r238100 - in /branches/gcc-5-branch/gcc: Change...

[jakub@gcc.gnu.org]

Author: jakub
Date: Thu Jul  7 12:47:20 2016
New Revision: 238100

URL: https://gcc.gnu.org/viewcvs?rev=238100&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, handle_builtin_memset, strlen_optimize_stmt): Use
	it.

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

Added:
    branches/gcc-5-branch/gcc/testsuite/gcc.dg/pr71558.c
Modified:
    branches/gcc-5-branch/gcc/ChangeLog
    branches/gcc-5-branch/gcc/testsuite/ChangeLog
    branches/gcc-5-branch/gcc/tree-ssa-strlen.c