Transforms/Utils/ValueMapper.cpp

285   MDNode *NewMD;
287     NewMD = const_cast<MDNode *>(Node);
289     NewMD = MDNode::replaceWithDistinct(Node->clone());
292   DistinctWorklist.push_back(NewMD);
293   return mapToMetadata(VM, Node, NewMD, Materializer, Flags);
335   if (Metadata *NewMD = VM.MD().lookup(MD).get())
336     return NewMD;
403   Metadata *NewMD = MapMetadataImpl(MD, DistinctWorklist, VM, Flags, TypeMapper,
410     return NewMD;
413   resolveCycles(NewMD, Flags & RF_HaveUnmaterializedMetadata);
420   return NewMD;