49 static bool isTrivialDoWhile(const CFGBlock *B, const Stmt *S) {  in isTrivialDoWhile()
61 static bool isDeadReturn(const CFGBlock *B, const Stmt *S) {  in isDeadReturn()
65   const CFGBlock *Current = B;  in isDeadReturn()
67     for (CFGBlock::const_reverse_iterator I = Current->rbegin(),  in isDeadReturn()
252 static bool shouldTreatSuccessorsAsReachable(const CFGBlock *B,  in shouldTreatSuccessorsAsReachable()
267 static unsigned scanFromBlock(const CFGBlock *Start,  in scanFromBlock()
274   SmallVector<const CFGBlock*, 32> WL;  in scanFromBlock()
287     const CFGBlock *item = WL.pop_back_val();  in scanFromBlock()
299     for (CFGBlock::const_succ_iterator I = item->succ_begin(),   in scanFromBlock()
301       const CFGBlock *B = *I;  in scanFromBlock()
303         const CFGBlock *UB = I->getPossiblyUnreachableBlock();  in scanFromBlock()
333 static unsigned scanMaybeReachableFromBlock(const CFGBlock *Start,  in scanMaybeReachableFromBlock()
347     SmallVector<const CFGBlock *, 10> WorkList;
350     typedef SmallVector<std::pair<const CFGBlock *, const Stmt *>, 12>
361     void enqueue(const CFGBlock *block);
362     unsigned scanBackwards(const CFGBlock *Start,
365     bool isDeadCodeRoot(const CFGBlock *Block);
367     const Stmt *findDeadCode(const CFGBlock *Block);
369     void reportDeadCode(const CFGBlock *B,
375 void DeadCodeScan::enqueue(const CFGBlock *block) {  in enqueue()
383 bool DeadCodeScan::isDeadCodeRoot(const clang::CFGBlock *Block) {  in isDeadCodeRoot()
386   for (CFGBlock::const_pred_iterator I = Block->pred_begin(),  in isDeadCodeRoot()
388     if (const CFGBlock *PredBlock = *I) {  in isDeadCodeRoot()
414 const Stmt *DeadCodeScan::findDeadCode(const clang::CFGBlock *Block) {  in findDeadCode()
415   for (CFGBlock::const_iterator I = Block->begin(), E = Block->end(); I!=E; ++I)  in findDeadCode()
433 static int SrcCmp(const std::pair<const CFGBlock *, const Stmt *> *p1,  in SrcCmp()  argument
434                   const std::pair<const CFGBlock *, const Stmt *> *p2) {  in SrcCmp()
442 unsigned DeadCodeScan::scanBackwards(const clang::CFGBlock *Start,  in scanBackwards()
449     const CFGBlock *Block = WorkList.pop_back_val();  in scanBackwards()
461       for (CFGBlock::const_pred_iterator I = Block->pred_begin(),  in scanBackwards()
463         if (const CFGBlock *predBlock = *I)  in scanBackwards()
493       const CFGBlock *Block = I->first;  in scanBackwards()
569 void DeadCodeScan::reportDeadCode(const CFGBlock *B,  in reportDeadCode()
609     CFGBlock::const_pred_iterator PI = B->pred_begin();  in reportDeadCode()
611       if (const CFGBlock *PredBlock = PI->getPossiblyUnreachableBlock()) {  in reportDeadCode()
632 unsigned ScanReachableFromBlock(const CFGBlock *Start,  in ScanReachableFromBlock()
666     const CFGBlock *block = *I;  in FindUnreachableCode()