void aarch64_expand_epilogue (bool);
void aarch64_expand_mov_immediate (rtx, rtx, rtx (*) (rtx, rtx) = 0);
rtx aarch64_ptrue_reg (machine_mode);
+rtx aarch64_pfalse_reg (machine_mode);
void aarch64_emit_sve_pred_move (rtx, rtx, rtx);
void aarch64_expand_sve_mem_move (rtx, rtx, machine_mode);
bool aarch64_maybe_expand_sve_subreg_move (rtx, rtx);