[Bug fortran/32160] New: ice for legal fortran code with -O3

[dcb314 at hotmail dot com]

I just tried to compile Fortran package LAPACK with the
GNU Fortran compiler version 4.3 snapshot 20070525

The compiler said

/home/dcb/gcc/20070525/results/bin/gfortran -g -O3 -Wall -c clanht.f -o
clanht.o
clanht.f: In function 'clanht':
clanht.f:1: error: found a virtual definition for a GIMPLE register
PHI argument
D.1410_62
for PHI node
e__I_lsm0.52_95 = PHI <D.1410_62(21), e__I_lsm0.52_94(25)>
clanht.f:1: internal compiler error: verify_ssa failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

Source code attached. Flag -O3 required.


-- 
           Summary: ice for legal fortran code with -O3
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dcb314 at hotmail dot com
  GCC host triplet: x86_sue-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32160