[Bug tree-optimization/35231] [4.3 Regression] VRP miscompiles libX11

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2008-02-17 14:01 -------
Subject: Bug 35231

Author: rguenth
Date: Sun Feb 17 14:00:48 2008
New Revision: 132378

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=132378
Log:
2008-02-17  Richard Guenther  <[EMAIL PROTECTED]>

        PR tree-optimization/35231
        * tree-vrp.c (register_edge_assert_for): Do not assume A == 0
        if A | B != 1.

        * gcc.c-torture/execute/pr35231.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr35231.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35231