r220003 - in /trunk/gcc: ChangeLog testsuite/Ch...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Thu Jan 22 16:07:36 2015
New Revision: 220003

URL: https://gcc.gnu.org/viewcvs?rev=220003&root=gcc&view=rev
Log:
2015-01-22  Richard Biener  <rguenther@suse.de>

	PR middle-end/64728
	* tree-ssa-coalesce.c (coalesce_partitions): Do not perform
	abnormal coalescing on undefined SSA names.

	* gcc.dg/torture/pr64728.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr64728.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-coalesce.c