   0  inline_call_ir_r <JitCode 'interp_w__W_NDIter'>, I[$False], R[%r0] -> %r0
   8  -live- %r0
   8  residual_call_r_i $<* fn W_NDIter.iternext>, R[%r0], <CallDescr(r) EF=5> -> %i0
  15  -live- %i0
  15  -live- %i0
  15  goto_if_not %i0, L1
  19  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
  21  ---
  21  L1:
  21  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
