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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/ea1cbb8f2ac9e077ed19530911c3a35c5f46ee8a">ea1cbb8f</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-09-08T15:42:02-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts: Add stg_copyArray_barrier to RtsSymbols list
It's incredible that this wasn't noticed until now.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d7b2f799469a969ad7a2535be57f105186946c40">d7b2f799</a></strong>
<div>
<span>by Daishi Nakajima</span>
<i>at 2020-09-08T15:42:41-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">testsuite: Output performance test results in tabular format
this was suggested in #18417.
Change the print format of the values.
* Shorten commit hash
* Reduce precision of the "Value" field
* Shorten metrics name
* e.g. runtime/bytes allocated -> run/alloc
* Shorten "MetricsChange"
* e.g. unchanged -> unch, increased -> incr
And, print the baseline environment if there are baselines that were
measured in a different environment than the current environment.
If all "Baseline commit" are the same, print it once.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/44472daf500bf862921e89ad45c9741a07a64f61">44472daf</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2020-09-08T15:43:16-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Make the forall-or-nothing rule only apply to invisible foralls (#18660)
This fixes #18660 by changing `isLHsForAllTy` to
`isLHsInvisForAllTy`, which is sufficient to make the
`forall`-or-nothing rule only apply to invisible `forall`s. I also
updated some related documentation and Notes while I was in the
neighborhood.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0c61cbfff985723240671b54d6f80075e4907e85">0c61cbff</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-09-08T15:43:54-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Handle distributions without locales
Previously we would assume that the `locale` utility exists. However,
this is not so on Alpine as musl's locale support is essentially
non-existent.
(cherry picked from commit 17cdb7ac3b557a245fee1686e066f9f770ddc21e)
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d989c84225090f850591e9f4f82adffbf8c96cac">d989c842</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-09-08T15:43:55-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Accept Centos 7 C.utf8 locale
Centos apparently has C.utf8 rather than C.UTF-8.
(cherry picked from commit d9f85dd25a26a04d3485470afb3395ee2dec6464)
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4594c61c8a1affc6c1423b64bf97c67596d6361e">4594c61c</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2020-09-08T19:15:58-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Use "to" instead of "2" in internal names of conversion ops
Change the constructors for the primop union, and also names of the
literal conversion functions.
"2" runs into trouble when we need to do conversions from fixed-width
types, and end up with thing like "Int642Word".
Only the names internal to GHC are changed, as I don't want to worry
about breaking changes ATM.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c862c673eaababb1d81a6e3d4ecf8a4eefd8401d">c862c673</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2020-09-08T19:15:59-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Postpone associated tyfam default checks until after typechecking
Previously, associated type family defaults were validity-checked
during typechecking. Unfortunately, the error messages that these
checks produce run the risk of printing knot-tied type constructors,
which will cause GHC to diverge. In order to preserve the current
error message's descriptiveness, this patch postpones these validity
checks until after typechecking, which are now located in the new
function `GHC.Tc.Validity.checkValidAssocTyFamDeflt`.
Fixes #18648.
</pre>
</li>
</ul>
<h4>30 changed files:</h4>
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<li class="file-stats">
<a href="#157f7634c25bc6366cb7c9c9edb48e819dce38db">
.gitlab/ci.sh
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<a href="#451725cc4e5d443a3b7c2adcdf224840f953b7e2">
compiler/GHC/Builtin/primops.txt.pp
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<a href="#e39f2416dd3b2af571ddd26dcca3476a55810c41">
compiler/GHC/Core/Class.hs
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<a href="#aa79261abf782f3dc603af7fbd5c4b08ed3ddb88">
compiler/GHC/Core/Opt/ConstantFold.hs
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<a href="#018be522bc4813b147a1525e4f96a7a493207d96">
compiler/GHC/Hs/Type.hs
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<a href="#079d6b28856775716c78fdd4a4b35bb45a59002c">
compiler/GHC/Iface/Syntax.hs
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<a href="#06ff7bac58fd8cfe0c17b81963b03f4cce86a065">
compiler/GHC/IfaceToCore.hs
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<a href="#892acbb198a9095c917740d3c1297b56df4e3b7e">
compiler/GHC/Rename/HsType.hs
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<a href="#d12a108e34fe83acc9c99357ae841e22a0af0a23">
compiler/GHC/StgToCmm/Prim.hs
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<a href="#83d23a46bb6cdc8b1edc16f1fd2c8f5c53e2c9ca">
compiler/GHC/Tc/TyCl.hs
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<a href="#1db07ed8cd9bab6b217a8f5a140176d3cb8672fd">
compiler/GHC/Tc/Validity.hs
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<a href="#ee98f016857ad5548bb7cdc5dd85246585acdfd6">
compiler/GHC/Types/Literal.hs
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<a href="#afd1105d8e32dc50acf9fc381b4433a3bcd009cf">
docs/users_guide/exts/explicit_forall.rst
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<a href="#16c842a51a135c8ef2c7c7f94336544868348a3c">
rts/RtsSymbols.c
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<a href="#6e9e255267780d64d50e2445aee2360e1269dcf1">
testsuite/driver/perf_notes.py
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<a href="#326e115e015c04db679ca1d9dbc1092906bef3a6">
testsuite/driver/runtests.py
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<a href="#f7e2e917dfdc5406b5ef1180f10be0a2973586c1">
testsuite/driver/testutil.py
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testsuite/tests/dependent/should_compile/T18660.hs
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<a href="#a4ff33ccde330caaa403f371defa5ddc5ad10c84">
testsuite/tests/dependent/should_compile/all.T
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<a href="#0942e35743c77f939f29199ed453d13b576a52e9">
testsuite/tests/indexed-types/should_compile/T11361a.stderr
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<a href="#f5b2262300e77de7b0dbf5f0bd21be0a48df6f4f">
testsuite/tests/indexed-types/should_fail/SimpleFail4.stderr
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<a href="#69edc75f6597d0874498e964811e0c9ea4b7b1ef">
testsuite/tests/indexed-types/should_fail/T13971.stderr
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<a href="#ad0b4d579659de4effeafb89612694d8b6b98bf6">
testsuite/tests/indexed-types/should_fail/T13971b.stderr
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<a href="#a605ff400901085182447c89828b2de1a5dbb0f6">
testsuite/tests/indexed-types/should_fail/T16110_Fail2.stderr
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testsuite/tests/indexed-types/should_fail/T16110_Fail3.stderr
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<a href="#0509b890ea835e45302350905e2fbc28d868c7d5">
testsuite/tests/indexed-types/should_fail/T16356_Fail1.stderr
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<a href="#8029ad8879e2eade66ead20902b7f97ae4966d6d">
testsuite/tests/indexed-types/should_fail/T16356_Fail2.stderr
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testsuite/tests/indexed-types/should_fail/T18648.hs
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testsuite/tests/indexed-types/should_fail/T18648.stderr
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testsuite/tests/indexed-types/should_fail/all.T
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