https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66917
--- Comment #21 from ctice at gcc dot gnu.org --- Author: ctice Date: Thu Sep 24 20:56:29 2015 New Revision: 228099 URL: https://gcc.gnu.org/viewcvs?rev=228099&root=gcc&view=rev Log: Backport r226487 from GCC FSF mainline: r226487 | rguenth | 2015-08-03 00:13:36 -0700 (Mon, 03 Aug 2015) | 15 lines 2015-08-03 Richard Biener <rguent...@suse.de> PR tree-optimization/66917 * tree-vectorizer.h (struct dataref_aux): Add base_element_aligned field. (DR_VECT_AUX): New macro. (set_dr_misalignment): Adjust. (dr_misalignment): Likewise. * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Compute whether the base is at least element aligned. * tree-vect-stmts.c (ensure_base_align): Adjust. (vectorizable_store): If the base is not element aligned preserve alignment of the original access if misalignment is unknown. (vectorizable_load): Likewise. Modified: branches/google/gcc-4_9-mobile/gcc/tree-vect-data-refs.c branches/google/gcc-4_9-mobile/gcc/tree-vect-stmts.c branches/google/gcc-4_9-mobile/gcc/tree-vectorizer.h
