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<h3 style="margin-top: 20px; margin-bottom: 10px;">

Krzysztof Gogolewski pushed to branch wip/unsafe-coerce-doc 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/7080a93fd09b71aa6c94e6336eb054e9f5592932">7080a93f</a></strong>

<div>

<span> by Simon Peyton Jones </span> <i> at 2023-02-20T12:06:32+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;'>Improve GHC.Tc.Gen.App.tcInstFun

It wasn't behaving right when inst_final=False, and the

function had no type variables

   f :: Foo => Int

Rather a corner case, but we might as well do it right.

Fixes #22908

Unexpectedly, three test cases (all using :type in GHCi) got

slightly better output as a result:

  T17403, T14796, T12447

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2592ab6924ee34ed0f0d82a7cb0aed393d93bb14">2592ab69</a></strong>

<div>

<span> by Cheng Shao </span> <i> at 2023-02-20T10:35:30-05:00 </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: fix cost centre profiling breakage in wasm NCG due to incorrect register mapping

The wasm NCG used to map CCCS to a wasm global, based on the

observation that CCCS is a transient register that's already handled

by thread state load/store logic, so it doesn't need to be backed by

the rCCCS field in the register table.

Unfortunately, this is wrong, since even when Cmm execution hasn't

yielded back to the scheduler, the Cmm code may call enterFunCCS,

which does use rCCCS.

This breaks cost centre profiling in a subtle way, resulting in

inaccurate stack traces in some test cases. The fix is simple though:

just remove the CCCS mapping.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/26243de1e3716886161d79918af9359f7639314b">26243de1</a></strong>

<div>

<span> by Alexis King </span> <i> at 2023-02-20T15:27:17-05:00 </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;'>Handle top-level Addr# literals in the bytecode compiler

Fixes #22376.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0196cc2ba8f848187be47b5fc53bab89e5026bf6">0196cc2b</a></strong>

<div>

<span> by romes </span> <i> at 2023-02-20T15:27:52-05:00 </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: Explicitly flush stdout on plugin

Because of #20791, the plugins tests often fail.  This is a temporary

fix to stop the tests from failing due to unflushed outputs on windows

and the explicit flush should be removed when #20791 is fixed.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4327d63594f73939a2b8ab015c1cb44eafd4b460">4327d635</a></strong>

<div>

<span> by Ryan Scott </span> <i> at 2023-02-20T20:44:34-05:00 </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 generate datacon wrappers for `type data` declarations

Data constructor wrappers only make sense for _value_-level data constructors,

but data constructors for `type data` declarations only exist at the _type_

level. This patch does the following:

* The criteria in `GHC.Types.Id.Make.mkDataConRep` for whether a data

  constructor receives a wrapper now consider whether or not its parent data

  type was declared with `type data`, omitting a wrapper if this is the case.

* Now that `type data` data constructors no longer receive wrappers, there is a

  spot of code in `refineDefaultAlt` that panics when it encounters a value

  headed by a `type data` type constructor. I've fixed this with a special case

  in `refineDefaultAlt` and expanded `Note [Refine DEFAULT case alternatives]`

  to explain why we do this.

Fixes #22948.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/96dc58b9225d91a7912957c6be5d9c7a95e51718">96dc58b9</a></strong>

<div>

<span> by Ryan Scott </span> <i> at 2023-02-20T20:44:35-05:00 </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;'>Treat type data declarations as empty when checking pattern-matching coverage

The data constructors for a `type data` declaration don't exist at the value

level, so we don't want GHC to warn users to match on them.

Fixes #22964.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ff8e99f69b203559b784014ab26c59b5553d128a">ff8e99f6</a></strong>

<div>

<span> by Ryan Scott </span> <i> at 2023-02-20T20:44:35-05:00 </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;'>Disallow `tagToEnum#` on `type data` types

We don't want to allow users to conjure up values of a `type data` type using

`tagToEnum#`, as these simply don't exist at the value level.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8e765affde37197a6ebc174653171195fcc53003">8e765aff</a></strong>

<div>

<span> by Bodigrim </span> <i> at 2023-02-21T12:03:24-05:00 </i>

</div>

<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "Menlo"),"DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Bump submodule text to 2.0.2

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/172ff88fcac864a029d1cf77fbbe04c7a969d70d">172ff88f</a></strong>

<div>

<span> by Georgi Lyubenov </span> <i> at 2023-02-21T18:35:56-05:00 </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;'>GHC proposal 496 - Nullary record wildcards

This patch implements GHC proposal 496, which allows record wildcards

to be used for nullary constructors, e.g.

  data A = MkA1 | MkA2 { fld1 :: Int }

  f :: A -> Int

  f (MkA1 {..}) = 0

  f (MkA2 {..}) = fld1

To achieve this, we add arity information to the record field

environment, so that we can accept a constructor which has no fields

while continuing to reject non-record constructors with more than 1

field. See Note [Nullary constructors and empty record wildcards],

as well as the more general overview in Note [Local constructor info in the renamer],

both in the newly introduced GHC.Types.ConInfo module.

Fixes #22161

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f70a0239490ebea25e50c61c01f945d8df41e92f">f70a0239</a></strong>

<div>

<span> by sheaf </span> <i> at 2023-02-21T18:36:35-05:00 </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;'>ghc-prim: levity-polymorphic array equality ops

This patch changes the pointer-equality comparison operations in

GHC.Prim.PtrEq to work with arrays of unlifted values, e.g.

  sameArray# :: forall {l} (a :: TYPE (BoxedRep l)). Array# a -> Array# a -> Int#

Fixes #22976

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9296660b131d42f1b1f9c421040c5746d5c56989">9296660b</a></strong>

<div>

<span> by Andreas Klebinger </span> <i> at 2023-02-21T23:58:05-05:00 </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: Correct @since annotation for FP<->Integral bit cast operations.

Fixes #22708

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f11d9c274d728696bc173c62a2ead62b8288836f">f11d9c27</a></strong>

<div>

<span> by romes </span> <i> at 2023-02-21T23:58:42-05:00 </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: Update documentation links

Closes #23008

Additionally batches some fixes to pointers to the Note [Wired-in units],

and a typo in said note.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fb60339fe2c90a5d6fd32cdcde91506324a9bb73">fb60339f</a></strong>

<div>

<span> by Bryan Richter </span> <i> at 2023-02-23T14:45:17+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;'>Propagate failure if unable to push notes

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8e170f86da9f804b18023a99c7c0add020a42e32">8e170f86</a></strong>

<div>

<span> by Alexis King </span> <i> at 2023-02-23T16:59:22-05:00 </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: Fix `prompt#` when profiling is enabled

This commit also adds a new -Dk RTS option to the debug RTS to assist

debugging continuation captures. Currently, the printed information is

quite minimal, but more can be added in the future if it proves to be

useful when debugging future issues.

fixes #23001

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e9e7a00da2c5963a53dbcedaec793400fde07563">e9e7a00d</a></strong>

<div>

<span> by sheaf </span> <i> at 2023-02-23T17:00:01-05:00 </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;'>Explicit migration timeline for loopy SC solving

This patch updates the warning message introduced in commit

9fb4ca89bff9873e5f6a6849fa22a349c94deaae to specify an explicit

migration timeline: GHC will no longer support this constraint solving

mechanism starting from GHC 9.10.

Fixes #22912

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4eb9c234886993e569ec43504f3c547c464ece4e">4eb9c234</a></strong>

<div>

<span> by Sylvain Henry </span> <i> at 2023-02-24T17:27:45-05:00 </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: make some arithmetic primops faster (#22835)

Don't use BigInt for wordAdd2, mulWord32, and timesInt32.

Co-authored-by: Matthew Craven <5086-clyring@users.noreply.gitlab.haskell.org>

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/92e764837ffff88bdc91fffb60a83e0e778d8a0b">92e76483</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-02-24T17:28:20-05:00 </i>

</div>

<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "Menlo"),"DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Bump terminfo submodule to 0.4.1.6

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f229db14c8c769e880559cee7a7291b628a463b9">f229db14</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-02-24T17:28:20-05:00 </i>

</div>

<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "Menlo"),"DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Bump unix submodule to 2.8.1.0

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/47bd48c1a8e3dccda33d5188ca8fce854b8328ac">47bd48c1</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-02-24T17:28:20-05:00 </i>

</div>

<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "Menlo"),"DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Bump deepseq submodule to 1.4.8.1

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d20125943949c50b6cb230815ba54e63981e97d8">d2012594</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-02-24T17:28:20-05:00 </i>

</div>

<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "Menlo"),"DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Bump directory submodule to 1.3.8.1

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/df6f70d1ef484f849128db5c288844f44c676bf5">df6f70d1</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-02-24T17:28:20-05:00 </i>

</div>

<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "Menlo"),"DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Bump process submodule to v1.6.17.0

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4c869e48af9b09421c9c33cde4a27c40506ac6f1">4c869e48</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-02-24T17:28:20-05:00 </i>

</div>

<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "Menlo"),"DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Bump hsc2hs submodule to 0.68.8

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/81d966427ed87292a744820a682868d579c57b5a">81d96642</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-02-24T17:28:20-05:00 </i>

</div>

<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "Menlo"),"DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Bump array submodule to 0.5.4.0

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6361f7712a1baafcaa6eecc2a01c58bdf010272b">6361f771</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-02-24T17:28:20-05:00 </i>

</div>

<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "Menlo"),"DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Bump Cabal submodule to 3.9 pre-release

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4085fb6ce2f3d0cb5762893a08e6b98be701f66e">4085fb6c</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-02-24T17:28:20-05:00 </i>

</div>

<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "Menlo"),"DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Bump filepath submodule to 1.4.100.1

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2bfad50fe36756b2909146d10fc3735b89bbf59a">2bfad50f</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-02-24T17:28:20-05:00 </i>

</div>

<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "Menlo"),"DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Bump haskeline submodule to 0.8.2.1

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fdc89a8d77622038944231ac3244ec88bdfc2c0f">fdc89a8d</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-02-24T21:29:32-05:00 </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;'>gitlab-ci: Run nix-build with -v0

This significantly cuts down on the amount of

noise in the job log.

Addresses #22861.</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/69fb0b13abe14af4537f3828ef08f9841e34e630">69fb0b13</a></strong>

<div>

<span> by Aaron Allen </span> <i> at 2023-02-24T21:30:10-05:00 </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 ParallelListComp out of scope suggestion

This patch makes it so vars from one block of a parallel list

comprehension are not in scope in a subsequent block during type

checking. This was causing GHC to emit a faulty suggestion when an out

of scope variable shared the occ name of a var from a different block.

Fixes #22940

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ece092d07f343dcfb4563e4f42d53a2a1e449f1a">ece092d0</a></strong>

<div>

<span> by Simon Peyton Jones </span> <i> at 2023-02-24T21:30:45-05:00 </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 shadowing bug in prepareAlts

As #23012 showed, GHC.Core.Opt.Simplify.Utils.prepareAlts was

using an OutType to construct an InAlt.  When shadowing is in play,

this is outright wrong.

See Note [Shadowing in prepareAlts].

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7825fef9f2096d7769baf433c6858d132af60a3a">7825fef9</a></strong>

<div>

<span> by Sylvain Henry </span> <i> at 2023-02-24T21:31:25-05:00 </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: Store CI perf results (fix #22923)

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b56025f448646de40446a133f140f62c8a49cabf">b56025f4</a></strong>

<div>

<span> by Gergő Érdi </span> <i> at 2023-02-27T13:34:22+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 specialise incoherent instance applications

Using incoherent instances, there can be situations where two

occurrences of the same overloaded function at the same type use two

different instances (see #22448). For incoherently resolved instances,

we must mark them with `nospec` to avoid the specialiser rewriting one

to the other. This marking is done during the desugaring of the

`WpEvApp` wrapper.

Fixes #22448

Metric Increase:

    T15304

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d0c7bbedb741e6bf947bcdc0e097070242ab56e1">d0c7bbed</a></strong>

<div>

<span> by Tom Ellis </span> <i> at 2023-02-27T20:04:07-05:00 </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 SCC grouping example

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f84a8cd428759e0cc413ac49a51cf7545ea2be30">f84a8cd4</a></strong>

<div>

<span> by Bryan Richter </span> <i> at 2023-02-28T05:58:37-05:00 </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;'>Mark setnumcapabilities001 fragile

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/29a04d6e6e999bf907ba01ea0cb2f3af9f76f558">29a04d6e</a></strong>

<div>

<span> by Bryan Richter </span> <i> at 2023-02-28T05:58:37-05:00 </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 nightly-x86_64-linux-deb10-validate+thread_sanitizer to fail

See #22520

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9fa545722f9151781344446dd5501db38cb90dd1">9fa54572</a></strong>

<div>

<span> by Cheng Shao </span> <i> at 2023-02-28T05:59:15-05:00 </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;'>ghc-prim: fix hs_cmpxchg64 function prototype

hs_cmpxchg64 must return a StgWord64, otherwise incorrect runtime

results of 64-bit MO_Cmpxchg will appear in 32-bit unregisterised

builds, which go unnoticed at compile-time due to C implicit casting

in .hc files.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0c200ab78c814cb5d1efaf426f0d3d91ceab9f4d">0c200ab7</a></strong>

<div>

<span> by Simon Peyton Jones </span> <i> at 2023-02-28T11:10:31-05:00 </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;'>Account for local rules in specImports

As #23024 showed, in GHC.Core.Opt.Specialise.specImports, we were

generating specialisations (a locally-define function) for imported

functions; and then generating specialisations for those

locally-defined functions.  The RULE for the latter should be

attached to the local Id, not put in the rules-for-imported-ids

set.

Fix is easy; similar to what happens in GHC.HsToCore.addExportFlagsAndRules

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8b77f9bfceb456115f63349ad0ff66a5cea7ab59">8b77f9bf</a></strong>

<div>

<span> by Sylvain Henry </span> <i> at 2023-02-28T11:11:21-05:00 </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 for overlap with copyMutableByteArray# (#23033)

The code wasn't taking into account some kind of overlap.

cgrun070 has been extended to test the missing case.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/239202a2b14714740e016d7bbcd4f351356fcb00">239202a2</a></strong>

<div>

<span> by Sylvain Henry </span> <i> at 2023-02-28T11:12:03-05:00 </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: replace some js_skip with req_cmm

req_cmm is more informative than js_skip

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7192ef91c855e1fae6997f75cfde76aafd0b4bcf">7192ef91</a></strong>

<div>

<span> by Simon Peyton Jones </span> <i> at 2023-02-28T18:54:59-05:00 </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;'>Take more care with unlifted bindings in the specialiser

As #22998 showed, we were floating an unlifted binding to top

level, which breaks a Core invariant.

The fix is easy, albeit a little bit conservative.  See

Note [Care with unlifted bindings] in GHC.Core.Opt.Specialise

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bb500e2a2d039dc75c8bb80d47ea2349b97fbf1b">bb500e2a</a></strong>

<div>

<span> by Simon Peyton Jones </span> <i> at 2023-02-28T18:55:35-05:00 </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;'>Account for TYPE vs CONSTRAINT in mkSelCo

As #23018 showed, in mkRuntimeRepCo we need to account for coercions

between TYPE and COERCION.

See Note [mkRuntimeRepCo] in GHC.Core.Coercion.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/79ffa170a6b0b152da0e02744869311773733286">79ffa170</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-01T04:17:20-05:00 </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: Add dependency from lib/settings to mk/config.mk

In 81975ef375de07a0ea5a69596b2077d7f5959182 we attempted to fix #20253

by adding logic to the bindist Makefile to regenerate the `settings`

file from information gleaned by the bindist `configure` script.

However, this fix had no effect as `lib/settings` is shipped in the

binary distribution (to allow in-place use of the binary distribution).

As `lib/settings` already existed and its rule declared no dependencies,

`make` would fail to use the added rule to regenerate it.

Fix this by explicitly declaring a dependency from `lib/settings` on

`mk/config.mk`.

Fixes #22982.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a2a1a1c08bb520b74b00194a83add82b287b38d5">a2a1a1c0</a></strong>

<div>

<span> by Sebastian Graf </span> <i> at 2023-03-01T04:17:56-05:00 </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 the main payload of "Make `drop` and `dropWhile` fuse (#18964)"

This reverts the bits affecting fusion of `drop` and `dropWhile` of commit

0f7588b5df1fc7a58d8202761bf1501447e48914 and keeps just the small refactoring

unifying `flipSeqTake` and `flipSeqScanl'` into `flipSeq`.

It also adds a new test for #23021 (which was the reason for reverting) as

well as adds a clarifying comment to T18964.

Fixes #23021, unfixes #18964.

Metric Increase:

    T18964

Metric Decrease:

    T18964

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cf118e2fac04b79cc7fa63cff0552190c3885bb9">cf118e2f</a></strong>

<div>

<span> by Simon Peyton Jones </span> <i> at 2023-03-01T04:18:33-05:00 </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;'>Refine the test for naughty record selectors

The test for naughtiness in record selectors is surprisingly subtle.

See the revised Note [Naughty record selectors] in GHC.Tc.TyCl.Utils.

Fixes #23038.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/86f240ca956f633c20a61872ec44de9e21266624">86f240ca</a></strong>

<div>

<span> by romes </span> <i> at 2023-03-01T04:19:10-05:00 </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: Consider strictness annotation in rep_bind

Fixes #23036

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1ed573a53ee454db240b9fb1a17e28c97b6eb53a">1ed573a5</a></strong>

<div>

<span> by Richard Eisenberg </span> <i> at 2023-03-02T22:42:06-05:00 </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 suppress *all* Wanteds

Code in GHC.Tc.Errors.reportWanteds suppresses a Wanted if its

rewriters have unfilled coercion holes; see

Note [Wanteds rewrite Wanteds] in GHC.Tc.Types.Constraint.

But if we thereby suppress *all* errors that's really confusing,

and as #22707 shows, GHC goes on without even realising that the

program is broken. Disaster.

This MR arranges to un-suppress them all if they all get suppressed.

Close #22707

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8919f34102cae1ff3bae95b7f53e5d93dbad7ecf">8919f341</a></strong>

<div>

<span> by Luite Stegeman </span> <i> at 2023-03-02T22:42:45-05:00 </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 for platform support for JavaScript foreign imports

GHC was accepting `foreign import javascript` declarations

on non-JavaScript platforms. This adds a check so that these

are only supported on an platform that supports the JavaScript

calling convention.

Fixes #22774

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/db83f8bbf2e0ac68df675dea6b716fb7c19c649a">db83f8bb</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-02T22:43:22-05:00 </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: Statically assert alignment of Capability

In #22965 we noticed that changes in the size of `Capability` can result

in unsound behavior due to the `align` pragma claiming an alignment

which we don't in practice observe. Avoid this by statically asserting

that the size is a multiple of the alignment.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5f7a4a6d8311d2faa9c90b2b0c4431dd4427839d">5f7a4a6d</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-02T22:43:22-05:00 </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: Introduce stgMallocAlignedBytes

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8a6f745d963fc9b79c7b1e4b477f4fc724233655">8a6f745d</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-02T22:43:22-05:00 </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: Correctly align Capability allocations

Previously we failed to tell the C allocator that `Capability`s needed

to be aligned, resulting in #22965.

Fixes #22965.

Fixes #22975.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5464c73f192f76e75160e8992fe9720d943ae611">5464c73f</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-02T22:43:22-05:00 </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: Drop no-alignment special case for Windows

For reasons that aren't clear, we were previously not giving Capability

the same favorable alignment on Windows that we provided on other

platforms. Fix this.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a86aae8b562c12bb3cee8dcae5156b647f1a74ad">a86aae8b</a></strong>

<div>

<span> by Matthew Pickering </span> <i> at 2023-03-02T22:43:59-05:00 </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;'>constant folding: Correct type of decodeDouble_Int64 rule

The first argument is Int64# unconditionally, so we better produce

something of that type. This fixes a core lint error found in the ad

package.

Fixes #23019

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/68dd64ffa6f164dce4ac010b9f5e1adfefeae7c7">68dd64ff</a></strong>

<div>

<span> by Zubin Duggal </span> <i> at 2023-03-02T22:44:35-05:00 </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;'>ncg/aarch64: Handle MULTILINE_COMMENT identically as COMMENTs

Commit 7566fd9de38c67360c090f828923d41587af519c with the fix for #22798 was

incomplete as it failed to handle MULTILINE_COMMENT pseudo-instructions, and

didn't completly fix the compiler panics when compiling with `-fregs-graph`.

Fixes #23002

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2f97c86151d7eed115ddcbdee1842684aed63176">2f97c861</a></strong>

<div>

<span> by Simon Peyton Jones </span> <i> at 2023-03-02T22:45:11-05:00 </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;'>Get the right in-scope set in etaBodyForJoinPoint

Fixes #23026

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/45af8482e3f7d2d8234265982e14ff9b0d4dfa65">45af8482</a></strong>

<div>

<span> by David Feuer </span> <i> at 2023-03-03T11:40:47-05:00 </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;'>Export getSolo from Data.Tuple

Proposed in

[CLC proposal #113](https://github.com/haskell/core-libraries-committee/issues/113)

and

[approved by the CLC](https://github.com/haskell/core-libraries-committee/issues/113#issuecomment-1452452191)

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0c6948957f62d96a8234683fdf67b34369aad240">0c694895</a></strong>

<div>

<span> by David Feuer </span> <i> at 2023-03-03T11:40:47-05:00 </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;'>Document getSolo

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bd0536afee5d5f91d99af2ab193b6eee5b1da07a">bd0536af</a></strong>

<div>

<span> by Simon Peyton Jones </span> <i> at 2023-03-03T11:41:23-05:00 </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;'>More fixes for `type data` declarations

This MR fixes #23022 and #23023.  Specifically

* Beef up Note [Type data declarations] in GHC.Rename.Module,

  to make invariant (I1) explicit, and to name the several

  wrinkles.

  And add references to these specific wrinkles.

* Add a Lint check for invariant (I1) above.

  See GHC.Core.Lint.checkTypeDataConOcc

* Disable the `caseRules` for dataToTag# for `type data` values.

  See Wrinkle (W2c) in the Note above.  Fixes #23023.

* Refine the assertion in dataConRepArgTys, so that it does not

  complain about the absence of a wrapper for a `type data` constructor

  Fixes #23022.

Acked-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/858f34d5270936ff565880ed3ff244a0ab5f3987">858f34d5</a></strong>

<div>

<span> by Oleg Grenrus </span> <i> at 2023-03-04T01:13:55+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;'>Add decideSymbol, decideChar, decideNat, decTypeRep, decT and hdecT

These all type-level equality decision procedures.

Implementes a CLC proposal https://github.com/haskell/core-libraries-committee/issues/98

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bf43ba9215a726039ace7bac37c0a223a912d998">bf43ba92</a></strong>

<div>

<span> by Simon Peyton Jones </span> <i> at 2023-03-04T01:18:23-05:00 </i>

</div>

<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "Menlo"),"DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Add test for T22793

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c6e1f3cdcd59e6834820be3c8dc89b66b27b5f57">c6e1f3cd</a></strong>

<div>

<span> by Chris Wendt </span> <i> at 2023-03-04T03:35:18-07:00 </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 typo in docs referring to threadLabel

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/232cfc241c14ba6a49d9552a90a94857255e455d">232cfc24</a></strong>

<div>

<span> by Simon Peyton Jones </span> <i> at 2023-03-05T19:57:30-05:00 </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 #22328

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5ed77deb1b49bff7bae9660487ee4a40a496476d">5ed77deb</a></strong>

<div>

<span> by Gabriella Gonzalez </span> <i> at 2023-03-06T17:06:50-05:00 </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 response files for linker if supported

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1e0f6c89d82a7f8531b8370123c2af0fa0630503">1e0f6c89</a></strong>

<div>

<span> by Gabriella Gonzalez </span> <i> at 2023-03-06T17:06:50-05:00 </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;'>Synchronize `configure.ac` and `distrib/configure.ac.in`

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/705609523903ee80d24c5ae261de07a0e32139c9">70560952</a></strong>

<div>

<span> by Gabriella Gonzalez </span> <i> at 2023-03-06T17:06:50-05:00 </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 `hadrian/bindist/config.mk.in`

… as suggested by @bgamari

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b042b125dd7c59703d313b5339b1d66128f590b5">b042b125</a></strong>

<div>

<span> by sheaf </span> <i> at 2023-03-06T17:06:50-05:00 </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;'>Apply 1 suggestion(s) to 1 file(s)</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/674b6b81e391fc9271d0a8f6ab20037b917a4721">674b6b81</a></strong>

<div>

<span> by Gabriella Gonzalez </span> <i> at 2023-03-06T17:06:50-05:00 </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;'>Try to create somewhat portable `ld` command

I cannot figure out a good way to generate an `ld` command

that works on both Linux and macOS.  Normally you'd use something

like `AC_LINK_IFELSE` for this purpose (I think), but that won't

let us test response file support.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/83b0177e97c869f49832e559276492b82667d6b7">83b0177e</a></strong>

<div>

<span> by Gabriella Gonzalez </span> <i> at 2023-03-06T17:06:50-05:00 </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;'>Quote variables

… as suggested by @bgamari

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/845f404da0754f0fa2495739e5ad94b20d3c465d">845f404d</a></strong>

<div>

<span> by Gabriella Gonzalez </span> <i> at 2023-03-06T17:06:50-05:00 </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 configure failure on alpine linux

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c56a3ae681becc7736e5a0e3d0461b8872a02707">c56a3ae6</a></strong>

<div>

<span> by Gabriella Gonzalez </span> <i> at 2023-03-06T17:06:50-05:00 </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;'>Small fixes to configure script

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cad5c5760f6fe06057eb7ad9927b9c1e83417c1e">cad5c576</a></strong>

<div>

<span> by Andrei Borzenkov </span> <i> at 2023-03-06T17:07:33-05:00 </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;'>Convert diagnostics in GHC.Rename.Module to proper TcRnMessage (#20115)

I've turned almost all occurrences of TcRnUnknownMessage in GHC.Rename.Module

module into a proper TcRnMessage.

Instead, these TcRnMessage messages were introduced:

  TcRnIllegalInstanceHeadDecl

  TcRnUnexpectedStandaloneDerivingDecl

  TcRnUnusedVariableInRuleDecl

  TcRnUnexpectedStandaloneKindSig

  TcRnIllegalRuleLhs

  TcRnBadAssocRhs

  TcRnDuplicateRoleAnnot

  TcRnDuplicateKindSig

  TcRnIllegalDerivStrategy

  TcRnIllegalMultipleDerivClauses

  TcRnNoDerivStratSpecified

  TcRnStupidThetaInGadt

  TcRnBadImplicitSplice

  TcRnShadowedTyVarNameInFamResult

  TcRnIncorrectTyVarOnLhsOfInjCond

  TcRnUnknownTyVarsOnRhsOfInjCond

Was introduced one helper type:

  RuleLhsErrReason

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c6432eacdac8e8fd135e52b2fb51bcb43b6913c3">c6432eac</a></strong>

<div>

<span> by Apoorv Ingle </span> <i> at 2023-03-06T23:26:12+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;'>Constraint simplification loop now depends on `ExpansionFuel`

instead of a boolean flag for `CDictCan.cc_pend_sc`.

Pending givens get a fuel of 3 while Wanted and quantified constraints get a fuel of 1.

This helps pending given constraints to keep up with pending wanted constraints in case of

`UndecidableSuperClasses` and superclass expansions while simplifying the infered type.

Adds 3 dynamic flags for controlling the fuels for each type of constraints

`-fgivens-expansion-fuel` for givens `-fwanteds-expansion-fuel` for wanteds and `-fqcs-expansion-fuel` for quantified constraints

Fixes #21909

Added Tests T21909, T21909b

Added Note [Expanding Recursive Superclasses and ExpansionFuel]

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a5afc8ab3c5518aebf8823ed418d404853929147">a5afc8ab</a></strong>

<div>

<span> by Bodigrim </span> <i> at 2023-03-06T22:51:01-05:00 </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;'>Documentation: describe laziness of several function from Data.List

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fa559c28d22888a4ba497daca2c1d5afdebb716c">fa559c28</a></strong>

<div>

<span> by Ollie Charles </span> <i> at 2023-03-07T20:56:21+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;'>Add `Data.Functor.unzip`

This function is currently present in `Data.List.NonEmpty`, but `Data.Functor`

is a better home for it. This change was discussed and approved by the CLC

at https://github.com/haskell/core-libraries-committee/issues/88.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2aa0770845631e4355f55694f49b3e4b66ecf751">2aa07708</a></strong>

<div>

<span> by MorrowM </span> <i> at 2023-03-07T21:22:22-05:00 </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 documentation for traceWith and friends

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f3ff7cb1888e2d96e037cfbfa97b72cd536a5766">f3ff7cb1</a></strong>

<div>

<span> by David Binder </span> <i> at 2023-03-08T01:24:17-05:00 </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 utils/hpc subdirectory and its contents

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cf98e28658f29e754e7631f1cb437bf93e922a8c">cf98e286</a></strong>

<div>

<span> by David Binder </span> <i> at 2023-03-08T01:24:17-05:00 </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 git submodule for utils/hpc

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/605fbbb2f08999be977a1d472b0b06371cd267df">605fbbb2</a></strong>

<div>

<span> by David Binder </span> <i> at 2023-03-08T01:24:18-05:00 </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 commit for utils/hpc git submodule

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/606793d424b08971f1eea4f1fae84b89297e1e63">606793d4</a></strong>

<div>

<span> by David Binder </span> <i> at 2023-03-08T01:24:18-05:00 </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 commit for utils/hpc git submodule

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4158722a6cff5d19e228356c525946b6c4b83396">4158722a</a></strong>

<div>

<span> by Sylvain Henry </span> <i> at 2023-03-08T01:24:58-05:00 </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;'>linker: fix linking with aligned sections (#23066)

Take section alignment into account instead of assuming 16 bytes (which

is wrong when the section requires 32 bytes, cf #23066).

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1e0d8fdb55a38ece34fa6cf214e1d2d46f5f5bf2">1e0d8fdb</a></strong>

<div>

<span> by Greg Steuck </span> <i> at 2023-03-08T08:59:05-05:00 </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 hostSupportsRPaths to report False on OpenBSD

OpenBSD does support -rpath but ghc build process relies on some

related features that don't work there. See ghc/ghc#23011

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bed3a292df532935426987e1f0c5eaa4f605407e">bed3a292</a></strong>

<div>

<span> by Alexis King </span> <i> at 2023-03-08T08:59:53-05:00 </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;'>bytecode: Fix bitmaps for BCOs used to tag tuples and prim call args

fixes #23068

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/321d46d9eafe8901c78dc96f275fb9430cc6d37a">321d46d9</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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: Drop redundant prototype

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/abb6070f488120aef113b686e91b439fe6c3d272">abb6070f</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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;'>nonmoving: Fix style

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/be2789014b208db5c471ab187e7dba2ebc59f8c8">be278901</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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;'>nonmoving: Deduplicate assertion

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b90346392f5455bc4a6f6d86700296babc429a98">b9034639</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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: Fix type issues in Sparks.h

Adds explicit casts to satisfy a C++ compiler.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/da7b2b941d235a284d5685829c235a9e671a0336">da7b2b94</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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: Use release ordering when storing thread labels

Since this makes the ByteArray# visible from other cores.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5b7f65767fbc2967e01a13ee580598e976f5d225">5b7f6576</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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/BlockAlloc: Allow disabling of internal assertions

These can be quite expensive and it is sometimes useful to compile a

DEBUG RTS without them.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6283144fb2e98f4c774950567e55575c1747d136">6283144f</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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/Sanity: Mark pinned_object_blocks

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9b52840412c920a1a1eed26df37262bc6c82c171">9b528404</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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/Sanity: Look at nonmoving saved_filled lists

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0edc543834d8172e54020c5272af1cf2d0b3437c">0edc5438</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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;'>Evac: Squash data race in eval_selector_chain

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7eab831a7d17eda3108da4702a447656cd62334c">7eab831a</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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;'>nonmoving: Clarify implementation

This makes the intent of this implementation a bit clearer.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/532262b95b2eaa685a22279a8e54cc2e379e21ef">532262b9</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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;'>nonmoving: Clarify comment

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bd9cd84bbbb51f21c7b2b478e1f5971e2659b9fd">bd9cd84b</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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;'>nonmoving: Add missing no-op in busy-wait loop

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c4e6bfc801a79b73e94d363db1d3e65076e17981">c4e6bfc8</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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;'>nonmoving: Don't push empty arrays to update remembered set

Previously the write barrier of resizeSmallArray# incorrectly handled

resizing of zero-sized arrays, pushing an invalid pointer to the update

remembered set.

Fixes #22931.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/92227b6022b35d87f6366c75e09ed495b7c3603e">92227b60</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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;'>nonmoving: Fix handling of weak pointers

This fixes an interaction between aging and weak pointer handling which

prevented the finalization of some weak pointers. In particular, weak

pointers could have their keys incorrectly marked by the preparatory

collector, preventing their finalization by the subsequent concurrent

collection.

While in the area, we also significantly improve the assertions

regarding weak pointers.

Fixes #22327.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ba7e7972ae14848a9ac41d5c6200d0aa5727ed72">ba7e7972</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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;'>nonmoving: Sanity check nonmoving large objects and compacts

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/71b038a1261754c38cf984f7c578621c3217c3bf">71b038a1</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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;'>nonmoving: Sanity check mutable list

Assert that entries in the nonmoving generation's generational

remembered set (a.k.a. mutable list) live in nonmoving generation.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/99d144d56598965daba30aa73e6c598b3245bb0f">99d144d5</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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;'>nonmoving: Don't show occupancy if we didn't collect live words

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/81d6cc551c7a843002495d3ffd2373ad00a52766">81d6cc55</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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;'>nonmoving: Fix tracking of FILLED_SWEEPING segments

Previously we only updated the state of the segment at the head of each

allocator's filled list.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/58e53bc4d33dad76b3250997f1a8300d0041f387">58e53bc4</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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;'>nonmoving: Assert state of swept segments

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/2db92e015655e7fc22e559020572bf23233ffaae">2db92e01</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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;'>nonmoving: Handle new closures in nonmovingIsNowAlive

We must conservatively assume that new closures are reachable since we

are not guaranteed to mark such blocks.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e4c3249f00a406a406b6f1190ca8be628b643042">e4c3249f</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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;'>nonmoving: Don't clobber update rem sets of old capabilities

Previously `storageAddCapabilities` (called by `setNumCapabilities`) would

clobber the update remembered sets of existing capabilities when

increasing the capability count. Fix this by only initializing the

update remembered sets of the newly-created capabilities.

Fixes #22927.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1b06967176559d6b2b530dd16e127fa4479ae47f">1b069671</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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;'>nonmoving: Add missing write barriers in selector optimisation

This fixes the selector optimisation, adding a few write barriers which

are necessary for soundness. See the inline comments for details.

Fixes #22930.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d4032690a8bf638f6d134cc6592d138eb018f102">d4032690</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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;'>nonmoving: Post-sweep sanity checking

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0baa8752aaefe80ca428fbfa0cbd4e620d67e1a7">0baa8752</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:30-05:00 </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;'>nonmoving: Avoid n_caps race

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5d3232baa78dd6f00fc040f75d8e9a8075bfbc07">5d3232ba</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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;'>nonmoving: Don't push if nonmoving collector isn't enabled

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0a7eb0aa0bf7e7464e68ab9b6f4176771dcc3590">0a7eb0aa</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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;'>nonmoving: Be more paranoid in segment tracking

Previously we left various segment link pointers dangling. None of this

wrong per se, but it did make it harder than necessary to debug.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7c817c0a4ab857e03d09526a481f63e313598c5b">7c817c0a</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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;'>nonmoving: Sync-phase mark budgeting

Here we significantly improve the bound on sync phase pause times by

imposing a limit on the amount of work that we can perform during the

sync. If we find that we have exceeded our marking budget then we allow

the mutators to resume, return to concurrent marking, and try

synchronizing again later.

Fixes #22929.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ce22a3e2f2e8168f80d77807d79214e1cfbccb44">ce22a3e2</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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;'>nonmoving: Allow pinned gen0 objects to be WEAK keys

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/78746906d133765a9a4219eb34ed01e78f31344c">78746906</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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: Reenable assertion

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b500867a9eae6381e5c686aaa71ae069398eacb9">b500867a</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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;'>nonmoving: Move current segment array into Capability

The current segments are conceptually owned by the mutator, not the

collector. Consequently, it was quite tricky to prove that the mutator

would not race with the collect due to this shared state. It turns out

that such races are possible: when resizing the current segment array

we may concurrently try to take a heap census. This will attempt to walk

the current segment array, causing a data race.

Fix this by moving the current segment array into `Capability`, where it

belongs.

Fixes #22926.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/56e669c11208bba136c44ee7154b59e0d4d39c87">56e669c1</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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;'>nonmoving: Fix Note references

Some references to Note [Deadlock detection under the non-moving

collector] were missing an article.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4a7650d75752fcde2fc5bc23913e4116ae2ec582">4a7650d7</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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/Sanity: Fix block count assertion with non-moving collector

The nonmoving collector does not use `oldest_gen->blocks` to track its

block list. However, it nevertheless updates `oldest_gen->n_blocks` to

ensure that its size is accounted for by the storage manager.

Consequently, we must not attempt to assert consistency between the two.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/96a5aaede899f95fb06dcdb9d0439bbea0f93e14">96a5aaed</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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;'>nonmoving: Don't call prepareUnloadCheck

When the nonmoving GC is in use we do not call `checkUnload` (since we

don't unload code) and therefore should not call `prepareUnloadCheck`,

lest we run into assertions.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6c6674cafefbb72f1b9c5b8a005fc62f905c50ea">6c6674ca</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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: Encapsulate block allocator spinlock

This makes it a bit easier to add instrumentation on this spinlock

while debugging.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e84f716798e0d3431aa7ec42b243dc0998cb6444">e84f7167</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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: Skip some tests when sanity checking is enabled

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3ae0f368542b24b2ee2cd102cf65db8db705c83c">3ae0f368</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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;'>nonmoving: Fix unregisterised build

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4eb9d06b00043e52be3cf828ccb92f0bb4c9e438">4eb9d06b</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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;'>nonmoving: Ensure that sanity checker accounts for saved_filled segments

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f0cf384db038ff3b83770dbf11a89ecd20178899">f0cf384d</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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: Add +boot_nonmoving_gc flavour transformer

For using GHC bootstrapping to validate the non-moving GC.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/581e58ac80f98a9f5292ad13a9a984c2f5a1de21">581e58ac</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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;'>gitlab-ci: Add job bootstrapping with nonmoving GC

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/487a8b580581e8f9b40974cf0e0a4e93f95e8665">487a8b58</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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;'>nonmoving: Move allocator into new source file

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8f374139f0b5f0a39861a7f9432070f78f9fbba0">8f374139</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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;'>nonmoving: Split out nonmovingAllocateGC

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/662b61662f7a347c8070d9395169afb3eee6efa4">662b6166</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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: Only run T22795* in the normal way

It doesn't make sense to run these in multiple ways as they merely test

whether `-threaded`/`-single-threaded` flags.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0af21dfa1b50e618df4dd4e4f7be6e0e2c9aac25">0af21dfa</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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: Rename clear_segment(_free_blocks)?

To reflect the fact that these are to do with the nonmoving collector,

now since they are exposed no longer static.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7bcb192b8a2beea171fd49907c92461fa31acac8">7bcb192b</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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: Fix incorrect STATIC_INLINE

This should be INLINE_HEADER lest we get unused declaration warnings.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f1fd3ffbdccf471c43f3c36d6ecb4bd5da33c097">f1fd3ffb</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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: Mark ffi023 as broken due to #23089

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a57f12b3f06afe29cbbc6eb0a887bcbe319f17f6">a57f12b3</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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: Skip T7160 in the nonmoving way

Finalization order is different under the nonmoving collector.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f6f12a36346e19de7eed330537350d0b7420764a">f6f12a36</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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: Capture GC configuration in a struct

The number of distinct arguments passed to GarbageCollect was getting a

bit out of hand.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ba73a807edbb444c49e0cf21ab2ce89226a77f2e">ba73a807</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-08T15:02:31-05:00 </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;'>nonmoving: Non-concurrent collection

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7c813d0688f03c782d3c3a93a8369a48b7e74c8d">7c813d06</a></strong>

<div>

<span> by Alexis King </span> <i> at 2023-03-08T15:03:10-05:00 </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 flavour compiler stage options off-by-one error

!9193 pointed out that ghcDebugAssertions was supposed to be a predicate

on the stage of the built compiler, but in practice it was a predicate

on the stage of the compiler used to build. Unfortunately, while it

fixed that issue for ghcDebugAssertions, it documented every other

similar option as behaving the same way when in fact they all used the

old behavior.

The new behavior of ghcDebugAssertions seems more intuitive, so this

commit changes the interpretation of every other option to match. It

also improves the enableProfiledGhc and debugGhc flavour transformers by

making them more selective about which stages in which they build

additional library/RTS ways.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f97c7f6d96c58579d630bc883929afc3d45d5c2b">f97c7f6d</a></strong>

<div>

<span> by Luite Stegeman </span> <i> at 2023-03-09T09:52:09-05:00 </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 created temporary subdirectories at end of session.

This patch adds temporary subdirectories to the list of

paths do clean up at the end of the GHC session. This

fixes warnings about non-empty temporary directories.

Fixes #22952

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9ea719f2f1929bf2b789e4001f6c542a04185d61">9ea719f2</a></strong>

<div>

<span> by Apoorv Ingle </span> <i> at 2023-03-09T09:52:45-05:00 </i>

</div>

<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "Menlo"),"DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Fixes #19627.

Previously the solver failed with an unhelpful "solver reached too may iterations" error.

With the fix for #21909 in place we no longer have the possibility of generating such an error if we have `-fconstraint-solver-iteration` > `-fgivens-fuel > `-fwanteds-fuel`. This is true by default, and the said fix also gives programmers a knob to control how hard the solver should try before giving up.

This commit adds:

* Reference to ticket #19627 in the Note [Expanding Recursive Superclasses and ExpansionFuel]

* Test `typecheck/should_fail/T19627.hs` for regression purposes

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ec2d93ebf2468e9250676da256936d8940de4723">ec2d93eb</a></strong>

<div>

<span> by Sebastian Graf </span> <i> at 2023-03-10T10:18:54-05:00 </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;'>DmdAnal: Fix a panic on OPAQUE and trivial/PAP RHS (#22997)

We should not panic in `add_demands` (now `set_lam_dmds`), because that code

path is legimitely taken for OPAQUE PAP bindings, as in T22997.

Fixes #22997.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5b4628aeeca9b7ae0665378f0ce1b1d967c6a1c9">5b4628ae</a></strong>

<div>

<span> by Sylvain Henry </span> <i> at 2023-03-10T10:19:34-05:00 </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: remove dead code for old integer-gmp

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bab232795865e9abb82b75c7e72329778e23a345">bab23279</a></strong>

<div>

<span> by Josh Meredith </span> <i> at 2023-03-10T23:24:49-05:00 </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 implementation of MK_JSVAL

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ec263a59b886ea616dabce349df7a377d5356dd5">ec263a59</a></strong>

<div>

<span> by Sebastian Graf </span> <i> at 2023-03-10T23:25:25-05:00 </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;'>Simplify: Move `wantEtaExpansion` before expensive `do_eta_expand` check

There is no need to run arity analysis and what not if we are not in a

Simplifier phase that eta-expands or if we don't want to eta-expand the

expression in the first place.

Purely a refactoring with the goal of improving compiler perf.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/047e9d4f10e4124899887449dc52b9e72a7d3ea6">047e9d4f</a></strong>

<div>

<span> by Josh Meredith </span> <i> at 2023-03-13T03:56:03+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;'>JS: fix implementation of forceBool to use JS backend syntax

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/559a480427a841b5189f2e6a84a38b02a7c2b8a1">559a4804</a></strong>

<div>

<span> by Sebastian Graf </span> <i> at 2023-03-13T07:31:23-04:00 </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;'>Simplifier: `countValArgs` should not count Type args (#23102)

I observed miscompilations while working on !10088 caused by this.

Fixes #23102.

Metric Decrease:

    T10421

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/536d1f90020dfd74c9e4211e128e051317da5bf6">536d1f90</a></strong>

<div>

<span> by Matthew Pickering </span> <i> at 2023-03-13T14:04:49+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;'>Bump Win32 to 2.13.4.0

Updates Win32 submodule

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ee17001e54c3c6adccc5e3b67b629655c14da43a">ee17001e</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-13T21:18:24-04:00 </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;'>ghc-bignum: Drop redundant include-dirs field</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c9c26cd60692feadcec78c51041df1dbf0caaf8f">c9c26cd6</a></strong>

<div>

<span> by Teo Camarasu </span> <i> at 2023-03-16T12:17:50-04:00 </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 BCO creation setting caps when -j > -N

* Remove calls to 'setNumCapabilities' in 'createBCOs'

These calls exist to ensure that 'createBCOs' can benefit from

parallelism. But this is not the right place to call

`setNumCapabilities`. Furthermore the logic differs from that in the

driver causing the capability count to be raised and lowered at each TH

call if -j > -N.

* Remove 'BCOOpts'

No longer needed as it was only used to thread the job count down to `createBCOs`

Resolves #23049

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/5ddbf5edcb64f04b3527efcac727813080380aa6">5ddbf5ed</a></strong>

<div>

<span> by Teo Camarasu </span> <i> at 2023-03-16T12:17:50-04:00 </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 changelog entry for #23049

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6e3ce9a4ce2509ce779102ec6f8e8ddcb676f94b">6e3ce9a4</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-16T12:18:26-04:00 </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;'>configure: Fix FIND_CXX_STD_LIB test on Darwin

Annoyingly, Darwin's <cstddef> includes <version> and APFS is

case-insensitive. Consequently, it will end up #including the

`VERSION` file generated by the `configure` script on the second

and subsequent runs of the `configure` script.

See #23116.</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/19d6d0397c223bbec3c372d2b8c04c2e356c44a8">19d6d039</a></strong>

<div>

<span> by sheaf </span> <i> at 2023-03-16T21:31:22+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;'>ghci: only keep the GlobalRdrEnv in ModInfo

The datatype GHC.UI.Info.ModInfo used to store a ModuleInfo,

which includes a TypeEnv. This can easily cause space leaks as we

have no way of forcing everything in a type environment.

In GHC, we only use the GlobalRdrEnv, which we can force completely.

So we only store that instead of a fully-fledged ModuleInfo.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/73d07c6e1986bd2b3516d4f009cc1e30ba804f06">73d07c6e</a></strong>

<div>

<span> by Torsten Schmits </span> <i> at 2023-03-17T14:36:49-04:00 </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 structured error messages for GHC.Tc.Utils.Backpack

Tracking ticket: #20119

MR: !10127

This converts uses of `mkTcRnUnknownMessage` to newly added constructors

of `TcRnMessage`.

One occurrence, when handing a nested error from the interface loading

machinery, was omitted. It will be handled by a subsequent changeset

that addresses interface errors.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a13affce1a6196ccff6c126112ab26823c85e727">a13affce</a></strong>

<div>

<span> by Andrei Borzenkov </span> <i> at 2023-03-21T11:17:17-04:00 </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;'>Rename () into Unit, (,,...,,) into Tuple<n> (#21294)

This patch implements a part of GHC Proposal #475.

The key change is in GHC.Tuple.Prim:

  - data () = ()

  - data (a,b) = (a,b)

  - data (a,b,c) = (a,b,c)

  ...

  + data Unit = ()

  + data Tuple2 a b = (a,b)

  + data Tuple3 a b c = (a,b,c)

  ...

And the rest of the patch makes sure that Unit and Tuple<n>

are pretty-printed as () and (,,...,,) in various contexts.

Updates the haddock submodule.

Co-authored-by: Vladislav Zavialov <vlad.z.4096@gmail.com>

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/23642bf609a5da928992b4fae9242194f848ff2f">23642bf6</a></strong>

<div>

<span> by Adam Sandberg Ericsson </span> <i> at 2023-03-21T11:17:53-04:00 </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;'>docs: fix some wrongs in the eventlog format documentation

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/90159773f1aeaf52d7ac3ba82d21c0f92c86ea15">90159773</a></strong>

<div>

<span> by Adam Sandberg Ericsson </span> <i> at 2023-03-21T11:17:53-04:00 </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;'>docs: explain the BLOCK_MARKER event

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ab1c25e866ed39d60e378a6f46c0c89a39e599cd">ab1c25e8</a></strong>

<div>

<span> by Adam Sandberg Ericsson </span> <i> at 2023-03-21T11:17:53-04:00 </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;'>docs: add BlockedOnMVarRead thread status in eventlog encodings

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/898afaef53470adbc03b4a8272c209b6f9aed6fa">898afaef</a></strong>

<div>

<span> by Adam Sandberg Ericsson </span> <i> at 2023-03-21T11:17:53-04:00 </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;'>docs: add TASK_DELETE event in eventlog encodings

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bb05b4ccdfe81e9fc60065337eafa9c94499ad61">bb05b4cc</a></strong>

<div>

<span> by Adam Sandberg Ericsson </span> <i> at 2023-03-21T11:17:53-04:00 </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;'>docs: add WALL_CLOCK_TIME event in eventlog encodings

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/eeea0343f1bd5e3359c32c10fffb2a300c4924ba">eeea0343</a></strong>

<div>

<span> by Torsten Schmits </span> <i> at 2023-03-21T11:18:34-04:00 </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 structured error messages for GHC.Tc.Utils.Env

Tracking ticket: #20119

MR: !10129

This converts uses of `mkTcRnUnknownMessage` to newly added constructors

of `TcRnMessage`.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/be1d4be8d09072091b77cb68ccf234434754af00">be1d4be8</a></strong>

<div>

<span> by Bodigrim </span> <i> at 2023-03-21T11:19:13-04:00 </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;'>Document pdep / pext primops

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e8b4aac437b2620d93546a57eb5818f317a4549e">e8b4aac4</a></strong>

<div>

<span> by Alex Mason </span> <i> at 2023-03-21T18:11:04-04:00 </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;'>Allow LLVM backend to use HDoc for faster file generation.

Also remove the MetaStmt constructor from LlvmStatement and places the annotations into the Store statement.

Includes “Implement a workaround for -no-asm-shortcutting bug“ (https://gitlab.haskell.org/ghc/ghc/-/commit/2fda9e0df886cc551e2cd6b9c2a384192bdc3045)

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ea24360d0548c905b6b2427b5cdcb82d3cd296ae">ea24360d</a></strong>

<div>

<span> by Luite Stegeman </span> <i> at 2023-03-21T18:11:44-04:00 </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;'>Compute LambdaFormInfo when using JavaScript backend.

CmmCgInfos is needed to write interface files, but the

JavaScript backend does not generate it, causing

"Name without LFInfo" warnings.

This patch adds a conservative but always correct

CmmCgInfos when the JavaScript backend is used.

Fixes #23053

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/926ad6ded5cb5e8162914e746ee001fc8d1658ec">926ad6de</a></strong>

<div>

<span> by Simon Peyton Jones </span> <i> at 2023-03-22T01:03:08-04:00 </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;'>Be more careful about quantification

This MR is driven by #23051. It does several things:

* It is guided by the generalisation plan described in #20686.

  But it is still far from a complete implementation of that plan.

* Add Note [Inferred type with escaping kind] to GHC.Tc.Gen.Bind.

  This explains that we don't (yet, pending #20686) directly

  prevent generalising over escaping kinds.

* In `GHC.Tc.Utils.TcMType.defaultTyVar` we default RuntimeRep

  and Multiplicity variables, beause we don't want to quantify over

  them.  We want to do the same for a Concrete tyvar, but there is

  nothing sensible to default it to (unless it has kind RuntimeRep,

  in which case it'll be caught by an earlier case). So we promote

  instead.

* Pure refactoring in GHC.Tc.Solver:

  * Rename decideMonoTyVars to decidePromotedTyVars, since that's

    what it does.

  * Move the actual promotion of the tyvars-to-promote from

    `defaultTyVarsAndSimplify` to `decidePromotedTyVars`.  This is a

    no-op; just tidies up the code.  E.g then we don't need to

    return the promoted tyvars from `decidePromotedTyVars`.

  * A little refactoring in `defaultTyVarsAndSimplify`, but no

    change in behaviour.

* When making a TauTv unification variable into a ConcreteTv

  (in GHC.Tc.Utils.Concrete.makeTypeConcrete), preserve the occ-name

  of the type variable.  This just improves error messages.

* Kill off dead code: GHC.Tc.Utils.TcMType.newConcreteHole

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0ab0cc119c6d222d50e0970fddb679a6eeef80de">0ab0cc11</a></strong>

<div>

<span> by Sylvain Henry </span> <i> at 2023-03-22T01:03:48-04:00 </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;'>Testsuite: use appropriate predicate for ManyUbxSums test (#22576)

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/048c881ee5b11716e37cebe43f2d2eac878c04fb">048c881e</a></strong>

<div>

<span> by romes </span> <i> at 2023-03-22T01:04:24-04:00 </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;'>fix: Incorrect @since annotations in GHC.TypeError

Fixes #23128

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a1528b68318d5b94acad1f427037e4d326847468">a1528b68</a></strong>

<div>

<span> by Sylvain Henry </span> <i> at 2023-03-22T01:05:04-04:00 </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;'>Testsuite: use req_interp predicate for T16318 (#22370)

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ad765b6f0bb23576fb4e7690a29fa07fc1dfff11">ad765b6f</a></strong>

<div>

<span> by Sylvain Henry </span> <i> at 2023-03-22T01:05:04-04:00 </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;'>Testsuite: use req_interp predicate for T20214

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e0b8eaf3fc3d2ebbdcc86610b889930dbe5b4cdb">e0b8eaf3</a></strong>

<div>

<span> by Simon Peyton Jones </span> <i> at 2023-03-22T09:50:13+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;'>Refactor the constraint solver pipeline

The big change is to put the entire type-equality solver into

GHC.Tc.Solver.Equality, rather than scattering it over Canonical

and Interact.  Other changes

* EqCt becomes its own data type, a bit like QCInst.  This is

  great because EqualCtList is then just [EqCt]

* New module GHC.Tc.Solver.Dict has come of the class-contraint

  solver.  In due course it will be all.  One step at a time.

This MR is intended to have zero change in behaviour: it is a

pure refactor.  It opens the way to subsequent tidying up, we

believe.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cedf9a3b7a74a7c1c09e8b994edc40a2447dae08">cedf9a3b</a></strong>

<div>

<span> by Torsten Schmits </span> <i> at 2023-03-22T15:31:18-04:00 </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;'>Add structured error messages for GHC.Tc.Utils.TcMType

Tracking ticket: #20119

MR: !10138

This converts uses of `mkTcRnUnknownMessage` to newly added constructors

of `TcRnMessage`.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/30d45e971d94b3c28296a3f20f94275f38bc89d1">30d45e97</a></strong>

<div>

<span> by Sylvain Henry </span> <i> at 2023-03-22T15:32:01-04:00 </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;'>Testsuite: use js_skip for T2615 (#22374)

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8c98deba9a0b8136f858ecc5d7a6948dcf60820e">8c98deba</a></strong>

<div>

<span> by Armando Ramirez </span> <i> at 2023-03-23T09:19:32-04:00 </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;'>Optimized Foldable methods for Data.Functor.Compose

Explicitly define length, elem, etc. in Foldable instance for Data.Functor.Compose

Implementation of https://github.com/haskell/core-libraries-committee/issues/57

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bc0661081aa9c61cc031546cf2b7d58f46a4f5be">bc066108</a></strong>

<div>

<span> by Armando Ramirez </span> <i> at 2023-03-23T09:19:32-04:00 </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;'>Additional optimized versions

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/80fce576d001a6a1182d426020349e496b179496">80fce576</a></strong>

<div>

<span> by Bodigrim </span> <i> at 2023-03-23T09:19:32-04:00 </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;'>Simplify minimum/maximum in instance Foldable (Compose f g)

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8cb88a5ade9427ca2f26e7f2dbf9defb8fb0ed22">8cb88a5a</a></strong>

<div>

<span> by Bodigrim </span> <i> at 2023-03-23T09:19:32-04:00 </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;'>Update changelog to mention changes to instance Foldable (Compose f g)

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e1c8c41d62854553d889403d8ee52d120c26bc66">e1c8c41d</a></strong>

<div>

<span> by Torsten Schmits </span> <i> at 2023-03-23T09:20:13-04:00 </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 structured error messages for GHC.Tc.TyCl.PatSyn

Tracking ticket: #20117

MR: !10158

This converts uses of `mkTcRnUnknownMessage` to newly added constructors

of `TcRnMessage`.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f932c5890ec358aa0cbba547eb6982168e13da37">f932c589</a></strong>

<div>

<span> by Adam Gundry </span> <i> at 2023-03-24T02:36:09-04:00 </i>

</div>

<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "Menlo"),"DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Allow WARNING pragmas to be controlled with custom categories

Closes #17209. This implements GHC Proposal 541, allowing a WARNING

pragma to be annotated with a category like so:

    {-# WARNING in "x-partial" head "This function is undefined on empty lists." #-}

The user can then enable, disable and set the severity of such warnings

using command-line flags `-Wx-partial`, `-Werror=x-partial` and so on.  There

is a new warning group `-Wextended-warnings` containing all these warnings.

Warnings without a category are treated as if the category was `deprecations`,

and are (still) controlled by the flags `-Wdeprecations`

and `-Wwarnings-deprecations`.

Updates Haddock submodule.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0426515be8836acfdde7ddc9cf35a99a7a73f278">0426515b</a></strong>

<div>

<span> by Adam Gundry </span> <i> at 2023-03-24T02:36:09-04:00 </i>

</div>

<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.875rem; color: #333238; position: relative; font-family: var(--default-mono-font, "Menlo"),"DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Move mention of warning groups change to 9.8.1 release notes

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b8d783d24b9a617ad1e3038abeb75d322703ef65">b8d783d2</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-24T02:36:45-04:00 </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;'>nativeGen/AArch64: Fix bitmask immediate predicate

Previously the predicate for determining whether a logical instruction

operand could be encoded as a bitmask immediate was far too

conservative. This meant that, e.g., pointer untagged required five

instructions whereas it should only require one.

Fixes #23030.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/46120bb637452be6e16e5dd7091c0b469a5adcd5">46120bb6</a></strong>

<div>

<span> by Joachim Breitner </span> <i> at 2023-03-24T13:09:43-04:00 </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;'>User's guide: Improve docs for -Wall

previously it would list the warnings _not_ enabled by -Wall. That’s

unnecessary round-about and was out of date. So let's just name

the relevant warnings (based on `compiler/GHC/Driver/Flags.hs`).

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/509d1f11bf4e7eb4b916ae1c33abc48047b3be0e">509d1f11</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-24T13:10:20-04:00 </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;'>codeGen/tsan: Disable instrumentation of unaligned stores

There is some disagreement regarding the prototype of

`__tsan_unaligned_write` (specifically whether it takes just the written

address, or the address and the value as an argument). Moreover, I have

observed crashes which appear to be due to it. Disable instrumentation

of unaligned stores as a temporary mitigation.

Fixes #23096.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6a73655fd6d22f0fd7e1c24d0d07a573b6bdc042">6a73655f</a></strong>

<div>

<span> by Li-yao Xia </span> <i> at 2023-03-25T00:02:44-04:00 </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;'>base: Document GHC versions associated with past base versions in the changelog

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/43bd76946233fd0b21293917be8fd455341cb6d3">43bd7694</a></strong>

<div>

<span> by Teo Camarasu </span> <i> at 2023-03-25T00:03:24-04:00 </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;'>Add regression test for #17574

This test currently fails in the nonmoving way

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f2d56bf735185a59d7ce916edcf6a97f1401b230">f2d56bf7</a></strong>

<div>

<span> by Teo Camarasu </span> <i> at 2023-03-25T00:03:24-04:00 </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;'>fix: account for large and compact object stats with nonmoving gc

Make sure that we keep track of the size of large and compact objects that have been moved onto the nonmoving heap.

We keep track of their size and add it to the amount of live bytes in nonmoving segments to get the total size of the live nonmoving heap.

Resolves #17574

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/7131b705d54ed7ed20e9946d9ace45228ec5febd">7131b705</a></strong>

<div>

<span> by David Feuer </span> <i> at 2023-03-25T00:04:04-04:00 </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;'>Modify ThreadId documentation and comments

For a long time, `GHC.Conc.Sync` has said

```haskell

-- ToDo: data ThreadId = ThreadId (Weak ThreadId#)

-- But since ThreadId# is unlifted, the Weak type must use open

-- type variables.

```

We are now actually capable of using `Weak# ThreadId#`, but the

world has moved on. To support the `Show` and `Ord` instances, we'd

need to store the thread ID number in the `ThreadId`. And it seems

very difficult to continue to support `threadStatus` in that regime,

since it needs to be able to explain how threads died. In addition,

garbage collection of weak references can be quite expensive, and it

would be hard to evaluate the cost over he whole ecosystem. As discussed

in

[this CLC issue](https://github.com/haskell/core-libraries-committee/issues/125),

it doesn't seem very likely that we'll actually switch to weak

references here.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c421bbbbf2a353858dda8f998d4997cce5977c03">c421bbbb</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-25T00:04:41-04:00 </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;'>rts: Fix barriers of IND and IND_STATIC

Previously IND and IND_STATIC lacked the acquire barriers enjoyed by

BLACKHOLE. As noted in the (now updated) Note [Heap memory barriers],

this barrier is critical to ensure that the indirectee is visible to the

entering core.

Fixes #22872.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/62fa7faaf8ca2d34cda3e3b7c4c6b2d13efa16fe">62fa7faa</a></strong>

<div>

<span> by Bodigrim </span> <i> at 2023-03-25T00:05:22-04:00 </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;'>Improve documentation of atomicModifyMutVar2#

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b2d14d0b8ebb517139c08934a52791f21fe893f6">b2d14d0b</a></strong>

<div>

<span> by Cheng Shao </span> <i> at 2023-03-25T03:46:43-04:00 </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;'>rts: use performBlockingMajorGC in hs_perform_gc and fix ffi023

This patch does a few things:

- Add the missing RtsSymbols.c entry of performBlockingMajorGC

- Make hs_perform_gc call performBlockingMajorGC, which restores

  previous behavior

- Use hs_perform_gc in ffi023

- Remove rts_clearMemory() call in ffi023, it now works again in some

  test ways previously marked as broken. Fixes #23089

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d9ae24ad3de71e14364665ff1741aa3551e7c526">d9ae24ad</a></strong>

<div>

<span> by Cheng Shao </span> <i> at 2023-03-25T03:46:44-04:00 </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;'>testsuite: add the rts_clearMemory test case

This patch adds a standalone test case for rts_clearMemory that mimics

how it's typically used by wasm backend users and ensures this RTS API

isn't broken by future RTS refactorings. Fixes #23901.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/80729d96e47c99dc38e83612dfcfe01cf565eac0">80729d96</a></strong>

<div>

<span> by Bodigrim </span> <i> at 2023-03-25T03:47:22-04:00 </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;'>Improve documentation for resizing of byte arrays

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c6ec4cd1a94a1b76b7b094d5c92ee605031ecf60">c6ec4cd1</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-25T20:23:47-04:00 </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;'>rts: Don't rely on EXTERN_INLINE for slop-zeroing logic

Previously we relied on calling EXTERN_INLINE functions defined in

ClosureMacros.h from Cmm to zero slop. However, as far as I can tell,

this is no longer safe to do in C99 as EXTERN_INLINE definitions may be emitted

in each compilation unit.

Fix this by explicitly declaring a new set of non-inline functions in

ZeroSlop.c which can be called from Cmm and marking the ClosureMacros.h

definitions as INLINE_HEADER.

In the future we should try to eliminate EXTERN_INLINE.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c32abd4b936b3dfc61974ed5915c330fe7ed10d5">c32abd4b</a></strong>

<div>

<span> by Ben Gamari </span> <i> at 2023-03-25T20:23:48-04:00 </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;'>rts: Fix capability-count check in zeroSlop

Previously `zeroSlop` examined `RtsFlags` to determine whether the

program was single-threaded. This is wrong; a program may be started

with `+RTS -N1` yet the process may later increase the capability count

with `setNumCapabilities`. This lead to quite subtle and rare crashes.

Fixes #23088.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/656d4cb3e3a450ececcc72ffd2aca6f8e6489102">656d4cb3</a></strong>

<div>

<span> by Ryan Scott </span> <i> at 2023-03-25T20:24:23-04:00 </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;'>Add Eq/Ord instances for SSymbol, SChar, and SNat

This implements [CLC proposal #148](https://github.com/haskell/core-libraries-committee/issues/148).

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4f93de888fb8be5241b476442045eb40b2a5abbd">4f93de88</a></strong>

<div>

<span> by David Feuer </span> <i> at 2023-03-26T15:33:02-04:00 </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;'>Update and expand atomic modification Haddocks

* The documentation for `atomicModifyIORef` and `atomicModifyIORef'`

  were incomplete, and the documentation for `atomicModifyIORef` was

  out of date. Update and expand.

* Remove a useless lazy pattern match in the definition of

  `atomicModifyIORef`. The pair it claims to match lazily

  was already forced by `atomicModifyIORef2`.

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e1fb56b24e2fe45a6f628f651bfc12b2b9743378">e1fb56b2</a></strong>

<div>

<span> by David Feuer </span> <i> at 2023-03-26T15:33:41-04:00 </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;'>Document the constructor name for lists

Derived `Data` instances use raw infix constructor names when applicable.

The `Data.Data [a]` instance, if derived, would have a constructor name

of `":"`. However, it actually uses constructor name `"(:)"`. Document this

peculiarity.

See https://github.com/haskell/core-libraries-committee/issues/147

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c1f755c4bebec04b8942f36c1f2a2a1772dbe28b">c1f755c4</a></strong>

<div>

<span> by Simon Peyton Jones </span> <i> at 2023-03-27T22:09:41+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;'>Make exprIsConApp_maybe a bit cleverer

Addresses #23159.

See Note Note [Exploit occ-info in exprIsConApp_maybe]

in GHC.Core.SimpleOpt.

Compile times go down very slightly, but always go down,

never up.  Good!

Metrics: compile_time/bytes allocated

------------------------------------------------

 CoOpt_Singletons(normal)   -1.8%

           T15703(normal)   -1.2% GOOD

                geo. mean   -0.1%

                minimum     -1.8%

                maximum     +0.0%

Metric Decrease:

    CoOpt_Singletons

    T15703

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/76bb4c586084d7fdcf0e5ce52623abbfca527c55">76bb4c58</a></strong>

<div>

<span> by Ryan Scott </span> <i> at 2023-03-28T08:12:08-04:00 </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 COMPLETE pragmas to TypeRep, SSymbol, SChar, and SNat

This implements

[CLC proposal #149](https://github.com/haskell/core-libraries-committee/issues/149).

</pre>

</li>

<li>

<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b727a4ee8b47c1fe6cee3689ddf16246b9a077ea">b727a4ee</a></strong>

<div>

<span> by Krzysztof Gogolewski </span> <i> at 2023-03-30T18:14:13+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;'>Fixes around unsafeCoerce#

1. `unsafeCoerce#` was documented in `GHC.Prim`. But since the overhaul

in 74ad75e87317, `unsafeCoerce#` is no longer defined there.

I've combined the documentation in `GHC.Prim` with the `Unsafe.Coerce` module.

2. The documentation of `unsafeCoerce#` stated that you should not

cast a function to an algebraic type, even if you later cast it back

before applying it. But ghci was doing that type of cast, as can be seen

with 'ghci -ddump-ds' and typing 'x = not'. I've changed it to use Any

following the documentation.

</pre>

</li>

</ul>

<h4 style="margin-top: 10px; margin-bottom: 10px;">

30 changed files:

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compiler/GHC/CmmToLlvm/Ppr.hs

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compiler/GHC/Core.hs

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compiler/GHC/Core/Class.hs

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compiler/GHC/Core/Coercion.hs

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compiler/GHC/Core/Coercion/Opt.hs

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compiler/GHC/Core/DataCon.hs

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compiler/GHC/Core/InstEnv.hs

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compiler/GHC/Core/Lint.hs

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compiler/GHC/Core/Opt/Arity.hs

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