694 struct IndexCall : public PointerUnion<CallsiteInfo *, AllocInfo *> {  struct
695   IndexCall() : PointerUnion() {}  in IndexCall()  function
696   IndexCall(std::nullptr_t) : IndexCall() {}  in IndexCall()  function
697   IndexCall(CallsiteInfo *StackNode) : PointerUnion(StackNode) {}  in IndexCall()  function
698   IndexCall(AllocInfo *AllocNode) : PointerUnion(AllocNode) {}  in IndexCall()  function
699   IndexCall(PointerUnion PT) : PointerUnion(PT) {}  in IndexCall()  argument
701   IndexCall *operator->() { return this; }  in operator ->()
703   PointerUnion<CallsiteInfo *, AllocInfo *> getBase() const { return *this; }  in getBase()
705   void print(raw_ostream &OS) const {  in print()
2088     std::vector<std::pair<IndexCall, FunctionSummary *>> &FoundCalleeChain,  in findProfiledCalleeThroughTailCalls()
2168     std::vector<std::pair<IndexCall, FunctionSummary *>> &FoundCalleeChain) {  in calleeMatchesFunc()