[Bug tree-optimization/31797] [4.2/4.3 Regression] infinite loop in tree-ssa-pre or ICE

[rguenth at gcc dot gnu dot org]

------- Comment #19 from rguenth at gcc dot gnu dot org  2007-05-12 18:19 -------
Subject: Bug 31797

Author: rguenth
Date: Sat May 12 17:19:25 2007
New Revision: 124636

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=124636
Log:
2007-05-12  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/31797
        * tree-ssa-forwprop.c (forward_propagate_addr_expr): Do not
        propagate into a stmt that has volatile ops.

        * gcc.c-torture/compile/pr31797.c: New testcase.

Added:
    branches/gcc-4_2-branch/gcc/testsuite/gcc.c-torture/compile/pr31797.c
Modified:
    branches/gcc-4_2-branch/gcc/ChangeLog
    branches/gcc-4_2-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_2-branch/gcc/tree-ssa-forwprop.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31797