   0  -live- %r0
   0  guard_class %r0 -> %i0
   3  getfield_raw_i %i0, FieldDescr<pypy.module.cStringIO.interp_stringio.W_InputOutputType_vtable.cls_is_closed> -> %i0
   8  -live- %i0, %r0
   8  switch %i0, <SwitchDictDescr 0:L1, 1:L2, 2:L3>
  12  unreachable
  13  ---
  13  L1:
  13  -live- %r0
  13  getfield_gc_r %r0, FieldDescr<pypy.module.cStringIO.interp_stringio.W_InputType.inst_string> -> %r1
  18  ptr_iszero %r1 -> %i0
  21  L4:
  21  -live- %i0, %r0
  21  goto_if_not %i0, L5
  25  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x7fff713b8960> -> %r1
  29  setfield_gc_r %r1, $<* struct rpy_string>, FieldDescr<pypy.interpreter.error.OpErrFmtNoArgs.inst__value>
  34  setfield_gc_r %r1, $<* struct pypy.interpreter.baseobjspace.W_Root>, FieldDescr<pypy.interpreter.error.OperationError.inst_w_type>
  39  assert_not_none %r1
  41  -live- %r1
  41  guard_class %r1 -> %i0
  44  -live- %r1
  44  raise %r1
  46  ---
  46  L5:
  46  ref_return %r0
  48  ---
  48  L2:
  48  -live- %r0
  48  getfield_gc_i %r0, FieldDescr<pypy.module.cStringIO.interp_stringio.W_OutputType.inst__RStringIO__closed> -> %i0
  53  goto L4
  56  ---
  56  L3:
  56  -live-
  56  raise $<* struct object>
