158   Metadata *mapMetadata(const Metadata *MD);
183   Optional<Metadata *> mapSimpleMetadata(const Metadata *MD);
185   Metadata *mapToMetadata(const Metadata *Key, Metadata *Val);
186   Metadata *mapToSelf(const Metadata *MD);
201     SmallDenseMap<const Metadata *, Data, 32> Info; // Node properties.
211     Metadata &getFwdReference(MDNode &Op);
218   SmallDenseMap<const Metadata *, Data, 32> InfoStorage;
242   Metadata *map(const MDNode &N);
264   Metadata *mapTopLevelUniquedNode(const MDNode &FirstN);
274   Optional<Metadata *> tryToMapOperand(const Metadata *Op);
286   Optional<Metadata *> getMappedOp(const Metadata *Op) const;
379     const Metadata *MD = MDV->getMetadata();  in mapValue()
541 Metadata *Mapper::mapToMetadata(const Metadata *Key, Metadata *Val) {  in mapToMetadata()
546 Metadata *Mapper::mapToSelf(const Metadata *MD) {  in mapToSelf()
547   return mapToMetadata(MD, const_cast<Metadata *>(MD));  in mapToSelf()
550 Optional<Metadata *> MDNodeMapper::tryToMapOperand(const Metadata *Op) {  in tryToMapOperand()
554   if (Optional<Metadata *> MappedOp = M.mapSimpleMetadata(Op)) {  in tryToMapOperand()
576   Metadata *NewM = nullptr;  in mapDistinctNode()
598 Optional<Metadata *> MDNodeMapper::getMappedOp(const Metadata *Op) const {  in getMappedOp()
602   if (Optional<Metadata *> MappedOp = M.getVM().getMappedMD(Op))  in getMappedOp()
606     return const_cast<Metadata *>(Op);  in getMappedOp()
614 Metadata &MDNodeMapper::UniquedGraph::getFwdReference(MDNode &Op) {  in getFwdReference()
633     Metadata *Old = N.getOperand(I);  in remapOperands()
634     Metadata *New = mapOperand(Old);  in remapOperands()
695     Metadata *Op = *I++; // Increment even on early return.  in visitOperands()
696     if (Optional<Metadata *> MappedOp = tryToMapOperand(Op)) {  in visitOperands()
721       if (llvm::none_of(N->operands(), [&](const Metadata *Op) {  in propagateChanges()
748     remapOperands(*ClonedN, [this, &D, &G](Metadata *Old) {  in mapNodesInPOT()
749       if (Optional<Metadata *> MappedOp = getMappedOp(Old))  in mapNodesInPOT()
776 Metadata *MDNodeMapper::map(const MDNode &N) {  in map()
784   Metadata *MappedN =  in map()
787     remapOperands(*DistinctWorklist.pop_back_val(), [this](Metadata *Old) {  in map()
788       if (Optional<Metadata *> MappedOp = tryToMapOperand(Old))  in map()
795 Metadata *MDNodeMapper::mapTopLevelUniquedNode(const MDNode &FirstN) {  in mapTopLevelUniquedNode()
817 Optional<Metadata *> Mapper::mapSimpleMetadata(const Metadata *MD) {  in mapSimpleMetadata()
819   if (Optional<Metadata *> NewMD = getVM().getMappedMD(MD))  in mapSimpleMetadata()
823     return const_cast<Metadata *>(MD);  in mapSimpleMetadata()
828     return const_cast<Metadata *>(MD);  in mapSimpleMetadata()
843 Metadata *Mapper::mapMetadata(const Metadata *MD) {  in mapMetadata()
847   if (Optional<Metadata *> NewMD = mapSimpleMetadata(MD))  in mapMetadata()
1146 Metadata *ValueMapper::mapMetadata(const Metadata &MD) {  in mapMetadata()