2017-07-25  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/81510
	* tree-vect-loop.c (vect_is_simple_reduction): When the
	reduction stmt is not inside the loop bail out.

	* gcc.dg/torture/pr81510.c: New testcase.
	* gcc.dg/torture/pr81510-2.c: Likewise.

From-SVN: r250504