   0  inline_call_ir_r <JitCode 'interp_w__W__StructInstance'>, I[$False], R[%r0] -> %r0
   8  -live- %r0
   8  getfield_gc_i_pure %r0, FieldDescr<pypy.module._rawffi.alt.interp_struct.W__StructInstance.inst_rawmem> -> %i0
  13  residual_call_ir_r $<* fn fromrarith_int__r_uint>, I[%i0], R[], <CallDescr(i) EF=4> -> %r0
  21  -live- %r0
  21  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x4e107050> -> %r1
  25  setfield_gc_r %r1, %r0, FieldDescr<pypy.objspace.std.longobject.W_LongObject.inst_num>
  30  ref_return %r1
