r238373 - in /trunk/gcc: ChangeLog testsuite/Ch...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Fri Jul 15 12:56:17 2016
New Revision: 238373

URL: https://gcc.gnu.org/viewcvs?rev=238373&root=gcc&view=rev
Log:
2016-07-15  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/71887
	* tree-ssa-phiopt.c (absorbing_element_p): Add rhs arg and
	verify it is not zero for division / modulo handling.
	(value_replacement): Adjust.

	* gcc.dg/torture/pr71887.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr71887.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-phiopt.c