   0  inline_call_r_r <JitCode 'allocate_instance__MultibyteIncrementalDecoder'>, R[%r0] -> %r0
   6  -live- %r0, %r1
   9  inline_call_r_v <JitCode 'MultibyteIncrementalBase.__init__'>, R[%r0, %r1]
  15  -live- %r0
  18  ref_return %r0
