   0  int_signext %i0, $4 -> %i0
   4  int_signext %i1, $4 -> %i1
   8  residual_call_ir_i $<* fn ccall_kill__INT_INT>, I[%i0, %i1], R[], <CallDescr(ii) EF=7> -> %i0
  17  -live- %i0
  17  inline_call_ir_i <JitCode 'handle_posix_error__kill'>, I[%i0], R[$<* struct rpy_string>] -> %i0
  25  -live- %i0
  25  int_return %i0
