817   llvm::SmallVector<SourceMappingRegion> RegionStack;  member
888     RegionStack.emplace_back(Count, FalseCount,  in pushRegion()
892     return RegionStack.size() - 1;  in pushRegion()
899     RegionStack.emplace_back(MCDCParameters{BitmapIdx, Conditions}, StartLoc,  in pushRegion()
902     return RegionStack.size() - 1;  in pushRegion()
919     assert(RegionStack.size() >= ParentIndex && "parent not in stack");  in popRegions()
920     while (RegionStack.size() > ParentIndex) {  in popRegions()
921       SourceMappingRegion &Region = RegionStack.back();  in popRegions()
923           (Region.hasEndLoc() || RegionStack[ParentIndex].hasEndLoc())) {  in popRegions()
927                                     : RegionStack[ParentIndex].getEndLoc();  in popRegions()
991       RegionStack.pop_back();  in popRegions()
997     assert(!RegionStack.empty() && "statement has no region");  in getRegion()
998     return RegionStack.back();  in getRegion()
1137     for (SourceMappingRegion &I : llvm::reverse(RegionStack)) {  in handleFileExit()
1425     assert(RegionStack.empty() && "Regions entered but never exited");  in VisitDecl()
1707         for (size_t i = RegionStack.size(); i != Index; --i) {  in VisitSwitchStmt()
1708           if (!RegionStack[i - 1].hasEndLoc())  in VisitSwitchStmt()
1709             RegionStack[i - 1].setEndLoc(getEnd(CS->body_back()));  in VisitSwitchStmt()