54   struct LoopNode : public ArenaObject<kArenaAllocLoopOptimization> {  struct
55     explicit LoopNode(HLoopInformation* lp_info)  in LoopNode()  function
62     LoopNode* outer;  argument
63     LoopNode* inner;  argument
64     LoopNode* previous;  argument
65     LoopNode* next;  argument
127   void RemoveLoop(LoopNode* node);
131   bool TraverseLoopsInnerToOuter(LoopNode* node);
137   void SimplifyInduction(LoopNode* node);
138   void SimplifyBlocks(LoopNode* node);
142   bool TryOptimizeInnerLoopFinite(LoopNode* node);
145   bool OptimizeInnerLoop(LoopNode* node);
166   bool TryPeelingAndUnrolling(LoopNode* node);
172   bool ShouldVectorize(LoopNode* node, HBasicBlock* block, int64_t trip_count);
173   void Vectorize(LoopNode* node, HBasicBlock* block, HBasicBlock* exit, int64_t trip_count);
174   void GenerateNewLoop(LoopNode* node,
181   bool VectorizeDef(LoopNode* node, HInstruction* instruction, bool generate_code);
182   bool VectorizeUse(LoopNode* node,
206   bool VectorizeSaturationIdiom(LoopNode* node,
211   bool VectorizeHalvingAddIdiom(LoopNode* node,
216   bool VectorizeSADIdiom(LoopNode* node,
221   bool VectorizeDotProdIdiom(LoopNode* node,
280   LoopNode* top_loop_;
281   LoopNode* last_loop_;