Function align_to

winch/codegen/src/abi/mod.rs:646–657

Align a value up to the given power-of-two-alignment. See https://sites.google.com/site/theoryofoperatingsystems/labs/malloc/align8

(value: N, alignment: N)

/// Align a value up to the given power-of-two-alignment.
// See https://sites.google.com/site/theoryofoperatingsystems/labs/malloc/align8
pub(crate) fn align_to<N>(value: N, alignment: N) -> N
where
    N: Not<Output = N>
        + BitAnd<N, Output = N>
        + Add<N, Output = N>
        + Sub<N, Output = N>
        + From<u8>
        + Copy,
{
    let alignment_mask = alignment - 1.into();
    (value + alignment_mask) & !alignment_mask
}

/// Calculates the delta needed to adjust a function's frame plus some
/// addend to a given alignment.