bool aarch64_bitmask_imm (HOST_WIDE_INT val, machine_mode);
int aarch64_branch_cost (bool, bool);
enum aarch64_symbol_type aarch64_classify_symbolic_expression (rtx);
-bool aarch64_cannot_change_mode_class (machine_mode,
- machine_mode,
- enum reg_class);
bool aarch64_const_vec_all_same_int_p (rtx, HOST_WIDE_INT);
bool aarch64_constant_address_p (rtx);
bool aarch64_expand_movmem (rtx *);