3953         ValueDFSStack EliminationStack;  in eliminateInstructions()  local
3987           if (EliminationStack.empty()) {  in eliminateInstructions()
3991                               << EliminationStack.dfs_back().first << ","  in eliminateInstructions()
3992                               << EliminationStack.dfs_back().second << ")\n");  in eliminateInstructions()
4010           bool ShouldPush = Def && EliminationStack.empty();  in eliminateInstructions()
4012               !EliminationStack.isInScope(MemberDFSIn, MemberDFSOut);  in eliminateInstructions()
4016             EliminationStack.popUntilDFSScope(MemberDFSIn, MemberDFSOut);  in eliminateInstructions()
4017             bool ShouldPush = Def && EliminationStack.empty();  in eliminateInstructions()
4019               EliminationStack.push_back(Def, MemberDFSIn, MemberDFSOut);  in eliminateInstructions()
4039             if (!EliminationStack.empty() && DefI && !FromStore) {  in eliminateInstructions()
4040               Value *DominatingLeader = EliminationStack.back();  in eliminateInstructions()
4074           if (EliminationStack.empty())  in eliminateInstructions()
4077           Value *DominatingLeader = EliminationStack.back();  in eliminateInstructions()
4139       ValueDFSStack EliminationStack;  in eliminateInstructions()  local
4144         if (EliminationStack.empty() ||  in eliminateInstructions()
4145             !EliminationStack.isInScope(MemberDFSIn, MemberDFSOut)) {  in eliminateInstructions()
4147           EliminationStack.popUntilDFSScope(MemberDFSIn, MemberDFSOut);  in eliminateInstructions()
4148           if (EliminationStack.empty()) {  in eliminateInstructions()
4149             EliminationStack.push_back(Member, MemberDFSIn, MemberDFSOut);  in eliminateInstructions()
4156         assert(!EliminationStack.empty());  in eliminateInstructions()
4157         Instruction *Leader = cast<Instruction>(EliminationStack.back());  in eliminateInstructions()