52 static bool isTrivialDoWhile(const CFGBlock *B, const Stmt *S) {  in isTrivialDoWhile()
72 static bool isBuiltinAssumeFalse(const CFGBlock *B, const Stmt *S,  in isBuiltinAssumeFalse()
87 static bool isDeadReturn(const CFGBlock *B, const Stmt *S) {  in isDeadReturn()
91   const CFGBlock *Current = B;  in isDeadReturn()
296 static bool shouldTreatSuccessorsAsReachable(const CFGBlock *B,  in shouldTreatSuccessorsAsReachable()
317 static unsigned scanFromBlock(const CFGBlock *Start,  in scanFromBlock()
324   SmallVector<const CFGBlock*, 32> WL;  in scanFromBlock()
337     const CFGBlock *item = WL.pop_back_val();  in scanFromBlock()
349     for (CFGBlock::const_succ_iterator I = item->succ_begin(),  in scanFromBlock()
351       const CFGBlock *B = *I;  in scanFromBlock()
353         const CFGBlock *UB = I->getPossiblyUnreachableBlock();  in scanFromBlock()
383 static unsigned scanMaybeReachableFromBlock(const CFGBlock *Start,  in scanMaybeReachableFromBlock()
397     SmallVector<const CFGBlock *, 10> WorkList;
401     typedef SmallVector<std::pair<const CFGBlock *, const Stmt *>, 12>
412     void enqueue(const CFGBlock *block);
413     unsigned scanBackwards(const CFGBlock *Start,
416     bool isDeadCodeRoot(const CFGBlock *Block);
418     const Stmt *findDeadCode(const CFGBlock *Block);
420     void reportDeadCode(const CFGBlock *B,
426 void DeadCodeScan::enqueue(const CFGBlock *block) {  in enqueue()
434 bool DeadCodeScan::isDeadCodeRoot(const clang::CFGBlock *Block) {  in isDeadCodeRoot()
437   for (CFGBlock::const_pred_iterator I = Block->pred_begin(),  in isDeadCodeRoot()
439     if (const CFGBlock *PredBlock = *I) {  in isDeadCodeRoot()
459 static bool isInCoroutineStmt(const Stmt *DeadStmt, const CFGBlock *Block) {  in isInCoroutineStmt()
464   for (CFGBlock::const_iterator I = Block->begin(), E = Block->end(); I != E;  in isInCoroutineStmt()
496 static bool isValidDeadStmt(const Stmt *S, const clang::CFGBlock *Block) {  in isValidDeadStmt()
507 const Stmt *DeadCodeScan::findDeadCode(const clang::CFGBlock *Block) {  in findDeadCode()
508   for (CFGBlock::const_iterator I = Block->begin(), E = Block->end(); I!=E; ++I)  in findDeadCode()
525 static int SrcCmp(const std::pair<const CFGBlock *, const Stmt *> *p1,  in SrcCmp()  argument
526                   const std::pair<const CFGBlock *, const Stmt *> *p2) {  in SrcCmp()
534 unsigned DeadCodeScan::scanBackwards(const clang::CFGBlock *Start,  in scanBackwards()
541     const CFGBlock *Block = WorkList.pop_back_val();  in scanBackwards()
553       for (CFGBlock::const_pred_iterator I = Block->pred_begin(),  in scanBackwards()
555         if (const CFGBlock *predBlock = *I)  in scanBackwards()
584       const CFGBlock *Block = I.first;  in scanBackwards()
660 void DeadCodeScan::reportDeadCode(const CFGBlock *B,  in reportDeadCode()
705     CFGBlock::const_pred_iterator PI = B->pred_begin();  in reportDeadCode()
707       if (const CFGBlock *PredBlock = PI->getPossiblyUnreachableBlock()) {  in reportDeadCode()
728 unsigned ScanReachableFromBlock(const CFGBlock *Start,  in ScanReachableFromBlock()
751     for (const CFGBlock *B : cfg->try_blocks())  in FindUnreachableCode()
759   for (const CFGBlock *block : *cfg) {  in FindUnreachableCode()