378 

   378 

   379 #ifndef PRODUCT

   379 #ifndef PRODUCT

   380   bool _trace_opto_pipelining;  // tracing flag

   380   bool _trace_opto_pipelining;  // tracing flag

   381 #endif

   381 #endif

   382 

   382 

   383   // Build dominators

   387   // Build dominators

   384   void Dominators();

   388   void Dominators();

   385 

   389 

   386   // Estimate block frequencies based on IfNode probabilities

   390   // Estimate block frequencies based on IfNode probabilities

   387   void Estimate_Block_Frequency();

   391   void Estimate_Block_Frequency();