[Git][ghc/ghc][wip/marge_bot_batch_merge_job] 21 commits: users-guide: Fix directive errors on 8.10

Tue May 21 21:57:02 UTC 2019

 Marge Bot pushed to branch wip/marge_bot_batch_merge_job at Glasgow Haskell Compiler / GHC

Commits:
54095bbd by Takenobu Tani at 2019-05-21T20:54:00Z
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]

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8fc654c3 by David Eichmann at 2019-05-21T20:57:37Z
Include CPP preprocessor dependencies in -M output

Issue #16521

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0af519ac by David Eichmann at 2019-05-21T21:01:16Z
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

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9342b1fa by Kirill Elagin at 2019-05-21T21:04:54Z
users-guide: Fix -rtsopts default
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d0142f21 by Javran Cheng at 2019-05-21T21:08:29Z
Fix doc for Data.Function.fix.

Doc-only change.

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ddd905b4 by Shayne Fletcher at 2019-05-21T21:12:07Z
Update resolver for for happy 1.19.10

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e32c30ca by Alp Mestanogullari at 2019-05-21T21:15:45Z
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.

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4a6c8436 by Ryan Scott at 2019-05-21T21:19:22Z
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.

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c32f64e5 by Ben Gamari at 2019-05-21T21:23:01Z
gitlab-ci: Allow Windows Hadrian build to fail

Due to #16574.
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412a1f39 by Ben Gamari at 2019-05-21T21:23:01Z
Update .gitlab-ci.yml
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08b849e4 by Michael Sloan at 2019-05-21T21:56:49Z
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.

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78ed75fa by Michael Sloan at 2019-05-21T21:56:50Z
Use datatype for unboxed returns when loading ghc into ghci

See #13101 and #15454

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9d6d2178 by Kevin Buhr at 2019-05-21T21:56:50Z
Add regression test for old Word32 arithmetic issue (#497)

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f7e213a6 by Alec Theriault at 2019-05-21T21:56:52Z
RTS: Fix restrictive cast

Commit e75a9afd2989e0460f9b49fa07c1667299d93ee9 added an `unsigned` cast
to account for OSes that have signed `rlim_t` signed. Unfortunately,
the `unsigned` cast has the unintended effect of narrowing `rlim_t` to
only 4 bytes. This leads to some spurious out of memory crashes
(in particular: Haddock crashes with OOM whenn building docs of
`ghc`-the-library).

In this case, `W_` is a better type to cast to: we know it will be
unsigned too and it has the same type as `*len` (so we don't suffer from
accidental narrowing).

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4b0afd83 by Alp Mestanogullari at 2019-05-21T21:56:54Z
Hadrian: add --test-root-dirs, to only run specific directories of tests

We can specify several of those, by using the flag multiple times or
just once but combining the directories with ':'.

Along the way, this patch also fixes the testsuite-related --only flag,
so that we can use it many times instead of being force to specify a
space-separated list of test in a single --only flag.

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1225879f by Ryan Scott at 2019-05-21T21:56:56Z
Use HsTyPats in associated type family defaults

Associated type family default declarations behave strangely in a
couple of ways:

1. If one tries to bind the type variables with an explicit `forall`,
   the `forall`'d part will simply be ignored. (#16110)
2. One cannot use visible kind application syntax on the left-hand
   sides of associated default equations, unlike every other form
   of type family equation. (#16356)

Both of these issues have a common solution. Instead of using
`LHsQTyVars` to represent the left-hand side arguments of an
associated default equation, we instead use `HsTyPats`, which is what
other forms of type family equations use. In particular, here are
some highlights of this patch:

* `FamEqn` is no longer parameterized by a `pats` type variable, as
  the `feqn_pats` field is now always `HsTyPats`.
* The new design for `FamEqn` in chronicled in
  `Note [Type family instance declarations in HsSyn]`.
* `TyFamDefltEqn` now becomes the same thing as `TyFamInstEqn`. This
  means that many of `TyFamDefltEqn`'s code paths can now reuse the
  code paths for `TyFamInstEqn`, resulting in substantial
  simplifications to various parts of the code dealing with
  associated type family defaults.

Fixes #16110 and #16356.

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ee1e2c03 by Luite Stegeman at 2019-05-21T21:56:56Z
fix Template Haskell cross compilation on 64 bit compiler with 32 bit target

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5af97e96 by Moritz Angermann at 2019-05-21T21:56:56Z
Lowercase windows imports

While windows and macOS are currently on case-insensitive file
systems, this poses no issue on those.  When cross compiling from
linux with a case sensitive file system and mingw providing only
lowercase headers, this in fact produces an issue.  As such we just
lowercase the import headers, which should still work fine on a
case insensitive file system and also enable mingw's headers to
be usable porperly.

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a5defb43 by Moritz Angermann at 2019-05-21T21:56:57Z
Add `keepCAFs` to RtsSymbols

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127d8302 by Joshua Price at 2019-05-21T21:56:58Z
Correct the large tuples section in user's guide

Fixes #16644.

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a0eae25d by Krzysztof Gogolewski at 2019-05-21T21:56:58Z
Fix tcfail158 (#15899)

As described in #15899, this test was broken, but now it's back
to normal.

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30 changed files:

- .gitlab-ci.yml
- compiler/basicTypes/UniqSupply.hs
- compiler/deSugar/DsMeta.hs
- compiler/hieFile/HieAst.hs
- compiler/hsSyn/Convert.hs
- compiler/hsSyn/HsDecls.hs
- compiler/hsSyn/HsExtension.hs
- compiler/hsSyn/HsInstances.hs
- compiler/main/DriverMkDepend.hs
- compiler/main/DynFlags.hs
- compiler/main/GhcMake.hs
- compiler/nativeGen/AsmCodeGen.hs
- compiler/nativeGen/RegAlloc/Linear/State.hs
- compiler/parser/RdrHsSyn.hs
- compiler/rename/RnSource.hs
- compiler/typecheck/TcSplice.hs
- compiler/typecheck/TcTyClsDecls.hs
- distrib/configure.ac.in
- docs/users_guide/8.10.1-notes.rst
- docs/users_guide/bugs.rst
- docs/users_guide/ghci.rst
- docs/users_guide/glasgow_exts.rst
- docs/users_guide/phases.rst
- docs/users_guide/separate_compilation.rst
- docs/users_guide/using-warnings.rst
- driver/utils/dynwrapper.c
- hadrian/doc/testsuite.md
- hadrian/src/CommandLine.hs
- hadrian/src/Hadrian/Utilities.hs
- hadrian/src/Rules.hs

The diff was not included because it is too large.

View it on GitLab: https://gitlab.haskell.org/ghc/ghc/compare/273d35e26cd26a0163e76c01b455ad198e9ec57c...a0eae25d5812411c91ba784d7b1a80fcac31ec61

-- 
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/compare/273d35e26cd26a0163e76c01b455ad198e9ec57c...a0eae25d5812411c91ba784d7b1a80fcac31ec61
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