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Summary: (this has been submitted on behalf on @dreixel)

Reviewers: simonpj, hvr, austin

Reviewed By: simonpj, austin

Subscribers: goldfire, thomie, carter, dreixel

Differential Revision: https://phabricator.haskell.org/D476

GHC Trac Issues: #5462

Summary: add `-fwarn-missing-exported-sigs` to only warn about missing signatures if the name is exported

Test Plan: validate, see testsuite/tests/warnings/should_compile/T2526.hs

Reviewers: ezyang, austin, thomie

Reviewed By: austin, thomie

Subscribers: ezyang, thomie, carter

Differential Revision: https://phabricator.haskell.org/D482

GHC Trac Issues: #2526

Conflicts:
	docs/users_guide/7.10.1-notes.xml

Summary:
The `Data.OldList` module was originally created in
3daf0023 to provide a way to access the
original list-specialised functions from `Data.List`. It was also made
an exposed module in order to facilitate adapting the
`haskell2010`/`haskell98` packages. However, since the
`haskell2010`/`haskell98` packages were dropped, we no longer need to
expose `Data.OldList`.

Depends on D511

Reviewers: ekmett, austin

Reviewed By: ekmett, austin

Subscribers: thomie, carter

Differential Revision: https://phabricator.haskell.org/D513

This test case should pass right now -- the bug is fixed,
presumably by #9200.

This includes a submodule update for `array`.
There is also an added test in libraries/array/tests/T9220.

Syntax is of the form

    pattern P :: (Prov b) => (Req a) => a -> b -> Int -> T a

which declares a pattern synonym called `P`, with argument types `a`, `b`,
and `Int`, and result type `T a`, with provided context `(Prov b)` and required
context `(Req a)`.

The Haddock submodule is also updated to use this new syntax in generated docs.

this impliments #9703 from ghc trac

Test Plan: still needs tests

Reviewers: cmsaperstein, ekmett, goldfire, austin

Reviewed By: goldfire, austin

Subscribers: goldfire, thomie, carter, simonmar

Differential Revision: https://phabricator.haskell.org/D353

GHC Trac Issues: #9703

Test Plan: Compiled ghc fine.  Opened ghci and fed it invalid code.  It gave the improved error messages in response.

Reviewers: austin

Subscribers: thomie, simonpj, spacekitteh, rwbarton, simonmar, carter

Differential Revision: https://phabricator.haskell.org/D201

Test Plan: test T9776 under tests/driver

Reviewers: jstolarek, austin

Reviewed By: jstolarek, austin

Subscribers: jstolarek, thomie, carter

Differential Revision: https://phabricator.haskell.org/D503

GHC Trac Issues: #9776

Summary: allows things such as: -ddump-to-file -ddump-splices

Test Plan:
compile with flags -ddump-to-file -ddump-splices
verify that it does output an extra file

Try out other flags.
I noticed that with -ddump-tc there is some output going to file and some to stdout.

Reviewers: hvr, austin

Reviewed By: austin

Subscribers: simonpj, thomie, carter

Differential Revision: https://phabricator.haskell.org/D460

GHC Trac Issues: #9126

Summary:
This allows to link objects produced with the llvm code generator to be linked with -dead_strip. This applies to at least the iOS cross compiler and OS X compiler.
Signed-off-by: Moritz Angermann <moritz@lichtzwerge.de>

Test Plan: Create a ffi library and link it with -dead_strip. If the resulting binary does not crash, the patch works as advertised.

Reviewers: rwbarton, simonmar, hvr, dterei, mzero, ezyang, austin

Reviewed By: dterei, ezyang, austin

Subscribers: thomie, mzero, simonmar, ezyang, carter

Differential Revision: https://phabricator.haskell.org/D206

Msys binaries apply heuristics to escape paths in arguments intended for
non-msys binaries, which breaks timeout invocations, see #9626

.
Signed-off-by: Austin Seipp <austin@well-typed.com>

`integer-gmp2` uses the new 64bit-based IEEE deconstructing primop
introduced in b62bd5ec.

However, the returned values differ for exceptional IEEE values:

Previous (expected) semantics:

  > decodeFloat (-1/0)
  (-4503599627370496,972)

  > decodeFloat (1/0)
  (4503599627370496,972)

  > decodeFloat (0/0)
  (-6755399441055744,972)

Currently (broken) semantics:

  > decodeFloat (-1/0 :: Double)
  (-9223372036854775808,-53)

  > decodeFloat (1/0 :: Double)
  (-9223372036854775808,-53)

  > decodeFloat (0/0 :: Double)
  (-9223372036854775808,-53)

This patch reverts to the old expected semantics.

I plan to revisit the implementation during GHC 7.11 development.

This should address #9810

Reviewed By: austin, ekmett, luite

Differential Revision: https://phabricator.haskell.org/D486

The import/export operations were available in `integer-gmp-0.5.1`
already, but need to be reimplemented from scratch for the
`integer-gmp-1.0.0` rewrite.

This also adds a few more operations than were previously available for
use w/ the `BigNat` type (which will be useful for implementing
serialisation for the upcoming `Natural` type)

Specifically, the following operations are (re)added (albeit with
slightly different type-signatures):

 - `sizeInBaseBigNat`
 - `sizeInBaseInteger`
 - `sizeInBaseWord#`

 - `exportBigNatToAddr`
 - `exportIntegerToAddr`
 - `exportWordToAddr`
 - `exportBigNatToMutableByteArray`
 - `exportIntegerToMutableByteArray`
 - `exportWordToMutableByteArray`

 - `importBigNatFromAddr`
 - `importIntegerFromAddr`
 - `importBigNatFromByteArray`
 - `importIntegerFromByteArray`

NOTE: The `integerGmpInternals` test-case is updated but not yet
      re-enabled as it contains tests for other primitives which aren't
      yet reimplemented.

This addresses #9281

Reviewed By: austin, duncan

Differential Revision: https://phabricator.haskell.org/D480

Summary:
- Feature flag indicates to Cabal that we support thinning and renaming as
  it needs.

- Support -package "base with (Foo as Bar)" which brings the ordinary
  modules into scope, as well as adding the renamings to scope.
Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu>

Test Plan: validate

Reviewers: simonpj, austin

Subscribers: thomie, carter

Differential Revision: https://phabricator.haskell.org/D485

Summary:
The intent of this commit is to make test suite cases more stable, so that
it doesn't matter what order we load interface files in, the test output
doesn't change.
Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu>

Test Plan: validate

Reviewers: simonpj, austin

Subscribers: thomie, carter

Differential Revision: https://phabricator.haskell.org/D484

Summary:
The derived Show instances for SrcSpan and SrcLoc are very verbose.

This patch replaces them with hand-made ones which use positional
syntax for the record constructors, rather than exhaustively listing
each one.

Test Plan: sh ./validate

Reviewers: austin

Reviewed By: austin

Subscribers: thomie, carter

Differential Revision: https://phabricator.haskell.org/D445

This pulls in the new `Generic`-based `-XDefaultSignature`-based default
implementation for `rnf`[1], and will be interesting to use in combination
with the soon to be merged `-XDeriveAnyClass` extension.

This requires updating several other submodules as well in order
to relax the upper bound on `deepseq` and/or in a few cases to
avoid relying on the default method implementation of `rnf`:

 - `Cabal`
 - `bytestring`
 - `containers`
 - `parallel`
 - `process`
 - `time`

 [1]: http://permalink.gmane.org/gmane.comp.lang.haskell.libraries/23031

This is only a temporary kludge until the issue workarounded by 452d6aa9
gets properly fixed

Summary:
Instead of recording exposed-modules and reexported-modules as seperate
fields in the installed package database, this commit merges them into
a single field (exposed-modules).  The motivation for this change is
in preparation for the inclusion of *signatures* into the installed
package database, which may also be reexported.  Merging the representation
means that we can treat reexports uniformly, no matter if they're a normal
module or a signature.

This commit adds a stub for signatures, but that code isn't wired up to
anything yet.

Contains Cabal submodule update to accommodate these changes.
Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu>

Test Plan: validate

Reviewers: simonpj, duncan, austin

Subscribers: thomie, carter, simonmar

Differential Revision: https://phabricator.haskell.org/D421

David Feuer authored Nov 13, 2014 and Herbert Valerio Riedel committed Nov 13, 2014

Implement an `amap`/`coerce` rule in `GHC.Arr` to match the
`map`/`coerce` rule in GHC.Base.

In order to do so, delay inlining `amap` until phase 1.

To prevent the inlining delay from causing major inefficiencies due to
missed list fusion, rewrite `amap` to avoid relying on list fusion. This
has the extra benefit of reducing the size of the compiled amap code by
skipping the impossible case of an array with a negative size.

Reviewed By: nomeata

Differential Revision: https://phabricator.haskell.org/D471

generate a worker function of type Void# -> T#, and redirect the wrapper
(via a compulsory unfolding) to the worker. Fixes #9732.

Update submodule haskell2010, haskell98, hoop, hpc and stm to fix new
warnings.

This warns when a module marked as `-XTrustworthy` could have been
inferred as safe instead.

See the ticket for more info about the new algorithm. This is a small
simplification, unifying the treatment of type checking in a few
similar situations.

[skip ci]

No test case added, as the original mistake is just one level
up from a typo.

[skip ci] -- testsuite wibbles are in next commit