[Bug fortran/105152] New: [9/10/11/12 Regression] ICE in gfc_conv_gfc_desc_to_cfi_desc, at fortran/trans-expr.cc:5647

[gscfq--- via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105152

            Bug ID: 105152
           Summary: [9/10/11/12 Regression] ICE in
                    gfc_conv_gfc_desc_to_cfi_desc, at
                    fortran/trans-expr.cc:5647
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gs...@t-online.de
  Target Milestone: ---

Started with r9 :


$ cat z1.f90
program p
   use iso_c_binding
   type, bind(c) :: t
      integer(c_int) :: a
   end type
   interface
      function f(x) bind(c) result(z)
         import :: c_int, t
         type(t) :: x(:)
         integer(c_int) :: z
      end
   end interface
   class(*), allocatable :: y(:)
   n = f(y)
end


$ cat z2.f90
program p
   use iso_c_binding
   type, bind(c) :: t
      integer(c_int) :: a
   end type
   class(*), allocatable :: y(:)
   n = f(y)
contains
   function f(x) bind(c) result(z)
      type(t) :: x(:)
      integer(c_int) :: z
   end
end


$ gfortran-8 -c z1.f90
$
$ gfortran-12-20220403 -c z1.f90
z1.f90:14:11:

   14 |    n = f(y)
      |           1
internal compiler error: in gfc_conv_gfc_desc_to_cfi_desc, at
fortran/trans-expr.cc:5647
0x7e2e52 gfc_conv_gfc_desc_to_cfi_desc
        ../../gcc/fortran/trans-expr.cc:5647
0x7e7042 gfc_conv_procedure_call(gfc_se*, gfc_symbol*, gfc_actual_arglist*,
gfc_expr*, vec<tree_node*, va_gc, vl_embed>*)
        ../../gcc/fortran/trans-expr.cc:6811
0x7dc7ba gfc_conv_expr(gfc_se*, gfc_expr*)
        ../../gcc/fortran/trans-expr.cc:9405
0x7edae1 gfc_trans_assignment_1
        ../../gcc/fortran/trans-expr.cc:11693
0x7ab6c7 trans_code
        ../../gcc/fortran/trans.cc:1916
0x7d4b7e gfc_generate_function_code(gfc_namespace*)
        ../../gcc/fortran/trans-decl.cc:7654
0x75734e translate_all_program_units
        ../../gcc/fortran/parse.cc:6669
0x75734e gfc_parse_file()
        ../../gcc/fortran/parse.cc:6956
0x7a47df gfc_be_parse_file
        ../../gcc/fortran/f95-lang.cc:216