   0  getfield_gc_r %r0, FieldDescr<pypy.objspace.std.bufferobject.W_Buffer.inst_buf> -> %r0
   5  -live- %r0, %r1
   5  guard_class %r0 -> %i0
   8  getfield_raw_i %i0, FieldDescr<rpython.rlib.buffer.Buffer_vtable.cls_as_str> -> %i0
  13  -live- %i0, %r0, %r1
  13  switch %i0, <SwitchDictDescr 0:L1, 1:L2, 2:L3>
  17  unreachable
  18  ---
  18  L1:
  18  -live- %r0, %r1
  18  getfield_gc_r_pure %r0, FieldDescr<rpython.rlib.buffer.StringBuffer.inst_value> -> %r2
  23  L4:
  23  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x7fff4f52efa0> -> %r0
  27  setfield_gc_r %r0, %r2, FieldDescr<pypy.objspace.std.bytesobject.W_BytesObject.inst__value>
  32  inline_call_r_r <JitCode 'call_method_opt__star_1'>, R[%r0, $<* struct rpy_string>, %r1] -> %r0
  40  -live- %r0
  40  ref_return %r0
  42  ---
  42  L2:
  42  -live-
  42  raise $<* struct object>
  44  ---
  44  L3:
  44  -live- %r0, %r1
  44  inline_call_r_r <JitCode 'Buffer.as_str'>, R[%r0] -> %r2
  50  -live- %r1, %r2
  50  goto L4
