extern bool mips_pad_arg_upward (enum machine_mode, tree);
extern bool mips_pad_reg_upward (enum machine_mode, tree);
extern void mips_va_start (tree, rtx);
-extern struct rtx_def *mips_va_arg (tree, tree);
extern bool mips_expand_unaligned_load (rtx, rtx, unsigned int, int);
extern bool mips_expand_unaligned_store (rtx, rtx, unsigned int, int);
extern void mips_expand_epilogue (int);
extern int mips_can_use_return_insn (void);
extern struct rtx_def *mips_function_value (tree, tree, enum machine_mode);
-extern int function_arg_pass_by_reference (const CUMULATIVE_ARGS *,
- enum machine_mode, tree, int);
extern bool mips_cannot_change_mode_class (enum machine_mode,
enum machine_mode, enum reg_class);