--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/run/mini/atomic1.d	Mon Jan 10 19:47:18 2011 +0100
@@ -0,0 +1,12 @@
+module mini.atomic1;
+
+pragma(intrinsic, "llvm.atomic.swap.i#.p0i#")
+    T atomic_swap(T)(T* ptr, T val);
+
+void main()
+{
+    int i = 42;
+    int j = atomic_swap(&i, 43);
+    assert(j == 42);
+    assert(i == 43);
+}