[Bug fortran/25660] New: internal error at nullifying in invalid code

["iguchi at coral dot t dot u-tokyo dot ac dot jp" <gcc-bugzilla at gcc dot gnu dot org>]

I got a following internal error.

$ gfortran --version
GNU Fortran 95 (GCC) 4.2.0 20051216 (experimental)
Copyright (C) 2005 Free Software Foundation, Inc.

GNU Fortran comes with NO WARRANTY, to the extent permitted by law.
You may redistribute copies of GNU Fortran
under the terms of the GNU General Public License.
For more information about these matters, see the file named COPYING

$ cat ie.f90
nullify(i%e)
end program

$ gfortrran ie.f90
*** malloc[7950]: Deallocation of a pointer not malloced: 0x6337f0; This could
be a double free(), or free() called with the middle of an allocated block; Try
setting environment variable MallocHelp to see tools to help debug
 In file ie.f90:1

nullify(i%e)
1
 Internal Error at (1):
 free_expr0(): Bad expr type


-- 
           Summary: internal error at nullifying in invalid code
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: iguchi at coral dot t dot u-tokyo dot ac dot jp


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25660