[Bug fortran/104130] New: [12 Regression] ICE in gfc_add_class_array_ref, at fortran/class.c:274

["gscfq@t-online.de" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104130

            Bug ID: 104130
           Summary: [12 Regression] ICE in gfc_add_class_array_ref, at
                    fortran/class.c:274
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gscfq@t-online.de
  Target Milestone: ---

Changed between 20211017 and 20211024 :


$ cat z1.f90
program p
   class(*), pointer :: z(:,:)
   call s(transpose(z))
contains
   subroutine s(x) bind(c)
      integer, contiguous :: x(:,:)
   end
end


$ gfortran-12-20211017 -c z1.f90
$
$ gfortran-12-20220116 -c z1.f90
z1.f90:3:23:

    3 |    call s(transpose(z))
      |                       1
internal compiler error: Segmentation fault
0xcc359f crash_signal
        ../../gcc/toplev.c:322
0x6cc528 gfc_add_class_array_ref(gfc_expr*)
        ../../gcc/fortran/class.c:274
0x7f79bf gfc_conv_is_contiguous_expr(gfc_se*, gfc_expr*)
        ../../gcc/fortran/trans-intrinsic.c:2864
0x7db247 gfc_conv_subref_array_arg(gfc_se*, gfc_expr*, int, sym_intent, bool,
gfc_symbol const*, char const*, gfc_symbol*, bool)
        ../../gcc/fortran/trans-expr.c:5244
0x7db611 gfc_conv_gfc_desc_to_cfi_desc
        ../../gcc/fortran/trans-expr.c:5553
0x7e09b2 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:6804
0x81d120 gfc_trans_call(gfc_code*, bool, tree_node*, tree_node*, bool)
        ../../gcc/fortran/trans-stmt.c:422
0x7a55f8 trans_code
        ../../gcc/fortran/trans.c:1984
0x7ce56e gfc_generate_function_code(gfc_namespace*)
        ../../gcc/fortran/trans-decl.c:7651
0x7513ce translate_all_program_units
        ../../gcc/fortran/parse.c:6651
0x7513ce gfc_parse_file()
        ../../gcc/fortran/parse.c:6938
0x79e33f gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:216