https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100253
--- Comment #10 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-10 branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:92ffe7c3b6ffee8fd6ef92a5b3b4cc09263b01ee commit r10-10260-g92ffe7c3b6ffee8fd6ef92a5b3b4cc09263b01ee Author: Richard Biener <rguent...@suse.de> Date: Thu Apr 29 11:52:08 2021 +0200 tree-optimization/100253 - fix bogus aligned vectorized loads/stores At some point DR_MISALIGNMENT was supposed to be -1 when the access was not element aligned. That's obviously not true at this point so this adjusts both store and load vectorizing to no longer assume this which in turn allows simplifying the code. 2021-04-29 Richard Biener <rguent...@suse.de> PR tree-optimization/100253 * tree-vect-stmts.c (vectorizable_load): Do not assume element alignment when DR_MISALIGNMENT is -1. (vectorizable_store): Likewise. * g++.dg/pr100253.C: New testcase.
