#![feature(test)]

extern crate test;

#[inline(never)]
fn loop_fn(mut v: u64, n: u64) -> u64 {
    for i in 0..n {
        v += i;
        v ^= v >> 60;
    }
    v
}

#[bench]
fn bench(bencher: &mut test::Bencher) {
    bencher.iter(|| loop_fn(test::black_box(0), 1_000_000));
}