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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/0799b3de3e3462224bddc0e4b6a3156d04a06361">0799b3de</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-09-18T15:55:50-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts/nonmoving: Add missing STM write barrier
When updating a TRec for a TVar already part of a transaction we
previously neglected to add the old value to the update remembered set.
I suspect this was the cause of #18587.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c492134912e5270180881b7345ee86dc32756bdd">c4921349</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-09-18T15:56:25-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts: Refactor foreign export tracking
This avoids calling `libc` in the initializers which are responsible for
registering foreign exports. We believe this should avoid the corruption
observed in #18548.
See Note [Tracking foreign exports] in rts/ForeignExports.c for an
overview of the new scheme.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/40dc91069d15bfc1d81f1722b39e06cac8fdddd1">40dc9106</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-09-18T15:56:25-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts: Refactor unloading of foreign export StablePtrs
Previously we would allocate a linked list cell for each foreign export.
Now we can avoid this by taking advantage of the fact that they are
already broken into groups.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/40b0fbbbcfc482c61ed390d7b63a70a5061c23df">40b0fbbb</a></strong>
<div>
<span>by Simon Jakobi</span>
<i>at 2020-09-18T16:27:12-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Deprecate Data.Semigroup.Option
Libraries email: https://mail.haskell.org/pipermail/libraries/2018-April/028724.html
GHC issue: https://gitlab.haskell.org/ghc/ghc/issues/15028
Corresponding PRs for deepseq:
* https://github.com/haskell/deepseq/pull/55
* https://github.com/haskell/deepseq/pull/57
Bumps the deepseq submodule.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/1f78b0fd15941556b1e18e7ca7c222b26471369d">1f78b0fd</a></strong>
<div>
<span>by Hécate</span>
<i>at 2020-09-18T16:27:15-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Remove the list of loaded modules from the ghci prompt
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/b1cd6cdc26cab7b03458b05fc7d6f63cea889425">b1cd6cdc</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2020-09-18T16:27:19-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Bump Stack resolver
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bb2f6555bd99c317d0c3f110b013365edf94c75f">bb2f6555</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2020-09-18T16:27:21-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Cinch -fno-warn-name-shadowing down to specific GHCi module
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/fb9d916e5462c7ab70040681645597316454c0ea">fb9d916e</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2020-09-18T16:27:21-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add quick-validate Hadrian flavour (quick + -Werror)
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8e9cf317f0b3714d623a37bf0ab016d3c1762fe2">8e9cf317</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-09-18T16:27:21-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix docs who misstated how the RTS treats size suffixes.
They are parsed as multiples of 1024. Not 1000. The docs
used to imply otherwise.
See decodeSize in rts/RtsFlags.c for the logic for this.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/96ab06e7beb30511b620d4e7aace71b5f5b0b784">96ab06e7</a></strong>
<div>
<span>by Andreas Klebinger</span>
<i>at 2020-09-18T16:27:21-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix a codeblock in ghci.rst
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/04140740ec475c30c8cfcf40d38ef2d4cd6a1208">04140740</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-09-18T16:27:21-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">users guide: Fix various documentation issues
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a4fb109727d4d8d11ef4feed0bb40cb4df1b5893">a4fb1097</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-09-18T16:27:21-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">hadrian: Fail on Sphinx syntax errors
Specifically the "Inline literal start-string without end-string"
warning, which typically means that the user neglected to separate
an inline code block from suffix text with a backslash.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/46559e8e8dd0cc4f4f02f10602c93c382d9dbdec">46559e8e</a></strong>
<div>
<span>by David Feuer</span>
<i>at 2020-09-18T16:27:23-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Unpack the MVar in Compact
The `MVar` lock in `Compact` was unnecessarily lazy, creating an extra indirection and wasting two words. Make it strict.</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/11c0c3338045c56eea668631db956a728168463e">11c0c333</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-09-18T16:27:23-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts: Drop field initializer on thread_basic_info_data_t
This struct has a number of fields and we only care that the value is
initialized with zeros. This eliminates the warnings noted in #17905.
</pre>
</li>
</ul>
<h4>30 changed files:</h4>
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<a href="#9f0ddacf1490a1a7356d3b8c1b8506b1a8bc6ad4">
compiler/GHC/HsToCore/Foreign/Decl.hs
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<li class="file-stats">
<a href="#85c07986c623f3180b40021d7109edd1e6a71a93">
docs/users_guide/9.0.1-notes.rst
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<a href="#afd1105d8e32dc50acf9fc381b4433a3bcd009cf">
docs/users_guide/exts/explicit_forall.rst
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<a href="#ed75822e0b6142f196a6abeb623c7669d31b4711">
docs/users_guide/exts/instances.rst
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<a href="#b02c1c6109c60b8f685234b0dbaabf6c79fed2a2">
docs/users_guide/ghci.rst
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<a href="#96a304b83d0bf4600831c1a4fbfe7fd74edeee69">
docs/users_guide/release-notes.rst
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<a href="#6ae923e173536bf0ddb39552416a7e21767287db">
docs/users_guide/runtime_control.rst
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<a href="#c30f4ac98f08779ad1bd5a02a27802862c1e9521">
ghc/GHCi/UI.hs
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<a href="#0f814617086487f888918aa4c53eadb938e7a412">
ghc/GHCi/UI/Info.hs
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<a href="#57d22eb49f269b51f07e23c509834d85e25f691e">
ghc/GHCi/UI/Monad.hs
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<a href="#51d77a90635e9ec3ddfb3918005aecda9cc567c0">
ghc/ghc-bin.cabal.in
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<a href="#2eeb40f0acd6cb433ebe65e34262040b618908a7">
hadrian/hadrian.cabal
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<a href="#066676c9c25c533913dbd6a6948dd6ba25f97996">
hadrian/src/Base.hs
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hadrian/src/Rules/Documentation.hs
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<a href="#704958036ebddd9058fb1367e440b2ea1abb53e9">
hadrian/src/Settings.hs
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<a href="#133da3b7819e0eb293bc3aa9448417fcdf3461e5">
hadrian/src/Settings/Flavours/Quick.hs
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<a href="#15573cb40fce6bde985c520c7e7647ab4c13453e">
hadrian/stack.yaml
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includes/Rts.h
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<a href="#456263288343573de99d23371fb69e400889ac65">
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includes/rts/ForeignExports.h
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<a href="#c4f017fa9974a726de9e40cc73a72967c443cef4">
libraries/base/Data/Semigroup.hs
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<a href="#392e9dfd3417e267d708c5ab16536f2994d43745">
libraries/base/changelog.md
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<a href="#1f9e349c6faf0ce4022d1187385f4e265086172b">
libraries/deepseq
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libraries/ghc-compact/GHC/Compact.hs
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<a href="#ae718f022c910e7a1a4e159b50a9ad3a8f8afcfe">
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<a href="#044fe9284335a9bfd17546e06c2e5c40a680dd3d">
rts/Linker.c
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<a href="#687f0b17315e54a1692de64626391e572ca298e9">
rts/LinkerInternals.h
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<a href="#9ed11d0519762dae04656481b089dbb5b05acf98">
rts/RtsStartup.c
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<a href="#16c842a51a135c8ef2c7c7f94336544868348a3c">
rts/RtsSymbols.c
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<a href="#e137645f8a9be9fa32cc764e19cea2b492e33d9c">
rts/STM.c
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<h5>The diff was not included because it is too large.</h5>
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