r238144 - in /branches/gcc-4_9-branch/gcc: Chan...

[jakub@gcc.gnu.org]

Author: jakub
Date: Thu Jul  7 21:52:31 2016
New Revision: 238144

URL: https://gcc.gnu.org/viewcvs?rev=238144&root=gcc&view=rev
Log:
	Backported from mainline
	2016-06-21  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/71588
	* tree-ssa-strlen.c (valid_builtin_call): New function.
	(adjust_last_stmt, strlen_optimize_stmt): Use it.

	* gcc.dg/pr71558.c: New test.

Added:
    branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/pr71558.c
Modified:
    branches/gcc-4_9-branch/gcc/ChangeLog
    branches/gcc-4_9-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_9-branch/gcc/tree-ssa-strlen.c