[Bug tree-optimization/44913] [4.6 Regression] -ftree-vectorize causes FAIL: gcc.dg/pr44838.c execution test

["rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44913

--- Comment #4 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-10-14 15:51:22 UTC ---
Author: rguenth
Date: Thu Oct 14 15:51:15 2010
New Revision: 165473

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=165473
Log:
2010-10-14  Richard Guenther  <rguenther@suse.de>

    PR tree-optimization/44913
    * tree-data-ref.c (disjoint_objects_p): Remove.
    (dr_may_alias_p): Simplify.  Only hand the base object to
    the alias-oracle.
    * tree-ssa-alias.c (ptr_deref_may_alias_decl_p): Handle
    some more trees, bail out instead of asserting.
    (ptr_derefs_may_alias_p): Likewise.  Export.
    (refs_may_alias_p_1): Handle STRING_CSTs.
    * tree-ssa-alias.h (ptr_derefs_may_alias_p): Declare.

    * gcc.dg/torture/pr44913.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr44913.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-data-ref.c
    trunk/gcc/tree-ssa-alias.c
    trunk/gcc/tree-ssa-alias.h