r221820 - in /branches/linaro/gcc-4_9-branch/gc...

[yroux@gcc.gnu.org]

Author: yroux
Date: Thu Apr  2 06:45:24 2015
New Revision: 221820

URL: https://gcc.gnu.org/viewcvs?rev=221820&root=gcc&view=rev
Log:
gcc/
2015-04.02  Yvan Roux  <yvan.roux@linaro.org>

	Backport from trunk r218855.
	2014-12-18  Bin Cheng  <bin.cheng@arm.com>

	PR tree-optimization/62178
	* tree-ssa-loop-ivopts.c (cheaper_cost_with_cand): New function.
	(iv_ca_replace): New function.
	(try_improve_iv_set): New parameter try_replace_p.
	Break local optimal fixed-point by calling iv_ca_replace.
	(find_optimal_iv_set_1): Pass new argument to try_improve_iv_set.

gcc/testsuite/
2015-04:02  Yvan Roux  <yvan.roux@linaro.org>

	Backport from trunk r218855.
	2014-12-18  Bin Cheng  <bin.cheng@arm.com>

	PR tree-optimization/62178
	* gcc.target/aarch64/pr62178.c: New test.


Added:
    branches/linaro/gcc-4_9-branch/gcc/testsuite/gcc.target/aarch64/pr62178.c
Modified:
    branches/linaro/gcc-4_9-branch/gcc/ChangeLog.linaro
    branches/linaro/gcc-4_9-branch/gcc/testsuite/ChangeLog.linaro
    branches/linaro/gcc-4_9-branch/gcc/tree-ssa-loop-ivopts.c