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<h3>
John Ericson pushed to branch wip/D5082
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/610ec224a49e092c802a336570fd9613ea15ef3c">610ec224</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2019-03-15T14:17:54Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Update Trac ticket URLs to point to GitLab
This moves all URL references to Trac tickets to their corresponding
GitLab counterparts.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/97032ed9b2594c8939cab776ff871051d6dba30a">97032ed9</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2019-03-15T14:24:01Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Report better suggestion for GADT data constructor
This addresses issue #16427. An easy fix.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/83e09d3c2b2e84b85fa25e271eff2747fc783f09">83e09d3c</a></strong>
<div>
<span>by Peter Trommler</span>
<i>at 2019-03-15T14:30:08Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">PPC NCG: Use liveness information in CmmCall
We make liveness information for global registers
available on `JMP` and `BCTR`, which were the last instructions
missing. With complete liveness information we do not need to
reserve global registers in `freeReg` anymore. Moreover we
assign R9 and R10 to callee saves registers.
Cleanup by removing `Reg_Su`, which was unused, from `freeReg`
and removing unused register definitions.
The calculation of the number of floating point registers is too
conservative. Just follow X86 and specify the constants directly.
Overall on PowerPC this results in 0.3 % smaller code size in nofib
while runtime is slightly better in some tests.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/57201bebaeb15c5635ac5ea153b0141b55670199">57201beb</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2019-03-15T14:36:14Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add flavours link</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/4927117cd6166a97455d788dbf7433c95441b57a">4927117c</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2019-03-16T12:08:25Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Improve error recovery in the typechecker
Issue #16418 showed that we were carrying on too eagerly after a bogus
type signature was identified (a bad telescope in fact), leading to a
subsequent crash.
This led me in to a maze of twisty little passages in the typechecker's
error recovery, and I ended up doing some refactoring in TcRnMonad.
Some specfifics
* TcRnMonad.try_m is now called attemptM.
* I switched the order of the result pair in tryTc,
to make it consistent with other similar functions.
* The actual exception used in the Tc monad is irrelevant so,
to avoid polluting type signatures, I made tcTryM, a simple
wrapper around tryM, and used it.
The more important changes are in
* TcSimplify.captureTopConstraints, where we should have been calling
simplifyTop rather than reportUnsolved, so that levity defaulting
takes place properly.
* TcUnify.emitResidualTvConstraint, where we need to set the correct
status for a new implication constraint. (Previously we ended up
with an Insoluble constraint wrapped in an Unsolved implication,
which meant that insolubleWC gave the wrong answer.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/600a1ac3829c2b216d2cc23a1e8256841ffe6466">600a1ac3</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2019-03-16T12:08:25Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add location to the extra-constraints wildcard
The extra-constraints wildcard had lost its location
(issue #16431).
Happily this is easy to fix. Lots of error improvements.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/1c1b63d63efe8b0f789aa7d5b87cfac3edd213eb">1c1b63d6</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-16T23:13:36Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">compiler: Disable atomic renaming on Windows
As discussed in #16450, this feature regresses CI on Windows, causing
non-deterministic failures due to missing files.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/6764da436ae039645df2af1c1d53f7cd45a9638b">6764da43</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-16T23:16:56Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Explicitly set bindist tarball name
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/ad79ccd9c86ae2eccb625ab7000cf899f23ff840">ad79ccd9</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-16T23:17:46Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Generate documentation tarball
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/3f2291e47b8e00f1312c9be31484ceddd1289212">3f2291e4</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-16T23:17:46Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Generate source tarballs
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/cb61371e3260e07be724a04b72a935133f66b514">cb61371e</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-17T09:05:10Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">ghc-heap: Introduce closureSize
This function allows the user to compute the (non-transitive) size of a
heap object in words. The "closure" in the name is admittedly confusing
but we are stuck with this nomenclature at this point.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/c01d5af31c8feb634fc3dffc84e6e7ece61ba190">c01d5af3</a></strong>
<div>
<span>by Michael Sloan</span>
<i>at 2019-03-18T02:23:19Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Extract out use of UnboxedTuples from GHCi.Leak
See #13101 + #15454 for motivation. This change reduces the number of
modules that need to be compiled to object code when loading GHC into
GHCi.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/6113d0d4540af7853c71e9f42a41c3b0bab386fd">6113d0d4</a></strong>
<div>
<span>by Radosław Rowicki</span>
<i>at 2019-03-18T02:29:25Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Update bug tracker link to point to gitlab instead of deprecated trac</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/b8326897251ebdbb896da2b28ad27a48ee8f2582">b8326897</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-18T03:16:12Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Always build fedora27
This ends up being much easier to use than Debian 9 under NixOS.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/acf2129d49989071e296634711e3f4d9ebed6ee0">acf2129d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-18T03:17:36Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Implement head.hackage jobs
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/71648c35ad243396433d017da9ce18bea603d1ce">71648c35</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-20T03:04:18Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Implement support for i386/Windows bindists
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/d94ca74f2c083c86be1799bf1534db078ab611a6">d94ca74f</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2019-03-20T03:10:23Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">err: clean up error handler
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/398f2cbc6af6fcb6135ba2d56c154869bea071a0">398f2cbc</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-20T03:16:32Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Bump Cabal submodule to 3.0
Metric Increase:
haddock.Cabal
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/89a201e88a9313ecff4f5659c38e40136cfc0b76">89a201e8</a></strong>
<div>
<span>by Takenobu Tani</span>
<i>at 2019-03-20T03:22:36Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">users-guide: Update Wiki URLs to point to GitLab
The user's guide uses the `ghc-wiki` macro, and substitution rules
are complicated. So I manually edited `.rst` files without sed.
I changed `Commentary/Latedmd` only to a different page.
It is more appropriate as an example.
[ci skip]
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/98ff1a5696dd10233229c790eb9642a26e13a9a3">98ff1a56</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2019-03-20T03:28:42Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Replace nOfThem by replicate
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/6a47414f0cc6d538fbec7ca537ad36fbcc1a2480">6a47414f</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2019-03-20T03:28:42Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix typos
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/1e26e60dd21c235678447ee903afbf15228e40de">1e26e60d</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2019-03-20T03:28:42Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Simplify monadic code
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/c045bd7cfaef2f4b6753e5a19637a658dce9e58d">c045bd7c</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2019-03-20T03:28:42Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Remove deprecated reinitializeGlobals
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/6d19ad72f6a7283dfbfa6facb58063c0ff777af8">6d19ad72</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-20T03:34:49Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Bump docker images
To install lndir and un-break the source distribution job.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/c7a84a6067311c204f6fa459e5f59b0958863118">c7a84a60</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2019-03-20T03:34:50Z</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/db1362375cb960529cd068dd6cacd9ba0cf3977b">db136237</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-20T22:41:32Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">testsuite: Mark T16219 and cabal09 as broken on Windows
See #16386.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/7cd8e330a2c82fe048e501671b32cd2ec5b5c0d9">7cd8e330</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-20T22:41:32Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">testsuite: Fix expected output on Windows for various ghci tests
Broke as -Wimplicit-kind-vars no longer exists. Specifically ghci024,
ghci057 and T9293.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/23b639fd1b7c558383792c48bd35f457b01b2515">23b639fd</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-20T22:41:32Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">testsuite: Mark T5836 as broken on Windows
See #16387.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/a1bda08d6cd1fe1cb8d77c552e33f5d48936aa8c">a1bda08d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-20T22:41:32Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">testsuite: Mark T15904 as broken on Windows
It seems to look for some sort of manifest file. See #16388.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/b7f5d5526ac0989fcbe0cb1aff00aaee3e2690bb">b7f5d552</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-20T22:41:32Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">testsuite: Mark T16190 as broken on Windows
There seems to be some filepath funniness due to TH embedding going on
here. See #16389.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/a0c31f78647efc1f9aba6c7ac52f64237143b539">a0c31f78</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-20T22:41:32Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">testsuite/plugins: Add multi_cpu_race modifier on Windows
A few tests previously failed with various failure modes. For instance,
`plugin-recomp-change` fails with:
```
Wrong exit code for plugin-recomp-change()(expected 0 , actual 2 )
Stderr ( plugin-recomp-change ):
Simple Plugin Passes Queried
Got options:
Simple Plugin Pass Run
C://GitLabRunner//builds//8fc0e283//0//ghc//ghc//inplace//mingw//bin/ld.exe: cannot find -lHSplugin-recompilation-0.1-CPeObcGoBuvHdwBnpK9jQq
collect2.exe: error: ld returned 1 exit status
`gcc.exe' failed in phase `Linker'. (Exit code: 1)
make[2]: *** [Makefile:112: plugin-recomp-change] Error 1
*** unexpected failure for plugin-recomp-change(normal)
```
It's unclear whether the ghc-pkg concurrency issue mentioned in all.T is
the culprit but the set of tests that fail overlaps strongly with the
set of tests that lack the `multi_cpu_race` modifier. Let's see if
adding it fixes them.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/88a6e9a4e596d22d1dd8b983a15781183050f51a">88a6e9a4</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-20T22:41:32Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">testsuite: Mark T10672 as broken
This test, which is only run on Windows, seems to be reliably timing
out.
See #16390.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/f4d3aaaf318efa5a476bc35b16d0327e9d0a0b66">f4d3aaaf</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-20T22:41:32Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">testsuite/plugins: Increase compile timeout on Windows
I think the linker is routinely eating through the timeout,
leading to many spurious failures.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/ae382245ea65bf8824db7f4dbab5ade78e6ed9dd">ae382245</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-20T22:41:32Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts/RtsSymbols: Drop __mingw_vsnwprintf
As described in #16387, this is already defined by mingw and
consequently defining it in the RTS as well leads to multiple definition
errors from the RTS linker at runtime.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/f79f93e47e28f662478493f2b651153a09df404e">f79f93e4</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-20T22:41:32Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Don't mark cabal09 as broken
It doesn't fail reliably.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/d98cb7637a305e31de5e05a1feb9f6f2339f8cc4">d98cb763</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-20T22:41:32Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">testsuite: Don't mark T5836 as broken
I believe removing __mingw_vsnwprintf from RtsSymbols fixed #16387.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/8c1a27435e990287fa928a71f632007eea23b48a">8c1a2743</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-20T22:41:32Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Try again
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/3394a7cd27cec64a577ee0a9df887a431ccb3696">3394a7cd</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-20T22:41:32Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">testsuite: Display observed exit code on failure due to bad exit code
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/368187591a5454e47c4e08dae90d39d2af1fad40">36818759</a></strong>
<div>
<span>by Artem Pyanykh</span>
<i>at 2019-03-20T23:52:39Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Adjust section placement and relocation logic for Mach-O
1. Place each section on a separate page to ensure required
alignment (wastes lots ot space, needs to be improved).
2. Unwire relocation logic from macho sections (the most fiddly part
is adjusting internal relocations).
Other todos:
0. Add a test for section alignment.
1. Investigate 32bit relocations!
2. Fix memory leak in ZEROPAGE section allocation.
3. Fix creating redundant jump islands for GOT.
4. Investigate more compact section placement.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/78c61acf15c66a17df63da60226acff3a2dda585">78c61acf</a></strong>
<div>
<span>by Artem Pyanykh</span>
<i>at 2019-03-20T23:52:39Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Use segments for section layout
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/7bbfb789913b84660bc743aeffee06e18cbde2f0">7bbfb789</a></strong>
<div>
<span>by Artem Pyanykh</span>
<i>at 2019-03-20T23:52:39Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Address some todos and fixmes
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/3cdcc0b55de5f7a35dc12430f021a665b0477e95">3cdcc0b5</a></strong>
<div>
<span>by Artem Pyanykh</span>
<i>at 2019-03-20T23:52:39Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add a linker test re: section alignment
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/cb745c84a192c4a1f992649fbda584941f8ec3eb">cb745c84</a></strong>
<div>
<span>by Artem Pyanykh</span>
<i>at 2019-03-20T23:52:39Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add missing levels to SegmentProt enum
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/d950f11eff0a5dc0ad950fbd47e3ee32649d1d62">d950f11e</a></strong>
<div>
<span>by Artem Pyanykh</span>
<i>at 2019-03-20T23:52:39Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Directly test section alignment, fix internal reloc probing length
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/3fb10fcfc03d5590579743494450fc8b06b179ad">3fb10fcf</a></strong>
<div>
<span>by Artem Pyanykh</span>
<i>at 2019-03-20T23:52:39Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Gracefully handle error condition in Mach-O relocateSection
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/dc713c71540556ee9dcc90cfd8046c98af5d3d78">dc713c71</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-20T23:58:49Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">ci: Move validate-x86_64-linux-deb9 to full-build stage
The `build` stage is meant to be a minimal smoke test to weed out broken
commits. The `validate-x86_64-linux-deb9` build will generally catch a
subset of issues caught by `validate-x86_64-linux-deb9-debug` so only
the latter should be in `build`.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/505c5ab2b9d9d4ac721d1a6fea020e0886c02eff">505c5ab2</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-20T23:58:49Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">ci: Add some descriptions of the stages
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/646e3dc20ebe25baae898a6b22895ddd015fc975">646e3dc2</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2019-03-21T00:04:49Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add a bench flavour to Hadrian
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/8d18a873c5d7688c6e7d91efab6bb0d6f99393c6">8d18a873</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2019-03-21T00:10:57Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Reject nested predicates in impredicativity checking
When GHC attempts to unify a metavariable with a type containing
foralls, it will be rejected as an occurrence of impredicativity.
GHC was /not/ extending the same treatment to predicate types, such
as in the following (erroneous) example from #11514:
```haskell
foo :: forall a. (Show a => a -> a) -> ()
foo = undefined
```
This will attempt to instantiate `undefined` at
`(Show a => a -> a) -> ()`, which is impredicative. This patch
catches impredicativity arising from predicates in this fashion.
Since GHC is pickier about impredicative instantiations, some test
cases needed to be updated to be updated so as not to fall afoul of
the new validity check. (There were a surprising number of
impredicative uses of `undefined`!) Moreover, the `T14828` test case
now has slightly less informative types shown with `:print`. This is
due to a a much deeper issue with the GHCi debugger (see #14828).
Fixes #11514.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/7b213b8dc668be216cb2efd7140a2f0263a454e5">7b213b8d</a></strong>
<div>
<span>by Ömer Sinan Ağacan</span>
<i>at 2019-03-21T00:17:05Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Print test suite results ("unexpected failures" etc.) in sorted order
Fixes #16425
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/f199a8437ba70e65910220625e690157af679573">f199a843</a></strong>
<div>
<span>by Simon Jakobi</span>
<i>at 2019-03-21T00:23:15Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Check.hs: Fix a few typos
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/07d44ed144ef06de4b125389f318c1f514eee004">07d44ed1</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-21T00:29:20Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">base: Depend upon shlwapi on Windows
As noted in #16466, `System.Environment.getExecutablePath` depends upon
`PathFileExistsW` which is defined by `shlwapi`.
Fixes #16466.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/1382d09efadc900f7242c2e23482a9970eaf4f9b">1382d09e</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2019-03-21T00:35:28Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Remove unused XArrApp and XArrForm extension points
!301 removed the `HsArrApp` and `HsArrForm` constructors, which
renders the corresponding extension points `XArrApp` and `XArrForm`
useless. This patch finally rips them out.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/3423664b80ce3c8f5fa3104f3b0a1bcd0e539a02">3423664b</a></strong>
<div>
<span>by Peter Trommler</span>
<i>at 2019-03-21T00:41:35Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix specification of load_load_barrier [skip-ci]
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/84c77a675ccc4b6bbd0f271d7859266872eab777">84c77a67</a></strong>
<div>
<span>by Alexandre Esteves</span>
<i>at 2019-03-21T21:43:03Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix typo [skip ci]</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/7092b2de6fb8f23e03c0be7bd23bf394e087fc00">7092b2de</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2019-03-22T03:38:58Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Only run check-makefiles.py linter in testsuite dir
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/322239de9555ff753db08d1508ee52a484c89093">322239de</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2019-03-22T03:38:58Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Run linters on merge requests
It seems that it has failed to execute at all since it was implemented.
We now run the linters on merge requests.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/8f8d532c6c9ade79c5ba1a6e08b3e082db1a5fcd">8f8d532c</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-22T03:45:03Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Do full `perf` build when building Windows releases
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/2ef72d3f2b40f4a180501507797378952fc38bae">2ef72d3f</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-22T03:45:03Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Pass --target explicitly to configure on Windows
Otherwise configure fails in the 32-bit case with
```
This GHC (c:/GitLabRunner/builds/8fc0e283/0/ghc/ghc/toolchain/bin/ghc) does not generate code for the build platform
GHC target platform : x86_64-unknown-mingw32
Desired build platform : i386-unknown-mingw32
```
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/8b14f536b8ddbb83341464c5d07066ad8c3960d3">8b14f536</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-22T03:51:08Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Bump cabal submodule
Due to https://github.com/haskell/cabal/issues/5953.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/dbe4557f0cfb863b1e6267a0f6a6e6d2cf10430a">dbe4557f</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2019-03-22T14:02:32Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">CI: Allow failure in packaging step
This depends on the windows build which is still allowed to fail. If
that job fails then the packaging job will also fail.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/366f1c68c1b688baab61934eee62c5a7992db525">366f1c68</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-22T14:08:38Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab: Deploy documentation snapshot via GitLab Pages
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/d608d5434772c121759535d13c286a676abb565f">d608d543</a></strong>
<div>
<span>by Tamar Christina</span>
<i>at 2019-03-22T14:14:45Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Force LF line ending for md5sum [skip-ci]
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/cd07086ada34888c08585f4dc98a961618748ed0">cd07086a</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-22T14:34:51Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Fix linters
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/ab51bee40c82cd552bcf13e24b67d43f3b8d25f3">ab51bee4</a></strong>
<div>
<span>by Herbert Valerio Riedel</span>
<i>at 2019-03-22T14:34:51Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">base: Remove `Monad(fail)` method and reexport `MonadFail(fail)` instead
As per https://prime.haskell.org/wiki/Libraries/Proposals/MonadFail
Coauthored-by: Ben Gamari <ben@well-typed.com>
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/266b49ca3f3f8846eae29d984eb04339dbc0c2c5">266b49ca</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-22T22:33:20Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Clean up linter
I'm not sure why these steps were done but they seem counterproductive
and unnecessary.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/44b08ede3f4afb05a55c1acd5b644a38e0fb14f5">44b08ede</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-22T22:38:11Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Fix YAML syntax
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/971f4530004868b9a043252d6f25081388d99e0d">971f4530</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-22T22:49:34Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Compute merge base against remote tracking branch
Previously we would use the local branch with the name
`$CI_MERGE_REQUEST_TARGET_BRANCH_NAME` to compute the merge base when
linting. However, this branch isn't necessarily up-to-date. We should
rather use `origin/$CI_MERGE_REQUEST_TARGET_BRANCH_NAME`.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/8d01b57273e72a9a9d4a76a8f3f15f59441ed30a">8d01b572</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-23T16:37:56Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Explicitly fetch target branch
`git fetch`, which we used previously, doesn't update the remote
tracking branches.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/cd85f8a71bb56cff332560e1d571b3406789fb71">cd85f8a7</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-24T12:46:13Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Allow linters to fail for now
They are broken and I don't have time to fix them at the moment.</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/d763b2e7097a2dc14f4917d7e9f0cbd5c7085961">d763b2e7</a></strong>
<div>
<span>by Haskell-mouse</span>
<i>at 2019-03-25T18:02:22Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">User's Guide: extensions compatibility
Adds the mention that extensions "AllowAmbiguousTypes" and "RankNTypes"
are not always compatible with each other.
Specifies the conditions and causes of failing in resolving
of ambiguity.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/200d65ef41efda8ff2b524f7a15c14620d6a57b9">200d65ef</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2019-03-25T18:02:25Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Check hadrian/ghci.sh script output to determine pass/fail
ghci always exits with exit code 0 so you have to check the output
to see if the modules loaded succesfully.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/8e07368faf5090a5ac803f0e4fa3a5a2a4aba05c">8e07368f</a></strong>
<div>
<span>by Matthew Pickering</span>
<i>at 2019-03-25T18:02:27Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Refactor ./hadrian/ghci.sh for better error messages
By separating these two lines, if the first command fails then `ghci` is
not loaded. Before it would still load ghci but display lots of errors
about not being able to find modules.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/3769e3a829f4514f82ce7f7d218867f1d69d3d38">3769e3a8</a></strong>
<div>
<span>by Takenobu Tani</span>
<i>at 2019-03-25T18:02:29Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Update Wiki URLs to point to GitLab
This moves all URL references to Trac Wiki to their corresponding
GitLab counterparts.
This substitution is classified as follows:
1. Automated substitution using sed with Ben's mapping rule [1]
Old: ghc.haskell.org/trac/ghc/wiki/XxxYyy...
New: gitlab.haskell.org/ghc/ghc/wikis/xxx-yyy...
2. Manual substitution for URLs containing `#` index
Old: ghc.haskell.org/trac/ghc/wiki/XxxYyy...#Zzz
New: gitlab.haskell.org/ghc/ghc/wikis/xxx-yyy...#zzz
3. Manual substitution for strings starting with `Commentary`
Old: Commentary/XxxYyy...
New: commentary/xxx-yyy...
See also !539
[1]: https://gitlab.haskell.org/bgamari/gitlab-migration/blob/master/wiki-mapping.json
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/b9da28680aa7ac128ba31680becb4be6f9b21ed4">b9da2868</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2019-03-25T18:02:33Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Correct duplicate 4.12.0.0 entry in base's changelog
See #16490.
[ci skip]
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/ab41c1b429374e22f51c06128c173ef4f14be67d">ab41c1b4</a></strong>
<div>
<span>by Andrey Mokhov</span>
<i>at 2019-03-27T11:20:03Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Hadrian: Bump Shake to 0.17.6
The new release of Shake comes with these relevant features:
* use symlinks for --shared
* add --compact for a Bazel/Buck style output
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/646f2e79c5d6e79341693b1b9660da974102cec2">646f2e79</a></strong>
<div>
<span>by Andrey Mokhov</span>
<i>at 2019-03-27T11:20:03Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Hadrian: trace the execution of expensive Cabal calls
We use Cabal to parse, configure, register and copy packages, which are
expensive operations that are currently not visible to Shake's profiling
infrastructure. By using `traced` we tell Shake to add these IO actions
to the profiling report, helping us to identify performance bottlenecks.
We use short tracing keys, as recommended in Shake docs: the name of the
current target is already available in the rest of the profiling
information.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/fb12f53c2779f15ee24786e8c3beae3133506a01">fb12f53c</a></strong>
<div>
<span>by Alp Mestanogullari</span>
<i>at 2019-03-27T11:20:05Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Hadrian: introduce an easy way for users to build with -split-sections
Any user can now trivially build any number of Haskell packages with
`-split-sections` by using `splitSections`/`splitSectionsIf` on any
existing or new flavour:
-- build all packages but the ghc library with -split-sections
splitSections :: Flavour -> Flavour
-- build all packages that satisfy the given predicate
-- with --split-sections
splitSectionsIf :: (Package -> Bool) -> Flavour -> Flavour
See the new section in `doc/user-settings.md`.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/3dec527a840a8165c33579bca09740ca9cf1f4de">3dec527a</a></strong>
<div>
<span>by David Eichmann</span>
<i>at 2019-03-27T11:20:09Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Hadrian: don't use -zorigin on darwin.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/5730f86331df4aa9b3d7b5ab59b1ebeafceaeadb">5730f863</a></strong>
<div>
<span>by Ömer Sinan Ağacan</span>
<i>at 2019-03-27T11:20:10Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Minor refactoring in copy array primops:
- `emitCopySmallArray` now checks size before generating code and
doesn't generate any code when size is 0. `emitCopyArray` already does
this so this makes small/large array cases the same in argument
checking.
- In both `emitCopySmallArray` and `emitCopyArray` read the `dflags`
after checking the argument.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/4acdb769705de63c721555e70bef5c3dff87e3c5">4acdb769</a></strong>
<div>
<span>by Chaitanya Koparkar</span>
<i>at 2019-03-27T11:20:11Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix a few broken Trac links [skip ci]
This patch only attempts to fix links that don't automatically re-direct to the correct URL.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/97ad5cfb1c41d19cc56f7450c1e42d988dc9fd2d">97ad5cfb</a></strong>
<div>
<span>by Artem Pelenitsyn</span>
<i>at 2019-03-29T18:18:12Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add some tips to the Troubleshooting section of README
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/8a20bfc21da6a47087c8069f92691629eb47951d">8a20bfc2</a></strong>
<div>
<span>by Michael Peyton Jones</span>
<i>at 2019-03-29T18:18:14Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Visibility: handle multiple units with the same name
Fixes #16228. The included test case is adapted from the reproduction in
the issue, and fails without this patch.
------
We compute an initial visilibity mapping for units based on what is
present in the package databases. To seed this, we compute a set of all
the package configs to add visibilities for.
However, this set was keyed off the unit's *package name*. This is
correct, since we compare packages across databases by version. However,
we would only ever consider a single, most-preferable unit from the
database in which it was found.
The effect of this was that only one of the libraries in a Cabal package
would be added to this initial set. This would cause attempts to use
modules from the omitted libraries to fail, claiming that the package
was hidden (even though `ghc-pkg` would correctly show it as visible).
A solution is to do the selection of the most preferable packages
separately, and then be sure to consider exposing all units in the
same package in the same package db. We can do this by picking a
most-preferable unit for each package name, and then considering
exposing all units that are equi-preferable with that unit.
------
Why wasn't this bug apparent to all people trying to use sub-libraries
in Cabal? The answer is that Cabal explicitly passes `-package` and
`-package-id` flags for all the packages it wants to use, rather than
relying on the state of the package database. So this bug only really
affects people who are trying to use package databases produced by Cabal
outside of Cabal itself.
One particular example of this is the way that the
Nixpkgs Haskell infrastructure provides wrapped GHCs: typically these
are equipped with a package database containing all the needed
package dependencies, and the user is not expected to pass
`-package` flags explicitly.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/754b5455aa0983c7702546a6c64061c95733997a">754b5455</a></strong>
<div>
<span>by Artem Pelenitsyn</span>
<i>at 2019-03-29T18:18:20Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">docs: make nfib compute the Fibonacci sequence [skipci]</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/1a567133f291234f3921b5badaae8a2de6d19ce0">1a567133</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-29T18:18:20Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">ci: Check that changelogs don't contain "TBA"
This ensures that the release dates in the library changelogs are
properly set.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/6e15ca54c09331378f018abc315a4c6c68db9e1a">6e15ca54</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-29T18:18:22Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Bump transformers to 0.5.6.2
See #16199.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/6f7115dfd4fbb439a309a8381c4d02c450170cdc">6f7115df</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-03-30T11:42:38Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">ci: Ensure index.html is preserved in documentation tarball
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/33173a51c77d9960d5009576ad9b67b646dfda3c">33173a51</a></strong>
<div>
<span>by Alexandre</span>
<i>at 2019-04-01T07:32:28Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;"> Add support for bitreverse primop
This commit includes the necessary changes in code and
documentation to support a primop that reverses a word's
bits. It also includes a test.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/a3971b4e8cb2f07387fbc165d46cd861a914c193">a3971b4e</a></strong>
<div>
<span>by Alexandre</span>
<i>at 2019-04-01T07:32:28Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Bump ghc-prim's version where needed
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/061276ea5d265eb3c23a3698f0a10f6a764ff4b4">061276ea</a></strong>
<div>
<span>by Michael Sloan</span>
<i>at 2019-04-01T07:32:30Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Remove unnecessary uses of UnboxedTuples pragma (see #13101 / #15454)
Also removes a couple unnecessary MagicHash pragmas
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/e468c61333205cc89244acc01432c8493cb06d62">e468c613</a></strong>
<div>
<span>by David Eichmann</span>
<i>at 2019-04-01T07:32:34Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Support Shake's --lint-fsatrace feature.
Using this feature requires fsatrace (e.g. https://github.com/jacereda/fsatrace).
Simply use the `--lint-fsatrace` option when running hadrian.
Shake version >= 0.17.7 is required to support linting out of tree build dirs.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/1e9e4197f1a8b6b53483bd984d241b0f2922a5bf">1e9e4197</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-04-01T07:32:34Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab: Add merge request template for backports for 8.8
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/55650d147bce7cd005327ebd5807fe2851a4e2e1">55650d14</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-04-01T07:32:34Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab: Add some simply issue templates
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/27b99ed8ede3d54932a432402de7dc43d1445f8f">27b99ed8</a></strong>
<div>
<span>by Takenobu Tani</span>
<i>at 2019-04-01T07:32:36Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Clean up URLs to point to GitLab
This moves URL references to old Trac to their corresponding
GitLab counterparts.
This patch does not update the submodule library, such as
libraries/Cabal.
See also !539, !606, !618
[ci skip]
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/18d1555d6e8d8988bcf19a4411a9ff432898282e">18d1555d</a></strong>
<div>
<span>by Adam Sandberg Eriksson</span>
<i>at 2019-04-01T07:32:38Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">configure: document the use of the LD variable
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/10352efa453810b7b49be475cd2ebf3c2fc0cd61">10352efa</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-04-01T22:22:34Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab: Add feature request MR template
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/1e52054bab20f28c7447fe80dad5353e71cea774">1e52054b</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-04-01T23:16:21Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab: Move feature request template to issue_templates
Whoops.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/e5c21ca9dfcd7ff3b382f557a91c50c0a45e4330">e5c21ca9</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-04-01T23:16:25Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab: Mention ~"user facing" label
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/39282422afe58a0855c2fe5315163236c116c2f4">39282422</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2019-04-02T00:01:38Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Bump array submodule
This bumps `array` to version 0.5.4.0 so that we can distinguish
it with `MIN_VERSION_array` (as it introduces some changes to the
`Show` instance for `UArray`).
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/7cf5ba3dba88356571197b470556e888581212d7">7cf5ba3d</a></strong>
<div>
<span>by Michal Terepeta</span>
<i>at 2019-04-02T00:07:49Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Improve performance of newSmallArray#
This:
- Hoists part of the condition outside of the initialization loop in
`stg_newSmallArrayzh`.
- Annotates one of the unlikely branches as unlikely, also in
`stg_newSmallArrayzh`.
- Adds a couple of annotations to `allocateMightFail` indicating which
branches are likely to be taken.
Together this gives about 5% improvement.
Signed-off-by: Michal Terepeta <michal.terepeta@gmail.com>
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/dd9c82ef38e87ede01d81907c5037845f2944435">dd9c82ef</a></strong>
<div>
<span>by David Eichmann</span>
<i>at 2019-04-02T00:13:55Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Hadrian: correct deps for ghc builder.
Previously, when needing ghc as a builder, the ghcDeps (Files
the GHC binary depends on) for the current stage were needed.
This is incorrect as the previous stage's ghc is used for building.
This commit fixes the issue, needing the previous stage's ghcDeps.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/345306d3fa5e84de8b6783c0bc70cf3ba5ecd2b7">345306d3</a></strong>
<div>
<span>by Alexandre Baldé</span>
<i>at 2019-04-02T16:34:30Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix formatting issue in ghc-prim's changelog [skip ci]
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/f54b5124bd449dd0d818725a5797e7aa9d9e9eba">f54b5124</a></strong>
<div>
<span>by David Eichmann</span>
<i>at 2019-04-02T16:40:39Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Hadrian: traceAllow deep dependencies when compilling haskell object files.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/d132b30ad7ee73606c745ad7e0b81383eea69d0a">d132b30a</a></strong>
<div>
<span>by David Eichmann</span>
<i>at 2019-04-02T16:40:39Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Hadrian: lint ignore autom4te and ghc-pkg cache files.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/bf73419518ca550e85188616f860961c7e2a336b">bf734195</a></strong>
<div>
<span>by Simon Marlow</span>
<i>at 2019-04-02T16:46:46Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add myself to libraries/ghci</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/5a75ccd0993ff2fdf827824e28ae7db4ad9c25ad">5a75ccd0</a></strong>
<div>
<span>by klebinger.andreas@gmx.at</span>
<i>at 2019-04-03T04:34:57Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix faulty substitutions in StgCse (#11532).
`substBndr` should rename bindings which shadow existing ids.
However while it was renaming the bindings it was not adding proper substitutions
for renamed bindings.
Instead of adding a substitution of the form `old -> new` for renamed
bindings it mistakenly added `old -> old` if no replacement had taken
place while adding none if `old` had been renamed.
As a byproduct this should improve performance, as we no longer add
useless substitutions for unshadowed bindings.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/2ec749b5994aef0eff9185ad2985bfa847cec021">2ec749b5</a></strong>
<div>
<span>by Nathan Collins</span>
<i>at 2019-04-03T04:41:05Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">users-guide: Fix typo
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/ea192a0932c6a95d7854e86f743c11249af23ded">ea192a09</a></strong>
<div>
<span>by Andrew Martin</span>
<i>at 2019-04-03T04:41:05Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">base: Add documentation that liftA2 used to not be a typeclass method
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/733f1b52448e5ddd5f3f0d218050f5f22a707b5e">733f1b52</a></strong>
<div>
<span>by Frank Steffahn</span>
<i>at 2019-04-03T04:41:05Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">users-guide: Typo in Users Guide, Glasgow Exts
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/3364def0a28d8b888f558cb9fdab379685636854">3364def0</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-04-03T04:41:05Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">integer-gmp: Write friendlier documentation for Integer
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/dd3a3d08e99114b791f5d1ef9218d922cdfd90e0">dd3a3d08</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-04-03T04:41:05Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">integer-simple: Add documentation for Integer type
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/722fdddf31932236d4246821cb79987fa9422a7e">722fdddf</a></strong>
<div>
<span>by Chris Martin</span>
<i>at 2019-04-03T04:41:05Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Correct two misspellings of "separately"
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/bf6dbe3d1046573cb71fd534a326a9a0e6f1b220">bf6dbe3d</a></strong>
<div>
<span>by Chris Martin</span>
<i>at 2019-04-03T04:41:05Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Inline the definition of 'ap' in the Monad laws
The law as it is currently written is meaningless, because nowhere have
we defined the implementation of 'ap'. The reader of the Control.Monad
documentation is provided with only a type signature,
> ap :: Monad m => m (a -> b) -> m a -> m b
an informal description,
> In many situations, the liftM operations can be replaced by uses of
> ap, which promotes function application.
and a relationship between 'ap' and the 'liftM' functions
> return f `ap` x1 `ap` ... `ap` xn
> is equivalent to
> liftMn f x1 x2 ... xn
Without knowing how 'ap' is defined, a law involving 'ap' cannot
provide any guidance for how to write a lawful Monad instance, nor can
we conclude anything from the law.
I suspect that a reader equipped with the understanding that 'ap' was
defined prior to the invention of the Applicative class could deduce
that 'ap' must be defined in terms of (>>=), but nowhere as far as I can
tell have we written this down explicitly for readers without the
benefit of historical context.
If the law is meant to express a relationship among (<*>), (>>=), and
'return', it seems that it is better off making this statement directly,
sidestepping 'ap' altogether.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/7b090b53fea065d2cfd967ea919426af9ba8d737">7b090b53</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-04-03T07:57:40Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">configure: Always use AC_LINK_ELSEIF when testing against assembler
This fixes #16440, where the build system incorrectly concluded that the
`.subsections_via_symbols` assembler directive was supported on a Linux
system. This was caused by the fact that gcc was invoked with `-flto`;
when so-configured gcc does not call the assembler but rather simply
serialises its AST for compilation during the final link.
This is described in Note [autoconf assembler checks and -flto].
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/4626cf213fe7affe5f8c2d94dbf03e727c816694">4626cf21</a></strong>
<div>
<span>by Sebastian Graf</span>
<i>at 2019-04-03T08:03:47Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix Uncovered set of literal patterns
Issues #16289 and #15713 are proof that the pattern match checker did
an unsound job of estimating the value set abstraction corresponding to
the uncovered set.
The reason is that the fix from #11303 introducing `NLit` was
incomplete: The `LitCon` case desugared to `Var` rather than `LitVar`,
which would have done the necessary case splitting analogous to the
`ConVar` case.
This patch rectifies that by introducing the fresh unification variable
in `LitCon` in value abstraction position rather than pattern postition,
recording a constraint equating it to the constructor expression rather
than the literal. Fixes #16289 and #15713.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/6f13e7b13de361f0813a8752a7279ec3c1383755">6f13e7b1</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-04-03T12:12:26Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Build hyperlinked sources for releases
Fixes #16445.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/895394c26156993a9405039fe53fde3a6b1414b7">895394c2</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2019-04-03T12:15:06Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab: Fix label names in issue templates
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/75abaaead796415cf2b5da610f4b3ee75b9d7759">75abaaea</a></strong>
<div>
<span>by Yuriy Syrovetskiy</span>
<i>at 2019-04-04T08:23:19Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Replace git.haskell.org with gitlab.haskell.org (#16196)
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/25c02ea172ef1dad2d12d8baff6ce57a68bf4127">25c02ea1</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2019-04-04T08:29:29Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix #16518 with some more kind-splitting smarts
This patch corrects two simple oversights that led to #16518:
1. `HsUtils.typeToLHsType` was taking visibility into account in the
`TyConApp` case, but not the `AppTy` case. I've factored out the
visibility-related logic into its own `go_app` function and now
invoke `go_app` from both the `TyConApp` and `AppTy` cases.
2. `Type.fun_kind_arg_flags` did not properly split kinds with
nested `forall`s, such as
`(forall k. k -> Type) -> (forall k. k -> Type)`. This was simply
because `fun_kind_arg_flags`'s `FunTy` case always bailed out and
assumed all subsequent arguments were `Required`, which clearly
isn't the case for nested `forall`s. I tweaked the `FunTy` case
to recur on the result kind.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/51fd357119b357c52e990ccce9059c423cc49406">51fd3571</a></strong>
<div>
<span>by Ryan Scott</span>
<i>at 2019-04-04T08:35:39Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Use funPrec, not topPrec, to parenthesize GADT argument types
A simple oversight. Fixes #16527.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/b407693036a7bf133fdc243a94bd93be8c8d80f9">b4076930</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2019-04-04T17:02:27Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">settings.in: Reformat
We're about to switch to generating it in Hadrian/Make. This reformat
makes it easier to programmingmatically generate and end up with the
exact same thing, which is good for diffing to ensure no regressions.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/5e5e3ea77efd1e1f303af3ff90a48afa10ce06db">5e5e3ea7</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2019-04-04T17:02:27Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Generate settings by make/hadrian instead of configure
This allows it to eventually become stage-specific
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/855ce3d2169e409c8023fbfdbbf9516c3dc30aed">855ce3d2</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2019-04-04T17:02:27Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Remove settings.in
It is no longer needed
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/feafe679f4f217ccb9341467023120f4675d6398">feafe679</a></strong>
<div>
<span>by Joachim Breitner</span>
<i>at 2019-04-04T22:35:16Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Make tablesNextToCode a proper dynamic flag (#15548)
Summary:
There is no more use of the TABLES_NEXT_TO_CODE CPP macro in
`compiler/`. The default value of `tablesNextToCode` is calculated as
before, but now users of the GHCI API can modify this flag.
Reviewers:
Subscribers: TerrorJack, rwbarton, carter
GHC Trac Issues: #15548
Differential Revision: https://phabricator.haskell.org/D5082
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/ce8bf6b948d8b6d4f06a760ce15f20ef17ffd23e">ce8bf6b9</a></strong>
<div>
<span>by John Ericson</span>
<i>at 2019-04-04T22:36:24Z</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Remove cGhcEnableTablesNextToCode
Get "Tables next to code" from the settings file instead.
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