don't
want to store that in the error message.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/34b44f7d22883ef89784c727c25f0dae225be8d2">34b44f7d</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-26T15:26:22-04:00 </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;'>error messages: Don't display ghci specific hints for missing packages
Tickets like #22884 suggest that it is confusing that GHC used on the
command line can suggest options which only work in GHCi.
This ticket uses the error message infrastructure to override certain
error messages which displayed GHCi specific information so that this
information is only showed when using GHCi.
The main annoyance is that we mostly want to display errors in the same
way as before, but with some additional information. This means that the
error rendering code has to be exported from the Iface/Errors/Ppr.hs
module.
I am unsure about whether the approach taken here is the best or most
maintainable solution.
Fixes #22884
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/05a1b626066bc6ae2d85714bc855861b236f4d98">05a1b626</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-26T15:26:58-04:00 </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;'>ghcup-metadata: Don't override existing metadata if version already exists.
If a nightly pipeline runs twice for some reason for the same version
then we really don't want to override an existing entry with new
bindists. This could cause ABI compatability issues for users or break
ghcup's caching logic.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fcbcb3cc6c333c354f34f8eef4abfc69edaae534">fcbcb3cc</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-26T15:26:58-04:00 </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;'>ghcup-metadata: Use proper API url for bindist download
Previously we were using links from the web interface, but it's more
robust and future-proof to use the documented links to the artifacts.
https://docs.gitlab.com/ee/api/job_artifacts.html
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5b59c8fe608749921c20680f8d7758aebd989128">5b59c8fe</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-26T15:26:58-04:00 </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;'>ghcup-metadata: Set Nightly and LatestNightly tags
The latest nightly release needs the LatestNightly tag, and all other
nightly releases need the Nightly tag. Therefore when the metadata is
updated we need to replace all LatestNightly with Nightly.`
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/914e1468a6236f7699b7bdf261f5bbfefd71f713">914e1468</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-26T15:26:58-04:00 </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;'>ghcup-metadata: Download nightly metadata for correct date
The metadata now lives in https://gitlab.haskell.org/ghc/ghcup-metadata
with one metadata file per year. When we update the metadata we download
and update the right file for the current year.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/16cf7d2ec29f9cbd65e20ad896f83eff7e49484e">16cf7d2e</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-26T15:26:58-04:00 </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;'>ghcup-metadata: Download metadata and update for correct year
something about pipeline date
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/14792c4b383a37566b8e255a9ad04c9556e77281">14792c4b</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-26T15:26:58-04:00 </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;'>ghcup-metadata: Don't skip CI
On a push we now have a CI job which updates gitlab pages with the
metadata files.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1121bdd858b165cca41f11c57b6c821b90b7f936">1121bdd8</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-26T15:26:59-04:00 </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;'>ghcup-metadata: Add --date flag to specify the release date
The ghcup-metadata now has a viReleaseDay field which needs to be
populated with the day of the release.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bc478bee6e7e46bcf30212ab94545a83bdeb0203">bc478bee</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-26T15:26:59-04:00 </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;'>ghcup-metadata: Add dlOutput field
ghcup now requires us to add this field which specifies where it should
download the bindist to. See
https://gitlab.haskell.org/ghc/ghcup-metadata/-/issues/1 for some more
discussion.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2bdbd9da5a3a43a40743df3bf31b861c5c926a85">2bdbd9da</a></strong>
<div>
<span> by Josh Meredith </span> <i> at 2023-05-26T15:27:35-04:00 </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;'>JS: Convert rendering to use HLine instead of SDoc (#22455)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/abd9e37ced25bd5c20d11934e937b92c00f62f6f">abd9e37c</a></strong>
<div>
<span> by Norman Ramsey </span> <i> at 2023-05-26T15:28:12-04:00 </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;'>testsuite: add WasmControlFlow test
This patch adds the WasmControlFlow test to test the wasm backend's
relooper component.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/07f858eb1ff419b5190f6999f0d4dd5ba275b40c">07f858eb</a></strong>
<div>
<span> by Sylvain Henry </span> <i> at 2023-05-26T15:28:53-04:00 </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;'>Factorize getLinkDeps
Prepare reuse of getLinkDeps for TH implementation in the JS backend
(cf #22261 and review of !9779).
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fad9d092b8a81fe3661db3d18a1a02fda3dd2fe1">fad9d092</a></strong>
<div>
<span> by Oleg Grenrus </span> <i> at 2023-05-27T13:38:08-04:00 </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;'>Change GHC.Driver.Session import to .DynFlags
Also move targetPlatform selector
Plenty of GHC needs just DynFlags.
Even more can be made to use .DynFlags if more selectors is migrated.
This is a low hanging fruit.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/69fdbece5f6ca0a718bb9f1fef7b0ab57cf6b664">69fdbece</a></strong>
<div>
<span> by Alan Zimmerman </span> <i> at 2023-05-27T13:38:45-04:00 </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;'>EPA: Better fix for #22919
The original fix for #22919 simply removed the ability to match up
prior comments with the first declaration in the file.
Restore it, but add a check that the comment is on a single line, by
ensuring that it comes immediately prior to the next thing (comment or
start of declaration), and that the token preceding it is not on the
same line.
closes #22919
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0350b1865f392cf9590c82b5194b62e63770aa44">0350b186</a></strong>
<div>
<span> by Josh Meredith </span> <i> at 2023-05-29T12:46:27+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;'>Remove JavaScriptFFI from --supported-extensions for non-JS targets (#11214)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b48169194bfbfdbfd23ef4cad80212a13e262717">b4816919</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-05-30T17:07:43-04:00 </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;'>testsuite: Pass -kb16k -kc128k for performance tests
Setting a larger stack chunk size gives a greater protection
from stack thrashing (where the repeated overflow/underflow allocates a lot of
stack chunks which sigificantly impact allocations). This
stabilises some tests against differences cause by more things being
pushed onto the stack.
The performance tests are generally testing work done by the compiler,
using allocation as a proxy, so removing/stabilising the allocations due
to the stack gives us more stable tests which are also more sensitive
to actual changes in compiler performance.
The tests which increase are ones where we compile a lot of modules, and
for each module we spawn a thread to compile the module in. Therefore
increasing these numbers has a multiplying effect on these tests because
there are many more stacks which we can increase in size.
The most significant improvements though are cases such as T8095 which
reduce significantly in allocations (30%). This isn't a performance
improvement really but just helps stabilise the test against this
threshold set by the defaults.
Fixes #23439
-------------------------
Metric Decrease:
InstanceMatching
T14683
T8095
T9872b_defer
T9872d
T9961
hie002
T19695
T3064
Metric Increase:
MultiLayerModules
T13701
T14697
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6629f1c58a714405ba94e93d54a9c471f6f62914">6629f1c5</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-05-30T17:08:20-04:00 </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;'>Move via-C flags into GHC
These were previously hardcoded in configure (with no option for
overriding them) and simply passed onto ghc through the settings file.
Since configure already guarantees gcc supports those flags, we simply
move them into GHC.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/981e5e11f41a11c0d58fa61faea2fe4a5ef02d00">981e5e11</a></strong>
<div>
<span> by Arnaud Spiwack </span> <i> at 2023-05-31T08:34:33-04:00 </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;'>Allow CPR on unrestricted constructors
Per the new `Note [Linting linearity]`, we want optimisations over
trying to preserve linearity. This will allow CPR to handle `Ur`, in
particular.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bf9344d24157986ea013210e7cb9a5953670e0e2">bf9344d2</a></strong>
<div>
<span> by Arnaud Spiwack </span> <i> at 2023-05-31T08:34:33-04:00 </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;'>Push coercions across multiplicity boundaries
Per the new `Note [Linting linearity]`, we want optimisations over
trying to preserve linearity. This will avoid preventing inlinings and
reductions and make linear programs more efficient.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d56dd6957dccb187e11155e61a113a6aea1da653">d56dd695</a></strong>
<div>
<span> by sheaf </span> <i> at 2023-05-31T11:37:12-04:00 </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;'>Data.Bag: add INLINEABLE to polymorphic functions
This commit allows polymorphic methods in GHC.Data.Bag to be
specialised, avoiding having to pass explicit dictionaries when they
are instantiated with e.g. a known monad.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5366cd35df5522bd9a1d2897b47280925c3fcff8">5366cd35</a></strong>
<div>
<span> by sheaf </span> <i> at 2023-05-31T11:37:12-04:00 </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;'>Split off TcBinderStack into its own module
This commit splits off TcBinderStack into its own module,
to avoid module cycles: we might want to refer to it without also
pulling in the TcM monad.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/09d4d307924369ceb1e3ba056c38227f85581f34">09d4d307</a></strong>
<div>
<span> by sheaf </span> <i> at 2023-05-31T11:37:12-04:00 </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;'>Split off TcRef into its own module
This helps avoid pull in the full TcM monad when we just want access
to mutable references in the typechecker. This facilitates later patches
which introduce a slimmed down TcM monad for zonking.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/88cc19b33286398745df1b04566ebc056d48cc04">88cc19b3</a></strong>
<div>
<span> by sheaf </span> <i> at 2023-05-31T11:37:12-04:00 </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;'>Introduce Codensity monad
The Codensity monad is useful to write state-passing computations in
continuation-passing style, e.g. to implement a State monad as
continuation-passing style over a Reader monad.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f62d81954691e1f1f4e4ac1c86b0d99bbc31cbc4">f62d8195</a></strong>
<div>
<span> by sheaf </span> <i> at 2023-05-31T11:37:12-04:00 </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;'>Restructure the zonker
This commit splits up the zonker into a few separate components, described
in Note [The structure of the zonker] in `GHC.Tc.Zonk.Type`.
1. `GHC.Tc.Zonk.Monad` introduces a pared-down `TcM` monad, `ZonkM`,
which has enough information for zonking types.
This allows us to refactor `ErrCtxt` to use `ZonkM` instead of `TcM`,
which guarantees we don't throw an error while reporting an error.
2. `GHC.Tc.Zonk.Env` is the new home of `ZonkEnv`, and also defines
two zonking monad transformers, `ZonkT` and `ZonkBndrT`.
`ZonkT` is a reader monad transformer over `ZonkEnv`.
`ZonkBndrT m` is the codensity monad over `ZonkT m`.
`ZonkBndrT` is used for computations that accumulate binders
in the `ZonkEnv`.
3. `GHC.Tc.Zonk.TcType` contains the code for zonking types, for use
in the typechecker. It uses the `ZonkM` monad.
4. `GHC.Tc.Zonk.Type` contains the code for final zonking to `Type`,
which has been refactored to use `ZonkTcM = ZonkT TcM` and
`ZonkBndrTcM = ZonkBndrT TcM`.
Allocations slightly decrease on the whole due to using
continuation-passing style instead of manual state passing of ZonkEnv
in the final zonking to Type.
-------------------------
Metric Decrease:
T4029
T8095
T14766
T15304
hard_hole_fits
RecordUpdPerf
Metric Increase:
T10421
-------------------------
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/70526f5bd8886126f49833ef20604a2c6477780a">70526f5b</a></strong>
<div>
<span> by mimi.vx </span> <i> at 2023-05-31T11:37:53-04:00 </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;'>Update rdt-theme to latest upstream version
Fixes https://gitlab.haskell.org/ghc/ghc/-/issues/23444
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f3556d6cefd3d923b36bfcda0c8185abb1d11a91">f3556d6c</a></strong>
<div>
<span> by Finley McIlwaine </span> <i> at 2023-06-01T04:53:12-04:00 </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;'>Restructure IPE buffer layout
Reference ticket #21766
This commit restructures IPE buffer list entries to not contain
references to their corresponding info tables. IPE buffer list nodes now
point to two lists of equal length, one holding the list of info table
pointers and one holding the corresponding entries for each info table.
This will allow the entry data to be compressed without losing the
references to the info tables.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5d1f2411f4becea8650d12d168e989241edee186">5d1f2411</a></strong>
<div>
<span> by Finley McIlwaine </span> <i> at 2023-06-01T04:53:12-04:00 </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 IPE compression to configure
Reference ticket #21766
Adds an `--enable-ipe-data-compreesion` flag to the configure script
which will check for libzstd and set the appropriate flags to allow for
IPE data compression in the compiler
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b7a640acf7adc2880e5600d69bcf2918fee85553">b7a640ac</a></strong>
<div>
<span> by Finley McIlwaine </span> <i> at 2023-06-01T04:53:12-04:00 </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;'>IPE data compression
Reference ticket #21766
When IPE data compression is enabled, compress the emitted IPE buffer
entries and decompress them in the RTS.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5aef5658ad5fb96bac7719710e0ea008bf7b62e0">5aef5658</a></strong>
<div>
<span> by Finley McIlwaine </span> <i> at 2023-06-01T04:53:12-04:00 </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 libzstd detection in configure and RTS
Ensure that `HAVE_LIBZSTD` gets defined to either 0 or 1 in all cases
and properly check that before IPE data decompression in the RTS. See
ticket #21766.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/69563c97396b8fde91678fae7d2feafb7ab9a8b0">69563c97</a></strong>
<div>
<span> by Finley McIlwaine </span> <i> at 2023-06-01T04:53:12-04:00 </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 note describing IPE data compression
See ticket #21766
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7872e2b6f08ea40d19a251c4822a384d0b397327">7872e2b6</a></strong>
<div>
<span> by Finley McIlwaine </span> <i> at 2023-06-01T04:53:12-04:00 </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 byte order of IPE data, fix IPE tests
Make sure byte order of written IPE buffer entries matches target.
Make sure the IPE-related tests properly access the fields of IPE buffer
entry nodes with the new IPE layout.
This commit also introduces checks to avoid importing modules if IPE
compression is not enabled.
See ticket #21766.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0e85099b9316ee24565084d5586bb7290669b43a">0e85099b</a></strong>
<div>
<span> by Finley McIlwaine </span> <i> at 2023-06-01T04:53:12-04:00 </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 IPE data decompression buffer allocation
Capacity of buffers allocated for decompressed IPE data was
incorrect due to a misuse of the `ZSTD_findFrameCompressedSize`
function. Fix by always storing decompressed size of IPE data in IPE
buffer list nodes and using `ZSTD_findFrameCompressedSize` to determine
the size of the compressed data.
See ticket #21766
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a00488665cd890a26a5564a64ba23ff12c9bec58">a0048866</a></strong>
<div>
<span> by Finley McIlwaine </span> <i> at 2023-06-01T04:53:12-04:00 </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 optional dependencies to ./configure output
Changes the configure script to indicate whether libnuma, libzstd, or
libdw are being used as dependencies due to their optional features
being enabled.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/09d93bd0305b0f73422ce7edb67168c71d32c15f">09d93bd0</a></strong>
<div>
<span> by Finley McIlwaine </span> <i> at 2023-06-01T04:53:12-04:00 </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 IPE-enabled builds to CI
- Adds an IPE job to the CI pipeline which is triggered by the ~IPE label
- Introduces CI logic to enable IPE data compression
- Enables uncompressed IPE data on debug CI job
- Regenerates jobs.yaml
MR https://gitlab.haskell.org/ghc/ci-images/-/merge_requests/112 on the
images repository is meant to ensure that the proper images have
libzstd-dev installed.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3ded9a1cd22f9083f31bc2f37ee1b37f9d25dab7">3ded9a1c</a></strong>
<div>
<span> by Finley McIlwaine </span> <i> at 2023-06-01T04:53:12-04:00 </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;'>Update user's guide and release notes, small fixes
Add mention of IPE data compression to user's guide and the release
notes for 9.8.1. Also note the impact compression has on binary size in
both places.
Change IpeBufferListNode compression check so only the value `1`
indicates compression.
See ticket #21766
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/41b41577c8a28c236fa37e8f73aa1c6dc368d951">41b41577</a></strong>
<div>
<span> by Finley McIlwaine </span> <i> at 2023-06-01T04:53:12-04:00 </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;'>Remove IPE enabled builds from CI
We don't need to explicitly specify the +ipe transformer to test IPE data
since there are tests which manually enable IPE information. This commit does
leave zstd IPE data compression enabled on the debian CI jobs.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/982bef3aa8cabffe6a4b4662f53f7f8c781b7212">982bef3a</a></strong>
<div>
<span> by Krzysztof Gogolewski </span> <i> at 2023-06-01T04:53:49-04:00 </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 build with 9.2
GHC.Tc.Zonk.Type uses an equality constraint.
ghc.nix currently provides 9.2.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1c96bc3d786b13af593c0d336772cc86ea0ac5e2">1c96bc3d</a></strong>
<div>
<span> by Krzysztof Gogolewski </span> <i> at 2023-06-01T10:56:11-04:00 </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;'>Output Lint errors to stderr instead of stdout
This is a continuation of 7b095b99, which fixed warnings but not errors.
Refs #13342
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8e81f140c6e8297273ef20addbcf71be54fbe28e">8e81f140</a></strong>
<div>
<span> by sheaf </span> <i> at 2023-06-01T10:56:51-04:00 </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;'>Refactor lookupExactOrOrig & friends
This refactors the panoply of renamer lookup functions relating to
lookupExactOrOrig to more graciously handle Exact and Orig names.
In particular, we avoid the situation in which we would add Exact/Orig
GREs to the tcg_used_gres field, which could cause a panic in bestImport
like in #23240.
Fixes #23428
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5d415bfd1cd3894919bf07474846835aacb3a975">5d415bfd</a></strong>
<div>
<span> by Krzysztof Gogolewski </span> <i> at 2023-06-01T10:57:31-04:00 </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;'>Use the one-shot trick for UM and RewriteM functors
As described in Note [The one-shot state monad trick],
we shouldn't use derived Functor instances for monads using
one-shot. This was done for most of them, but UM and RewriteM
were missed.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2c38551ea42ef596ffdbed196c87207f64815582">2c38551e</a></strong>
<div>
<span> by Krzysztof Gogolewski </span> <i> at 2023-06-01T10:58:08-04:00 </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 testsuite skipping Lint
setTestOpts() is used to modify the test options for an entire .T file,
rather than a single test.
If there was a test using collect_compiler_stats, all of the tests
in the same file had lint disabled.
Fixes #21247
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/00a1e50b65354f65f508408d171ec1af4045dd95">00a1e50b</a></strong>
<div>
<span> by Krzysztof Gogolewski </span> <i> at 2023-06-01T10:58:44-04:00 </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 testcases for already fixed #16432
They were fixed by 40c7daed0.
Fixes #16432
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f6e060ccc37effcc28acc76d841ad364b009cce7">f6e060cc</a></strong>
<div>
<span> by Krzysztof Gogolewski </span> <i> at 2023-06-02T09:07:25-04:00 </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;'>cleanup: Remove unused field from SelfBoot
It is no longer needed since Note [Extra dependencies from .hs-boot files]
was deleted in 6998772043.
I've also added tildes to Note headers, otherwise they're not detected
by the linter.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/82eacab6b0a714ea63c911cd332bc6fdf7ec960e">82eacab6</a></strong>
<div>
<span> by sheaf </span> <i> at 2023-06-02T09:08:01-04:00 </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;'>Delete GHC.Tc.Utils.Zonk
This module was split up into GHC.Tc.Zonk.Type and GHC.Tc.Zonk.TcType
in commit f62d8195, but I forgot to delete the original module</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4a4eb761ffb9c691eb53e95137273457cda4486d">4a4eb761</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-06-02T23:53:21-04:00 </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;'>base: Add build-order import of GHC.Types in GHC.IO.Handle.Types
For reasons similar to those described in Note [Depend on
GHC.Num.Integer].
Fixes #23411.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f53ac0ae30adf699dae02131bcece8be074d9737">f53ac0ae</a></strong>
<div>
<span> by Sylvain Henry </span> <i> at 2023-06-02T23:54:01-04:00 </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;'>JS: fix and enhance non-minimized code generation (#22455)
Flag -ddisable-js-minimizer was producing invalid code. Fix that and
also a few other things to generate nicer JS code for debugging.
The added test checks that we don't regress when using the flag.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f7744e8e48362879ba4fae226763cfc7db1bdecb">f7744e8e</a></strong>
<div>
<span> by Andrey Mokhov </span> <i> at 2023-06-03T16:49:44-04:00 </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;'>[hadrian] Fix multiline synopsis rendering
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b2c745db6a817993dcef03551243a2fd2b3ea756">b2c745db</a></strong>
<div>
<span> by Bodigrim </span> <i> at 2023-06-03T16:50:23-04:00 </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;'>Elaborate on performance properties of Data.List.++
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7cd8a61e7fa497dbf907237ab7533b92816e5b0b">7cd8a61e</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-05T11:46:23+01:00 </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;'>Big TcLclEnv and CtLoc refactoring
The overall goal of this refactoring is to reduce the dependency
footprint of the parser and syntax tree. Good reasons include:
- Better module graph parallelisability
- Make it easier to migrate error messages without introducing module loops
- Philosophically, there's not reason for the AST to depend on half the
compiler.
One of the key edges which added this dependency was
> GHC.Hs.Expr -> GHC.Tc.Types (TcLclEnv)
As this in turn depending on TcM which depends on HscEnv and so on.
Therefore the goal of this patch is to move `TcLclEnv` out of
`GHC.Tc.Types` so that `GHC.Hs.Expr` can import TcLclEnv without
incurring a huge dependency chain.
The changes in this patch are:
* Move TcLclEnv from GHC.Tc.Types to GHC.Tc.Types.LclEnv
* Create new smaller modules for the types used in TcLclEnv
New Modules:
- GHC.Tc.Types.ErrCtxt
- GHC.Tc.Types.BasicTypes
- GHC.Tc.Types.TH
- GHC.Tc.Types.LclEnv
- GHC.Tc.Types.CtLocEnv
- GHC.Tc.Errors.Types.PromotionErr
Removed Boot File:
- {-# SOURCE #-} GHC.Tc.Types
* Introduce TcLclCtxt, the part of the TcLclEnv which doesn't
participate in restoreLclEnv.
* Replace TcLclEnv in CtLoc with specific CtLocEnv which is defined in
GHC.Tc.Types.CtLocEnv. Use CtLocEnv in Implic and CtLoc to record the
location of the implication and constraint.
By splitting up TcLclEnv from GHC.Tc.Types we allow GHC.Hs.Expr to no
longer depend on the TcM monad and all that entails.
Fixes #23389 #23409
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3d8d39d1c2ec2068bf12a2fd50139ab1ccc7667c">3d8d39d1</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-05T11:46:23+01:00 </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;'>Remove dependency of GHC.Tc.Utils.TcType on GHC.Driver.Session
This removes the usage of DynFlags from Tc.Utils.TcType so that it no
longer depends on GHC.Driver.Session. In general we don't want anything
which is a dependency of Language.Haskell.Syntax to depend on
GHC.Driver.Session and removing this edge gets us closer to that goal.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/18db5ada4df8023342db325b18414f9131df4ed4">18db5ada</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-05T11:46:23+01:00 </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;'>Move isIrrefutableHsPat to GHC.Rename.Utils and rename to isIrrefutableHsPatRn
This removes edge from GHC.Hs.Pat to GHC.Driver.Session, which makes
Language.Haskell.Syntax end up depending on GHC.Driver.Session.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/12919dd5864b5c9086de6816c401219cb4f63a05">12919dd5</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-05T11:46:23+01:00 </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;'>Remove dependency of GHC.Tc.Types.Constraint on GHC.Driver.Session
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/eb8523711b6e5cbcccfab5d17001747d648e7b69">eb852371</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-05T11:46:24+01:00 </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;'>hole fit plugins: Split definition into own module
The hole fit plugins are defined in terms of TcM, a type we want to
avoid depending on from `GHC.Tc.Errors.Types`. By moving it into its own
module we can remove this dependency. It also simplifies the necessary
boot file.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9e5246d70919dd0b6722ce0cdbc865c82f7680ea">9e5246d7</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-05T11:46:24+01:00 </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;'>Move GHC.Core.Opt.CallerCC Types into separate module
This allows `GHC.Driver.DynFlags` to depend on these types without
depending on CoreM and hence the entire simplifier pipeline.
We can also remove a hs-boot file with this change.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/52d6a7d762e30a88a8992b5a260665769265d793">52d6a7d7</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-05T11:46:24+01:00 </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;'>Remove unecessary SOURCE import
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/698d160cb5dec68c0aa27920bbd7f03a312e4760">698d160c</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-05T11:46:24+01:00 </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: Accept new output for CountDepsAst and CountDepsParser tests
These are in a separate commit as the improvement to these tests is the
cumulative effect of the previous set of patches rather than just the
responsibility of the last one in the patchset.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/58ccf02eb33073739c2849b3d9215a3d36906bc6">58ccf02e</a></strong>
<div>
<span> by sheaf </span> <i> at 2023-06-05T16:00:47-04:00 </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;'>TTG: only allow VarBind at GhcTc
The VarBind constructor of HsBind is only used at the GhcTc stage.
This commit makes that explicit by setting the extension field of
VarBind to be DataConCantHappen at all other stages.
This allows us to delete a dead code path in GHC.HsToCore.Quote.rep_bind,
and remove some panics.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/54b83253e6a02e6a3d01caecc78e4c3ad9c00934">54b83253</a></strong>
<div>
<span> by Matthew Craven </span> <i> at 2023-06-06T12:59:25-04:00 </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;'>Generate Addr# access ops programmatically
The existing utils/genprimopcode/gen_bytearray_ops.py was
relocated and extended for this purpose. Additionally, hadrian
now knows about this script and uses it when generating primops.txt
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ecadbc7e7eda5b854b7dcbff7f1dee2dd2c0883c">ecadbc7e</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-06T13:00:01-04:00 </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;'>ghcup-metadata: Only add Nightly tag when replacing LatestNightly
Previously we were always adding the Nightly tag, but this led to all
the previous builds getting an increasing number of nightly tags over
time. Now we just add it once, when we remove the LatestNightly tag.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4aea0a72040e862ab518d911057905e8cf8d15fb">4aea0a72</a></strong>
<div>
<span> by Vladislav Zavialov </span> <i> at 2023-06-07T12:06:46+02:00 </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;'>Invisible binders in type declarations (#22560)
This patch implements @k-binders introduced in GHC Proposal #425
and guarded behind the TypeAbstractions extension:
type D :: forall k j. k -> j -> Type
data D @k @j a b = ...
^^ ^^
To represent the new syntax, we modify LHsQTyVars as follows:
- hsq_explicit :: [LHsTyVarBndr () pass]
+ hsq_explicit :: [LHsTyVarBndr (HsBndrVis pass) pass]
HsBndrVis is a new data type that records the distinction between
type variable binders written with and without the @ sign:
data HsBndrVis pass
= HsBndrRequired
| HsBndrInvisible (LHsToken "@" pass)
The rest of the patch updates GHC, template-haskell, and haddock
to handle the new syntax.
Parser:
The PsErrUnexpectedTypeAppInDecl error message is removed.
The syntax it used to reject is now permitted.
Renamer:
The @ sign does not affect the scope of a binder, so the changes to
the renamer are minimal. See rnLHsTyVarBndrVisFlag.
Type checker:
There are three code paths that were updated to deal with the newly
introduced invisible type variable binders:
1. checking SAKS: see kcCheckDeclHeader_sig, matchUpSigWithDecl
2. checking CUSK: see kcCheckDeclHeader_cusk
3. inference: see kcInferDeclHeader, rejectInvisibleBinders
Helper functions bindExplicitTKBndrs_Q_Skol and bindExplicitTKBndrs_Q_Tv
are generalized to work with HsBndrVis.
Updates the haddock submodule.
Metric Increase:
MultiLayerModulesTH_OneShot
Co-authored-by: Simon Peyton Jones <simon.peytonjones@gmail.com>
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b76009974ff34fe7730fc0343a1977dd1a3183e2">b7600997</a></strong>
<div>
<span> by Josh Meredith </span> <i> at 2023-06-07T13:10:21-04:00 </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;'>JS: clean up FFI 'fat arrow' calls in base:System.Posix.Internals (#23481)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e5d3940d80ee4b05db47e8a0e80207766d8dc934">e5d3940d</a></strong>
<div>
<span> by Sebastian Graf </span> <i> at 2023-06-07T18:01:28-04:00 </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;'>Update CODEOWNERS</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/960ef11105496641c114f3b2f0786119f2cc7208">960ef111</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </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;'>Revert "Remove IPE enabled builds from CI"
This reverts commit 41b41577c8a28c236fa37e8f73aa1c6dc368d951.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bad1c8ccadb16652c7d808aacbd697a6e5e5ec72">bad1c8cc</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </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;'>Revert "Update user's guide and release notes, small fixes"
This reverts commit 3ded9a1cd22f9083f31bc2f37ee1b37f9d25dab7.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/12726d90df5e7bd57f6c9086aa7452cf46be482b">12726d90</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </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;'>Revert "Add IPE-enabled builds to CI"
This reverts commit 09d93bd0305b0f73422ce7edb67168c71d32c15f.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dbdd989dff2606426248e8df9034a4ff6e2c030d">dbdd989d</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </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;'>Revert "Add optional dependencies to ./configure output"
This reverts commit a00488665cd890a26a5564a64ba23ff12c9bec58.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/240483af5ef8b5097d6095eacdb2288cc5f92141">240483af</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </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;'>Revert "Fix IPE data decompression buffer allocation"
This reverts commit 0e85099b9316ee24565084d5586bb7290669b43a.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9b8c7dd8518854216f3d309fa16bec8fdc47b78e">9b8c7dd8</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </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;'>Revert "Fix byte order of IPE data, fix IPE tests"
This reverts commit 7872e2b6f08ea40d19a251c4822a384d0b397327.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3364379bc7e20e7a61f94e038e85df6b70896933">3364379b</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </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;'>Revert "Add note describing IPE data compression"
This reverts commit 69563c97396b8fde91678fae7d2feafb7ab9a8b0.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fda30670f70a7ab9c69e72983c378e628965eae5">fda30670</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </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;'>Revert "Fix libzstd detection in configure and RTS"
This reverts commit 5aef5658ad5fb96bac7719710e0ea008bf7b62e0.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1cbcda9ad6a2081e2519ca74148542d175423b2e">1cbcda9a</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </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;'>Revert "IPE data compression"
This reverts commit b7a640acf7adc2880e5600d69bcf2918fee85553.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fb5e99aad3b70e10753f25f9280c1882ccbed2af">fb5e99aa</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </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;'>Revert "Add IPE compression to configure"
This reverts commit 5d1f2411f4becea8650d12d168e989241edee186.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2cdcb3a59ac8f52fe0871490aa0d047e2d23cf6e">2cdcb3a5</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-07T18:02:04-04:00 </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;'>Revert "Restructure IPE buffer layout"
This reverts commit f3556d6cefd3d923b36bfcda0c8185abb1d11a91.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2b0c9f5ef026df6dd2637aacce05a11d74146296">2b0c9f5e</a></strong>
<div>
<span> by Simon Peyton Jones </span> <i> at 2023-06-08T07:52:34+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;'>Don't report redundant Givens from quantified constraints
This fixes #23323
See (RC4) in Note [Tracking redundant constraints]
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/567b32e12cbae07bee78d66252e83a0ad08419be">567b32e1</a></strong>
<div>
<span> by David Binder </span> <i> at 2023-06-08T18:41:29-04:00 </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;'>Update the outdated instructions in HACKING.md on how to compile GHC
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2b1a4abe3f5935ca58c84c6073e6bdfa5160832f">2b1a4abe</a></strong>
<div>
<span> by Ryan Scott </span> <i> at 2023-06-09T07:56:58-04:00 </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;'>Restore mingwex dependency on Windows
This partially reverts some of the changes in !9475 to make `base` and
`ghc-prim` depend on the `mingwex` library on Windows. It also restores the
RTS's stubs for `mingwex`-specific symbols such as `_lock_file`.
This is done because the C runtime provides `libmingwex` nowadays, and
moreoever, not linking against `mingwex` requires downstream users to link
against it explicitly in difficult-to-predict circumstances. Better to always
link against `mingwex` and prevent users from having to do the guesswork
themselves.
See https://gitlab.haskell.org/ghc/ghc/-/merge_requests/10360#note_495873 for
the discussion that led to this.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/289547580b6f2808ee123f106c3118b716486d5b">28954758</a></strong>
<div>
<span> by Ryan Scott </span> <i> at 2023-06-09T07:56:58-04:00 </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;'>RtsSymbols.c: Remove mingwex symbol stubs
As of !9475, the RTS now links against `ucrt` instead of `msvcrt` on Windows,
which means that the RTS no longer needs to declare stubs for the `__mingw_*`
family of symbols. Let's remove these stubs to avoid confusion.
Fixes #23309.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3ab0155b43e3a4a15217206a0731993b604fb958">3ab0155b</a></strong>
<div>
<span> by Ryan Scott </span> <i> at 2023-06-09T07:57:35-04:00 </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;'>Consistently use validity checks for TH conversion of data constructors
We were checking that TH-spliced data declarations do not look like this:
```hs
data D :: Type = MkD Int
```
But we were only doing so for `data` declarations' data constructors, not for
`newtype`s, `data instance`s, or `newtype instance`s. This patch factors out
the necessary validity checks into its own `cvtDataDefnCons` function and uses
it in all of the places where it needs to be.
Fixes #22559.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a24b83ddabac6b7eeb63db13884e4403f71375dd">a24b83dd</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-09T15:19:00-04:00 </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 behaviour of -keep-tmp-files when used in OPTIONS_GHC pragma
This fixes the behaviour of -keep-tmp-files when used in an OPTIONS_GHC
pragma for files with module level scope.
Instead of simple not deleting the files, we also need to remove them
from the TmpFs so they are not deleted later on when all the other files
are deleted.
There are additional complications because you also need to remove the
directory where these files live from the TmpFs so we don't try to
delete those later either.
I added two tests.
1. Tests simply that -keep-tmp-files works at all with a single module
and --make mode.
2. The other tests that temporary files are deleted for other modules
which don't enable -keep-tmp-files.
Fixes #23339
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/dcf3288273d2418800e2dee97c937673a1d38a8f">dcf32882</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-09T15:19:00-04:00 </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;'>withDeferredDiagnostics: When debugIsOn, write landmine into IORef to catch use-after-free.
Ticket #23305 reports an error where we were attempting to use the
logger which was created by withDeferredDiagnostics after its scope had
ended.
This problem would have been caught by this patch and a validate build:
```
+*** Exception: Use after free
+CallStack (from HasCallStack):
+ error, called at compiler/GHC/Driver/Make.hs:<line>:<column> in <package-id>:GHC.Driver.Make
```
This general issue is tracked by #20981
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/432c736c19446a011fca1f9485c67761c991bd42">432c736c</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-09T15:19:00-04:00 </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;'>Don't return complete HscEnv from upsweep
By returning a complete HscEnv from upsweep the logger (as introduced by
withDeferredDiagnostics) was escaping the scope of
withDeferredDiagnostics and hence we were losing error messages.
This is reminiscent of #20981, which also talks about writing errors
into messages after their scope has ended.
See #23305 for details.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/26013cdc40183c1b7ee4b5674750133d17f73a72">26013cdc</a></strong>
<div>
<span> by Alexander McKenna </span> <i> at 2023-06-09T15:19:41-04:00 </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;'>Dump `SpecConstr` specialisations separately
Introduce a `-ddump-spec-constr` flag which debugs specialisations from
`SpecConstr`. These are no longer shown when you use `-ddump-spec`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4639100b5dd19fe2cabb36f7e457826e44a579aa">4639100b</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-09T18:50:43-04:00 </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 role annotations to SNat, SSymbol and SChar
Ticket #23454 explained it was possible to implement unsafeCoerce
because SNat was lacking a role annotation.
As these are supposed to be singleton types but backed by an efficient
representation the correct annotation is nominal to ensure these kinds
of coerces are forbidden.
These annotations were missed from https://github.com/haskell/core-libraries-committee/issues/85
which was implemented in 532de36870ed9e880d5f146a478453701e9db25d.
CLC Proposal: https://github.com/haskell/core-libraries-committee/issues/170
Fixes #23454
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9c0dcff72ff763828cacb6ff7af99899acfe06b4">9c0dcff7</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-09T18:51:19-04:00 </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;'>Remove non-existant bytearray-ops.txt.pp file from ghc.cabal.in
This broke the sdist generation.
Fixes #23489
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/273ff0c786965de805976e52c8367a036f4f8d95">273ff0c7</a></strong>
<div>
<span> by David Binder </span> <i> at 2023-06-09T18:52:00-04:00 </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;'>Regression test T13438 is no longer marked as "expect_broken" in the testsuite driver.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b84a29005ac0b258e0bad04b0acf933b71bd6e98">b84a2900</a></strong>
<div>
<span> by Andrei Borzenkov </span> <i> at 2023-06-10T08:27:28-04:00 </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 -Wterm-variable-capture scope (#23434)
-Wterm-variable-capture wasn't accordant with type variable
scoping in associated types, in type classes. For example,
this code produced the warning:
k = 12
class C k a where
type AT a :: k -> Type
I solved this issue by reusing machinery of newTyVarNameRn function
that is accordand with associated types: it does lookup for each free type
variable when we are in the type class context. And in this patch I
use result of this work to make sure that -Wterm-variable-capture warns
only on implicitly quantified type variables.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9d1a8d87c2364321f27f4fc224a7042d5e47612d">9d1a8d87</a></strong>
<div>
<span> by Jorge Mendes </span> <i> at 2023-06-10T08:28:10-04:00 </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;'>Remove redundant case statement in rts/js/mem.js.</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a1f350e24733e28465c53ed3f5c2b5481b97dc69">a1f350e2</a></strong>
<div>
<span> by Oleg Grenrus </span> <i> at 2023-06-13T09:42:16-04:00 </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;'>Change WarningWithFlag to plural WarningWithFlags
Resolves #22825
Now each diagnostic can name multiple different warning flags for its reason.
There is currently one use case: missing signatures.
Currently we need to check which warning flags are enabled when
generating the diagnostic, which is against the declarative nature of
the diagnostic framework.
This patch allows a warning diagnostic to have multiple warning flags,
which makes setup more declarative.
The WarningWithFlag pattern synonym is added for backwards compatibility
The 'msgEnvReason' field is added to MsgEnvelope to store the
`ResolvedDiagnosticReason`, which accounts for the enabled flags, and
then that is used for pretty printing the diagnostic.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ec01f0ec5877f5cacb4c3a6ba3f18d2d0d900f9c">ec01f0ec</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-13T09:42:59-04:00 </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 a test Way for running ghci with Core optimizations
Tracking ticket: #23059
This runs compile_and_run tests with optimised code with bytecode
interpreter
Changed submodules: hpc, process
Co-authored-by: Torsten Schmits <git@tryp.io>
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c6741e72f639f4d8e650b5f7c374aac498218584">c6741e72</a></strong>
<div>
<span> by Rodrigo Mesquita </span> <i> at 2023-06-13T09:43:38-04:00 </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;'>Configure -Qunused-arguments instead of hardcoding it
When GHC invokes clang, it currently passes -Qunused-arguments to
discard warnings resulting from GHC using multiple options that aren't
used.
In this commit, we configure -Qunused-arguments into the Cc options
instead of checking if the compiler is clang at runtime and hardcoding
the flag into GHC.
This is part of the effort to centralise toolchain information in
toolchain target files at configure time with the end goal of a runtime
retargetable GHC.
This also means we don't need to call getCompilerInfo ever, which
improves performance considerably (see !10589).
Metric Decrease:
PmSeriesG
T10421
T11303b
T12150
T12227
T12234
T12425
T13035
T13253-spj
T13386
T15703
T16875
T17836b
T17977
T17977b
T18140
T18282
T18304
T18698a
T18698b
T18923
T20049
T21839c
T3064
T5030
T5321FD
T5321Fun
T5837
T6048
T9020
T9198
T9872d
T9961
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0128db8744da2d015f84eb3881ffcf573547abce">0128db87</a></strong>
<div>
<span> by Victor Cacciari Miraldo </span> <i> at 2023-06-13T09:44:18-04:00 </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;'>Improve docs for Data.Fixed; adds 'realToFrac' as an option for conversion
between different precisions.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/95b69cfb3d601eb3e6c5b1727c4cfef25ab87d68">95b69cfb</a></strong>
<div>
<span> by Ryan Scott </span> <i> at 2023-06-13T09:44:55-04:00 </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 regression test for #23143
!10541, the fix for #23323, also fixes #23143. Let's add a regression test to
ensure that it stays fixed.
Fixes #23143.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ed2dbdcab3272ac8d81075ef60920096d2481fb3">ed2dbdca</a></strong>
<div>
<span> by Emily Martins </span> <i> at 2023-06-13T09:45:37-04:00 </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;'>delete GHCi.UI.Tags module and remove remaining references
Co-authored-by: Tilde Rose <t1lde@protonmail.com>
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c90d96e403eb548c705dc7ae57f3c52bddbf3243">c90d96e4</a></strong>
<div>
<span> by Victor Cacciari Miraldo </span> <i> at 2023-06-13T09:46:26-04:00 </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 regression test for 17328
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/de58080c9d488c17519f64b633b171ec46ce65f0">de58080c</a></strong>
<div>
<span> by Victor Cacciari Miraldo </span> <i> at 2023-06-13T09:46:26-04:00 </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;'>Skip checking whether constructors are in scope when deriving
newtype instances.
Fixes #17328
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5e3c2b055d47a4748a84b9df8c9fb59acaeee49c">5e3c2b05</a></strong>
<div>
<span> by Philip Hazelden </span> <i> at 2023-06-13T09:47:07-04:00 </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;'>Don't suggest `DeriveAnyClass` when instance can't be derived.
Fixes #19692.
Prototypical cases:
class C1 a where
x1 :: a -> Int
data G1 = G1 deriving C1
class C2 a where
x2 :: a -> Int
x2 _ = 0
data G2 = G2 deriving C2
Both of these used to give this suggestion, but for C1 the suggestion
would have failed (generated code with undefined methods, which compiles
but warns). Now C2 still gives the suggestion but C1 doesn't.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/80a0b0992bdf9d8c056341795c36aff9499515bf">80a0b099</a></strong>
<div>
<span> by David Binder </span> <i> at 2023-06-13T09:47:49-04:00 </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 testcase for error GHC-00711 to testsuite
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e4b33a1ded2a3934f4b1bf61c348f06241eb49c5">e4b33a1d</a></strong>
<div>
<span> by Oleg Grenrus </span> <i> at 2023-06-14T07:01:21-04:00 </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 -Wmissing-poly-kind-signatures
Implements #22826
This is a restricted version of -Wmissing-kind-signatures shown only for polykinded types.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f8395b94ad23bbf50248e3acdcfdd393005dba1e">f8395b94</a></strong>
<div>
<span> by doyougnu </span> <i> at 2023-06-14T07:02:01-04:00 </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;'>ci: special case in req_host_target_ghc for JS
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b852a5b662aaad6d651734ffd16852beedf7e99a">b852a5b6</a></strong>
<div>
<span> by Gergo ERDI </span> <i> at 2023-06-14T07:02:42-04:00 </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;'>When forcing a `ModIface`, force the `MINIMAL` pragmas in class definitions
Fixes #23486
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c29b45eefc27cacb0ea014d856500396e178da25">c29b45ee</a></strong>
<div>
<span> by Krzysztof Gogolewski </span> <i> at 2023-06-14T07:03:19-04:00 </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 a testcase for #20076
Remove 'recursive' in the error message, since the error
can arise without recursion.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b80ef202d24a3d529d4409d7a6815a9644ea32a9">b80ef202</a></strong>
<div>
<span> by Krzysztof Gogolewski </span> <i> at 2023-06-14T07:03:56-04:00 </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;'>Use tcInferFRR to prevent bad generalisation
Fixes #23176
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bd8ef37d3a494579f3b29a14af74ab91de07c6a2">bd8ef37d</a></strong>
<div>
<span> by Matthew Pickering </span> <i> at 2023-06-14T07:04:31-04:00 </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;'>ci: Add dependenices on necessary aarch64 jobs for head.hackage ci
These need to be added since we started testing aarch64 on head.hackage
CI. The jobs will sometimes fail because they will start before the
relevant aarch64 job has finished.
Fixes #23511
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a0c27cee239462bb9346c8fdbe7f6fd1e6f265a5">a0c27cee</a></strong>
<div>
<span> by Vladislav Zavialov </span> <i> at 2023-06-14T07:05:08-04:00 </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 standalone kind signatures for Code and TExp
CodeQ and TExpQ already had standalone kind signatures
even before this change:
type TExpQ :: TYPE r -> Kind.Type
type CodeQ :: TYPE r -> Kind.Type
Now Code and TExp have signatures too:
type TExp :: TYPE r -> Kind.Type
type Code :: (Kind.Type -> Kind.Type) -> TYPE r -> Kind.Type
This is a stylistic change.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e70c12457f9c0096f4e5dd18605a930d4d1b0e45">e70c1245</a></strong>
<div>
<span> by Tom Ellis </span> <i> at 2023-06-14T07:05:48-04:00 </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;'>Warn that GHC.TypeLits.Internal should not be used
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/100650e35d6d17965e293160785360933c9e0a25">100650e3</a></strong>
<div>
<span> by Tom Ellis </span> <i> at 2023-06-14T07:05:48-04:00 </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;'>Warn that GHC.TypeNats.Internal should not be used
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/078250eff2e542d7820c5e00dcf1ce2b43a2e968">078250ef</a></strong>
<div>
<span> by Jacco Krijnen </span> <i> at 2023-06-14T17:17:53-04:00 </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 more flags for dumping core passes (#23491)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1b7604af7dd8c787043ab46d4ad4f84bf131cd3c">1b7604af</a></strong>
<div>
<span> by Jacco Krijnen </span> <i> at 2023-06-14T17:17:53-04:00 </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 tests for dumping flags (#23491)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/420000000e2d3d1a07ff3aa2a24cc88bd3d48e75">42000000</a></strong>
<div>
<span> by Sebastian Graf </span> <i> at 2023-06-14T17:18:29-04:00 </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;'>Provide a demand signature for atomicModifyMutVar.# (#23047)
Fixes #23047
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8f27023b1f465e44ea02e1b6ac7b7b04c632cc5e">8f27023b</a></strong>
<div>
<span> by Ben Gamari </span> <i> at 2023-06-15T03:10:24-04:00 </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;'>compiler: Cross-reference Note [StgToJS design]
In particular, the numeric representations are quite useful context in a
few places.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a71b60e923806fa696d734aa82d465682188b6d4">a71b60e9</a></strong>
<div>
<span> by Andrei Borzenkov </span> <i> at 2023-06-15T03:11:00-04:00 </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;'>Implement the -Wimplicit-rhs-quantification warning (#23510)
GHC Proposal #425 "Invisible binders in type declarations" forbids
implicit quantification of type variables that occur free on the
right-hand side of a type synonym but are not mentioned on the left-hand side.
The users are expected to rewrite this using invisible binders:
type T1 :: forall a . Maybe a
type T1 = 'Nothing :: Maybe a -- old
type T1 @a = 'Nothing :: Maybe a -- new
Since the @k-binders are a new feature, we need to wait for three releases
before we require the use of the new syntax. In the meantime, we ought to
provide users with a new warning, -Wimplicit-rhs-quantification, that would
detect when such implicit quantification takes place, and include it in -Wcompat.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0078dd007535c8c81384a771e79f59efb4d5b382">0078dd00</a></strong>
<div>
<span> by Sven Tennie </span> <i> at 2023-06-15T03:11:36-04:00 </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;'>Minor refactorings to mkSpillInstr and mkLoadInstr
Better error messages. And, use the existing `off` constant to reduce
duplication.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1792b57a717e0b3b338b93d641d9f55f12cf7173">1792b57a</a></strong>
<div>
<span> by doyougnu </span> <i> at 2023-06-15T03:12:17-04:00 </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;'>JS: merge util modules
Merge Core and StgUtil modules for StgToJS pass.
Closes: #23473
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/469ff08b4c56491f42236a5d59fe3e85ee901657">469ff08b</a></strong>
<div>
<span> by Vladislav Zavialov </span> <i> at 2023-06-15T03:12:57-04:00 </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;'>Check visibility of nested foralls in can_eq_nc (#18863)
Prior to this change, `can_eq_nc` checked the visibility of the
outermost layer of foralls:
forall a. forall b. forall c. phi1
forall x. forall y. forall z. phi2
^^
up to here
Then it delegated the rest of the work to `can_eq_nc_forall`, which
split off all foralls:
forall a. forall b. forall c. phi1
forall x. forall y. forall z. phi2
^^
up to here
This meant that some visibility flags were completely ignored.
We fix this oversight by moving the check to `can_eq_nc_forall`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/59c9065be3e2cca58601b0774d7482d68bb25373">59c9065b</a></strong>
<div>
<span> by Luite Stegeman </span> <i> at 2023-06-15T03:13:37-04:00 </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;'>JS: use regular mask for blocking IO
Blocking IO used uninterruptibleMask which should make any thread
blocked on IO unreachable by async exceptions (such as those from
timeout). This changes it to a regular mask.
It's important to note that the nodejs runtime does not actually
interrupt the blocking IO when the Haskell thread receives an
async exception, and that file positions may be updated and buffers
may be written after the Haskell thread has already resumed.
Any file descriptor affected by an async exception interruption
should therefore be used with caution.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/907c06c3e6c9e10f9e561db66aa45cdd0bd30cf1">907c06c3</a></strong>
<div>
<span> by Luite Stegeman </span> <i> at 2023-06-15T03:13:37-04:00 </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;'>JS: nodejs: do not set 'readable' handler on stdin at startup
The Haskell runtime used to install a 'readable' handler on stdin
at startup in nodejs. This would cause the nodejs system to start
buffering the stream, causing data loss if the stdin file
descriptor is passed to another process.
This change delays installation of the 'readable' handler until
the first read of stdin by Haskell code.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a54b40a99018a32a3251b2ff5e36c0816b39999f">a54b40a9</a></strong>
<div>
<span> by Luite Stegeman </span> <i> at 2023-06-15T03:13:37-04:00 </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;'>JS: reserve one more virtual (negative) file descriptor
This is needed for upcoming support of the process package
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/78cd11329ce2ed00cbba8a459fe688ccc8f83d13">78cd1132</a></strong>
<div>
<span> by Andrei Borzenkov </span> <i> at 2023-06-15T11:16:11+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;'>Report scoped kind variables at the type-checking phase (#16635)
This patch modifies the renamer to respect ScopedTypeVariables in kind
signatures. This means that kind variables bound by the outermost
`forall` now scope over the type:
type F = '[Right @a @() () :: forall a. Either a ()]
-- ^^^^^^^^^^^^^^^ ^^^
-- in scope here bound here
However, any use of such variables is a type error, because we don't
have type-level lambdas to bind them in Core. This is described in the
new Note [Type variable scoping errors during type check] in GHC.Tc.Types.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4a41ba752fddd0c660a66cfd79901c711ee32b9c">4a41ba75</a></strong>
<div>
<span> by Sylvain Henry </span> <i> at 2023-06-15T18:09:15-04:00 </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;'>JS: testsuite: use correct ticket number
Replace #22356 with #22349 for these tests because #22356 has been fixed
but now these tests fail because of #22349.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/15f150c8fcbe0c851045e052d700e9718eae3dcf">15f150c8</a></strong>
<div>
<span> by Sylvain Henry </span> <i> at 2023-06-15T18:09:16-04:00 </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;'>JS: testsuite: update ticket numbers
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/08d8e9efa245e87e9c67da73e0987846865671d6">08d8e9ef</a></strong>
<div>
<span> by Sylvain Henry </span> <i> at 2023-06-15T18:09:16-04:00 </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;'>JS: more triage
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e8752e125f8b43adffac3b99e02455218828abed">e8752e12</a></strong>
<div>
<span> by Krzysztof Gogolewski </span> <i> at 2023-06-15T18:09:52-04:00 </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 test T18522-deb-ppr
Fixes #23509
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/62c5641679b38ecf1978da890e084ef435255903">62c56416</a></strong>
<div>
<span> by Ben Price </span> <i> at 2023-06-16T05:52:39-04:00 </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;'>Lint: more details on "Occurrence is GlobalId, but binding is LocalId"
This is helpful when debugging a pass which accidentally shadowed a
binder.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d4c102387ee23c805fa07bb394df12dd0206fc94">d4c10238</a></strong>
<div>
<span> by Ryan Hendrickson </span> <i> at 2023-06-16T05:53:22-04:00 </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;'>Clean a stray bit of text in user guide
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/93647b5cdc94532bd436c0076de64412f305011a">93647b5c</a></strong>
<div>
<span> by Vladislav Zavialov </span> <i> at 2023-06-16T05:54:02-04:00 </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;'>testsuite: Add forall visibility test cases
The added tests ensure that the type checker does not confuse
visible and invisible foralls.
VisFlag1: kind-checking type applications and inferred type variable instantiations
VisFlag1_ql: kind-checking Quick Look instantiations
VisFlag2: kind-checking type family instances
VisFlag3: checking kind annotations on type parameters of associated type families
VisFlag4: checking kind annotations on type parameters in type declarations with SAKS
VisFlag5: checking the result kind annotation of data family instances
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a5f0c00ee19186d245bd0a55f1432811701a1bd7">a5f0c00e</a></strong>
<div>
<span> by Sylvain Henry </span> <i> at 2023-06-16T12:25:40-04:00 </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;'>JS: factorize SaneDouble into its own module
Follow-up of b159e0e9 whose ticket is #22736
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0baf9e7cfa5d0e76998c2a528693736a6317cf4c">0baf9e7c</a></strong>
<div>
<span> by Krzysztof Gogolewski </span> <i> at 2023-06-16T12:26:17-04:00 </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 tests for #21973
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/640ea90e73714dc3c9bc7d877ac34d208c039d6a">640ea90e</a></strong>
<div>
<span> by Diego Diverio </span> <i> at 2023-06-16T23:07:55-04:00 </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;'>Update documentation for `<**>`
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2469a8138d200b17ec09799b9c2b9b98851e6519">2469a813</a></strong>
<div>
<span> by Diego Diverio </span> <i> at 2023-06-16T23:07:55-04:00 </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;'>Update text
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1f515bbb3c2c609a6248605be6db51b6604a4ab6">1f515bbb</a></strong>
<div>
<span> by Diego Diverio </span> <i> at 2023-06-16T23:07:55-04:00 </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;'>Update examples
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7af99a0d2aac4a6caca73d7470c94881651457a2">7af99a0d</a></strong>
<div>
<span> by Diego Diverio </span> <i> at 2023-06-16T23:07:55-04:00 </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;'>Update documentation to actually display code correctly
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/800aad7ea83e6b56798a953511acbd336af3f253">800aad7e</a></strong>
<div>
<span> by Andrei Borzenkov </span> <i> at 2023-06-16T23:08:32-04:00 </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;'>Type/data instances: require that variables on the RHS are mentioned on the LHS (#23512)
GHC Proposal #425 "Invisible binders in type declarations" restricts the
scope of type and data family instances as follows:
In type family and data family instances, require that every variable
mentioned on the RHS must also occur on the LHS.
For example, here are three equivalent type instance definitions accepted before this patch:
type family F1 a :: k
type instance F1 Int = Any :: j -> j
type family F2 a :: k
type instance F2 @(j -> j) Int = Any :: j -> j
type family F3 a :: k
type instance forall j. F3 Int = Any :: j -> j
- In F1, j is implicitly quantified and it occurs only on the RHS;
- In F2, j is implicitly quantified and it occurs both on the LHS and the RHS;
- In F3, j is explicitly quantified.
Now F1 is rejected with an out-of-scope error, while F2 and F3 continue to be accepted.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9132d529ad26f5ac0f3e5180f455d7bbeccc87a1">9132d529</a></strong>
<div>
<span> by Sylvain Henry </span> <i> at 2023-06-18T02:50:34-04:00 </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;'>JS: testsuite: use correct ticket numbers
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c3a1274c451795bc126234aedf02fbc21f8c4a79">c3a1274c</a></strong>
<div>
<span> by Sylvain Henry </span> <i> at 2023-06-18T02:50:34-04:00 </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;'>JS: don't dump eventlog to stderr by default
Fix T16707
Bump stm submodule
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/89bb8ad8b5fa56b83fe80dd6d7147ad81ae4e74d">89bb8ad8</a></strong>
<div>
<span> by Ryan Hendrickson </span> <i> at 2023-06-18T02:51:14-04:00 </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 TH name lookup for symbolic tycons (#23525)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cb9e1ce4d3b9de5b75a92ae721a207a6bc250a78">cb9e1ce4</a></strong>
<div>
<span> by Finley McIlwaine </span> <i> at 2023-06-18T21:16:45-06:00 </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;'>IPE data compression
IPE data resulting from the `-finfo-table-map` flag may now be
compressed by configuring the GHC build with the
`--enable-ipe-data-compression` flag. This results in about a 20%
reduction in the size of IPE-enabled build results.
The compression library, zstd, may optionally be statically linked by
configuring with the `--enabled-static-libzstd` flag (on non-darwin
platforms)
libzstd version 1.4.0 or greater is required.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0cbc3ae04ff4b4f5be38bddda8b1da5fb99aafd4">0cbc3ae0</a></strong>
<div>
<span> by Gergő Érdi </span> <i> at 2023-06-19T09:11:38-04:00 </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 `IfaceWarnings` to represent the `ModIface`-storable parts
of a `Warnings GhcRn`.
Fixes #23516
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/01960ffdaa899a221f7060ec180208d552c2524b">01960ffd</a></strong>
<div>
<span> by Rodrigo Mesquita </span> <i> at 2023-06-19T22:51:50+01:00 </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;'>Remove redundant computation in eqDeBruijnExpr
In eqDeBruijnExpr, we checked if the lists had the same length.
However, all2 already returns False if the length doesn't match.
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