[Bug tree-optimization/43629] [4.3/4.4 Regression] Struct to register optimization fails

[rguenth at gcc dot gnu dot org]

------- Comment #11 from rguenth at gcc dot gnu dot org  2010-04-07 15:41 -------
Subject: Bug 43629

Author: rguenth
Date: Wed Apr  7 15:40:43 2010
New Revision: 158070

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=158070
Log:
2010-04-07  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/43629
        * tree-ssa-ccp.c (likely_value): Properly look for constant
        values.  Reset all_undefined_operands if we have seen a
        constant value.

        * gcc.c-torture/execute/pr43629.c: New testcase.

Added:
    branches/gcc-4_4-branch/gcc/testsuite/gcc.c-torture/execute/pr43629.c
Modified:
    branches/gcc-4_4-branch/gcc/ChangeLog
    branches/gcc-4_4-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_4-branch/gcc/tree-ssa-ccp.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43629