   0  -live- %r0
   0  goto_if_not_ptr_nonzero %r0, L1
   4  ref_copy %r0 -> %r1
   7  -live- %r0, %r1
   7  guard_class %r1 -> %i0
  10  -live- %i0, %r0
  10  goto_if_not_int_eq %i0, $<* struct object_vtable>, L2
  15  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x00000001b5189670> -> %r1
  19  setfield_gc_r %r1, %r0, FieldDescr<pypy.objspace.std.iterobject.W_AbstractSeqIterObject.inst_w_seq>
  24  setfield_gc_i %r1, $0, FieldDescr<pypy.objspace.std.iterobject.W_AbstractSeqIterObject.inst_index>
  29  setfield_gc_i %r1, $0, FieldDescr<pypy.objspace.std.iterobject.W_FastUnicodeIterObject.inst_byteindex>
  34  L3:
  34  ref_return %r1
  36  ---
  36  L2:
  36  L4:
  36  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x00000001b5182838> -> %r1
  40  setfield_gc_r %r1, %r0, FieldDescr<pypy.objspace.std.iterobject.W_AbstractSeqIterObject.inst_w_seq>
  45  setfield_gc_i %r1, $0, FieldDescr<pypy.objspace.std.iterobject.W_AbstractSeqIterObject.inst_index>
  50  goto L3
  53  ---
  53  L1:
  53  goto L4
