40 class Loop {
42   using ChildrenList = std::vector<Loop*>;
49   explicit Loop(IRContext* context)  in Loop()  function
59   Loop(IRContext* context, DominatorAnalysis* analysis, BasicBlock* header,
160     for (const Loop* loop = GetParent(); loop; loop = loop->GetParent()) lvl++;  in GetDepth()
169   inline void AddNestedLoop(Loop* nested) {  in AddNestedLoop()
175   inline Loop* GetParent() { return parent_; }  in GetParent()
176   inline const Loop* GetParent() const { return parent_; }  in GetParent()
208     for (Loop* loop = this; loop != nullptr; loop = loop->parent_) {  in AddBasicBlock()
217     for (Loop* loop = this; loop != nullptr; loop = loop->parent_) {  in RemoveBasicBlock()
268   inline void RemoveChildLoop(Loop* loop) {  in RemoveChildLoop()
283     for (const Loop* child : nested_loops_) {  in AreAllChildrenMarkedForRemoval()
297   inline void SetParent(Loop* parent) { parent_ = parent; }  in SetParent()
375   Loop* parent_;
421   using iterator = PostOrderTreeDFIterator<Loop>;
422   using const_iterator = PostOrderTreeDFIterator<const Loop>;
424   using pre_iterator = TreeDFIterator<Loop>;
425   using const_pre_iterator = TreeDFIterator<const Loop>;
451   inline Loop& GetLoopByIndex(size_t index) const {  in GetLoopByIndex()
459   std::vector<Loop*> GetLoopsInBinaryLayoutOrder();
462   inline Loop* operator[](uint32_t block_id) const {
467   inline Loop* operator[](const BasicBlock* bb) const {
496   inline void SetBasicBlockToLoop(uint32_t bb_id, Loop* loop) {  in SetBasicBlockToLoop()
502   inline void AddLoop(Loop* loop_to_add, Loop* parent) {  in AddLoop()
521   Loop* AddLoopNest(std::unique_ptr<Loop> new_loop);
524   void RemoveLoop(Loop* loop);
526   void SetAsTopLoop(Loop* loop) {  in SetAsTopLoop()
533   Loop* GetDummyRootLoop() { return &dummy_top_loop_; }  in GetDummyRootLoop()
534   const Loop* GetDummyRootLoop() const { return &dummy_top_loop_; }  in GetDummyRootLoop()
539   using LoopContainerType = std::vector<Loop*>;
540   using LoopsToAddContainerType = std::vector<std::pair<Loop*, Loop*>>;
546   inline Loop* FindLoopForBasicBlock(uint32_t block_id) const {  in FindLoopForBasicBlock()
547     std::unordered_map<uint32_t, Loop*>::const_iterator it =  in FindLoopForBasicBlock()
560   Loop dummy_top_loop_;
562   std::unordered_map<uint32_t, Loop*> basic_block_to_loop_;