366       DAGRootTracker(LoopReroll *Parent, Loop *L, Instruction *IV,  in DAGRootTracker()
373             PreserveLCSSA(PreserveLCSSA), IV(IV), IVToIncMap(IncrMap),  in DAGRootTracker()
429       Instruction *IV;  member
464     bool isLoopControlIV(Loop *L, Instruction *IV);
468     bool reroll(Instruction *IV, Loop *L, BasicBlock *Header,
491 bool LoopReroll::isLoopControlIV(Loop *L, Instruction *IV) {  in isLoopControlIV()  argument
492   unsigned IVUses = IV->getNumUses();  in isLoopControlIV()
496   for (auto *User : IV->users()) {  in isLoopControlIV()
523             if (PN != IV)  in isLoopControlIV()
551   for (Instruction &IV : L->getHeader()->phis()) {  in collectPossibleIVs()
552     if (!IV.getType()->isIntegerTy() && !IV.getType()->isPointerTy())  in collectPossibleIVs()
556             dyn_cast<SCEVAddRecExpr>(SE->getSCEV(&IV))) {  in collectPossibleIVs()
563         IVToIncMap[&IV] = IncSCEV->getValue()->getSExtValue();  in collectPossibleIVs()
564         LLVM_DEBUG(dbgs() << "LRR: Possible IV: " << IV << " = " << *PHISCEV  in collectPossibleIVs()
567         if (isLoopControlIV(L, &IV)) {  in collectPossibleIVs()
568           LoopControlIVs.push_back(&IV);  in collectPossibleIVs()
569           LLVM_DEBUG(dbgs() << "LRR: Loop control only IV: " << IV  in collectPossibleIVs()
572           PossibleIVs.push_back(&IV);  in collectPossibleIVs()
733 static bool isLoopIncrement(User *U, Instruction *IV) {  in isLoopIncrement()  argument
742     if (PN && PN == IV)  in isLoopIncrement()
755     if (isLoopIncrement(I, IV)) {  in collectPossibleRoots()
831   if (I != IV && findRootsBase(I, SubsumedInsts))  in findRootsRecursive()
945   Inc = IVToIncMap[IV];  in findRoots()
949     for (auto *IVU : IV->users()) {  in findRoots()
950       if (isLoopIncrement(IVU, IV))  in findRoots()
953     findRootsRecursive(IV, SmallInstructionSet());  in findRoots()
954     LoopIncs.push_back(IV);  in findRoots()
956     if (!findRootsBase(IV, SmallInstructionSet()))  in findRoots()
1401   LLVM_DEBUG(dbgs() << "LRR: Matched all iteration increments for " << *IV  in validate()
1598 bool LoopReroll::reroll(Instruction *IV, Loop *L, BasicBlock *Header,  in reroll()  argument
1601   DAGRootTracker DAGRoots(this, L, IV, SE, AA, TLI, DT, LI, PreserveLCSSA,  in reroll()
1606   LLVM_DEBUG(dbgs() << "LRR: Found all root induction increments for: " << *IV  in reroll()