[Bug middle-end/38934] [4.3 Regression] ICE in set_value_range, at tree-vrp.c:398

[rguenth at gcc dot gnu dot org]

------- Comment #23 from rguenth at gcc dot gnu dot org  2009-07-10 16:00 
-------
Subject: Bug 38934

Author: rguenth
Date: Fri Jul 10 16:00:13 2009
New Revision: 149486

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=149486
Log:
2009-07-10  Richard Guenther  <rguent...@suse.de>

        Backport from mainline
        2009-01-28  Jakub Jelinek  <ja...@redhat.com>

        PR middle-end/38934
        * tree-vrp.c (extract_range_from_assert): For LE_EXPR and LT_EXPR
        set to varying whenever max has TREE_OVERFLOW set, similarly
        for GE_EXPR and GT_EXPR and TREE_OVERFLOW min.

        * gcc.dg/pr38934.c: New test.

Added:
    branches/gcc-4_3-branch/gcc/testsuite/gcc.dg/pr38934.c
Modified:
    branches/gcc-4_3-branch/gcc/ChangeLog
    branches/gcc-4_3-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_3-branch/gcc/tree-vrp.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38934