[Bug fortran/83078] New: ICE in gfc_typenode_for_spec, at fortran/trans-types.c:1110

[gscfq@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83078

            Bug ID: 83078
           Summary: ICE in gfc_typenode_for_spec, at
                    fortran/trans-types.c:1110
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gscfq@t-online.de
  Target Milestone: ---

With an undefined value "n" :

$ cat z1.f90
program p
   implicit none
   type t
      integer :: a(n)
   end type t
   type(t) :: x = t([1, 2])
end


$ gfortran-8-20171119 -c z1.f90
z1.f90:1:0:

 program p

internal compiler error: in gfc_typenode_for_spec, at
fortran/trans-types.c:1110
0x7a9ee3 gfc_typenode_for_spec(gfc_typespec*, int)
        ../../gcc/fortran/trans-types.c:1110
0x7aa22a gfc_sym_type(gfc_symbol*)
        ../../gcc/fortran/trans-types.c:2213
0x755974 gfc_get_symbol_decl(gfc_symbol*)
        ../../gcc/fortran/trans-decl.c:1716
0x7589c7 generate_local_decl
        ../../gcc/fortran/trans-decl.c:5525
0x71d9ab do_traverse_symtree
        ../../gcc/fortran/symbol.c:4157
0x759622 generate_local_vars
        ../../gcc/fortran/trans-decl.c:5725
0x759622 gfc_generate_function_code(gfc_namespace*)
        ../../gcc/fortran/trans-decl.c:6372
0x6eb720 translate_all_program_units
        ../../gcc/fortran/parse.c:6091
0x6eb720 gfc_parse_file()
        ../../gcc/fortran/parse.c:6294
0x72ff5f gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:204