   0  getfield_gc_r %r0, FieldDescr<pypy.module._io.interp_bufferedio.W_BufferedRWPair.inst_w_reader> -> %r0
   5  -live- %r0, %r1
   8  goto_if_not_ptr_iszero %r0, L1
  12  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x0000555ab11f9c90> -> %r0
  16  setfield_gc_r %r0, $<* struct rpy_string>, FieldDescr<pypy.interpreter.error.OpErrFmtNoArgs.inst__value>
  21  setfield_gc_r %r0, $<* struct pypy.interpreter.baseobjspace.W_Root>, FieldDescr<pypy.interpreter.error.OperationError.inst_w_type>
  26  assert_not_none %r0
  28  -live- %r0
  31  raise %r0
  33  ---
  33  L1:
  33  inline_call_r_r <JitCode 'getattr'>, R[%r0, $<* struct pypy.interpreter.baseobjspace.W_Root>] -> %r0
  40  -live- %r0, %r1
  43  inline_call_r_r <JitCode 'call_args'>, R[%r0, %r1] -> %r0
  50  -live- %r0
  53  ref_return %r0
