71   using ChainOfDependences = SmallVector<Instruction *, 4>;
100     void push_back(Instruction *I) {  in push_back()
108     Instruction *front() const {  in front()
112     Instruction *back() const {  in back()
116     Instruction *&operator[](const int index) {  in operator []()
136     Instruction *Inst2Replace = nullptr;
141     Instruction *BackedgeInst = nullptr;
142     std::map<Instruction *, DepChain *> DepChains;
195     std::set<Instruction *> ReplacedInsts;
202     void findDepChainFromPHI(Instruction *I, DepChain &D);
205     DepChain *getDepChainBtwn(Instruction *I1, Instruction *I2, int Iters);
206     bool isEquivalentOperation(Instruction *I1, Instruction *I2);
207     bool canReplace(Instruction *I);
323 bool HexagonVectorLoopCarriedReuse::isEquivalentOperation(Instruction *I1,  in isEquivalentOperation()
324                                                           Instruction *I2) {  in isEquivalentOperation()
355 bool HexagonVectorLoopCarriedReuse::canReplace(Instruction *I) {  in canReplace()
382     Instruction *BEInst = D->back();  in findValueToReuse()
388     SmallVector<Instruction *, 4> PNUsers;  in findValueToReuse()
390       Instruction *User = cast<Instruction>(U.getUser());  in findValueToReuse()
416     for (Instruction *I : PNUsers) {  in findValueToReuse()
418         Instruction *BEUser = cast<Instruction>(U.getUser());  in findValueToReuse()
436         std::map<Instruction *, DepChain *> DepChains;  in findValueToReuse()
442             Instruction *OpInst = dyn_cast<Instruction>(Op);  in findValueToReuse()
446               Instruction *BEOpInst = dyn_cast<Instruction>(BEOp);  in findValueToReuse()
476             Instruction *OpInst = dyn_cast<Instruction>(Op);  in findValueToReuse()
486             Instruction *BEOpInst = dyn_cast<Instruction>(BEOp);  in findValueToReuse()
522   Instruction *Inst2Replace = ReuseCandidate.Inst2Replace;  in reuseValue()
523   Instruction *BEInst = ReuseCandidate.BackedgeInst;  in reuseValue()
525   std::map<Instruction *, DepChain *> &DepChains = ReuseCandidate.DepChains;  in reuseValue()
531   SmallVector<Instruction *, 4> InstsInPreheader;  in reuseValue()
533     Instruction *InstInPreheader = Inst2Replace->clone();  in reuseValue()
536       Instruction *I = dyn_cast<Instruction>(Inst2Replace->getOperand(j));  in reuseValue()
559     Instruction *InstInPreheader = InstsInPreheader[i];  in reuseValue()
601 void HexagonVectorLoopCarriedReuse::findDepChainFromPHI(Instruction *I,  in findDepChainFromPHI()
621     Instruction *BEInst = dyn_cast<Instruction>(BEVal);  in findDepChainFromPHI()
628     if(!PreHdrVal || !isa<Instruction>(PreHdrVal)) {  in findDepChainFromPHI()
637 DepChain *HexagonVectorLoopCarriedReuse::getDepChainBtwn(Instruction *I1,  in getDepChainBtwn()
638                                                          Instruction *I2,  in getDepChainBtwn()