extern bool mips_cannot_change_mode_class (enum machine_mode,
enum machine_mode, enum reg_class);
-extern bool mips_small_register_classes_for_mode_p (enum machine_mode);
extern bool mips_dangerous_for_la25_p (rtx);
extern bool mips_modes_tieable_p (enum machine_mode, enum machine_mode);
extern enum reg_class mips_preferred_reload_class (rtx, enum reg_class);