[Bug tree-optimization/40321] [4.4/4.5 Regression] internal compiler error: in compute_antic, at tree-ssa-pre.c:2501

["rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #27 from rguenth at gcc dot gnu dot org  2009-07-17 12:44 -------
Subject: Bug 40321

Author: rguenth
Date: Fri Jul 17 12:44:05 2009
New Revision: 149744

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=149744
Log:
2009-07-17  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/40321
        * tree-ssa-pre.c (add_to_exp_gen): Also add names defined by
        PHI nodes to the maximal set.
        (make_values_for_phi): Add PHI arguments to the maximal set.
        (execute_pre): Dump PHI_GEN and the maximal set.

        * gcc.c-torture/compile/pr40321.c: New testcase.
        * g++.dg/torture/pr40321.C: Likewise.

Added:
    trunk/gcc/testsuite/g++.dg/torture/pr40321.C
    trunk/gcc/testsuite/gcc.c-torture/compile/pr40321.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-pre.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40321