File: volatile_order.rs

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rustc 1.86.0%2Bdfsg1-1
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#![crate_type = "lib"]
#![feature(core_intrinsics)]

use std::intrinsics::*;

pub unsafe fn test_volatile_order() {
    let mut a: Box<u8> = Box::new(0);
    // CHECK: load volatile
    let x = volatile_load(&*a);
    // CHECK: load volatile
    let x = volatile_load(&*a);
    // CHECK: store volatile
    volatile_store(&mut *a, 12);
    // CHECK: store volatile
    unaligned_volatile_store(&mut *a, 12);
    // CHECK: llvm.memset.p0
    volatile_set_memory(&mut *a, 12, 1)
}