[Bug tree-optimization/50698] pretending to create versioning for alias when not required

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50698

--- Comment #4 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-10-13 
09:00:17 UTC ---
Author: rguenth
Date: Thu Oct 13 09:00:01 2011
New Revision: 179895

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=179895
Log:
2011-10-13  Richard Guenther  <rguent...@suse.de>

    PR tree-optimization/50698
    * tree-data-ref.c (split_constant_offset_1): Also process
    offsets of &MEM.

    * g++.dg/vect/pr50698.cc: New testcase.

Added:
    trunk/gcc/testsuite/g++.dg/vect/pr50698.cc
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-data-ref.c