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// We want to control preemption here. Stacked borrows interferes by having its own accesses.
//@compile-flags: -Zmiri-preemption-rate=0 -Zmiri-disable-stacked-borrows
use std::sync::atomic::AtomicUsize;
use std::sync::atomic::Ordering;
use std::thread::spawn;
#[derive(Copy, Clone)]
struct EvilSend<T>(pub T);
unsafe impl<T> Send for EvilSend<T> {}
unsafe impl<T> Sync for EvilSend<T> {}
pub fn main() {
let mut a = AtomicUsize::new(0);
let b = &mut a as *mut AtomicUsize;
let c = EvilSend(b);
unsafe {
let j1 = spawn(move || {
let atomic_ref = &mut *c.0;
atomic_ref.load(Ordering::SeqCst)
});
let j2 = spawn(move || {
let atomic_ref = &mut *c.0;
*atomic_ref.get_mut() = 32; //~ ERROR: Data race detected between (1) Atomic Load on thread `<unnamed>` and (2) Write on thread `<unnamed>`
});
j1.join().unwrap();
j2.join().unwrap();
}
}
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