282 struct ChainT {  struct
288   explicit ChainT(uint64_t Id, NodeT *Node)  in ChainT()  function
292   size_t numBlocks() const { return Nodes.size(); }  in numBlocks()
294   double density() const { return ExecutionCount / Size; }  in density()
296   bool isEntry() const { return Nodes[0]->Index == 0; }  in isEntry()
298   bool isCold() const {  in isCold()
306   ChainEdge *getEdge(ChainT *Other) const {  in getEdge()
314   void removeEdge(ChainT *Other) {  in removeEdge()
325   void addEdge(ChainT *Other, ChainEdge *Edge) {  in addEdge()
329   void merge(ChainT *Other, std::vector<NodeT *> MergedBlocks) {  in merge()
344   void clear() {  in clear()
352   uint64_t Id;
354   double Score{0};
357   double ExecutionCount{0};
359   uint64_t Size{0};
361   std::vector<NodeT *> Nodes;
363   std::vector<std::pair<ChainT *, ChainEdge *>> Edges;