-#define get_irn_col(irn) arch_register_get_index(arch_get_irn_register(irn))
-#define set_irn_col(co, irn, col) arch_set_irn_register((co)->aenv, irn, arch_register_for_index((co)->cls, col))
-#define is_curr_reg_class(co, irn) (arch_get_irn_reg_class(irn, -1) == (co)->cls)
+#define get_irn_col(irn) arch_register_get_index(arch_get_irn_register(irn))
+#define set_irn_col(co, irn, col) arch_set_irn_register(irn, arch_register_for_index((co)->cls, col))