49 static bool isTrivialDoWhile(const CFGBlock *B, const Stmt *S) {  in isTrivialDoWhile()
69 static bool isBuiltinAssumeFalse(const CFGBlock *B, const Stmt *S,  in isBuiltinAssumeFalse()
84 static bool isDeadReturn(const CFGBlock *B, const Stmt *S) {  in isDeadReturn()
88   const CFGBlock *Current = B;  in isDeadReturn()
90     for (CFGBlock::const_reverse_iterator I = Current->rbegin(),  in isDeadReturn()
294 static bool shouldTreatSuccessorsAsReachable(const CFGBlock *B,  in shouldTreatSuccessorsAsReachable()
309 static unsigned scanFromBlock(const CFGBlock *Start,  in scanFromBlock()
316   SmallVector<const CFGBlock*, 32> WL;  in scanFromBlock()
329     const CFGBlock *item = WL.pop_back_val();  in scanFromBlock()
341     for (CFGBlock::const_succ_iterator I = item->succ_begin(),  in scanFromBlock()
343       const CFGBlock *B = *I;  in scanFromBlock()
345         const CFGBlock *UB = I->getPossiblyUnreachableBlock();  in scanFromBlock()
375 static unsigned scanMaybeReachableFromBlock(const CFGBlock *Start,  in scanMaybeReachableFromBlock()
389     SmallVector<const CFGBlock *, 10> WorkList;
393     typedef SmallVector<std::pair<const CFGBlock *, const Stmt *>, 12>
404     void enqueue(const CFGBlock *block);
405     unsigned scanBackwards(const CFGBlock *Start,
408     bool isDeadCodeRoot(const CFGBlock *Block);
410     const Stmt *findDeadCode(const CFGBlock *Block);
412     void reportDeadCode(const CFGBlock *B,
418 void DeadCodeScan::enqueue(const CFGBlock *block) {  in enqueue()
426 bool DeadCodeScan::isDeadCodeRoot(const clang::CFGBlock *Block) {  in isDeadCodeRoot()
429   for (CFGBlock::const_pred_iterator I = Block->pred_begin(),  in isDeadCodeRoot()
431     if (const CFGBlock *PredBlock = *I) {  in isDeadCodeRoot()
457 const Stmt *DeadCodeScan::findDeadCode(const clang::CFGBlock *Block) {  in findDeadCode()
458   for (CFGBlock::const_iterator I = Block->begin(), E = Block->end(); I!=E; ++I)  in findDeadCode()
475 static int SrcCmp(const std::pair<const CFGBlock *, const Stmt *> *p1,  in SrcCmp()  argument
476                   const std::pair<const CFGBlock *, const Stmt *> *p2) {  in SrcCmp()
484 unsigned DeadCodeScan::scanBackwards(const clang::CFGBlock *Start,  in scanBackwards()
491     const CFGBlock *Block = WorkList.pop_back_val();  in scanBackwards()
503       for (CFGBlock::const_pred_iterator I = Block->pred_begin(),  in scanBackwards()
505         if (const CFGBlock *predBlock = *I)  in scanBackwards()
535       const CFGBlock *Block = I->first;  in scanBackwards()
611 void DeadCodeScan::reportDeadCode(const CFGBlock *B,  in reportDeadCode()
651     CFGBlock::const_pred_iterator PI = B->pred_begin();  in reportDeadCode()
653       if (const CFGBlock *PredBlock = PI->getPossiblyUnreachableBlock()) {  in reportDeadCode()
674 unsigned ScanReachableFromBlock(const CFGBlock *Start,  in ScanReachableFromBlock()
708     const CFGBlock *block = *I;  in FindUnreachableCode()