1 files changed, 52 insertions, 0 deletions
diff --git a/tests/run-pass-valgrind/unsized-locals/long-live-the-unsized-temporary.rs b/tests/run-pass-valgrind/unsized-locals/long-live-the-unsized-temporary.rs
new file mode 100644
index 000000000..a7b905261
--- /dev/null
+++ b/tests/run-pass-valgrind/unsized-locals/long-live-the-unsized-temporary.rs
@@ -0,0 +1,52 @@
+#![allow(incomplete_features)]
+#![feature(unsized_locals, unsized_fn_params)]
+
+use std::fmt;
+
+fn gen_foo() -> Box<fmt::Display> {
+    Box::new(Box::new("foo"))
+}
+
+fn foo(x: fmt::Display) {
+    assert_eq!(x.to_string(), "foo");
+}
+
+fn foo_indirect(x: fmt::Display) {
+    foo(x);
+}
+
+fn main() {
+    foo(*gen_foo());
+    foo_indirect(*gen_foo());
+
+    {
+        let x: fmt::Display = *gen_foo();
+        foo(x);
+    }
+
+    {
+        let x: fmt::Display = *gen_foo();
+        let y: fmt::Display = *gen_foo();
+        foo(x);
+        foo(y);
+    }
+
+    {
+        let mut cnt: usize = 3;
+        let x = loop {
+            let x: fmt::Display = *gen_foo();
+            if cnt == 0 {
+                break x;
+            } else {
+                cnt -= 1;
+            }
+        };
+        foo(x);
+    }
+
+    {
+        let x: fmt::Display = *gen_foo();
+        let x = if true { x } else { *gen_foo() };
+        foo(x);
+    }
+}