   0  int_lshift %i0, %i1 -> %i0
   4  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x0000aaab01c05398> -> %r0
   8  setfield_gc_i %r0, %i0, FieldDescr<pypy.objspace.std.intobject.W_IntObject.inst_intval>
  13  ref_return %r0
