537 struct CounterCoverageMappingBuilder  struct
541   llvm::DenseMap<const Stmt *, unsigned> &CounterMap;
544   std::vector<SourceMappingRegion> RegionStack;
546   CounterExpressionBuilder Builder;
552   SourceLocation MostRecentLocation;
555   bool HasTerminateStmt = false;
558   Counter GapRegionCounter;
561   Counter subtractCounters(Counter LHS, Counter RHS, bool Simplify = true) {  in subtractCounters()
566   Counter addCounters(Counter LHS, Counter RHS, bool Simplify = true) {  in addCounters()
570   Counter addCounters(Counter C1, Counter C2, Counter C3,  in addCounters()
578   Counter getRegionCounter(const Stmt *S) {  in getRegionCounter()
586   size_t pushRegion(Counter Count, Optional<SourceLocation> StartLoc = None,  in pushRegion()
599   size_t locationDepth(SourceLocation Loc) {  in locationDepth()
612   void popRegions(size_t ParentIndex) {  in popRegions()
689   SourceMappingRegion &getRegion() {  in getRegion()
696   Counter propagateCounts(Counter TopCount, const Stmt *S,  in propagateCounts()
715   bool ConditionFoldsToBool(const Expr *Cond) {  in ConditionFoldsToBool()
724   void createBranchRegion(const Expr *C, Counter TrueCnt, Counter FalseCnt) {  in createBranchRegion()
751   void createSwitchCaseRegion(const SwitchCase *SC, Counter TrueCnt,  in createSwitchCaseRegion()
761   bool isRegionAlreadyAdded(SourceLocation StartLoc, SourceLocation EndLoc,  in isRegionAlreadyAdded()
773   void adjustForOutOfOrderTraversal(SourceLocation EndLoc) {  in adjustForOutOfOrderTraversal()
792   void handleFileExit(SourceLocation NewLoc) {  in handleFileExit()
860   void extendRegion(const Stmt *S) {  in extendRegion()
870   void terminateRegion(const Stmt *S) {  in terminateRegion()
881   Optional<SourceRange> findGapAreaBetween(SourceLocation AfterLoc,  in findGapAreaBetween()
928   void fillGapAreaWithCount(SourceLocation StartLoc, SourceLocation EndLoc,  in fillGapAreaWithCount()
941   struct BreakContinue {
945   SmallVector<BreakContinue, 8> BreakContinueStack;
947   CounterCoverageMappingBuilder(  in CounterCoverageMappingBuilder()  argument
954   void write(llvm::raw_ostream &OS) {  in write()
969   void VisitStmt(const Stmt *S) {  in VisitStmt()
997   void VisitDecl(const Decl *D) {  in VisitDecl()
1017   void VisitReturnStmt(const ReturnStmt *S) {  in VisitReturnStmt()
1024   void VisitCoroutineBodyStmt(const CoroutineBodyStmt *S) {  in VisitCoroutineBodyStmt()
1029   void VisitCoreturnStmt(const CoreturnStmt *S) {  in VisitCoreturnStmt()
1036   void VisitCXXThrowExpr(const CXXThrowExpr *E) {  in VisitCXXThrowExpr()
1043   void VisitGotoStmt(const GotoStmt *S) { terminateRegion(S); }  in VisitGotoStmt()
1045   void VisitLabelStmt(const LabelStmt *S) {  in VisitLabelStmt()
1054   void VisitBreakStmt(const BreakStmt *S) {  in VisitBreakStmt()
1063   void VisitContinueStmt(const ContinueStmt *S) {  in VisitContinueStmt()
1070   void VisitCallExpr(const CallExpr *E) {  in VisitCallExpr()
1080   void VisitWhileStmt(const WhileStmt *S) {  in VisitWhileStmt()
1120   void VisitDoStmt(const DoStmt *S) {  in VisitDoStmt()
1153   void VisitForStmt(const ForStmt *S) {  in VisitForStmt()
1210   void VisitCXXForRangeStmt(const CXXForRangeStmt *S) {  in VisitCXXForRangeStmt()
1249   void VisitObjCForCollectionStmt(const ObjCForCollectionStmt *S) {  in VisitObjCForCollectionStmt()
1276   void VisitSwitchStmt(const SwitchStmt *S) {  in VisitSwitchStmt()
1350   void VisitSwitchCase(const SwitchCase *S) {  in VisitSwitchCase()
1373   void VisitIfStmt(const IfStmt *S) {  in VisitIfStmt()
1430   void VisitCXXTryStmt(const CXXTryStmt *S) {  in VisitCXXTryStmt()
1445   void VisitCXXCatchStmt(const CXXCatchStmt *S) {  in VisitCXXCatchStmt()
1449   void VisitAbstractConditionalOperator(const AbstractConditionalOperator *E) {  in VisitAbstractConditionalOperator()
1477   void VisitBinLAnd(const BinaryOperator *E) {  in VisitBinLAnd()
1504   void VisitBinLOr(const BinaryOperator *E) {  in VisitBinLOr()
1531   void VisitLambdaExpr(const LambdaExpr *LE) {  in VisitLambdaExpr()