[Bug tree-optimization/56812] Simple loop is not SLP-vectorized after r196872

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56812

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> 2013-04-03 08:04:16 UTC ---
Author: rguenth
Date: Wed Apr  3 08:03:33 2013
New Revision: 197390

URL: http://gcc.gnu.org/viewcvs?rev=197390&root=gcc&view=rev
Log:
2013-04-03  Richard Biener  <rguenther@suse.de>

    PR tree-optimization/56812
    * tree-vect-data-refs.c (vect_slp_analyze_data_ref_dependence):
    DRs of the same interleaving chain are independent.

    * g++.dg/vect/slp-pr56812.cc: New testcase.

Added:
    trunk/gcc/testsuite/g++.dg/vect/slp-pr56812.cc
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-data-refs.c