From 846b36833eaf8bf6f8412e2b6b2bdc49d4359803 Mon Sep 17 00:00:00 2001
From: Johannes Oertel <johannes.oertel@uni-due.de>
Date: Sat, 2 May 2015 11:54:51 +0200
Subject: [PATCH] Add regression test for #12511

Closes #12511.
---
 src/test/compile-fail/issue-12511.rs | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 src/test/compile-fail/issue-12511.rs

diff --git a/src/test/compile-fail/issue-12511.rs b/src/test/compile-fail/issue-12511.rs
new file mode 100644
index 000000000000..35697e687341
--- /dev/null
+++ b/src/test/compile-fail/issue-12511.rs
@@ -0,0 +1,19 @@
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+trait t1 : t2 {
+//~^ ERROR: unsupported cyclic reference between types/traits detected
+}
+
+trait t2 : t1 {
+//~^ ERROR: unsupported cyclic reference between types/traits detected
+}
+
+fn main() { }