   0  getarrayitem_gc_r %r1, $0, <rpython.jit.backend.llsupport.descr.ArrayDescr object at 0x0000000177231bb0> -> %r0
   6  inline_call_ir_r <JitCode 'interp_w__W_IOBase'>, I[$False], R[%r0] -> %r0
  14  -live- %r0, %r1
  14  getarrayitem_gc_r %r1, $1, <rpython.jit.backend.llsupport.descr.ArrayDescr object at 0x0000000177231bb0> -> %r2
  20  getarrayitem_gc_r %r1, $2, <rpython.jit.backend.llsupport.descr.ArrayDescr object at 0x0000000177231bb0> -> %r1
  26  -live- %r0
  26  guard_class %r0 -> %i0
  29  getfield_raw_i %i0, FieldDescr<pypy.module._io.interp_iobase.W_IOBase_vtable.cls__unsupportedoperation> -> %i0
  34  -live- %i0, %r0
  34  switch %i0, <SwitchDictDescr 0:L1, 1:L2>
  38  unreachable
  39  ---
  39  L1:
  39  -live- %r0
  39  inline_call_r_v <JitCode 'W_BufferedIOBase._unsupportedoperation'>, R[%r0, $<* struct rpy_string>]
  45  -live-
  45  raise $<* struct object>
  47  ---
  47  L2:
  47  -live-
  47  inline_call_r_r <JitCode 'unsupported'>, R[$<* struct rpy_string>] -> %r0
  53  -live- %r0
  53  assert_not_none %r0
  55  -live- %r0
  55  guard_class %r0 -> %i0
  58  -live- %r0
  58  raise %r0
