254     if (AlignPackStack.Stack.empty()) {  in ActOnPragmaOptionsAlign()
375     if (AlignPackStack.Stack.empty()) {  in ActOnPragmaPack()
427   if (AlignPackStack.Stack.empty())  in DiagnoseUnterminatedPragmaAlignPack()
434   for (const auto &StackSlot : llvm::reverse(AlignPackStack.Stack)) {  in DiagnoseUnterminatedPragmaAlignPack()
514     if (FpPragmaStack.Stack.empty()) {  in ActOnPragmaFloatControl()
536   if (Action & PSK_Pop && VtorDispStack.Stack.empty())  in ActOnPragmaMSVtorDisp()
553     Stack.emplace_back(Slot(StackSlotLabel, CurrentValue, CurrentPragmaLocation,  in Act()
558       auto I = llvm::find_if(llvm::reverse(Stack), [&](const Slot &x) {  in Act()
562       if (I != Stack.rend()) {  in Act()
565         Stack.erase(std::prev(I.base()), Stack.end());  in Act()
571       auto I = llvm::find_if(llvm::reverse(Stack), [&](const Slot &x) {  in Act()
575       if (I != Stack.rend()) {  in Act()
576         Stack.erase(std::prev(I.base()), Stack.end());  in Act()
577         if (Stack.empty()) {  in Act()
581           CurrentValue = Stack.back().Value;  in Act()
582           CurrentPragmaLocation = Stack.back().PragmaLocation;  in Act()
583           Stack.pop_back();  in Act()
586     } else if (!Stack.empty()) {  in Act()
593       CurrentValue = Stack.back().Value;  in Act()
594       CurrentPragmaLocation = Stack.back().PragmaLocation;  in Act()
595       Stack.pop_back();  in Act()
663   PragmaStack<StringLiteral *> *Stack =  in ActOnPragmaMSSeg()  local
669   if (Action & PSK_Pop && Stack->Stack.empty())  in ActOnPragmaMSSeg()
681   Stack->Act(PragmaLocation, Action, StackSlotLabel, SegmentName);  in ActOnPragmaMSSeg()
1055   VisStack *Stack = static_cast<VisStack*>(VisContext);  in AddPushedVisibilityAttribute()  local
1056   unsigned rawType = Stack->back().first;  in AddPushedVisibilityAttribute()
1061   SourceLocation loc = Stack->back().second;  in AddPushedVisibilityAttribute()
1077   VisStack *Stack = static_cast<VisStack*>(S.VisContext);  in PushPragmaVisibility()  local
1078   Stack->push_back(std::make_pair(type, loc));  in PushPragmaVisibility()
1188   VisStack *Stack = static_cast<VisStack*>(VisContext);  in PopPragmaVisibility()  local
1190   const std::pair<unsigned, SourceLocation> *Back = &Stack->back();  in PopPragmaVisibility()
1198       Stack->pop_back();  in PopPragmaVisibility()
1199       Back = &Stack->back();  in PopPragmaVisibility()
1208   Stack->pop_back();  in PopPragmaVisibility()
1210   if (Stack->empty())  in PopPragmaVisibility()