Function binary_pairwise

cranelift/interpreter/src/step.rs:1591–1610

Performs the supplied pairwise arithmetic `op` on two SIMD vectors, where pairs are formed from adjacent vector elements and the vectors are concatenated at the end.

(
    x: DataValue,
    y: DataValue,
    vector_type: types::Type,
    op: F,
)

/// pairs are formed from adjacent vector elements and the vectors are
/// concatenated at the end.
fn binary_pairwise<F>(
    x: DataValue,
    y: DataValue,
    vector_type: types::Type,
    op: F,
) -> ValueResult<DataValue>
where
    F: Fn(DataValue, DataValue) -> ValueResult<DataValue>,
{
    let arg0 = extractlanes(&x, vector_type)?;
    let arg1 = extractlanes(&y, vector_type)?;

    let result = arg0
        .chunks(2)
        .chain(arg1.chunks(2))
        .map(|pair| op(pair[0].clone(), pair[1].clone()))
        .collect::<ValueResult<SimdVec<DataValue>>>()?;

    vectorizelanes(&result, vector_type)
}

fn bitselect(c: DataValue, x: DataValue, y: DataValue) -> ValueResult<DataValue> {
    let mask_x = DataValueExt::and(c.clone(), x)?;