r125031 - in /branches/gcc-pre-vn/gcc: testsuit...

[dberlin@gcc.gnu.org]

Author: dberlin
Date: Thu May 24 16:23:49 2007
New Revision: 125031

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=125031
Log:
Fixup comments about FOR_EACH_SSA_VDEF_OPERAND to be in accord with reality.
Make seeing through stores and value numbering of stores work in all cases.
Add some testcases to verify.

Added:
    branches/gcc-pre-vn/gcc/testsuite/gcc.dg/tree-ssa/ssa-sccvn-3.c
    branches/gcc-pre-vn/gcc/testsuite/gcc.dg/tree-ssa/ssa-sccvn-4.c
Modified:
    branches/gcc-pre-vn/gcc/testsuite/gcc.dg/tree-ssa/ssa-sccvn-2.c
    branches/gcc-pre-vn/gcc/tree-ssa-operands.h
    branches/gcc-pre-vn/gcc/tree-ssa-sccvn.c