927     WorkListEntry(const BitVector &BV) : Cluster(BV) {}  in WorkListEntry()
932     BitVector Cluster;  member
1024     BitVector Cluster = SG.createNodesBitVector();  in setupWorkList()  local
1028         N.getDependencies(Cluster);  in setupWorkList()
1030     WorkList.emplace_back(std::move(Cluster));  in setupWorkList()
1035     for (unsigned NodeID : Entry.Cluster.set_bits()) {  in setupWorkList()
1057     return A.Cluster.count() > B.Cluster.count();  in setupWorkList()
1064       for (unsigned NodeID : Entry.Cluster.set_bits())  in setupWorkList()
1079     const BitVector &Cluster = Entry.Cluster;  in pickPartition()  local
1125       SP.add(SinglePIDToTry, Cluster);  in pickPartition()
1142       BranchSP.add(CheapestPID, Cluster);  in pickPartition()
1151       BranchSP.add(MostSimilarPID, Cluster);  in pickPartition()
1182     BV &= Entry.Cluster; // FIXME: & doesn't work between BVs?!  in findMostSimilarPartition()