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//@ run-pass
#![feature(core_intrinsics)]
use std::intrinsics::*;
pub fn main() {
unsafe {
let mut x: Box<u8> = Box::new(0);
let mut y: Box<u8> = Box::new(0);
// test volatile load
assert_eq!(volatile_load(&*x), 0);
*x = 1;
assert_eq!(volatile_load(&*x), 1);
// test volatile store
volatile_store(&mut *x, 2);
assert_eq!(*x, 2);
// test volatile copy memory
volatile_copy_memory(&mut *y, &*x, 1);
assert_eq!(*y, 2);
// test volatile copy non-overlapping memory
*x = 3;
volatile_copy_nonoverlapping_memory(&mut *y, &*x, 1);
assert_eq!(*y, 3);
// test volatile set memory
volatile_set_memory(&mut *x, 4, 1);
assert_eq!(*x, 4);
// test unaligned volatile load
let arr: [u8; 3] = [1, 2, 3];
let ptr = arr[1..].as_ptr() as *const u16;
assert_eq!(unaligned_volatile_load(ptr), u16::from_ne_bytes([arr[1], arr[2]]));
// test unaligned volatile store
let ptr = arr[1..].as_ptr() as *mut u16;
unaligned_volatile_store(ptr, 0);
assert_eq!(arr, [1, 0, 0]);
}
}
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