bytes/src/loom.rs

#[cfg(not(all(test, loom)))]
pub(crate) mod sync {
    pub(crate) mod atomic {
        pub(crate) use core::sync::atomic::{fence, AtomicPtr, AtomicUsize, Ordering};
    }
}

#[cfg(all(test, loom))]
pub(crate) use ::loom::sync;