159   Metadata *mapMetadata(const Metadata *MD);
184   std::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);
276   std::optional<Metadata *> tryToMapOperand(const Metadata *Op);
288   std::optional<Metadata *> getMappedOp(const Metadata *Op) const;
380     const Metadata *MD = MDV->getMetadata();  in mapValue()
598 Metadata *Mapper::mapToMetadata(const Metadata *Key, Metadata *Val) {  in mapToMetadata()
603 Metadata *Mapper::mapToSelf(const Metadata *MD) {  in mapToSelf()
604   return mapToMetadata(MD, const_cast<Metadata *>(MD));  in mapToSelf()
607 std::optional<Metadata *> MDNodeMapper::tryToMapOperand(const Metadata *Op) {  in tryToMapOperand()
611   if (std::optional<Metadata *> MappedOp = M.mapSimpleMetadata(Op)) {  in tryToMapOperand()
633   Metadata *NewM = nullptr;  in mapDistinctNode()
655 std::optional<Metadata *> MDNodeMapper::getMappedOp(const Metadata *Op) const {  in getMappedOp()
659   if (std::optional<Metadata *> MappedOp = M.getVM().getMappedMD(Op))  in getMappedOp()
663     return const_cast<Metadata *>(Op);  in getMappedOp()
671 Metadata &MDNodeMapper::UniquedGraph::getFwdReference(MDNode &Op) {  in getFwdReference()
690     Metadata *Old = N.getOperand(I);  in remapOperands()
691     Metadata *New = mapOperand(Old);  in remapOperands()
752     Metadata *Op = *I++; // Increment even on early return.  in visitOperands()
753     if (std::optional<Metadata *> MappedOp = tryToMapOperand(Op)) {  in visitOperands()
778       if (llvm::none_of(N->operands(), [&](const Metadata *Op) {  in propagateChanges()
805     remapOperands(*ClonedN, [this, &D, &G](Metadata *Old) {  in mapNodesInPOT()
806       if (std::optional<Metadata *> MappedOp = getMappedOp(Old))  in mapNodesInPOT()
833 Metadata *MDNodeMapper::map(const MDNode &N) {  in map()
841   Metadata *MappedN =  in map()
844     remapOperands(*DistinctWorklist.pop_back_val(), [this](Metadata *Old) {  in map()
845       if (std::optional<Metadata *> MappedOp = tryToMapOperand(Old))  in map()
852 Metadata *MDNodeMapper::mapTopLevelUniquedNode(const MDNode &FirstN) {  in mapTopLevelUniquedNode()
874 std::optional<Metadata *> Mapper::mapSimpleMetadata(const Metadata *MD) {  in mapSimpleMetadata()
876   if (std::optional<Metadata *> NewMD = getVM().getMappedMD(MD))  in mapSimpleMetadata()
880     return const_cast<Metadata *>(MD);  in mapSimpleMetadata()
885     return const_cast<Metadata *>(MD);  in mapSimpleMetadata()
900 Metadata *Mapper::mapMetadata(const Metadata *MD) {  in mapMetadata()
904   if (std::optional<Metadata *> NewMD = mapSimpleMetadata(MD))  in mapMetadata()
1213 Metadata *ValueMapper::mapMetadata(const Metadata &MD) {  in mapMetadata()