159   Metadata *mapMetadata(const Metadata *MD);
184   Optional<Metadata *> mapSimpleMetadata(const Metadata *MD);
186   Metadata *mapToMetadata(const Metadata *Key, Metadata *Val);
187   Metadata *mapToSelf(const Metadata *MD);
202     SmallDenseMap<const Metadata *, Data, 32> Info; // Node properties.
212     Metadata &getFwdReference(MDNode &Op);
219   SmallDenseMap<const Metadata *, Data, 32> InfoStorage;
243   Metadata *map(const MDNode &N);
265   Metadata *mapTopLevelUniquedNode(const MDNode &FirstN);
275   Optional<Metadata *> tryToMapOperand(const Metadata *Op);
287   Optional<Metadata *> getMappedOp(const Metadata *Op) const;
380     const Metadata *MD = MDV->getMetadata();  in mapValue()
552 Metadata *Mapper::mapToMetadata(const Metadata *Key, Metadata *Val) {  in mapToMetadata()
557 Metadata *Mapper::mapToSelf(const Metadata *MD) {  in mapToSelf()
558   return mapToMetadata(MD, const_cast<Metadata *>(MD));  in mapToSelf()
561 Optional<Metadata *> MDNodeMapper::tryToMapOperand(const Metadata *Op) {  in tryToMapOperand()
565   if (Optional<Metadata *> MappedOp = M.mapSimpleMetadata(Op)) {  in tryToMapOperand()
587   Metadata *NewM = nullptr;  in mapDistinctNode()
609 Optional<Metadata *> MDNodeMapper::getMappedOp(const Metadata *Op) const {  in getMappedOp()
613   if (Optional<Metadata *> MappedOp = M.getVM().getMappedMD(Op))  in getMappedOp()
617     return const_cast<Metadata *>(Op);  in getMappedOp()
625 Metadata &MDNodeMapper::UniquedGraph::getFwdReference(MDNode &Op) {  in getFwdReference()
644     Metadata *Old = N.getOperand(I);  in remapOperands()
645     Metadata *New = mapOperand(Old);  in remapOperands()
706     Metadata *Op = *I++; // Increment even on early return.  in visitOperands()
707     if (Optional<Metadata *> MappedOp = tryToMapOperand(Op)) {  in visitOperands()
732       if (llvm::none_of(N->operands(), [&](const Metadata *Op) {  in propagateChanges()
759     remapOperands(*ClonedN, [this, &D, &G](Metadata *Old) {  in mapNodesInPOT()
760       if (Optional<Metadata *> MappedOp = getMappedOp(Old))  in mapNodesInPOT()
787 Metadata *MDNodeMapper::map(const MDNode &N) {  in map()
795   Metadata *MappedN =  in map()
798     remapOperands(*DistinctWorklist.pop_back_val(), [this](Metadata *Old) {  in map()
799       if (Optional<Metadata *> MappedOp = tryToMapOperand(Old))  in map()
806 Metadata *MDNodeMapper::mapTopLevelUniquedNode(const MDNode &FirstN) {  in mapTopLevelUniquedNode()
828 Optional<Metadata *> Mapper::mapSimpleMetadata(const Metadata *MD) {  in mapSimpleMetadata()
830   if (Optional<Metadata *> NewMD = getVM().getMappedMD(MD))  in mapSimpleMetadata()
834     return const_cast<Metadata *>(MD);  in mapSimpleMetadata()
839     return const_cast<Metadata *>(MD);  in mapSimpleMetadata()
854 Metadata *Mapper::mapMetadata(const Metadata *MD) {  in mapMetadata()
858   if (Optional<Metadata *> NewMD = mapSimpleMetadata(MD))  in mapMetadata()
1167 Metadata *ValueMapper::mapMetadata(const Metadata &MD) {  in mapMetadata()