[Bug tree-optimization/35833] [4.3 Regression] Wrong code generated with -ftree-vrp

[rguenth at gcc dot gnu dot org]

------- Comment #6 from rguenth at gcc dot gnu dot org  2008-04-08 22:09 -------
Subject: Bug 35833

Author: rguenth
Date: Tue Apr  8 22:07:20 2008
New Revision: 134111

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=134111
Log:
2008-04-05  Richard Guenther  <rguenther@suse.de>

        PR tree-optimization/35833
        * tree-vrp.c (operand_less_p): Deal with non-INTEGER_CST
        results from fold_binary_to_constant.
        (compare_values_warnv): Likewise.

        * gcc.dg/torture/pr35833.c: New testcase.

Added:
    branches/gcc-4_2-branch/gcc/testsuite/gcc.c-torture/execute/20080408-1.c
      - copied unchanged from r134108,
trunk/gcc/testsuite/gcc.c-torture/execute/20080408-1.c
Modified:
    branches/gcc-4_2-branch/gcc/ChangeLog
    branches/gcc-4_2-branch/gcc/fold-const.c
    branches/gcc-4_2-branch/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35833