[commit: ghc] master: Add subWordC# on x86ish (8160f42)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/8160f42b8dad33e47b4c73ed3f9bf889462e7bfe/ghc

>---------------------------------------------------------------

commit 8160f42b8dad33e47b4c73ed3f9bf889462e7bfe
Author: Nikita Karetnikov <nikita at karetnikov.org>
Date:   Sat Oct 31 12:27:54 2015 +0100

    Add subWordC# on x86ish
    
    This adds a subWordC# primop which implements subtraction with overflow
    reporting.
    
    Reviewers: tibbe, goldfire, rwbarton, bgamari, austin, hvr
    
    Reviewed By: bgamari
    
    Subscribers: thomie
    
    Differential Revision: https://phabricator.haskell.org/D1334
    
    GHC Trac Issues: #10962


>---------------------------------------------------------------

8160f42b8dad33e47b4c73ed3f9bf889462e7bfe
 compiler/cmm/CmmMachOp.hs                              |  1 +
 compiler/cmm/PprC.hs                                   |  1 +
 compiler/codeGen/StgCmmPrim.hs                         | 17 +++++++++++++++++
 compiler/llvmGen/LlvmCodeGen/CodeGen.hs                | 13 +++++++++++--
 compiler/nativeGen/PPC/CodeGen.hs                      |  1 +
 compiler/nativeGen/SPARC/CodeGen.hs                    |  1 +
 compiler/nativeGen/X86/CodeGen.hs                      | 15 ++++++++++-----
 compiler/prelude/primops.txt.pp                        |  5 +++++
 libraries/base/GHC/Natural.hs                          |  7 -------
 libraries/integer-gmp/src/GHC/Integer/Type.hs          |  7 -------
 testsuite/tests/numeric/should_run/T10962.hs           | 16 ++++++++++++++++
 testsuite/tests/numeric/should_run/T10962.stdout-ws-32 |  2 ++
 testsuite/tests/numeric/should_run/T10962.stdout-ws-64 |  2 ++
 testsuite/tests/numeric/should_run/all.T               |  1 +
 14 files changed, 68 insertions(+), 21 deletions(-)

Diff suppressed because of size. To see it, use:

    git diff-tree --root --patch-with-stat --no-color --find-copies-harder --ignore-space-at-eol --cc 8160f42b8dad33e47b4c73ed3f9bf889462e7bfe