104       if (child->cg.cyc.head != child && child->cg.cyc.head == head)  in find_cycle()
152       for (tail = head; tail->cg.cyc.next; tail = tail->cg.cyc.next)  in find_cycle()
165       if (head->cg.cyc.head != head)  in find_cycle()
167 	  head = head->cg.cyc.head;  in find_cycle()
175 	  if (child->cg.cyc.head == child)  in find_cycle()
181 	      tail->cg.cyc.next = child;  in find_cycle()
182 	      child->cg.cyc.head = head;  in find_cycle()
188 	      for (tail = child; tail->cg.cyc.next; tail = tail->cg.cyc.next)  in find_cycle()
190 		  tail->cg.cyc.next->cg.cyc.head = head;  in find_cycle()
192 		       print_name (tail->cg.cyc.next);  in find_cycle()
198 	  else if (child->cg.cyc.head != head /* firewall */ )  in find_cycle()
249   if (parent->cg.cyc.head == parent)  in post_visit()
252       for (member = parent; member; member = member->cg.cyc.next)  in post_visit()