[Bug rtl-optimization/33148] [4.2 Regresion] ICE in trunc_int_for_mode, at explow.c:56 during combine

[jakub at gcc dot gnu dot org]

------- Comment #7 from jakub at gcc dot gnu dot org  2007-08-31 07:27 -------
Subject: Bug 33148

Author: jakub
Date: Fri Aug 31 07:27:40 2007
New Revision: 127959

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=127959
Log:
        PR rtl-optimization/33148
        * simplify-rtx.c (simplify_unary_operation_1): Only optimize
        (neg (lt X 0)) if X has scalar int mode.

        * gcc.c-torture/compile/20070827-1.c: New test.

Added:
    branches/gcc-4_2-branch/gcc/testsuite/gcc.c-torture/compile/20070827-1.c
Modified:
    branches/gcc-4_2-branch/gcc/ChangeLog
    branches/gcc-4_2-branch/gcc/simplify-rtx.c
    branches/gcc-4_2-branch/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33148