271   virtual void add_users_to_worklist(Unique_Node_List* worklist) const {}
 272 
 273   // Allow barrier sets to have shared state that is preserved across a compilation unit.
 274   // This could for example comprise macro nodes to be expanded during macro expansion.
 275   virtual void* create_barrier_state(Arena* comp_arena) const { return NULL; }
 276   // If the BarrierSetC2 state has kept macro nodes in its compilation unit state to be
 277   // expanded later, then now is the time to do so.
 278   virtual bool expand_macro_nodes(PhaseMacroExpand* macro) const { return false; }
 279 
 280   enum CompilePhase {
 281     BeforeOptimize, /* post_parse = true */
 282     BeforeExpand, /* post_parse = false */
 283     BeforeCodeGen
 284   };
 285   virtual void verify_gc_barriers(Compile* compile, CompilePhase phase) const {}
 286 
 287   virtual bool flatten_gc_alias_type(const TypePtr*& adr_type) const { return false; }
 288 #ifdef ASSERT
 289   virtual bool verify_gc_alias_type(const TypePtr* adr_type, int offset) const { return false; }
 290 #endif



 291 };
 292 
 293 #endif // SHARE_GC_SHARED_C2_BARRIERSETC2_HPP

 271   virtual void add_users_to_worklist(Unique_Node_List* worklist) const {}
 272 
 273   // Allow barrier sets to have shared state that is preserved across a compilation unit.
 274   // This could for example comprise macro nodes to be expanded during macro expansion.
 275   virtual void* create_barrier_state(Arena* comp_arena) const { return NULL; }
 276   // If the BarrierSetC2 state has kept macro nodes in its compilation unit state to be
 277   // expanded later, then now is the time to do so.
 278   virtual bool expand_macro_nodes(PhaseMacroExpand* macro) const { return false; }
 279 
 280   enum CompilePhase {
 281     BeforeOptimize, /* post_parse = true */
 282     BeforeExpand, /* post_parse = false */
 283     BeforeCodeGen
 284   };
 285   virtual void verify_gc_barriers(Compile* compile, CompilePhase phase) const {}
 286 
 287   virtual bool flatten_gc_alias_type(const TypePtr*& adr_type) const { return false; }
 288 #ifdef ASSERT
 289   virtual bool verify_gc_alias_type(const TypePtr* adr_type, int offset) const { return false; }
 290 #endif
 291 
 292   virtual bool final_graph_reshaping(Compile* compile, Node* n, uint opcode) const { return false; }
 293 
 294 };
 295 
 296 #endif // SHARE_GC_SHARED_C2_BARRIERSETC2_HPP