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<h3>
Marge Bot pushed to branch wip/marge_bot_batch_merge_job
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
</h3>
<h4>
Commits:
</h4>
<ul>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/711929e6bcbcd5439dbf748cb57f56088b9a9f16">711929e6</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2020-10-23T02:42:59-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix error message location in tcCheckPatSynDecl
Ticket #18856 showed that we were failing to set the right location
for an error message. Easy to fix, happily.
Turns out that this also improves the error location in test T11010,
which was bogus before but we had never noticed.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/730bb59086ad1036143983c3fba61bd851bebc03">730bb590</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-10-23T02:43:33-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">cmm: Add Note reference to ForeignHint</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3708933fb95f62375dd237273d758f4b9a63b64c">3708933f</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2020-10-23T13:54:02+03:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Version bump: base-4.16 (#18712)
Also bumps upper bounds on base in boot libraries (incl. submodules).
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/58e4aba835165339406c4333cbc17cd012805a3d">58e4aba8</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-10-26T12:18:07-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">build system: Clean mingw tarballs
Tamar noticed in !4293 that the build systems fail to clean up the mingw
tarballs directory (`ghc-tarballs`). Fix this in both the make build
system and Hadrian.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8e1db39e77b02a9115bf8526b6520c30fc0a4dc7">8e1db39e</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2020-10-26T12:18:07-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix two constraint solving problems
This patch fixes two problems in the constraint solver.
* An actual bug #18555: we were floating out a constraint to eagerly,
and that was ultimately fatal. It's explained in
Note [Do not float blocked constraints] in GHC.Core.Constraint.
This is all very delicate, but it's all going to become irrelevant
when we stop floating constraints (#17656).
* A major performance infelicity in the flattener. When flattening
(ty |> co) we *never* generated Refl, even when there was nothing
at all to do. Result: we would gratuitously rewrite the constraint
to exactly the same thing, wasting work. Described in #18413, and
came up again in #18855.
Solution: exploit the special case by calling the new function
castCoercionKind1. See Note [castCoercionKind1] in
GHC.Core.Coercion
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/808aaef6ada757365f121820b003f0f926bc96fc">808aaef6</a></strong>
<div>
<span>by Sergei Trofimovich</span>
<i>at 2020-10-26T12:18:09-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">ghc.mk: amend 'make sdist'
Noticed 'make sdist' failure seen as:
```
"rm" -rf sdistprep/ghc/ghc-9.1.0.20201020/hadrian/_build/ (SRC_DIST_GHC_DIR)/hadrian/dist-newstyle/
/bin/sh: -c: line 0: syntax error near unexpected token `('
```
commit 9657f6f34
("sdist: Include hadrian sources in source distribution")
added a new cleanup path without a variable expantion.
The change adds variable reference. While at it move directory
cleanup to a separate statement.
Amends #18794
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/29cf005404d976672233e2704dfcf3820171340d">29cf0054</a></strong>
<div>
<span>by David Eichmann</span>
<i>at 2020-10-26T12:18:11-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Use config.run_ways for multi_compile_and_run tests
</pre>
</li>
</ul>
<h4>30 changed files:</h4>
<ul>
<li class="file-stats">
<a href="#7296b8b156359e17fb0fad7b82eaee2db3294144">
compiler/GHC/Cmm/Type.hs
</a>
</li>
<li class="file-stats">
<a href="#783e5dae6e86931f06700fc088fb7d48c8a07386">
compiler/GHC/Core/Coercion.hs
</a>
</li>
<li class="file-stats">
<a href="#91648438362e5a35363d2bb7abb04016dedd7d7e">
compiler/GHC/Core/FamInstEnv.hs
</a>
</li>
<li class="file-stats">
<a href="#578c7c3857d66d963736ff6742f3433a0e8d01b7">
compiler/GHC/Core/TyCo/Rep.hs
</a>
</li>
<li class="file-stats">
<a href="#89a2e0e1a3095c7a42b10f2819049908908080e8">
compiler/GHC/Core/Unify.hs
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</li>
<li class="file-stats">
<a href="#54436e21ea530a66a8a71bcc01c836f4740b8f02">
compiler/GHC/Tc/Solver.hs
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</li>
<li class="file-stats">
<a href="#81707f1fe21087531cefd70879aa09c2be5c1d22">
compiler/GHC/Tc/Solver/Flatten.hs
</a>
</li>
<li class="file-stats">
<a href="#5c0a7f8291c984f0fc06f59e7cf10dbecc11598b">
compiler/GHC/Tc/TyCl/PatSyn.hs
</a>
</li>
<li class="file-stats">
<a href="#0f33fd88c617246c7f89c4477d2d1d24f942df23">
compiler/ghc.cabal.in
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</li>
<li class="file-stats">
<a href="#8bdb62b981f38737157a853655e494433eea6796">
ghc.mk
</a>
</li>
<li class="file-stats">
<a href="#1f3a244b570ea9c168af7ba89b5321d0efd86b2b">
hadrian/src/Rules/Clean.hs
</a>
</li>
<li class="file-stats">
<a href="#9291b31007e89e8b38b9ca916cdad6f71073b937">
libraries/array
</a>
</li>
<li class="file-stats">
<a href="#b7cfb47853ef95330e499ca0c5b90964744d101f">
libraries/base/base.cabal
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<li class="file-stats">
<a href="#392e9dfd3417e267d708c5ab16536f2994d43745">
libraries/base/changelog.md
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</li>
<li class="file-stats">
<a href="#1f9e349c6faf0ce4022d1187385f4e265086172b">
libraries/deepseq
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</li>
<li class="file-stats">
<a href="#a76fbf30d162dc25f6f8c990c849b2f61b1e79e0">
libraries/directory
</a>
</li>
<li class="file-stats">
<a href="#188009555c31ecaa629c04bcbd48479540917707">
libraries/filepath
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<li class="file-stats">
<a href="#250037ded7e5c4810bdfaae1e241ff5dd4845713">
libraries/ghc-boot-th/ghc-boot-th.cabal.in
</a>
</li>
<li class="file-stats">
<a href="#0ebb2f2be655388ecccd3e7b71ac41cff1c7beba">
libraries/ghc-boot/ghc-boot.cabal.in
</a>
</li>
<li class="file-stats">
<a href="#2682fdbef3edef70800400cfe329cc02ca310b37">
libraries/ghc-compact/ghc-compact.cabal
</a>
</li>
<li class="file-stats">
<a href="#ab81fee2498272deb0b09bd2e7d4d9ed1923143a">
libraries/ghci/ghci.cabal.in
</a>
</li>
<li class="file-stats">
<a href="#d0aa0d9f2a5802e27fc6c95b421fff5662489df1">
libraries/haskeline
</a>
</li>
<li class="file-stats">
<a href="#42bcd36e5791e64370e1cb55417c82c34538bb7a">
libraries/hpc
</a>
</li>
<li class="file-stats">
<a href="#b50a0766e67822eb0253d333520811d8f33ad57d">
libraries/parsec
</a>
</li>
<li class="file-stats">
<a href="#f67cc2e98b7648e8223021d15db39fab317444b3">
libraries/process
</a>
</li>
<li class="file-stats">
<a href="#af5293b9a47977d962364074b7c9f2f8251149db">
libraries/stm
</a>
</li>
<li class="file-stats">
<a href="#8f8341958f03c71e1eee3b82a943baee4c8d42f6">
libraries/template-haskell/template-haskell.cabal.in
</a>
</li>
<li class="file-stats">
<a href="#8200fd8e1ae0735ef654e059662a5b048d0ee0e4">
libraries/terminfo
</a>
</li>
<li class="file-stats">
<a href="#c94f27a74551c6432f819bdfe482f1a46f1a1596">
libraries/unix
</a>
</li>
<li class="file-stats">
<a href="#c591f85f122007bac88228c5ff6fd76b40e6a811">
testsuite/driver/testlib.py
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</li>
</ul>
<h5>The diff was not included because it is too large.</h5>
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