   0  residual_call_r_i $<* fn ll_os.ll_os_getpid>, R[], <CallDescr() EF=5> -> %i0
   6  -live- %i0
   6  residual_call_ir_v $<* fn ll_os.ll_os_kill>, I[%i0, $6], R[], <CallDescr(ii) EF=7>
  14  -live-
  14  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
