3911         ValueDFSStack EliminationStack;  in eliminateInstructions()  local
3945           if (EliminationStack.empty()) {  in eliminateInstructions()
3949                               << EliminationStack.dfs_back().first << ","  in eliminateInstructions()
3950                               << EliminationStack.dfs_back().second << ")\n");  in eliminateInstructions()
3968           bool ShouldPush = Def && EliminationStack.empty();  in eliminateInstructions()
3970               !EliminationStack.isInScope(MemberDFSIn, MemberDFSOut);  in eliminateInstructions()
3974             EliminationStack.popUntilDFSScope(MemberDFSIn, MemberDFSOut);  in eliminateInstructions()
3975             bool ShouldPush = Def && EliminationStack.empty();  in eliminateInstructions()
3977               EliminationStack.push_back(Def, MemberDFSIn, MemberDFSOut);  in eliminateInstructions()
3996             if (!EliminationStack.empty() && Def != EliminationStack.back() &&  in eliminateInstructions()
4023           if (EliminationStack.empty())  in eliminateInstructions()
4026           Value *DominatingLeader = EliminationStack.back();  in eliminateInstructions()
4085       ValueDFSStack EliminationStack;  in eliminateInstructions()  local
4090         if (EliminationStack.empty() ||  in eliminateInstructions()
4091             !EliminationStack.isInScope(MemberDFSIn, MemberDFSOut)) {  in eliminateInstructions()
4093           EliminationStack.popUntilDFSScope(MemberDFSIn, MemberDFSOut);  in eliminateInstructions()
4094           if (EliminationStack.empty()) {  in eliminateInstructions()
4095             EliminationStack.push_back(Member, MemberDFSIn, MemberDFSOut);  in eliminateInstructions()
4102         assert(!EliminationStack.empty());  in eliminateInstructions()
4103         Instruction *Leader = cast<Instruction>(EliminationStack.back());  in eliminateInstructions()