254     if (AlignPackStack.Stack.empty()) {  in ActOnPragmaOptionsAlign()
375     if (AlignPackStack.Stack.empty()) {  in ActOnPragmaPack()
475   if (AlignPackStack.Stack.empty())  in DiagnoseUnterminatedPragmaAlignPack()
482   for (const auto &StackSlot : llvm::reverse(AlignPackStack.Stack)) {  in DiagnoseUnterminatedPragmaAlignPack()
601     if (FpPragmaStack.Stack.empty()) {  in ActOnPragmaFloatControl()
629   if (Action & PSK_Pop && VtorDispStack.Stack.empty())  in ActOnPragmaMSVtorDisp()
646     Stack.emplace_back(Slot(StackSlotLabel, CurrentValue, CurrentPragmaLocation,  in Act()
651       auto I = llvm::find_if(llvm::reverse(Stack), [&](const Slot &x) {  in Act()
655       if (I != Stack.rend()) {  in Act()
658         Stack.erase(std::prev(I.base()), Stack.end());  in Act()
664       auto I = llvm::find_if(llvm::reverse(Stack), [&](const Slot &x) {  in Act()
668       if (I != Stack.rend()) {  in Act()
669         Stack.erase(std::prev(I.base()), Stack.end());  in Act()
670         if (Stack.empty()) {  in Act()
674           CurrentValue = Stack.back().Value;  in Act()
675           CurrentPragmaLocation = Stack.back().PragmaLocation;  in Act()
676           Stack.pop_back();  in Act()
679     } else if (!Stack.empty()) {  in Act()
686       CurrentValue = Stack.back().Value;  in Act()
687       CurrentPragmaLocation = Stack.back().PragmaLocation;  in Act()
688       Stack.pop_back();  in Act()
756   PragmaStack<StringLiteral *> *Stack =  in ActOnPragmaMSSeg()  local
762   if (Action & PSK_Pop && Stack->Stack.empty())  in ActOnPragmaMSSeg()
774   Stack->Act(PragmaLocation, Action, StackSlotLabel, SegmentName);  in ActOnPragmaMSSeg()
1233   VisStack *Stack = static_cast<VisStack*>(VisContext);  in AddPushedVisibilityAttribute()  local
1234   unsigned rawType = Stack->back().first;  in AddPushedVisibilityAttribute()
1239   SourceLocation loc = Stack->back().second;  in AddPushedVisibilityAttribute()
1255   VisStack *Stack = static_cast<VisStack*>(S.VisContext);  in PushPragmaVisibility()  local
1256   Stack->push_back(std::make_pair(type, loc));  in PushPragmaVisibility()
1369   VisStack *Stack = static_cast<VisStack*>(VisContext);  in PopPragmaVisibility()  local
1371   const std::pair<unsigned, SourceLocation> *Back = &Stack->back();  in PopPragmaVisibility()
1379       Stack->pop_back();  in PopPragmaVisibility()
1380       Back = &Stack->back();  in PopPragmaVisibility()
1389   Stack->pop_back();  in PopPragmaVisibility()
1391   if (Stack->empty())  in PopPragmaVisibility()