+int be_is_Spill(const ir_node *irn);
+int be_is_Reload(const ir_node *irn);
+int be_is_Copy(const ir_node *irn);
+int be_is_Perm(const ir_node *irn);
+
+void set_Spill_offset(ir_node *irn, unsigned offset);
+unsigned get_Spill_offset(ir_node *irn);
+
+ir_node *get_Spill_context(const ir_node *irn);