src/test/codegen/intrinsics/volatile_order.rs

   1 #![crate_type = "lib"]
   2 #![feature(core_intrinsics)]
   3
   4 use std::intrinsics::*;
   5
   6 pub unsafe fn test_volatile_order() {
   7     let mut a: Box<u8> = Box::new(0);
   8     // CHECK: load volatile
   9     let x = volatile_load(&*a);
  10     // CHECK: load volatile
  11     let x = volatile_load(&*a);
  12     // CHECK: store volatile
  13     volatile_store(&mut *a, 12);
  14     // CHECK: store volatile
  15     unaligned_volatile_store(&mut *a, 12);
  16     // CHECK: llvm.memset.p0i8
  17     volatile_set_memory(&mut *a, 12, 1)
  18 }