Summary:
As discussed on ghc-devs@haskell.org and the trac ticket, we're removing
these packages from the 7.10 release as they no longer work correctly,
and can't easily be made to properly follow the standard as `base`
changes over time.

This does not remove the packages from the tree, only the build system.

https://www.haskell.org/pipermail/ghc-devs/2014-November/007357.html



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

Test Plan: iiam

Reviewers: hvr, ekmett

Reviewed By: hvr, ekmett

Subscribers: thomie, carter

Differential Revision: https://phabricator.haskell.org/D510

GHC Trac Issues: #9590

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.

This patch refactors internal representation of type synonyms and type families by splitting them into two separate data constructors of TyCon data type. The main motivation is is that some fields make sense only for type synonyms and some make sense only for type families. This will be even more true with the upcoming injective type families.

There is also some refactoring of names to keep the naming constistent. And thus tc_kind field has become tyConKind and tc_roles has become tcRoles. Both changes are not visible from the outside of TyCon module.

Updates haddock submodule

Reviewers: simonpj

Differential Revision: https://phabricator.haskell.org/D508

GHC Trac Issues: #9812

Summary:
See https://ghc.haskell.org/trac/ghc/wiki/Plugins/TypeChecker

This is based on work by Iavor Diatchki and Eric Seidel.

Test Plan: validate

Reviewers: simonpj, austin

Reviewed By: austin

Subscribers: gridaphobe, yav, thomie, carter

Differential Revision: https://phabricator.haskell.org/D489

Conflicts:
	docs/users_guide/7.10.1-notes.xml

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.

Alas `{-# LANGUAGE Safe #-}` can't be used since `Data.Coerce` isn't "safe".
However, we use `coerce` just as an optimisation
(see also 4ba884bd which broke the
safe-inferred status of `Data.Functor.Identity`), so this module at least
deserves `{-# LANGUAGE Trustworthy #-}`.

NOTE: `Data.Functor.Identity` was added to `base` in the context of #9664

Reviewed By: luite

Differential Revision: https://phabricator.haskell.org/D507

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

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

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:
shiftRightLogical used a host sized Word for the intermediate value,
which would produce the wrong result when cross compiling to a target
with a different word size than the host.

removeOp32 used the preprocessor to bake in word size assumptions,
rather than getting the target word size from DynFlags

Test Plan: validate

Reviewers: hvr, rwbarton, carter, austin

Reviewed By: austin

Subscribers: thomie, carter

Differential Revision: https://phabricator.haskell.org/D502

GHC Trac Issues: #9736

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

Reviewers: bgamari, austin

Reviewed By: austin

Subscribers: thomie, carter

Differential Revision: https://phabricator.haskell.org/D500

GHC Trac Issues: #9807

Summary: This adds a few missing instances that can be automatically derived

Reviewers: hvr, goldfire, austin

Reviewed By: goldfire, austin

Subscribers: thomie, carter

Differential Revision: https://phabricator.haskell.org/D495

Test Plan: ./validate

Reviewers: austin

Reviewed By: austin

Subscribers: thomie, carter

Differential Revision: https://phabricator.haskell.org/D492

Summary:
This is already done near the only call site so why not. It is ugly to
see it at 'abiHash' itself.

Test Plan: validate

Reviewers: austin

Reviewed By: austin

Subscribers: thomie, carter

Differential Revision: https://phabricator.haskell.org/D491

Summary:
All done, except for these 2 empty commits:

$ git log --author=unknown --use-mailmap --oneline
7e5c2b23 [project @ 2001-12-06 10:17:35 by mbs] Established under cvs.
64565981 [project @ 2000-12-01 10:33:41 by cryder] Initial revision

Reviewers: hvr, austin

Reviewed By: austin

Subscribers: thomie, carter

Differential Revision: https://phabricator.haskell.org/D477

Summary:
Turn CoreWriter into a newtype. A comment claimed something is forced
before returning, but it's actually not. Change comment to match
reality.

Reviewers: xich, simonpj, ezyang, austin

Reviewed By: ezyang, austin

Subscribers: thomie, carter

Differential Revision: https://phabricator.haskell.org/D453

Summary: Also explicitly define foldl1 and foldr1, which should generally work better with list-specific versions.

Reviewers: austin

Reviewed By: austin

Subscribers: rwbarton, thomie, carter

Differential Revision: https://phabricator.haskell.org/D430

Summary:
Since commit 7828bf3e
* --make is the default
* -c is a mode flag, except when used in combination with --make

Also:
* -C (generate C code) is only available in unregisterised mode.

Reviewers: austin

Reviewed By: austin

Subscribers: thomie, carter

Differential Revision: https://phabricator.haskell.org/D427

Summary:
To address #2521 ("Trailing colon on GHC_PACKAGE_PATH doesn't work with
ghc-pkg"), we were using a custom version of splitSearchPath (e4f46f5d). This
solution however caused issue #9698 ("GHC_PACKAGE_PATH should be more lenient
for empty paths").

This patch reverts back to System.FilePath.splitSearchPath (fixes #9698) and
adresses (#2521) by testing for a trailing search path separators explicitly
(instead of implicitly using empty search path elements).

Empty paths are now allowed (ignored on Windows, interpreted as current
directory on Posix systems), and trailing path separator still tack on the
user and system package databases.

Also update submodule filepath, which has a version of splitSearchPath which
handles quotes in the same way as our custom version did.

Test Plan:
$ GHC_PACKAGE_PATH=/::/home: ./ghc-pkg list
...
db stack: ["/",".","/home","<userdb>","<systemdb>"]
...

Reviewers: austin

Reviewed By: austin

Subscribers: thomie, carter, simonmar

Differential Revision: https://phabricator.haskell.org/D414

GHC Trac Issues: #2521, #9698

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>

Authored-by: jrp

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

This also overrides all optional `Foldable` methods
(which would otherwise be default-implemented in terms of `foldMap`)
with supposedly optimally minimal implementations.

While at it, this also removes the redundant `{-# LANGUAGE CPP #-}`.

Reviewed By: austin, dfeuer

Differential Revision: https://phabricator.haskell.org/D467

`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