[Bug fortran/77872] New: ICE in gfc_conv_descriptor_token, at fortran/trans-array.c:305

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77872

            Bug ID: 77872
           Summary: ICE in gfc_conv_descriptor_token, at
                    fortran/trans-array.c:305
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gerhard.steinmetz.fortran@t-online.de
  Target Milestone: ---

Affects versions 5, 6 and 7. No ICE with 4.9.0.


$ cat z1.f90
module m
   type, abstract :: t
   contains
      procedure(s), pass, deferred :: f
   end type
contains
   subroutine s(x)
      class(t) :: x[*]
      call x%f()
   end
end


$ gfortran-7-20161002 -fcoarray=single -c z1.f90
$ gfortran-7-20161002 -fcoarray=lib -c z1.f90
z1.f90:9:0:

       call x%f()

internal compiler error: in gfc_conv_descriptor_token, at
fortran/trans-array.c:305
0x72afed gfc_conv_descriptor_token(tree_node*)
        ../../gcc/fortran/trans-array.c:303
0x75fece gfc_conv_procedure_call(gfc_se*, gfc_symbol*, gfc_actual_arglist*,
gfc_expr*, vec<tree_node*, va_gc, vl_embed>*)
        ../../gcc/fortran/trans-expr.c:5804
0x7a4dc4 gfc_trans_call(gfc_code*, bool, tree_node*, tree_node*, bool)
        ../../gcc/fortran/trans-stmt.c:407
0x7243fa trans_code
        ../../gcc/fortran/trans.c:1787
0x7538f8 gfc_generate_function_code(gfc_namespace*)
        ../../gcc/fortran/trans-decl.c:6257
0x728a49 gfc_generate_module_code(gfc_namespace*)
        ../../gcc/fortran/trans.c:2088
0x6de19d translate_all_program_units
        ../../gcc/fortran/parse.c:5927
0x6de19d gfc_parse_file()
        ../../gcc/fortran/parse.c:6146
0x720e82 gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:198