<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html lang="en">
<head>
<meta content="text/html; charset=US-ASCII" http-equiv="Content-Type">
<title>
GitLab
</title>
<style data-premailer="ignore" type="text/css">
a { color: #1068bf; }
</style>
<style>img {
max-width: 100%; height: auto;
}
body {
font-size: 0.875rem;
}
body {
-webkit-text-shadow: rgba(255,255,255,0.01) 0 0 1px;
}
body {
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans", Ubuntu, Cantarell, "Helvetica Neue", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"; font-size: inherit;
}
</style>
</head>
<body style='font-size: inherit; -webkit-text-shadow: rgba(255,255,255,0.01) 0 0 1px; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans", Ubuntu, Cantarell, "Helvetica Neue", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";'>
<div class="content">
<h3 style="margin-top: 20px; margin-bottom: 10px;">
Simon Peyton Jones pushed to branch wip/T22459 at <a href="https://gitlab.haskell.org/ghc/ghc" style="color: #1068bf;">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/e9d74a3e47a4709502d7c1923b8611c22183b777" style="color: #1068bf;">e9d74a3e</a></strong>
<div>
<span> by Sebastian Graf </span> <i> at 2022-12-13T22:18:39-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Respect -XStrict in the pattern-match checker (#21761)
We were missing a call to `decideBangHood` in the pattern-match checker.
There is another call in `matchWrapper.mk_eqn_info` which seems redundant
but really is not; see `Note [Desugaring -XStrict matches in Pmc]`.
Fixes #21761.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/884790e2f3480dfcd73b1c094123555956eac6e0" style="color: #1068bf;">884790e2</a></strong>
<div>
<span> by Gergő Érdi </span> <i> at 2022-12-13T22:19:14-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Fix loop in the interface representation of some `Unfolding` fields
As discovered in #22272, dehydration of the unfolding info of a
recursive definition used to involve a traversal of the definition
itself, which in turn involves traversing the unfolding info. Hence,
a loop.
Instead, we now store enough data in the interface that we can produce
the unfolding info without this traversal. See Note [Tying the 'CoreUnfolding' knot]
for details.
Fixes #22272
Co-authored-by: Simon Peyton Jones <simon.peytonjones@gmail.com>
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9f3011896aa3dc8cc14bd61ccb68ab09e17c330e" style="color: #1068bf;">9f301189</a></strong>
<div>
<span> by Alan Zimmerman </span> <i> at 2022-12-13T22:19:50-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>EPA: When splitting out header comments, keep ones for first decl
Any comments immediately preceding the first declaration are no longer
kept as header comments, but attach to the first declaration instead.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8b1f1b4503b810c40d37af797f1c7c566250c3d0" style="color: #1068bf;">8b1f1b45</a></strong>
<div>
<span> by Sylvain Henry </span> <i> at 2022-12-13T22:20:28-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>JS: fix object file name comparison (#22578)
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e9e161bb8f416a0cfd1ba7918f9ffafb19cd8372" style="color: #1068bf;">e9e161bb</a></strong>
<div>
<span> by Bryan Richter </span> <i> at 2022-12-13T22:21:03-05:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>configure: Bump min bootstrap GHC version to 9.2
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/62ca714781b6ef07dcaa13e6fcffa4ae0f83b677" style="color: #1068bf;">62ca7147</a></strong>
<div>
<span> by Simon Peyton Jones </span> <i> at 2022-12-14T08:25:36+00:00 </i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Abstract over the right free vars
Fix #22459, in two ways:
(1) Make the Specialiser not create a bogus specialisation if
it is presented by strangely polymorphic dictionary.
See Note [Weird special case in SpecDict] in
GHC.Core.Opt.Specialise
(2) Be more careful in abstractFloats
See Note [Which type variables to abstract over]
in GHC.Core.Opt.Simplify.Utils.
So (2) stops creating the excessively polymorphic dictionary in
abstractFloats, while (1) stops crashing if some other pass should
nevertheless create a weirdly polymorphic dictionary.
</pre>
</li>
</ul>
<h4 style="margin-top: 10px; margin-bottom: 10px;">
30 changed files:
</h4>
<ul>
<li class="file-stats">
<a href="#182d6a315e784018aa9c8b2ad736036b97bd5d48" style="color: #1068bf;">
compiler/GHC/Core.hs
</a>
</li>
<li class="file-stats">
<a href="#ae6d91a5d028418bbf1431347d659e744e0a3128" style="color: #1068bf;">
compiler/GHC/Core/Opt/Simplify/Iteration.hs
</a>
</li>
<li class="file-stats">
<a href="#48fbb5cdea308650de5756521feb28ec68819b9b" style="color: #1068bf;">
compiler/GHC/Core/Opt/Simplify/Utils.hs
</a>
</li>
<li class="file-stats">
<a href="#ab22d7ae4d245581b701367e386d7e886e416e76" style="color: #1068bf;">
compiler/GHC/Core/Opt/Specialise.hs
</a>
</li>
<li class="file-stats">
<a href="#a8e2a1e5829eb3b4809201e0f47e91b64ce11b96" style="color: #1068bf;">
compiler/GHC/Core/Ppr.hs
</a>
</li>
<li class="file-stats">
<a href="#fc9bc4a052e9b8edbbdaaf18c1121e92bb6a0c00" style="color: #1068bf;">
compiler/GHC/Core/Seq.hs
</a>
</li>
<li class="file-stats">
<a href="#11ffe98a94d798427bc600e4fcfe899407536346" style="color: #1068bf;">
compiler/GHC/Core/SimpleOpt.hs
</a>
</li>
<li class="file-stats">
<a href="#708fab0a51bd47227233eda4698e750ff6de66e0" style="color: #1068bf;">
compiler/GHC/Core/Subst.hs
</a>
</li>
<li class="file-stats">
<a href="#846e2566b022c9a12a5978ac7934d5b019fbea5c" style="color: #1068bf;">
compiler/GHC/Core/Tidy.hs
</a>
</li>
<li class="file-stats">
<a href="#2811a7297b8aa206197ac1f5dabd0818e3c7ec5a" style="color: #1068bf;">
compiler/GHC/Core/Unfold.hs
</a>
</li>
<li class="file-stats">
<a href="#940913dd549c6b1c334daafbc4b7eef29c94d924" style="color: #1068bf;">
compiler/GHC/Core/Unfold/Make.hs
</a>
</li>
<li class="file-stats">
<a href="#1a7aba0daeafab195716dd25432479804a55ab60" style="color: #1068bf;">
compiler/GHC/Core/Utils.hs
</a>
</li>
<li class="file-stats">
<a href="#bbf06eb5d4f0db7bc3213b84b9f5822710ff7be8" style="color: #1068bf;">
compiler/GHC/CoreToIface.hs
</a>
</li>
<li class="file-stats">
<a href="#64e68d52c0898049455e20b0d001ffe1dd07ff83" style="color: #1068bf;">
compiler/GHC/Driver/Pipeline/Execute.hs
</a>
</li>
<li class="file-stats">
<a href="#950eaa7de202a2e915b5ff68a4cfd16e972ad359" style="color: #1068bf;">
compiler/GHC/HsToCore/Pmc/Desugar.hs
</a>
</li>
<li class="file-stats">
<a href="#d11de0586c9bcbcf4c5d10d94801cc1f97e8df1b" style="color: #1068bf;">
compiler/GHC/Iface/Rename.hs
</a>
</li>
<li class="file-stats">
<a href="#079d6b28856775716c78fdd4a4b35bb45a59002c" style="color: #1068bf;">
compiler/GHC/Iface/Syntax.hs
</a>
</li>
<li class="file-stats">
<a href="#06ff7bac58fd8cfe0c17b81963b03f4cce86a065" style="color: #1068bf;">
compiler/GHC/IfaceToCore.hs
</a>
</li>
<li class="file-stats">
<a href="#a1ae0a1be35c859d90b0756920a7198075fb91e1" style="color: #1068bf;">
compiler/GHC/Parser/Lexer.x
</a>
</li>
<li class="file-stats">
<a href="#87db583be5c13c1f7b3c958b10e03d67b6a2ca06" style="color: #1068bf;">
configure.ac
</a>
</li>
<li class="file-stats">
<a href="#b74ba5875fd7cccd72bb96f5e09ffd324e58a963" style="color: #1068bf;">
testsuite/tests/deSugar/should_compile/T13208.stdout
</a>
</li>
<li class="file-stats">
<a href="#c667b660d548272e27f44bf34c9a844c019bd6f7" style="color: #1068bf;">
testsuite/tests/ghc-api/exactprint/Test20239.stderr
</a>
</li>
<li class="file-stats">
<a href="#73459bdd68c8a1d83dd2fc05500d4d379b541a3d" style="color: #1068bf;">
testsuite/tests/numeric/should_compile/T14170.stdout
</a>
</li>
<li class="file-stats">
<a href="#68981928c0d335390bba962b95dc1104a8881d05" style="color: #1068bf;">
testsuite/tests/numeric/should_compile/T14465.stdout
</a>
</li>
<li class="file-stats">
<a href="#e6a25af732cafed9cd91b716ddbdb29b303bd865" style="color: #1068bf;">
testsuite/tests/numeric/should_compile/T7116.stdout
</a>
</li>
<li class="file-stats">
<a href="#be9985ec9f4abb514a21f1b8c702ed79b3923e21" style="color: #1068bf;">
testsuite/tests/parser/should_compile/DumpParsedAstComments.hs
</a>
</li>
<li class="file-stats">
<a href="#9482c0bcbf68d452f1bc906433629045ac39c94b" style="color: #1068bf;">
testsuite/tests/parser/should_compile/DumpParsedAstComments.stderr
</a>
</li>
<li class="file-stats">
<a href="#45d93a5043e32ed2520b8ec823f897578c33967e" style="color: #1068bf;">
<span class="new-file">
+
testsuite/tests/pmcheck/should_compile/T21761.hs
</span>
</a>
</li>
<li class="file-stats">
<a href="#bd32c101f51018f5bfa906d0bacc91bbf65ef706" style="color: #1068bf;">
<span class="new-file">
+
testsuite/tests/pmcheck/should_compile/T21761.stderr
</span>
</a>
</li>
<li class="file-stats">
<a href="#a52966ece03f9e76a93a2c4ea96b9fb25368723d" style="color: #1068bf;">
testsuite/tests/pmcheck/should_compile/all.T
</a>
</li>
</ul>
<h5 style="margin-top: 10px; margin-bottom: 10px; font-size: 0.875rem;">
The diff was not included because it is too large.
</h5>
</div>
<div class="footer" style="margin-top: 10px;">
<p style="font-size: small; color: #666;">
—
<br>
<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/7bf221fafb50f80d0326e1095a75f4105016e354...62ca714781b6ef07dcaa13e6fcffa4ae0f83b677" style="color: #1068bf;">View it on GitLab</a>.
<br>
You're receiving this email because of your account on <a target="_blank" rel="noopener noreferrer" href="https://gitlab.haskell.org" style="color: #1068bf;">gitlab.haskell.org</a>. <a href="https://gitlab.haskell.org/-/profile/notifications" target="_blank" rel="noopener noreferrer" class="mng-notif-link" style="color: #1068bf;">Manage all notifications</a> · <a href="https://gitlab.haskell.org/help" target="_blank" rel="noopener noreferrer" class="help-link" style="color: #1068bf;">Help</a>
</p>
</div>
</body>
</html>