3948         ValueDFSStack EliminationStack;  in eliminateInstructions()  local
3982           if (EliminationStack.empty()) {  in eliminateInstructions()
3986                               << EliminationStack.dfs_back().first << ","  in eliminateInstructions()
3987                               << EliminationStack.dfs_back().second << ")\n");  in eliminateInstructions()
4005           bool ShouldPush = Def && EliminationStack.empty();  in eliminateInstructions()
4007               !EliminationStack.isInScope(MemberDFSIn, MemberDFSOut);  in eliminateInstructions()
4011             EliminationStack.popUntilDFSScope(MemberDFSIn, MemberDFSOut);  in eliminateInstructions()
4012             bool ShouldPush = Def && EliminationStack.empty();  in eliminateInstructions()
4014               EliminationStack.push_back(Def, MemberDFSIn, MemberDFSOut);  in eliminateInstructions()
4034             if (!EliminationStack.empty() && DefI && !FromStore) {  in eliminateInstructions()
4035               Value *DominatingLeader = EliminationStack.back();  in eliminateInstructions()
4069           if (EliminationStack.empty())  in eliminateInstructions()
4072           Value *DominatingLeader = EliminationStack.back();  in eliminateInstructions()
4134       ValueDFSStack EliminationStack;  in eliminateInstructions()  local
4139         if (EliminationStack.empty() ||  in eliminateInstructions()
4140             !EliminationStack.isInScope(MemberDFSIn, MemberDFSOut)) {  in eliminateInstructions()
4142           EliminationStack.popUntilDFSScope(MemberDFSIn, MemberDFSOut);  in eliminateInstructions()
4143           if (EliminationStack.empty()) {  in eliminateInstructions()
4144             EliminationStack.push_back(Member, MemberDFSIn, MemberDFSOut);  in eliminateInstructions()
4151         assert(!EliminationStack.empty());  in eliminateInstructions()
4152         Instruction *Leader = cast<Instruction>(EliminationStack.back());  in eliminateInstructions()