https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65660
--- Comment #15 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Tue Apr 7 13:40:24 2015 New Revision: 221895 URL: https://gcc.gnu.org/viewcvs?rev=221895&root=gcc&view=rev Log: 2015-04-07 Richard Biener <rguent...@suse.de> Backport from mainline 2015-04-04 Richard Biener <rguent...@suse.de> PR tree-optimization/64909 PR tree-optimization/65660 * tree-vectorizer.h (vect_get_known_peeling_cost): Adjust to take a cost vector for scalar iteration cost. (vect_get_single_scalar_iteration_cost): Likewise. * tree-vect-loop.c (vect_get_single_scalar_iteration_cost): Compute the scalar iteration cost into a cost vector. (vect_get_known_peeling_cost): Use the scalar cost vector to account for the cost of the peeled iterations. (vect_estimate_min_profitable_iters): Likewise. * tree-vect-data-refs.c (vect_peeling_hash_get_lowest_cost): Likewise. Modified: branches/gcc-4_9-branch/gcc/ChangeLog branches/gcc-4_9-branch/gcc/tree-vect-data-refs.c branches/gcc-4_9-branch/gcc/tree-vect-loop.c branches/gcc-4_9-branch/gcc/tree-vectorizer.h