   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  -live- %i0, %r0
  10  goto_if_not_int_eq %i0, $<* struct object_vtable>, L2
  15  inline_call_ir_r <JitCode 'W_Dtype.descr_get_name'>, I[$False], R[%r0] -> %r0
  23  -live- %r0
  23  ref_return %r0
  25  ---
  25  L2:
  25  raise $<* struct object>
  27  ---
  27  L1:
  27  raise $<* struct object>
