   0  -live- %r0
   3  guard_class %r0 -> %i0
   6  getfield_raw_i %i0, FieldDescr<pypy.objspace.std.bytesobject.W_AbstractBytesObject_vtable.cls_descr_str> -> %i0
  11  -live- %i0, %r0
  14  switch %i0, <SwitchDictDescr 0:L1, 1:L2>
  18  unreachable
  19  ---
  19  L1:
  19  -live- %r0
  22  guard_class %r0 -> %i0
  25  -live- %i0, %r0
  28  goto_if_not_int_eq %i0, $<* struct object_vtable>, L3
  33  L4:
  33  ref_return %r0
  35  ---
  35  L3:
  35  getfield_gc_r_pure %r0, FieldDescr<pypy.objspace.std.bytesobject.W_BytesObject.inst__value> -> %r1
  40  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x0000aaab8f5249c0> -> %r0
  44  setfield_gc_r %r0, %r1, FieldDescr<pypy.objspace.std.bytesobject.W_BytesObject.inst__value>
  49  goto L4
  52  ---
  52  L2:
  52  -live-
  55  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
