[Bug fortran/103694] New: [11/12 Regression] ICE in gfc_conv_expr_op, at fortran/trans-expr.c:3882

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103694

            Bug ID: 103694
           Summary: [11/12 Regression] ICE in gfc_conv_expr_op, at
                    fortran/trans-expr.c:3882
           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 20210926 and 20211003 :


$ cat z1.f90
subroutine s
   type t
      integer :: a(2)
   end type
   type(t) :: x((0.)/0)
   integer :: n = size(x(1)%a)
end


$ gfortran-12-20210926 -c z1.f90
z1.f90:5:17:

    5 |    type(t) :: x((0.)/0)
      |                 1
Error: Division by zero at (1)


$ gfortran-12-20211212 -c z1.f90
z1.f90:5:23:

    5 |    type(t) :: x((0.)/0)
      |                       1
internal compiler error: Segmentation fault
0xd6b77f crash_signal
        ../../gcc/toplev.c:322
0x883f98 gfc_conv_expr_op
        ../../gcc/fortran/trans-expr.c:3882
0x883f98 gfc_conv_expr(gfc_se*, gfc_expr*)
        ../../gcc/fortran/trans-expr.c:9390
0x886b63 gfc_conv_expr_val(gfc_se*, gfc_expr*)
        ../../gcc/fortran/trans-expr.c:9447
0x886cb0 gfc_conv_expr_type(gfc_se*, gfc_expr*, tree_node*)
        ../../gcc/fortran/trans-expr.c:9461
0x85c1eb gfc_trans_array_bounds(tree_node*, gfc_symbol*, tree_node**,
stmtblock_t*)
        ../../gcc/fortran/trans-array.c:6461
0x85c412 gfc_trans_auto_array_allocation(tree_node*, gfc_symbol*,
gfc_wrapped_block*)
        ../../gcc/fortran/trans-array.c:6570
0x87966e gfc_trans_deferred_vars(gfc_symbol*, gfc_wrapped_block*)
        ../../gcc/fortran/trans-decl.c:4787
0x87c235 gfc_generate_function_code(gfc_namespace*)
        ../../gcc/fortran/trans-decl.c:7746
0x7ff10e translate_all_program_units
        ../../gcc/fortran/parse.c:6651
0x7ff10e gfc_parse_file()
        ../../gcc/fortran/parse.c:6938
0x84bfcf gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:216