77   // Helper for unsafe accesses, that may or may not be on the referent field.
 78   // Generates the guards that check whether the result of
 79   // Unsafe.getReference should be recorded in an SATB log buffer.
 80   void insert_pre_barrier(GraphKit* kit, Node* base_oop, Node* offset, Node* pre_val, bool need_mem_bar) const;
 81 
 82   static const TypeFunc* write_ref_field_pre_entry_Type();
 83   static const TypeFunc* write_ref_field_post_entry_Type();
 84 
 85   virtual Node* load_at_resolved(C2Access& access, const Type* val_type) const;
 86 
 87 #ifdef ASSERT
 88   bool has_cas_in_use_chain(Node* x) const;
 89   void verify_pre_load(Node* marking_check_if, Unique_Node_List& loads /*output*/) const;
 90   void verify_no_safepoints(Compile* compile, Node* marking_load, const Unique_Node_List& loads) const;
 91 #endif
 92 
 93   static bool is_g1_pre_val_load(Node* n);
 94 public:
 95   virtual bool is_gc_pre_barrier_node(Node* node) const;
 96   virtual bool is_gc_barrier_node(Node* node) const;
 97   virtual void eliminate_gc_barrier(PhaseMacroExpand* macro, Node* node) const;
 98   virtual Node* step_over_gc_barrier(Node* c) const;
 99 
100 #ifdef ASSERT
101   virtual void verify_gc_barriers(Compile* compile, CompilePhase phase) const;
102 #endif
103 
104   virtual bool escape_add_to_con_graph(ConnectionGraph* conn_graph, PhaseGVN* gvn, Unique_Node_List* delayed_worklist, Node* n, uint opcode) const;
105 };
106 
107 #endif // SHARE_GC_G1_C2_G1BARRIERSETC2_HPP

 77   // Helper for unsafe accesses, that may or may not be on the referent field.
 78   // Generates the guards that check whether the result of
 79   // Unsafe.getReference should be recorded in an SATB log buffer.
 80   void insert_pre_barrier(GraphKit* kit, Node* base_oop, Node* offset, Node* pre_val, bool need_mem_bar) const;
 81 
 82   static const TypeFunc* write_ref_field_pre_entry_Type();
 83   static const TypeFunc* write_ref_field_post_entry_Type();
 84 
 85   virtual Node* load_at_resolved(C2Access& access, const Type* val_type) const;
 86 
 87 #ifdef ASSERT
 88   bool has_cas_in_use_chain(Node* x) const;
 89   void verify_pre_load(Node* marking_check_if, Unique_Node_List& loads /*output*/) const;
 90   void verify_no_safepoints(Compile* compile, Node* marking_load, const Unique_Node_List& loads) const;
 91 #endif
 92 
 93   static bool is_g1_pre_val_load(Node* n);
 94 public:
 95   virtual bool is_gc_pre_barrier_node(Node* node) const;
 96   virtual bool is_gc_barrier_node(Node* node) const;
 97   virtual void eliminate_gc_barrier(PhaseIterGVN* igvn, Node* node) const;
 98   virtual Node* step_over_gc_barrier(Node* c) const;
 99 
100 #ifdef ASSERT
101   virtual void verify_gc_barriers(Compile* compile, CompilePhase phase) const;
102 #endif
103 
104   virtual bool escape_add_to_con_graph(ConnectionGraph* conn_graph, PhaseGVN* gvn, Unique_Node_List* delayed_worklist, Node* n, uint opcode) const;
105 };
106 
107 #endif // SHARE_GC_G1_C2_G1BARRIERSETC2_HPP