r241899 - in /trunk/gcc: ChangeLog testsuite/Ch...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Mon Nov  7 12:25:09 2016
New Revision: 241899

URL: https://gcc.gnu.org/viewcvs?rev=241899&root=gcc&view=rev
Log:
2016-11-07  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/78228
	* tree-ssa-phiopt.c (abs_replacement): Avoid introducing
	undefined behavior.

	* gcc.dg/tree-ssa/phi-opt-15.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-15.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-phiopt.c