1 files changed, 20 insertions, 0 deletions
diff --git a/tests/run-make/extern-fn-with-packed-struct/test.rs b/tests/run-make/extern-fn-with-packed-struct/test.rs
new file mode 100644
index 00000000000..2f261efb510
--- /dev/null
+++ b/tests/run-make/extern-fn-with-packed-struct/test.rs
@@ -0,0 +1,20 @@
+#[repr(C, packed)]
+#[derive(Copy, Clone, Debug, PartialEq)]
+struct Foo {
+    a: i8,
+    b: i16,
+    c: i8,
+}
+
+#[link(name = "test", kind = "static")]
+extern "C" {
+    fn foo(f: Foo) -> Foo;
+}
+
+fn main() {
+    unsafe {
+        let a = Foo { a: 1, b: 2, c: 3 };
+        let b = foo(a);
+        assert_eq!(a, b);
+    }
+}