[Bug middle-end/66253] [6 Regression] 459.GemsFDTD in SPEC CPU 2006 is miscompiled

[matz at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66253

--- Comment #8 from Michael Matz <matz at gcc dot gnu.org> ---
Author: matz
Date: Thu Jun 18 13:31:17 2015
New Revision: 224605

URL: https://gcc.gnu.org/viewcvs?rev=224605&root=gcc&view=rev
Log:
        PR middle-end/66253
        * tree-vect-stmts.c (vectorizable_store): Implement non-SLP
        grouped strided stores.
        (vectorizable_load): Don't use the DR from first_stmt in
        the non-SLP grouped strided case.

testsuite/
        * gcc.dg/vect/pr66253.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/vect/pr66253.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-stmts.c