[Bug tree-optimization/59354] [4.8/4.9/5 Regression] Element swizzling produces invalid result with -O3

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59354

--- Comment #13 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Jan 14 14:06:07 2015
New Revision: 219603

URL: https://gcc.gnu.org/viewcvs?rev=219603&root=gcc&view=rev
Log:
2015-01-14  Richard Biener  <rguenther@suse.de>

    PR tree-optimization/59354
    * tree-vect-slp.c (vect_build_slp_tree_1): Treat loads from
    groups larger than the slp group size as having gaps.

    * gcc.dg/vect/pr59354.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/vect/pr59354.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-slp.c