[Bug fortran/43895] New: [fortran-dev] internal compiler error: verify_ssa failed

[sfilippone at uniroma2 dot it]

The attached code produces the subject message, but only with optimization; at
-O0 it works. 
------ behaviour ----------
[sfilippo@localhost bug14]$ gfortran -v
Using built-in specs.
COLLECT_GCC=gfortran
COLLECT_LTO_WRAPPER=/home/local/gnudev/bin/../libexec/gcc/i686-pc-linux-gnu/4.6.0/lto-wrapper
Target: i686-pc-linux-gnu
Configured with: ../fortran-dev/configure --prefix=/usr/local/gnudev
--enable-languages=c,c++,fortran : (reconfigured) ../fortran-dev/configure
--prefix=/usr/local/gnudev --enable-languages=c,c++,fortran,lto --no-create
--no-recursion : (reconfigured) ../fortran-dev/configure
--prefix=/usr/local/gnudev --enable-languages=c,c++,fortran,lto --no-create
--no-recursion : (reconfigured) ../fortran-dev/configure
--prefix=/usr/local/gnudev --enable-languages=c,c++,fortran,lto --no-create
--no-recursion : (reconfigured) ../fortran-dev/configure
--prefix=/usr/local/gnudev --enable-languages=c,c++,fortran,lto --no-create
--no-recursion : (reconfigured) ../fortran-dev/configure
--prefix=/usr/local/gnudev --enable-languages=c,c++,fortran,lto --no-create
--no-recursion : (reconfigured) ../fortran-dev/configure
--prefix=/usr/local/gnudev --enable-languages=c,c++,fortran,lto --no-create
--no-recursion
Thread model: posix
gcc version 4.6.0 20100421 (experimental) (GCC) 
[sfilippo@localhost bug14]$ gfortran  -O1  -c bug14.f90
bug14.f90: In function ‘bug14’:
bug14.f90:30:0: error: statement makes a memory store, but has no VDEFS
a_4.a.$data = 0B;
bug14.f90:30:0: internal compiler error: verify_ssa failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
[sfilippo@localhost bug14]$ gfortran  -O0  -c bug14.f90
[sfilippo@localhost bug14]$


-- 
           Summary: [fortran-dev] internal compiler error: verify_ssa failed
           Product: gcc
           Version: fortran-dev
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: sfilippone at uniroma2 dot it
 GCC build triplet:  i686-pc-linux-gnu
  GCC host triplet:  i686-pc-linux-gnu
GCC target triplet:  i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43895