re PR regression/86304 ([MIPS] FAIL: gcc.dg/vect/pr79887.c  -mmsa (internal compiler error) starting with r261740)

2018-06-25  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/86304
	* tree-vectorizer.c (vectorize_loops): Walk over new possibly
	epilogue-if-converted loops as well.

From-SVN: r262017