2019-06-13  Richard Biener  <rguenther@suse.de>

	* tree-vectorizer.h (vect_loop_vectorized_call): Declare.
	* tree-vectorizer.c (vect_loop_vectorized_call): Export and
	also return the condition stmt.
	* tree-vect-loop-manip.c (vect_loop_versioning): Compute outermost
	loop we can version and version that, reusing the loop version
	created by if-conversion instead of versioning again.

	* gcc.dg/vect/vect-version-1.c: New testcase.
	* gcc.dg/vect/vect-version-2.c: Likewise.

From-SVN: r272239