[Bug tree-optimization/20947] New: ICE in check_loop_closed_ssa_use, at tree-ssa-loop-manip.c:394

["micis at gmx dot de" <gcc-bugzilla at gcc dot gnu dot org>]

When I compile GSL 1.5 with the actual snapshot of gcc41 (gcc-4.1-20050410) I 
get an ICE:

gcc41 -O2 -fpeel-loops -ftree-vectorize -c permute.i -o permute.o
permute_source.c: In function 'gsl_permute_complex_inverse':
permute_source.c:87: internal compiler error: in check_loop_closed_ssa_use, at 
tree-ssa-loop-manip.c:394
Please submit a full bug report, with preprocessed source if appropriate.

gcc41 -v
Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc-4.1-20050410/configure --prefix=/usr/local/gcc41g --
program-suffix=41g --with-arch=opteron --enable-languages=c,c++ --enable-
checking
Thread model: posix
gcc version 4.1.0 20050410 (experimental)


This ICE doesn't occur at -O1 or with snapshot gcc-4.1-20050403.


Michael Cieslinski

-- 
           Summary: ICE in check_loop_closed_ssa_use, at tree-ssa-loop-
                    manip.c:394
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: micis at gmx dot de
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: x86_64-unknown-linux-gnu
  GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20947