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-rw-r--r--tests/run-make/volatile-intrinsics/main.rs24
1 files changed, 24 insertions, 0 deletions
diff --git a/tests/run-make/volatile-intrinsics/main.rs b/tests/run-make/volatile-intrinsics/main.rs
new file mode 100644
index 000000000..4295d95f3
--- /dev/null
+++ b/tests/run-make/volatile-intrinsics/main.rs
@@ -0,0 +1,24 @@
+#![feature(core_intrinsics, volatile)]
+
+use std::intrinsics::{
+ unaligned_volatile_load, unaligned_volatile_store, volatile_load, volatile_store,
+};
+use std::ptr::{read_volatile, write_volatile};
+
+pub fn main() {
+ unsafe {
+ let mut i: isize = 1;
+ volatile_store(&mut i, 2);
+ assert_eq!(volatile_load(&i), 2);
+ }
+ unsafe {
+ let mut i: isize = 1;
+ unaligned_volatile_store(&mut i, 2);
+ assert_eq!(unaligned_volatile_load(&i), 2);
+ }
+ unsafe {
+ let mut i: isize = 1;
+ write_volatile(&mut i, 2);
+ assert_eq!(read_volatile(&i), 2);
+ }
+}