static void Dot3SoaVectorized(float[] xs, float[] ys, float[] zs, float[] dp) {
    for (var j = 0; j < reps; ++j) {
        for (var i = 0; i < dp.Length; i += laneWidth) {
            var x = new Vector<float>(xs, i);
            var y = new Vector<float>(ys, i);
            var z = new Vector<float>(zs, i);
            var d = x * x + y * y + z * z;
            d.CopyTo(dp, i);
        }
    }
}