toolchain_gcc/gcc-4.9/gcc/ChangeLog, branch master

GCC unification, part 2. Fix various errors from previous unificaiton.

2016-03-16T20:56:07+00:00

The previous version of the unified GCC compiler (Android & ChromeOS)
caused some ChromeOS tests to fail.  It also caused an Android NDK
test case to fail.  This CL fixes those problems.  In particular it
does the following:

- Fix some file formatting errors from previous unification patch.
- Update ChangeLog files to reflect Android backport patches.
- Find and incorporate a few missing pieces from the following backports
backports from trunk r221007, r221675, r222011, r212011, r214942,
r214957, r215012, r215016, r218115, r218733, r218746, r220491.  This
involved small changes in the following files:

 gcc/cfghoks.c
 gcc/cfgloop.c
 gcc/cfgloop.h
 gcc/except.c
 gcc/loop-init.c
 gcc/omp-low.c

- Fix minor Android test case regression introduced in the previous
unification patch.

Change-Id: I482e3a34e3ed97c7ba609fe2954b4781f02ec617

Unify ChromeOS and Android versions of GCC.

2016-02-26T16:25:55+00:00

This CL updates Android's GCC to match ChromeOS's GCC (with
appropriate patches applied in both places to make sure no
cherry-picked changes are lost).

Change-Id: I390140c449b0e5df9ee78a06268319c8c510302f

Revert "cherrypick GCC trunk 210497", but extract fix for the SEGV from it

2015-08-26T17:19:21+00:00

BUG=23157315
This reverts commit 659b5199aa009008a003062ff828f44b6bd70b65.

Change-Id: I3564560d3aa57c039c6bc78e0cd630cea3a4bb8b

cherrypick GCC trunk 210497

2015-08-13T18:38:49+00:00

BUG=23157315
2014-05-16  James Greenhalgh  
           Philipp Tomsich  
[AArch64 costs 5/18] Factor out common MULT cases

gcc/

	* config/aarch64/aarch64.c (aarch64_strip_shift_or_extend): Rename
	to...
	(aarch64_strip_extend): ...this, don't strip shifts, check RTX is
	well formed.
	(aarch64_rtx_mult_cost): New.
	(aarch64_rtx_costs): Use it, refactor as appropriate.

Change-Id: I298e5af1b4006f37d873b113c8d05643e897f6f1

cherry-pick gcc r217091.

2015-07-08T16:59:16+00:00

This change is re-based and modified to work with the older context, as the
context code is changed a lot in GCC trunk.
It is about to insert some barriers on stack-pointer register, so that the
adjust-stack-pointer code does not get scheduled before any code in the
fuction epilogue, which may access some stack space without explicit use of
stack pointer.
Examples are a load from an auto array and some access to an area of alloca.
Anyway, the barriers would make all such alias dependences not violated.
For more details, please refer to GCC bug 63293.
(Personally I think there may be a bit too many barriers generated.)

Change-Id: I61ea54e500b6965feab69a62165d10b6c3a21c20

Synchronize with google/gcc-4_9 to r224707 (from r214835)

2015-06-29T17:56:28+00:00

Change-Id: I3d6f06fc613c8f8b6a82143dc44b7338483aac5d

Cherry-pick: Increase PARAM_MAX_COMPLETELY_PEELED_INSNS when branch is costly

2015-02-11T07:54:09+00:00

  Author: uros 
  Date:   Sat Nov 22 19:02:12 2014 +0000

        * params.def (PARAM_MAX_COMPLETELY_PEELED_INSNS): Increase to 200.
        * config/i386/i386.c (ix86_option_override_internal): Do not increase
        PARAM_MAX_COMPLETELY_PEELED_INSNS.

Change-Id: I202e14a29f2436872910301efec863afdd4127e7

[4.9] Restore recog state after finding pre-madd instruction.

2014-11-05T22:25:07+00:00

This patch backports svn r216853 from upsteam gcc-4.9 branch that
fixed a bug introduced in fixing cortex a53 erratum 835769.

Change-Id: Iccc6fd04ede28c2deba51be3f8e348ce374c8b4f

[4.9] Backport patches fixed vectorization issues.

2014-10-31T19:00:28+00:00

Backport 3 patches from upstream gcc that fixed some vectorization
issues: r215585 fixed PR63341
        r216508 fixed PR63563
        r216770 fixed PR63530

Change-Id: I650bf25ef0843b1ff01911b567fb26e069fd4550

[4.9] LINK_SPEC changes for Cortex-A53 erratum 835769 workaround

2014-10-31T17:54:01+00:00

This is proted from upstream gcc-4_9 branch: svn r216979.

Change-Id: I1cee530fb4f50843a9832aa678c1630f51564fa6