[Bug fortran/101100] New: [9/10/11/12 Regression] ICE in trans_caf_token_assign, at fortran/trans-expr.c:9433

[gscfq--- via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101100

            Bug ID: 101100
           Summary: [9/10/11/12 Regression] ICE in trans_caf_token_assign,
                    at fortran/trans-expr.c:9433
           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: ---

Affects versions down to r7 :


$ cat z1.f90
program p
   type t
      procedure(), pointer, nopass :: f
   end type
   type(t) :: x[*]
   x%f => null()
end


$ gfortran-6 -c z1.f90 -fcoarray=lib
$ gfortran-12-20210613 -c z1.f90 -fcoarray=single
$
$ gfortran-12-20210613 -c z1.f90 -fcoarray=lib
z1.f90:6:16:

    6 |    x%f => null()
      |                1
internal compiler error: Segmentation fault
0xc7bfff crash_signal
        ../../gcc/toplev.c:327
0x9a9f57 build_fold_indirect_ref_loc(unsigned int, tree_node*)
        ../../gcc/fold-const.c:15991
0x7dd4d6 trans_caf_token_assign
        ../../gcc/fortran/trans-expr.c:9433
0x7dd4d6 gfc_trans_pointer_assignment(gfc_expr*, gfc_expr*)
        ../../gcc/fortran/trans-expr.c:9586
0x79f8c7 trans_code
        ../../gcc/fortran/trans.c:1926
0x7c6054 gfc_generate_function_code(gfc_namespace*)
        ../../gcc/fortran/trans-decl.c:6893
0x74c876 translate_all_program_units
        ../../gcc/fortran/parse.c:6461
0x74c876 gfc_parse_file()
        ../../gcc/fortran/parse.c:6730
0x798bbf gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:212