   0  -live- %r1
   0  goto_if_not_ptr_nonzero %r1, L1
   4  ref_copy %r1 -> %r0
   7  -live- %r0, %r1
   7  guard_class %r1 -> %i0
  10  getfield_raw_i %i0, FieldDescr<object_vtable.subclassrange_min> -> %i0
  15  int_between $TotalOrderSymbolic('compute_fn'), %i0, $TotalOrderSymbolic('compute_fn') -> %i0
  20  -live- %i0, %r0
  20  goto_if_not %i0, L2
  24  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x3fff4b83bfd0> -> %r1
  28  inline_call_r_v <JitCode 'W_FlatIterator.__init__'>, R[%r1, %r0]
  34  -live- %r1
  34  -live- %r1
  34  goto_if_not_ptr_iszero %r1, L3
  38  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
  40  ---
  40  L3:
  40  ref_return %r1
  42  ---
  42  L2:
  42  raise $<* struct object>
  44  ---
  44  L1:
  44  raise $<* struct object>
