[Bug tree-optimization/21030] New: ICE in set_value_range building 176.gcc with -O2

["janis at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

Mainline GCC for powerpc-linux gets an ICE compiling 176.gcc from SPEC
CPU2000 with -O2, as shown with this minimized test case:
                                                                                
elm3b149% /home/janis/tools/gcc-mline-20050414/bin/gcc -O2 -c bug.c
bug.c: In function ?schedule_unit?:
bug.c:5: internal compiler error: in set_value_range, at tree-vrp.c:124
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
                                                                                
That abort is in checking code added on 2005-04-09 by dnovillo.

-- 
           Summary: ICE in set_value_range building 176.gcc with -O2
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: janis at gcc dot gnu dot org
                CC: dnovillo at gcc dot gnu dot org,gcc-bugs at gcc dot gnu
                    dot org
 GCC build triplet: powerpc-linux
  GCC host triplet: powerpc-linux
GCC target triplet: powerpc-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21030