2019-03-11  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/89649
	* tree-vectorizer.h (vect_loop_versioning): Adjust prototype.
	* tree-vect-loop-manip.c (vect_do_peeling): Unset force_vectorize
	on the prolog and epilog loops.
	(vect_loop_versioning): Return copy of loop.
	* tree-vect-loop.c (vect_transform_loop): Unset force_vectorize
	on the non-vectorized version of the loop.

From-SVN: r269578