   0  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x0000aaab3e2352b8> -> %r1
   4  setfield_gc_r %r1, %r0, FieldDescr<pypy.objspace.std.iterobject.W_ReverseSeqIterObject.inst_w_seq>
   9  inline_call_r_i <JitCode 'len_w'>, R[%r0] -> %i0
  15  -live- %i0, %r1
  18  int_add %i0, $-1 -> %i0
  22  setfield_gc_i %r1, %i0, FieldDescr<pypy.objspace.std.iterobject.W_ReverseSeqIterObject.inst_index>
  27  ref_return %r1
