r151320 - in /trunk/gcc: ChangeLog builtins.c t...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Wed Sep  2 11:58:27 2009
New Revision: 151320

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=151320
Log:
2009-09-02  Richard Guenther  <rguenther@suse.de>

        Revert
        2009-08-31  Richard Guenther  <rguenther@suse.de>

        * builtins.c (fold_builtin_memory_op): Use the alias oracle
        to query if the memory regions for memmove overlap.
        * tree-ssa-alias.c (ptr_deref_may_alias_decl_p): Relax the
        asserts on pointers, instead deal with odd trees.
        (ptr_derefs_may_alias_p): Likewise.
        (refs_may_alias_p_1): Constructor bases also never alias.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/builtins.c
    trunk/gcc/tree-ssa-alias.c