440       SmallVector<DAGRootSet,16> RootSets;  member
939   RootSets.append(PotentialRootSets.begin(), PotentialRootSets.end());  in findRootsBase()
947   assert(RootSets.empty() && "Unclean state!");  in findRoots()
961   if (RootSets.empty()) {  in findRoots()
965   for (auto &V : RootSets) {  in findRoots()
966     if (V.Roots.empty() || V.Roots.size() != RootSets[0].Roots.size()) {  in findRoots()
974   Scale = RootSets[0].Roots.size() + 1;  in findRoots()
997   for (auto &DRS : RootSets) {  in collectUsedInstructions()
1004   for (auto &DRS : RootSets) {  in collectUsedInstructions()
1037   for (auto &DRS : RootSets) {  in collectUsedInstructions()
1073   for (auto &DRS : RootSets) {  in isBaseInst()
1081   for (auto &DRS : RootSets) {  in isRootInst()
1350             for (auto &DRS : RootSets) {  in validate()
1414   for (auto &DRS : RootSets) {  in replace()
1431   for (size_t i = 0, e = RootSets.size(); i != e; ++i)  in replace()
1433     replaceIV(RootSets[i], StartExprs[i], IncrExprs[i]);  in replace()