[Bug fortran/93832] New: [8/9/10 Regression] ICE in gfc_convert_to_structure_constructor, at fortran/primary.c:3100

[gscfq@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93832

            Bug ID: 93832
           Summary: [8/9/10 Regression] ICE in
                    gfc_convert_to_structure_constructor, at
                    fortran/primary.c:3100
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gscfq@t-online.de
  Target Milestone: ---

Started to ICE with gfortran-8 before 20180525 :


$ cat z1.f90
program p
   type t
      character :: a
      integer :: b
      integer :: c(t(1))
   end type
   type(t) :: z = t('a', 2, [3])
end


$ gfortran-7 -c z1.f90   # error message doubled
z1.f90:5:19:

       integer :: c(t(1))
                   1
Error: No initializer for component 'b' given in the structure constructor at
(1)!
z1.f90:5:19:

       integer :: c(t(1))
                   1
Error: No initializer for component 'b' given in the structure constructor at
(1)!


$ gfortran-10-20200216 -c z1.f90
f951: internal compiler error: Segmentation fault
0xbae76f crash_signal
        ../../gcc/toplev.c:328
0x6aea05 gfc_convert_to_structure_constructor(gfc_expr*, gfc_symbol*,
gfc_expr**, gfc_actual_arglist**, bool)
        ../../gcc/fortran/primary.c:3100
0x6c27a1 resolve_generic_f
        ../../gcc/fortran/resolve.c:2723
0x6c27a1 resolve_function
        ../../gcc/fortran/resolve.c:3230
0x6c27a1 gfc_resolve_expr(gfc_expr*)
        ../../gcc/fortran/resolve.c:7000
0x61a724 resolve_array_bound
        ../../gcc/fortran/array.c:378
0x61b396 gfc_resolve_array_spec(gfc_array_spec*, int)
        ../../gcc/fortran/array.c:422
0x6be945 resolve_component
        ../../gcc/fortran/resolve.c:14576
0x6bf4c2 resolve_fl_derived0
        ../../gcc/fortran/resolve.c:14695
0x6bfb07 resolve_fl_derived0
        ../../gcc/fortran/resolve.c:14782
0x6bfb07 resolve_fl_derived
        ../../gcc/fortran/resolve.c:14824
0x6bbf6f resolve_symbol
        ../../gcc/fortran/resolve.c:15198
0x6df9f2 do_traverse_symtree
        ../../gcc/fortran/symbol.c:4147
0x6b7754 resolve_types
        ../../gcc/fortran/resolve.c:17122
0x6bb50c gfc_resolve(gfc_namespace*)
        ../../gcc/fortran/resolve.c:17237
0x6a987c resolve_all_program_units
        ../../gcc/fortran/parse.c:6245
0x6a987c gfc_parse_file()
        ../../gcc/fortran/parse.c:6492
0x6f44ff gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:210