Function rustc_target::abi::call::x86_64::classify_arg

pub(in abi::call::x86_64) fn classify_arg<'a, Ty, C>(
    cx: &C, 
    arg: &ArgAbi<'a, Ty>
) -> Result<[Option<Class>; 8], Memory> where
    Ty: TyAndLayoutMethods<'a, C> + Copy,
    C: LayoutOf<Ty = Ty, TyAndLayout = TyAndLayout<'a, Ty>> + HasDataLayout,