[Bug fortran/69398] New: ICE on class with duplicate dimension attribute specified

[gerhard.steinmetz.fortran@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69398

            Bug ID: 69398
           Summary: ICE on class with duplicate dimension attribute
                    specified
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gerhard.steinmetz.fortran@t-online.de
  Target Milestone: ---

With duplicate dimension attribute specified :

$ cat z1.f90
program p
   type t
   end type
   class(t), allocatable :: z(:)
   target :: z(:)
   allocate (z(2))
end


$ gfortran-5.3.1 -c z1.f90
z1.f90:1:0:

 program p
 1
internal compiler error: in gfc_is_nodesc_array, at fortran/trans-types.c:1309


$ gfortran-6.0.0 -c z1.f90
...
internal compiler error: in gfc_conv_component_ref, at
fortran/trans-expr.c:2295


$ gfortran-4.9.0 -c z1.f90
...
z1.f90:1:0: internal compiler error: in gfc_is_nodesc_array, at
fortran/trans-types.c:1291