/// x86 64-bit m8x8 implementation
macro_rules! x86_m8x8_impl {
($id:ident) => {
cfg_if! {
fallback_impl!($id);
if #[cfg(all(target_arch = "x86_64", target_feature = "sse"))] {
x86_m8x8_sse_impl!($id);
} else {
}
};
core_intrinsics,
stmt_expr_attributes,
align_offset,
mmx_target_feature,
crate_visibility_modifier,
custom_inner_attributes
)]