[Bug tree-optimization/49645] [4.7 regression] g++.dg/tree-ssa/pr8781.C FAILs on Tru64 UNIX

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49645

--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-07-06 14:05:57 UTC ---
Author: rguenth
Date: Wed Jul  6 14:05:54 2011
New Revision: 175916

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175916
Log:
2011-07-06  Richard Guenther  <rguenther@suse.de>

    PR tree-optimization/49645
    * c-decl.c (finish_decl): Also set DECL_HARD_REGISTER for global
    register variables.
    * tree-ssa-sccvn.c (vn_reference_op_eq): Disregard differences
    in type qualification here ...
    (copy_reference_ops_from_ref): ... not here.
    (vn_reference_lookup_3): ... or here.
    (copy_reference_ops_from_ref): Record decl bases as MEM[&decl].
    (vn_reference_lookup): Do the lookup with a valueized ao-ref.

    * g++.dg/tree-ssa/pr8781.C: Disable SRA.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c-decl.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/g++.dg/tree-ssa/pr8781.C
    trunk/gcc/tree-ssa-sccvn.c