257     if (AlignPackStack.Stack.empty()) {  in ActOnPragmaOptionsAlign()
378     if (AlignPackStack.Stack.empty()) {  in ActOnPragmaPack()
478   if (AlignPackStack.Stack.empty())  in DiagnoseUnterminatedPragmaAlignPack()
485   for (const auto &StackSlot : llvm::reverse(AlignPackStack.Stack)) {  in DiagnoseUnterminatedPragmaAlignPack()
593     if (FpPragmaStack.Stack.empty()) {  in ActOnPragmaFloatControl()
615   if (Action & PSK_Pop && VtorDispStack.Stack.empty())  in ActOnPragmaMSVtorDisp()
632     Stack.emplace_back(Slot(StackSlotLabel, CurrentValue, CurrentPragmaLocation,  in Act()
637       auto I = llvm::find_if(llvm::reverse(Stack), [&](const Slot &x) {  in Act()
641       if (I != Stack.rend()) {  in Act()
644         Stack.erase(std::prev(I.base()), Stack.end());  in Act()
650       auto I = llvm::find_if(llvm::reverse(Stack), [&](const Slot &x) {  in Act()
654       if (I != Stack.rend()) {  in Act()
655         Stack.erase(std::prev(I.base()), Stack.end());  in Act()
656         if (Stack.empty()) {  in Act()
660           CurrentValue = Stack.back().Value;  in Act()
661           CurrentPragmaLocation = Stack.back().PragmaLocation;  in Act()
662           Stack.pop_back();  in Act()
665     } else if (!Stack.empty()) {  in Act()
672       CurrentValue = Stack.back().Value;  in Act()
673       CurrentPragmaLocation = Stack.back().PragmaLocation;  in Act()
674       Stack.pop_back();  in Act()
742   PragmaStack<StringLiteral *> *Stack =  in ActOnPragmaMSSeg()  local
748   if (Action & PSK_Pop && Stack->Stack.empty())  in ActOnPragmaMSSeg()
760   Stack->Act(PragmaLocation, Action, StackSlotLabel, SegmentName);  in ActOnPragmaMSSeg()
767   if (Action & PSK_Pop && StrictGuardStackCheckStack.Stack.empty())  in ActOnPragmaMSStrictGuardStackCheck()
1230   VisStack *Stack = static_cast<VisStack*>(VisContext);  in AddPushedVisibilityAttribute()  local
1231   unsigned rawType = Stack->back().first;  in AddPushedVisibilityAttribute()
1236   SourceLocation loc = Stack->back().second;  in AddPushedVisibilityAttribute()
1252   VisStack *Stack = static_cast<VisStack*>(S.VisContext);  in PushPragmaVisibility()  local
1253   Stack->push_back(std::make_pair(type, loc));  in PushPragmaVisibility()
1366   VisStack *Stack = static_cast<VisStack*>(VisContext);  in PopPragmaVisibility()  local
1368   const std::pair<unsigned, SourceLocation> *Back = &Stack->back();  in PopPragmaVisibility()
1376       Stack->pop_back();  in PopPragmaVisibility()
1377       Back = &Stack->back();  in PopPragmaVisibility()
1386   Stack->pop_back();  in PopPragmaVisibility()
1388   if (Stack->empty())  in PopPragmaVisibility()