r250763 - in /trunk/gcc: ChangeLog testsuite/Ch...

[amker@gcc.gnu.org]

Author: amker
Date: Tue Aug  1 09:17:29 2017
New Revision: 250763

URL: https://gcc.gnu.org/viewcvs?rev=250763&root=gcc&view=rev
Log:
	PR tree-optimization/81620
	* tree-predcom.c (add_ref_to_chain): Don't set has_max_use_after
	for store-store chain.

	gcc/testsuite
	* gcc.dg/tree-ssa/pr81620-1.c: New.
	* gcc.dg/tree-ssa/pr81620-2.c: New.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr81620-1.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr81620-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-predcom.c