[Bug tree-optimization/64365] [4.9/5 Regression] Predictive commoning after loop vectorization produces incorrect code.

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64365

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Jan 15 08:41:08 2015
New Revision: 219634

URL: https://gcc.gnu.org/viewcvs?rev=219634&root=gcc&view=rev
Log:
2015-01-15  Richard Biener  <rguenther@suse.de>

    PR middle-end/64365
    * tree-data-ref.c (dr_analyze_indices): Make sure that accesses
    for MEM_REF access functions with the same base can never partially
    overlap.

    * gcc.dg/torture/pr64365.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr64365.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-data-ref.c