   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
  12  -live- %r0, %r2
  12  goto_if_not_ptr_nonzero %r2, L1
  16  ref_copy %r2 -> %r1
  19  -live- %r0, %r1, %r2
  19  guard_class %r1 -> %i0
  22  -live- %i0, %r0, %r2
  22  goto_if_not_int_eq %i0, $<* struct object_vtable>, L2
  27  getfield_gc_i_pure %r2, FieldDescr<pypy.objspace.std.intobject.W_IntObject.inst_intval> -> %i0
  32  int_is_true %i0 -> %i0
  35  L3:
  35  -live- %i0, %r0
  35  goto_if_not %i0, L4
  39  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
  41  ---
  41  L4:
  41  getfield_gc_r %r0, FieldDescr<pypy.module._io.interp_bufferedio.W_BufferedRWPair.inst_w_reader> -> %r1
  46  inline_call_r_r <JitCode 'call_method_opt__star_0'>, R[%r1, $<* struct rpy_string>] -> %r1
  53  -live- %r1
  53  ref_return %r1
  55  ---
  55  L2:
  55  L5:
  55  inline_call_r_i <JitCode 'is_true'>, R[%r2] -> %i0
  61  -live- %i0, %r0
  61  goto L3
  64  ---
  64  L1:
  64  goto L5
