[Bug tree-optimization/70130] [6 Regression] h264ref fails with verification error starting with r231674 (r224221 is the true start of the problem)

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70130

--- Comment #30 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Apr 15 07:28:44 2016
New Revision: 235006

URL: https://gcc.gnu.org/viewcvs?rev=235006&root=gcc&view=rev
Log:
2016-04-15  Richard Biener  <rguenther@suse.de>
        Alan Modra  <amodra@gmail.com>

        PR tree-optimization/70130
        * tree-vect-data-refs.c (vect_supportable_dr_alignment): Detect
        when alignment stays not the same and no not use the realign
        scheme then.

        * gcc.dg/vect/O3-pr70130.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/vect/O3-pr70130.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-data-refs.c