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<h3>
Marge Bot pushed to branch wip/T497
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/5eb9445444c4099fc9ee0803ba45db390900a80f">5eb94454</a></strong>
<div>
<span>by Oleg Grenrus</span>
<i>at 2019-05-10T20:26:28Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add Generic tuple instances up to 15-tuple
Why 15? Because we have Eq instances up to 15.
Metric Increase:
T9630
haddock.base
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/c7913f71bc8ed8910c829a84b78d2f56b05f0473">c7913f71</a></strong>
<div>
<span>by Roland Senn</span>
<i>at 2019-05-10T20:32:38Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix bugs and documentation for #13456
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/bfcd986dc424f506e100f9a29bb62c9ff22e9702">bfcd986d</a></strong>
<div>
<span>by David Eichmann</span>
<i>at 2019-05-10T20:38:57Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Hadrian: programs need registered ghc-pkg libraries
In Hadrian, building programs (e.g. `ghc` or `haddock`) requires libraries located in the ghc-pkg package database i.e.
_build/stage1/lib/x86_64-linux-ghc-8.9.0.20190430/libHSdeepseq-1.4.4.0-ghc8.9.0.20190430.so
Add the corresponding `need`s for these library files and the subsequent rules.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/10f579ad57cb5a11f67694df9ad4823656d91e7b">10f579ad</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-05-10T20:45:05Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Disable cleanup job on Windows
As discussed in the Note, we now have a cron job to handle this and the
cleanup job itself is quite fragile.
[skip ci]
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/6f07f828e4f7a445fabd82dcb3fbf6edb2641369">6f07f828</a></strong>
<div>
<span>by Kevin Buhr</span>
<i>at 2019-05-10T20:51:11Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add regression test case for old issue #493
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/4e25bf46fd722178d3a5ca65ccf2f13710f56a91">4e25bf46</a></strong>
<div>
<span>by Giles Anderson</span>
<i>at 2019-05-13T23:01:52Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Change GHC.hs to Packages.hs in Hadrian user-settings.md
... "all packages that are currently built as part of the GHC are
defined in src/Packages.hs"
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/357be128fc1b545c182a9c6167437616636a300b">357be128</a></strong>
<div>
<span>by Kevin Buhr</span>
<i>at 2019-05-14T20:41:19Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add regression test for old parser issue #504
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/015a21b8990a7fcf0d9d31a951af3ae8b06076c4">015a21b8</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2019-05-14T20:41:19Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">hadrian: Make settings stage specific
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/f9e4ea401121572d799b9db56f24aa1abdf5edf8">f9e4ea40</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2019-05-14T20:41:19Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Dont refer to `cLeadingUnderscore` in test
Can't use this config entry because it's about to go away
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/e529c65eacf595006dd5358491d28c202d673732">e529c65e</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2019-05-14T20:41:19Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Remove all target-specific portions of Config.hs
1. If GHC is to be multi-target, these cannot be baked in at compile
time.
2. Compile-time flags have a higher maintenance than run-time flags.
3. The old way makes build system implementation (various bootstrapping
details) with the thing being built. E.g. GHC doesn't need to care
about which integer library *will* be used---this is purely a crutch
so the build system doesn't need to pass flags later when using that
library.
4. Experience with cross compilation in Nixpkgs has shown things work
nicer when compiler's can *optionally* delegate the bootstrapping the
package manager. The package manager knows the entire end-goal build
plan, and thus can make top-down decisions on bootstrapping. GHC can
just worry about GHC, not even core library like base and ghc-prim!
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/5cf8032e2fd2a2f35b8de9016c6e38e92c524394">5cf8032e</a></strong>
<div>
<span>by Oleg Grenrus</span>
<i>at 2019-05-14T20:41:19Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Update terminal title while running test-suite
Useful progress indicator even when `make test VERBOSE=1`,
and when you do something else, but have terminal title visible.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/c72c369bcd56c74b745d90ee8f6acd12b430c65c">c72c369b</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2019-05-14T20:41:19Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add a minimized regression test for #12928
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/a5fdd185188fcda595fd712f90864ec7c20cdace">a5fdd185</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2019-05-14T20:41:19Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Guard CUSKs behind a language pragma
GHC Proposal #36 describes a transition plan away from CUSKs and to
top-level kind signatures:
1. Introduce a new extension, -XCUSKs, on by default, that detects CUSKs
as they currently exist.
2. We turn off the -XCUSKs extension in a few releases and remove it
sometime thereafter.
This patch implements phase 1 of this plan, introducing a new language
extension to control whether CUSKs are enabled. When top-level kind
signatures are implemented, we can transition to phase 2.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/684dc290563769d456b6f1c772673d64307ab072">684dc290</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2019-05-14T20:41:19Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Restore the --coerce option in 'happy' configuration
happy-1.19.10 has been released with a fix for --coerce in the presence
of higher rank types. This should result in about 10% performance
improvement in the parser.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/a416ae26a2e45de3d9a76e94fc22aaa53e9e5b12">a416ae26</a></strong>
<div>
<span>by Alp Mestanogullari</span>
<i>at 2019-05-14T20:41:20Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Hadrian: 'need' source files for various docs in Rules.Documentation
Previously, changing one of the .rst files from the user guide would not cause
the user guide to be rebuilt. This patch take a first stab at declaring the
documentation source files that our documentation rules depend on, focusing
on the .rst files only for now.
We eventually might want to rebuild docs when we, say, change the haddock style
file, but this level of tracking isn't really necessary for now.
This fixes #16645.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/7105fb66a7bacf822f7f23028136f89ff5737d0e">7105fb66</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-05-16T16:47:59Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts: Explicit state that CONSTR tag field is zero-based
This was a bit unclear as we use both one-based and zero-based
tags in GHC.
[skip ci]</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/5bb80cf2c5601fc57231946c10aee76398b907dd">5bb80cf2</a></strong>
<div>
<span>by David Eichmann</span>
<i>at 2019-05-20T14:41:55Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Improve test runner logging when calculating performance metric baseline #16662
We attempt to get 75 commit hashes via `git log`, but this only gave 10
hashes in a CI run (see #16662). Better logging may help solve this
error if it occurs again in the future.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/b46efa2bbf86cf0673d0d6dfd5c40b2b0db5f9ff">b46efa2b</a></strong>
<div>
<span>by David Eichmann</span>
<i>at 2019-05-20T18:45:56Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Recalculate Performance Test Baseline T9630 #16680
Metric Decrease:
T9630
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/54095bbd3a5481e906b05c80ea68841165c7a2b3">54095bbd</a></strong>
<div>
<span>by Takenobu Tani</span>
<i>at 2019-05-21T20:54:00Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">users-guide: Fix directive errors on 8.10
The following sections are not displayed due to a directive error:
* -Wunused-record-wildcards
* -Wredundant-record-wildcards
I changed the location of the `since` directive.
[skip ci]
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/8fc654c3a00ab0cd842c3e8316f832170ea561d6">8fc654c3</a></strong>
<div>
<span>by David Eichmann</span>
<i>at 2019-05-21T20:57:37Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Include CPP preprocessor dependencies in -M output
Issue #16521
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/0af519ac583c3544b1c4b1315b38ba0174d3ccb1">0af519ac</a></strong>
<div>
<span>by David Eichmann</span>
<i>at 2019-05-21T21:01:16Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Refactor Libffi and RTS rules
This removes a hack that copies libffi files to the rts
build directory. This was done in a libffi rule, but now
an rts rule correctly needs and copies the relevant
files from the libffi build dir to the rts build dir.
Issues: #16272 #16304
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/9342b1fabd09e8bbebb982b07f129da266f7c586">9342b1fa</a></strong>
<div>
<span>by Kirill Elagin</span>
<i>at 2019-05-21T21:04:54Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">users-guide: Fix -rtsopts default</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/d0142f21692c4b4514ea68e489c943ac26037d8f">d0142f21</a></strong>
<div>
<span>by Javran Cheng</span>
<i>at 2019-05-21T21:08:29Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix doc for Data.Function.fix.
Doc-only change.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/ddd905b4eada5a9a33977a435393cf7826a4d6a5">ddd905b4</a></strong>
<div>
<span>by Shayne Fletcher</span>
<i>at 2019-05-21T21:12:07Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Update resolver for for happy 1.19.10
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/e32c30caf48517df8ddca6a79a39becfe5622c39">e32c30ca</a></strong>
<div>
<span>by Alp Mestanogullari</span>
<i>at 2019-05-21T21:15:45Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">distrib/configure.ac.in: remove mention to 'settings', since settings.in is gone
Otherwise, when `./configure`ing a GHC bindist, produced by either Make or
Hadrian, we would try to generate the `settings` file from the `settings.in`
template that we used to have around but which has been gone since d37d91e9.
That commit generates the settings file using the build systems instead, but
forgot to remove this mention to the `settings` file.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/4a6c8436f974cafc36a6e0462878614bdc0899c0">4a6c8436</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2019-05-21T21:19:22Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix #16666 by parenthesizing contexts in Convert
Most places where we convert contexts in `Convert` are actually in
positions that are to the left of some `=>`, such as in superclasses
and instance contexts. Accordingly, these contexts need to be
parenthesized at `funPrec`. To accomplish this, this patch changes
`cvtContext` to require a precedence argument for the purposes of
calling `parenthesizeHsContext` and adjusts all `cvtContext` call
sites accordingly.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/c32f64e5a9bcdb17d69bcabf0f0db0203eb6b7d9">c32f64e5</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-05-21T21:23:01Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Allow Windows Hadrian build to fail
Due to #16574.</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/412a1f39ecc26fb8bce997bfe71e87b7284a1493">412a1f39</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-05-21T21:23:01Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Update .gitlab-ci.yml</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/0dc7985663efa1739aafb480759e2e2e7fca2a36">0dc79856</a></strong>
<div>
<span>by Julian Leviston</span>
<i>at 2019-05-22T00:55:44Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Allow for multiple linker instances. Fixes Haskell portion of #3372.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/21272670581608b96a85cfb942af81ada3cfd450">21272670</a></strong>
<div>
<span>by Michael Sloan</span>
<i>at 2019-05-22T20:37:57Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Have GHCi use object code for UnboxedTuples modules #15454
The idea is to automatically enable -fobject-code for modules that use
UnboxedTuples, along with all the modules they depend on. When looking
into how to solve this, I was pleased to find that there was already
highly similar logic for enabling code generation when -fno-code is
specified but TemplateHaskell is used.
The state before this patch was that if you used unboxed tuples then you
had to enable `-fobject-code` globally rather than on a per module
basis.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/ddae344e80eee3044f773061126937a69d16c957">ddae344e</a></strong>
<div>
<span>by Michael Sloan</span>
<i>at 2019-05-22T20:41:31Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Use datatype for unboxed returns when loading ghc into ghci
See #13101 and #15454
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/78c3f3305e173c7667ffb47b97ff0ecacc279fe5">78c3f330</a></strong>
<div>
<span>by Kevin Buhr</span>
<i>at 2019-05-22T20:45:08Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add regression test for old Word32 arithmetic issue (#497)
</pre>
</li>
</ul>
<h4>30 changed files:</h4>
<ul>
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<a href="#587d266bb27a4dc3022bbed44dfa19849df3044c">
.gitlab-ci.yml
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<a href="#9ab3868b23ed5d5a6e12ef902049902556fa4009">
aclocal.m4
</a>
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<li class="file-stats">
<a href="#2da47fed955dc80b79c67ba640b94aeecf9d5524">
compiler/basicTypes/UniqSupply.hs
</a>
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<a href="#db6936871693fa68c3fdcbd692eb7dcffc3a9372">
compiler/cmm/CLabel.hs
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<a href="#f50439b73583d5fc97ab8917b6fc66f6188a1e62">
compiler/coreSyn/CorePrep.hs
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<a href="#cf5b233b6ec5c0a6951d1018fee507d2d2d71391">
compiler/deSugar/DsForeign.hs
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compiler/ghc.cabal.in
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compiler/ghc.mk
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compiler/ghci/Debugger.hs
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compiler/ghci/Linker.hs
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compiler/ghci/LinkerTypes.hs
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compiler/hsSyn/Convert.hs
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compiler/hsSyn/HsDecls.hs
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compiler/llvmGen/LlvmCodeGen/Base.hs
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compiler/main/CodeOutput.hs
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compiler/main/DriverMkDepend.hs
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compiler/main/DriverPipeline.hs
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compiler/main/DynFlags.hs
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compiler/main/GhcMake.hs
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compiler/main/HscMain.hs
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compiler/main/HscTypes.hs
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compiler/main/InteractiveEval.hs
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compiler/main/SysTools.hs
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compiler/nativeGen/AsmCodeGen.hs
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compiler/nativeGen/PIC.hs
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compiler/nativeGen/RegAlloc/Linear/State.hs
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<li class="file-stats">
<a href="#a55612b2faf1041b010514ceb222ddf75c15a326">
compiler/rename/RnSource.hs
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<li class="file-stats">
<a href="#bdfa0cc139f61d1236abc1598c5d684b43c357f9">
compiler/typecheck/TcTyClsDecls.hs
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<a href="#1e2eab751970e05b4edec9b2fe1a0549ae3f411f">
distrib/configure.ac.in
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<li class="file-stats">
<a href="#d6904e295957d55c64f4949aa3b54695dd57dd76">
docs/users_guide/8.10.1-notes.rst
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</ul>
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