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<h3>
Ben Gamari pushed to branch wip/T18854
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/b5b3e34ec39fc89a0bcd0b60cf9a4962c89ba72f">b5b3e34e</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2020-10-19T18:16:20-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Implement -Woperator-whitespace (#18834)
This patch implements two related warnings:
-Woperator-whitespace-ext-conflict
warns on uses of infix operators that would be parsed
differently were a particular GHC extension enabled
-Woperator-whitespace
warns on prefix, suffix, and tight infix uses of infix
operators
Updates submodules: haddock, containers.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/9648d680b4b07d48cf8741e0847abf07b95c7c1d">9648d680</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2020-10-19T18:16:58-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Remove pdocPrec
pdocPrec was only used in GHC.Cmm.DebugBlock.pprUnwindExpr, so remove
it. OutputableP becomes a one-function class which might be better for
performance.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ee5dcdf95a7c408e9c339aacebf89a007a735f8f">ee5dcdf9</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-10-20T00:47:54-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">testsuite: Add test for #18346
This was fixed by 4291bddaea3148908c55f235ee8978e1d9aa6f20.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/6c7a5c0ca07085f31a3e2f8286bb57a0f35961cb">6c7a5c0c</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2020-10-20T00:48:29-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Minor comments, update linear types docs
- Update comments: placeHolderTypeTc no longer exists
"another level check problem" was a temporary comment from linear types
- Use Mult type synonym (reported in #18676)
- Mention multiplicity-polymorphic fields in linear types docs
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/58a1ca3886b00630937d7f5073b2d7961f8e80ca">58a1ca38</a></strong>
<div>
<span>by nineonine</span>
<i>at 2020-10-20T00:49:07-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Compile modules with `-fobject-code` enabled to byte-code when loaded with `*` prefix in ghci (#8042)
The documentation states that when using :add and :load, the `*` prefix forces a module
to be loaded as byte-code. However, this seems to be ignored when -fobject-code has been
enabled. In that case, the compiled code is always used, regardless of whether the *-form
is used.
The idea is to consult the Targets in HscEnv and check the 'targetAllowObjCode' flag. If
the flag for given module is set, then patch up DynFlags and select compilation backend
accordingly.
This would require a linear scan of course, but that shouldn't be too costly.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/59b08a5d192e102f66a6d9260cc8466d7428cffe">59b08a5d</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-10-20T00:49:41-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">gitlab-ci: Rename FLAVOUR -> BUILD_FLAVOUR
Previously the Hadrian jobs used the `FLAVOUR` environment variable to
communicate which flavour `ci.sh` should build whereas `make` used
`BUILD_FLAVOUR`. This caused unnecessary confusion. Consolidate these
two.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ea736839d85594c95490dcf02d3325c2bbc68f33">ea736839</a></strong>
<div>
<span>by Alan Zimmerman</span>
<i>at 2020-10-20T08:35:34+01:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">API Annotations: Keep track of unicode for linear arrow notation
The linear arrow can be parsed as `%1 ->` or a direct single token unicode
equivalent.
Make sure that this distinction is captured in the parsed AST by using
IsUnicodeSyntax where it appears, and introduce a new API Annotation,
AnnMult to represent its location when unicode is not used.
Updated haddock submodule
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/cf3c3bcd93b3a515f3c2db81b5a7c42af480c9b6">cf3c3bcd</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-10-20T22:56:31-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">testsuite: Mark T12971 as fragile on Windows
Due to #17945.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e2c4a94708e4d8789ce97bd8b034e62f0e8b81c6">e2c4a947</a></strong>
<div>
<span>by Vladislav Zavialov</span>
<i>at 2020-10-21T16:00:30+03:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Parser regression tests, close #12862 #12446
These issues were fixed by earlier parser changes, most likely related
to whitespace-sensitive parsing.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/711929e6bcbcd5439dbf748cb57f56088b9a9f16">711929e6</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2020-10-23T02:42:59-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix error message location in tcCheckPatSynDecl
Ticket #18856 showed that we were failing to set the right location
for an error message. Easy to fix, happily.
Turns out that this also improves the error location in test T11010,
which was bogus before but we had never noticed.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/730bb59086ad1036143983c3fba61bd851bebc03">730bb590</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-10-23T02:43:33-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">cmm: Add Note reference to ForeignHint</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/ae63b16a7fa87f58ad0644be4a98266fe9bbbeae">ae63b16a</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-10-26T10:20:53-04:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Document that ccall convention doesn't support varargs
We do not support foreign "C" imports of varargs functions. While this
works on amd64, in general the platform's calling convention may need
more type information that our Cmm representation can currently provide.
For instance, this is the case with Darwin's AArch64 calling convention.
Document this fact in the users guide and fix T5423 which makes use of a
disallowed foreign import.
Closes #18854.
</pre>
</li>
</ul>
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.gitlab-ci.yml
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<a href="#157f7634c25bc6366cb7c9c9edb48e819dce38db">
.gitlab/ci.sh
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compiler/GHC/Builtin/Types/Prim.hs
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compiler/GHC/Cmm/CallConv.hs
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compiler/GHC/Cmm/DebugBlock.hs
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compiler/GHC/Cmm/Type.hs
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compiler/GHC/CmmToLlvm/Regs.hs
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compiler/GHC/Core/Type.hs
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compiler/GHC/Driver/Flags.hs
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compiler/GHC/Driver/Pipeline.hs
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compiler/GHC/Driver/Session.hs
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compiler/GHC/Driver/Types.hs
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compiler/GHC/Hs/Type.hs
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compiler/GHC/Parser/Annotation.hs
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compiler/GHC/Parser/Errors.hs
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compiler/GHC/Parser/Errors/Ppr.hs
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compiler/GHC/Parser/Lexer.x
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compiler/GHC/Parser/PostProcess.hs
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compiler/GHC/Parser/PostProcess/Haddock.hs
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compiler/GHC/Tc/Utils/TcMType.hs
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