[Bug middle-end/42577] [4.4/4.5 Regression] array bounds false positive with -O3, goes away with -O2

[rguenth at gcc dot gnu dot org]

------- Comment #6 from rguenth at gcc dot gnu dot org  2010-01-02 19:15 -------
Subject: Bug 42577

Author: rguenth
Date: Sat Jan  2 19:14:52 2010
New Revision: 155577

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=155577
Log:
2010-01-02  Richard Guenther  <rguent...@suse.de>

        PR middle-end/42577
        * tree-vrp.c (check_all_array_refs): Skip non-excutable blocks.
        (simplify_switch_using_ranges): Mark to be removed edges
        as non-executable.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-vrp.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42577