self-hosted: create tmp dir for .o files and emit .o file for fn

1 files changed, 4 insertions, 0 deletions

diff --git a/std/atomic/int.zig b/std/atomic/int.zig
index d51454c673..4103d52719 100644
--- a/std/atomic/int.zig
+++ b/std/atomic/int.zig
@@ -25,5 +25,9 @@ pub fn Int(comptime T: type) type {
         pub fn get(self: *Self) T {
             return @atomicLoad(T, &self.unprotected_value, AtomicOrder.SeqCst);
         }
+
+        pub fn xchg(self: *Self, new_value: T) T {
+            return @atomicRmw(T, &self.unprotected_value, builtin.AtomicRmwOp.Xchg, new_value, AtomicOrder.SeqCst);
+        }
     };
 }