2014-11-13  Teresa Johnson  <tejohnson@google.com>

gcc:
	PR tree-optimization/63841
	* tree-ssa-strlen.c (strlen_optimize_stmt): Ignore clobbers.

2014-11-13  Teresa Johnson  <tejohnson@google.com>

gcc/testsuite:
	PR tree-optimization/63841
	* testsuite/g++.dg/tree-ssa/pr63841.C: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_9-branch@217522 138bc75d-0d04-0410-961f-82ee72b054a4