   0  getfield_gc_r %r0, FieldDescr<pypy.module._io.interp_bufferedio.W_BufferedRWPair.inst_w_writer> -> %r1
   5  inline_call_r_r <JitCode 'call_method_opt__star_0'>, R[%r1, $<* struct rpy_string>] -> %r2
  12  -live- %r0, %r2
  15  goto_if_not_ptr_nonzero %r2, L1
  19  ref_copy %r2 -> %r1
  22  -live- %r0, %r1, %r2
  25  guard_class %r1 -> %i0
  28  -live- %i0, %r0, %r2
  31  goto_if_not_int_eq %i0, $<* struct object_vtable>, L2
  36  getfield_gc_i_pure %r2, FieldDescr<pypy.objspace.std.intobject.W_IntObject.inst_intval> -> %i0
  41  int_is_true %i0 -> %i0
  44  L3:
  44  -live- %i0, %r0
  47  goto_if_not %i0, L4
  51  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
  53  ---
  53  L4:
  53  getfield_gc_r %r0, FieldDescr<pypy.module._io.interp_bufferedio.W_BufferedRWPair.inst_w_reader> -> %r1
  58  inline_call_r_r <JitCode 'call_method_opt__star_0'>, R[%r1, $<* struct rpy_string>] -> %r1
  65  -live- %r1
  68  ref_return %r1
  70  ---
  70  L2:
  70  L5:
  70  inline_call_r_i <JitCode 'is_true'>, R[%r2] -> %i0
  76  -live- %i0, %r0
  79  goto L3
  82  ---
  82  L1:
  82  goto L5
