   0  -live- %r1
   3  goto_if_not_ptr_nonzero %r1, L1
   7  ref_copy %r1 -> %r0
  10  -live- %r0, %r1
  13  guard_class %r1 -> %i0
  16  -live- %i0, %r0
  19  goto_if_not_int_eq %i0, $<* struct object_vtable>, L2
  24  getfield_gc_i %r0, FieldDescr<pypy.module._rawffi.interp_rawffi.W_DataInstance.inst_ll_buffer> -> %i0
  29  residual_call_ir_r $<* fn fromrarith_int__r_uint>, I[%i0], R[], <CallDescr(i) EF=4> -> %r0
  37  -live- %r0
  40  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x0000aaab049239b8> -> %r1
  44  setfield_gc_r %r1, %r0, FieldDescr<pypy.objspace.std.longobject.W_LongObject.inst_num>
  49  ref_return %r1
  51  ---
  51  L2:
  51  L3:
  51  raise $<* struct object>
  53  ---
  53  L1:
  53  goto L3
