   0  inline_call_r_r <JitCode 'W_ReversedIterator.descr_next'>, R[%r0] -> %r0
   6  -live- %r0
   9  goto_if_not_ptr_iszero %r0, L1
  13  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
  15  ---
  15  L1:
  15  ref_return %r0
