gcc/

2016-06-29  Yuri Rumyantsev  <ysrumyan@gmail.com>

	PR tree-optimization/70729
	* tree-ssa-loop-im.c (ref_indep_loop_p_1): Consider memory reference as
	independent in loops having positive safelen value.
	* tree-vect-loop.c (vect_transform_loop): Clear-up safelen value since
	it may be not valid after vectorization.

gcc/testsuite/

2016-06-29  Yuri Rumyantsev  <ysrumyan@gmail.com>

	PR tree-optimization/70729
	* g++.dg/vect/pr70729.cc: New test.

From-SVN: r237844