   0  getfield_gc_r %r0, FieldDescr<pypy.objspace.std.bufferobject.W_Buffer.inst_buf> -> %r0
   5  -live- %r0
   5  guard_class %r0 -> %i0
   8  getfield_raw_i %i0, FieldDescr<rpython.rlib.buffer.Buffer_vtable.cls_as_str> -> %i0
  13  -live- %i0, %r0
  13  switch %i0, <SwitchDictDescr 0:L1, 1:L2, 2:L3>
  17  unreachable
  18  ---
  18  L1:
  18  -live- %r0
  18  getfield_gc_r_pure %r0, FieldDescr<rpython.rlib.buffer.StringBuffer.inst_value> -> %r1
  23  L4:
  23  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x7fff4f52efa0> -> %r0
  27  setfield_gc_r %r0, %r1, FieldDescr<pypy.objspace.std.bytesobject.W_BytesObject.inst__value>
  32  ref_return %r0
  34  ---
  34  L2:
  34  -live-
  34  raise $<* struct object>
  36  ---
  36  L3:
  36  -live- %r0
  36  inline_call_r_r <JitCode 'Buffer.as_str'>, R[%r0] -> %r1
  42  -live- %r1
  42  goto L4
