[Bug tree-optimization/41919] [4.5 Regression] optimized code with -O2 or -O3 gives strange result

[rguenth at gcc dot gnu dot org]

------- Comment #5 from rguenth at gcc dot gnu dot org  2009-11-04 10:18 -------
Subject: Bug 41919

Author: rguenth
Date: Wed Nov  4 10:18:33 2009
New Revision: 153891

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=153891
Log:
2009-11-04  Richard Guenther  <rguent...@suse.de>

        PR tree-optimization/41919
        * tree-vrp.c (test_for_singularity): Properly compare values.

        * gcc.c-torture/execute/pr41919.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/pr41919.c
Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41919