   0  getfield_gc_i_pure %r0, FieldDescr<pypy.objspace.std.intobject.W_IntObject.inst_intval> -> %i0
   5  residual_call_ir_i $<* fn bit_length_int>, I[%i0], R[], <CallDescr(i) EF=0> -> %i0
  13  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x0000560933e7a9f8> -> %r0
  17  setfield_gc_i %r0, %i0, FieldDescr<pypy.objspace.std.intobject.W_IntObject.inst_intval>
  22  ref_return %r0
