[Bug tree-optimization/32604] [4.3 regression] miscompilation at -O2

[dberlin at gcc dot gnu dot org]

------- Comment #7 from dberlin at gcc dot gnu dot org  2007-07-04 22:11 -------
Subject: Bug 32604

Author: dberlin
Date: Wed Jul  4 22:11:14 2007
New Revision: 126338

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=126338
Log:
2007-07-04  Daniel Berlin  <dberlin@dberlin.org>

        PR tree-optimization/32604
        PR tree-optimization/32606

        * tree-ssa-pre.c (bb_bitmap_sets): Removed antic_safe_loads.
        (compute_antic_safe): Removed.
        (ANTIC_SAFE_LOADS): Ditto.
        (compute_antic_aux): Don't print ANTIC_SAFE_LOADS.
        (execute_pre): Don't call compute_antic_safe.
        (vuse_equiv): New function.
        (make_values_for_stmt): Use it
        * tree-ssa-sccvn.c (set_ssa_val_to): Remove assert, since it is
        not always true.


Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/pr32606.c
    trunk/gcc/testsuite/gfortran.fortran-torture/execute/pr32604.f90
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-pre.c
    trunk/gcc/tree-ssa-sccvn.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32604