r230813 - in /branches/gcc-4_9-branch/gcc: Chan...

[ktkachov@gcc.gnu.org]

Author: ktkachov
Date: Tue Nov 24 14:27:51 2015
New Revision: 230813

URL: https://gcc.gnu.org/viewcvs?rev=230813&root=gcc&view=rev
Log:
[RTL-ree] PR rtl-optimization/68194: Restrict copy instruction in presence of conditional moves

	Backport from mainline
	2015-11-24  Bernd Schmidt <bschmidt@redhat.com>
	            Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	PR rtl-optimization/68194
	PR rtl-optimization/68328
	PR rtl-optimization/68185
	* ree.c (combine_reaching_defs): Reject copy_needed case if
	copies_list is not empty.

	* gcc.c-torture/execute/pr68185.c: New test.
	* gcc.c-torture/execute/pr68328.c: Likewise.

Added:
    branches/gcc-4_9-branch/gcc/testsuite/gcc.c-torture/execute/pr68185.c
    branches/gcc-4_9-branch/gcc/testsuite/gcc.c-torture/execute/pr68328.c
Modified:
    branches/gcc-4_9-branch/gcc/ChangeLog
    branches/gcc-4_9-branch/gcc/ree.c
    branches/gcc-4_9-branch/gcc/testsuite/ChangeLog