[Bug middle-end/38932] [4.3/4.4 Regression] ICE in set_value_range, at tree-vrp.c:398

[bonzini at gcc dot gnu dot org]

------- Comment #12 from bonzini at gnu dot org  2009-01-23 15:57 -------
Subject: Bug 38932

Author: bonzini
Date: Fri Jan 23 15:57:19 2009
New Revision: 143588

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=143588
Log:
2008-01-23  Paolo Bonzini  <bonzini@gnu.org>

        PR tree-optimization/38932
        * fold-const.c (fold_unary_no_overflow): New.
        * tree.h (fold_unary_no_overflow): Declare.
        * tree-ssa-ccp.c (ccp_fold): Use fold_unary_no_overflow.
        * tree-ssa-sccvn.c (visit_reference_op_load,
        simplify_unary_expression): Likewise.

testsuite:
2008-01-23  Paolo Bonzini  <bonzini@gnu.org>

        PR tree-optimization/38932
        * gcc.dg/pr38932.c: New.


Added:
    trunk/gcc/testsuite/gcc.dg/pr38932.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/fold-const.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-ccp.c
    trunk/gcc/tree-ssa-sccvn.c
    trunk/gcc/tree.h


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38932