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<h3>
Simon Jakobi pushed to branch wip/sjakobi/deprecate-option-v2
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/7a773f169cfe072c7b29924c53075e4dfa4e2adb">7a773f16</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-06-13T15:10:55-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Eliminate redundant push of CI metrics
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a31218f7737a65b6333ec7905e88dc094703f025">a31218f7</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2020-06-13T15:58:37-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Use HsForAllTelescope to avoid inferred, visible foralls
Currently, `HsForAllTy` permits the combination of `ForallVis` and
`Inferred`, but you can't actually typecheck code that uses it
(e.g., `forall {a} ->`). This patch refactors `HsForAllTy` to use a
new `HsForAllTelescope` data type that makes a type-level distinction
between visible and invisible `forall`s such that visible `forall`s
do not track `Specificity`. That part of the patch is actually quite
small; the rest is simply changing consumers of `HsType` to
accommodate this new type.
Fixes #18235. Bumps the `haddock` submodule.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/c0e6dee99242eff08420176a36d77b715972f1f2">c0e6dee9</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2020-06-14T09:07:44-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">winio: Add Atomic Exchange PrimOp and implement Atomic Ptr exchanges.
The initial version was rewritten by Tamar Christina.
It was rewritten in large parts by Andreas Klebinger.
Co-authored-by: Andreas Klebinger <klebinger.andreas@gmx.at>
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9a7462fb6b8bdd6326a607bbd7b9453eb588193b">9a7462fb</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-06-14T15:35:23-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">codeGen: Don't discard live case binders in unsafeEqualityProof logic
Previously CoreToStg would unconditionally discard cases of the form:
case unsafeEqualityProof of wild { _ -> rhs }
and rather replace the whole thing with `rhs`. However, in some cases
(see #18227) the case binder is still live, resulting in unbound
occurrences in `rhs`. Fix this by only discarding the case if the case
binder is dead.
Fixes #18227.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e4137c486a3df66b49395beea7efc6e200cc9bac">e4137c48</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-06-14T15:35:23-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">testsuite: Add tests for #18227
T18227A is the original issue which gave rise to the ticket and depends
upon bytestring. T18227B is a minimized reproducer.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8bab9ff1e09c1566a4105146bd636634a24928b9">8bab9ff1</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-06-14T15:35:59-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">hadrian: Fix rts include and library paths
Fixes two bugs:
* (?) and (<>) associated in a surprising way
* We neglected to include libdw paths in the rts configure flags
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/bd761185561747fe0b3adc22602f75d7b50cd248">bd761185</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-06-14T15:35:59-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">hadrian: Drop redundant GHC arguments
Cabal should already be passing this arguments to GHC.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/01f7052cc182c0ced85522dc775ebc490bf094ce">01f7052c</a></strong>
<div>
<span>by Peter Trommler</span>
<i>at 2020-06-14T15:36:38-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">FFI: Fix pass small ints in foreign call wrappers
The Haskell calling convention requires integer parameters smaller
than wordsize to be promoted to wordsize (where the upper bits are
don't care). To access such small integer parameter read a word from
the parameter array and then cast that word to the small integer
target type.
Fixes #15933
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/502647f7583be626319482adf4ea3d905db0006d">502647f7</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2020-06-14T15:37:14-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix "ndecreasingIndentation" in manual (#18116)
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9a9cc0897b676ffd6612562a46600ea98c53a58d">9a9cc089</a></strong>
<div>
<span>by Simon Jakobi</span>
<i>at 2020-06-15T13:10:00-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Use foldl' in unionManyUniqDSets
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/761dcb84cd4c50c6fbb361eb26fb429af87392a3">761dcb84</a></strong>
<div>
<span>by Moritz Angermann</span>
<i>at 2020-06-15T13:10:36-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Load .lo as well.
Some archives contain so called linker objects, with the affectionate
.lo suffic. For example the musl libc.a will come in that form. We
still want to load those objects, hence we should not discard them and
look for .lo as well. Ultimately we might want to fix this proerly by
looking at the file magic.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cf01477f03da13caaf78caacc5b001cb46a86685">cf01477f</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2020-06-15T13:11:20-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">User's Guide: KnownNat evidence is Natural
This bit of documentation got outdated after commit
1fcede43d2b30f33b7505e25eb6b1f321be0407f
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d0dcbfe646e52d0a1ef6d6e59a059323485775eb">d0dcbfe6</a></strong>
<div>
<span>by Jan Hrček</span>
<i>at 2020-06-16T20:36:38+02:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix typos and formatting in user guide
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/56a9e95fd6c2f213d676c9a2bd0a6cf93c531dbb">56a9e95f</a></strong>
<div>
<span>by Jan Hrček</span>
<i>at 2020-06-16T20:36:38+02:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Resolve TODO
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/3e884d14102948ad49d75611da247beff25911a4">3e884d14</a></strong>
<div>
<span>by Jan Hrček</span>
<i>at 2020-06-16T20:36:38+02:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Rename TcHoleErrors to GHC.Tc.Errors.Hole
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/d23fc67847a27222ad8a0c193e6a10b5a4c0cf48">d23fc678</a></strong>
<div>
<span>by Stefan Schulze Frielinghaus</span>
<i>at 2020-06-17T15:31:09-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">hadrian: Build with threaded runtime if available
See #16873.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0639dc10e214280a90dd6b75ce86cf43d1eb2286">0639dc10</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2020-06-17T15:31:53-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">T16190: only measure bytes_allocated
Just adding `{-# LANGUAGE BangPatterns #-}` makes the two other metrics
fluctuate by 13%.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/4cab68974dba3e674016514c939946ce60e58273">4cab6897</a></strong>
<div>
<span>by Adam Sandberg Ericsson</span>
<i>at 2020-06-17T15:32:44-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">docs: fix formatting in users guide
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/eb8115a8c4cbc842b66798480fefc7ab64d31931">eb8115a8</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2020-06-17T15:33:23-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Move CLabel assertions into smart constructors (#17957)
It avoids using DynFlags in the Outputable instance of Clabel to check
assertions at pretty-printing time.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/04ee711bdd060290683f4a18ed62e65a8a0812ff">04ee711b</a></strong>
<div>
<span>by Simon Jakobi</span>
<i>at 2020-06-17T23:58:18+02:00</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 PR for deepseq: https://github.com/haskell/deepseq/pull/55
</pre>
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<a href="#157f7634c25bc6366cb7c9c9edb48e819dce38db">
.gitlab/ci.sh
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aclocal.m4
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compiler/GHC/Cmm/MachOp.hs
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