   0  inline_call_r_v <JitCode 'BufferingOutputStream.flush_buffers'>, R[%r0]
   5  -live- %r0
   5  getfield_gc_r %r0, FieldDescr<rpython.rlib.streamio.BufferingOutputStream.inst_base> -> %r0
  10  -live- %r0
  10  guard_class %r0 -> %i0
  13  getfield_raw_i %i0, FieldDescr<rpython.rlib.streamio.Stream_vtable.cls_readline> -> %i0
  18  -live- %i0, %r0
  18  int_guard_value %i0
  20  residual_call_r_r %i0, <IndirectCallTargets>, R[%r0], <CallDescr(r) EF=7> -> %r0
  27  -live- %r0
  27  ref_return %r0
