539 struct CounterCoverageMappingBuilder  struct
543   llvm::DenseMap<const Stmt *, unsigned> &CounterMap;
546   std::vector<SourceMappingRegion> RegionStack;
548   CounterExpressionBuilder Builder;
554   SourceLocation MostRecentLocation;
557   bool HasTerminateStmt = false;
560   Counter GapRegionCounter;
563   Counter subtractCounters(Counter LHS, Counter RHS, bool Simplify = true) {  in subtractCounters()
568   Counter addCounters(Counter LHS, Counter RHS, bool Simplify = true) {  in addCounters()
572   Counter addCounters(Counter C1, Counter C2, Counter C3,  in addCounters()
580   Counter getRegionCounter(const Stmt *S) {  in getRegionCounter()
588   size_t pushRegion(Counter Count,  in pushRegion()
602   size_t locationDepth(SourceLocation Loc) {  in locationDepth()
615   void popRegions(size_t ParentIndex) {  in popRegions()
692   SourceMappingRegion &getRegion() {  in getRegion()
699   Counter propagateCounts(Counter TopCount, const Stmt *S,  in propagateCounts()
718   bool ConditionFoldsToBool(const Expr *Cond) {  in ConditionFoldsToBool()
727   void createBranchRegion(const Expr *C, Counter TrueCnt, Counter FalseCnt) {  in createBranchRegion()
754   void createSwitchCaseRegion(const SwitchCase *SC, Counter TrueCnt,  in createSwitchCaseRegion()
764   bool isRegionAlreadyAdded(SourceLocation StartLoc, SourceLocation EndLoc,  in isRegionAlreadyAdded()
776   void adjustForOutOfOrderTraversal(SourceLocation EndLoc) {  in adjustForOutOfOrderTraversal()
795   void handleFileExit(SourceLocation NewLoc) {  in handleFileExit()
863   void extendRegion(const Stmt *S) {  in extendRegion()
873   void terminateRegion(const Stmt *S) {  in terminateRegion()
884   std::optional<SourceRange> findGapAreaBetween(SourceLocation AfterLoc,  in findGapAreaBetween()
931   void fillGapAreaWithCount(SourceLocation StartLoc, SourceLocation EndLoc,  in fillGapAreaWithCount()
944   struct BreakContinue {
948   SmallVector<BreakContinue, 8> BreakContinueStack;
950   CounterCoverageMappingBuilder(  in CounterCoverageMappingBuilder()  argument
957   void write(llvm::raw_ostream &OS) {  in write()
972   void VisitStmt(const Stmt *S) {  in VisitStmt()
1000   void VisitDecl(const Decl *D) {  in VisitDecl()
1020   void VisitReturnStmt(const ReturnStmt *S) {  in VisitReturnStmt()
1027   void VisitCoroutineBodyStmt(const CoroutineBodyStmt *S) {  in VisitCoroutineBodyStmt()
1032   void VisitCoreturnStmt(const CoreturnStmt *S) {  in VisitCoreturnStmt()
1039   void VisitCXXThrowExpr(const CXXThrowExpr *E) {  in VisitCXXThrowExpr()
1046   void VisitGotoStmt(const GotoStmt *S) { terminateRegion(S); }  in VisitGotoStmt()
1048   void VisitLabelStmt(const LabelStmt *S) {  in VisitLabelStmt()
1057   void VisitBreakStmt(const BreakStmt *S) {  in VisitBreakStmt()
1066   void VisitContinueStmt(const ContinueStmt *S) {  in VisitContinueStmt()
1073   void VisitCallExpr(const CallExpr *E) {  in VisitCallExpr()
1083   void VisitWhileStmt(const WhileStmt *S) {  in VisitWhileStmt()
1123   void VisitDoStmt(const DoStmt *S) {  in VisitDoStmt()
1156   void VisitForStmt(const ForStmt *S) {  in VisitForStmt()
1213   void VisitCXXForRangeStmt(const CXXForRangeStmt *S) {  in VisitCXXForRangeStmt()
1252   void VisitObjCForCollectionStmt(const ObjCForCollectionStmt *S) {  in VisitObjCForCollectionStmt()
1279   void VisitSwitchStmt(const SwitchStmt *S) {  in VisitSwitchStmt()
1353   void VisitSwitchCase(const SwitchCase *S) {  in VisitSwitchCase()
1376   void VisitIfStmt(const IfStmt *S) {  in VisitIfStmt()
1433   void VisitCXXTryStmt(const CXXTryStmt *S) {  in VisitCXXTryStmt()
1448   void VisitCXXCatchStmt(const CXXCatchStmt *S) {  in VisitCXXCatchStmt()
1452   void VisitAbstractConditionalOperator(const AbstractConditionalOperator *E) {  in VisitAbstractConditionalOperator()
1480   void VisitBinLAnd(const BinaryOperator *E) {  in VisitBinLAnd()
1507   void VisitBinLOr(const BinaryOperator *E) {  in VisitBinLOr()
1534   void VisitLambdaExpr(const LambdaExpr *LE) {  in VisitLambdaExpr()