Function sigalarm_handler

tv/tv.cpp:87–91

string pass_name;

void sigalarm_handler(int) {
  parallelMgr->finishChild(/*is_timeout=*/true);
  // this is a fully asynchronous exit, skip destructors and such
  _Exit(0);
}

void printDot(const Function &tgt, int n) {
  if (opt_print_dot) {