1 files changed, 13 insertions, 0 deletions
diff --git a/tests/ui/auto-instantiate.rs b/tests/ui/auto-instantiate.rs
new file mode 100644
index 00000000000..a58b178287f
--- /dev/null
+++ b/tests/ui/auto-instantiate.rs
@@ -0,0 +1,13 @@
+// run-pass
+
+#![allow(dead_code)]
+#[derive(Debug)]
+struct Pair<T, U> { a: T, b: U }
+struct Triple { x: isize, y: isize, z: isize }
+
+fn f<T,U>(x: T, y: U) -> Pair<T, U> { return Pair {a: x, b: y}; }
+
+pub fn main() {
+    println!("{}", f(Triple {x: 3, y: 4, z: 5}, 4).a.x);
+    println!("{}", f(5, 6).a);
+}