369   RootNode *_root;              // Root of whole program

   369   RootNode *_root;              // Root of whole program

   370   Block_Array _bbs;             // Map Nodes to owning Basic Block

   370   Block_Array _bbs;             // Map Nodes to owning Basic Block

   371   Block *_broot;                // Basic block of root

   371   Block *_broot;                // Basic block of root

   372   uint _rpo_ctr;

   372   uint _rpo_ctr;

   373   CFGLoop* _root_loop;

   373   CFGLoop* _root_loop;

   374 

   375 

   375   // Per node latency estimation, valid only during GCM

   376   // Per node latency estimation, valid only during GCM

   376   GrowableArray<uint> _node_latency;

   377   GrowableArray<uint> _node_latency;

   377 

   378 

   378 #ifndef PRODUCT

   379 #ifndef PRODUCT

   535   }

   536   }

   536   Block* backedge_block(); // Return the block on the backedge of the loop (else NULL)

   537   Block* backedge_block(); // Return the block on the backedge of the loop (else NULL)

   537   void compute_loop_depth(int depth);

   538   void compute_loop_depth(int depth);

   538   void compute_freq(); // compute frequency with loop assuming head freq 1.0f

   539   void compute_freq(); // compute frequency with loop assuming head freq 1.0f

   539   void scale_freq();   // scale frequency by loop trip count (including outer loops)

   540   void scale_freq();   // scale frequency by loop trip count (including outer loops)

   540   bool in_loop_nest(Block* b);

   542   bool in_loop_nest(Block* b);

   541   float trip_count() const { return 1.0f / _exit_prob; }

   543   float trip_count() const { return 1.0f / _exit_prob; }

   542   virtual bool is_loop()  { return true; }

   544   virtual bool is_loop()  { return true; }

   543   int id() { return _id; }

   545   int id() { return _id; }

   544 

   546