   0  new <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x7fef55230550> -> %r2
   4  setfield_gc_r %r2, %r0, FieldDescr<tuple2.item0>
   9  setfield_gc_r %r2, %r1, FieldDescr<tuple2.item1>
  14  new <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x7fef55230610> -> %r0
  18  setfield_gc_r %r0, %r2, FieldDescr<tuple2.item0>
  23  setfield_gc_r %r0, $<* struct rpy_string>, FieldDescr<tuple2.item1>
  28  ref_return %r0
