265 

   265 

   266   // Support for GC barriers emitted during parsing

   266   // Support for GC barriers emitted during parsing

   267   virtual bool has_load_barriers() const { return false; }

   267   virtual bool has_load_barriers() const { return false; }

   268   virtual bool is_gc_barrier_node(Node* node) const { return false; }

   268   virtual bool is_gc_barrier_node(Node* node) const { return false; }

   269   virtual Node* step_over_gc_barrier(Node* c) const { return c; }

   269   virtual Node* step_over_gc_barrier(Node* c) const { return c; }

   270 

   271 

   271   // Support for macro expanded GC barriers

   272   // Support for macro expanded GC barriers

   272   virtual void register_potential_barrier_node(Node* node) const { }

   273   virtual void register_potential_barrier_node(Node* node) const { }

   273   virtual void unregister_potential_barrier_node(Node* node) const { }

   274   virtual void unregister_potential_barrier_node(Node* node) const { }

   274   virtual void eliminate_gc_barrier(PhaseMacroExpand* macro, Node* node) const { }

   275   virtual void eliminate_gc_barrier(PhaseMacroExpand* macro, Node* node) const { }