From bc1bd8a609823814079996ca3ca0b05774e07a74 Mon Sep 17 00:00:00 2001
From: Jorge Aparicio <japaricious@gmail.com>
Date: Sun, 5 Mar 2017 23:03:42 -0500
Subject: [PATCH] add tracking issue and feature-gate and run-make tests

---
 src/test/compile-fail/feature-gate-used.rs | 15 +++++++++++++++
 src/test/run-make/used/Makefile            | 12 ++++++++++++
 src/test/run-make/used/used.rs             | 17 +++++++++++++++++
 3 files changed, 44 insertions(+)
 create mode 100644 src/test/compile-fail/feature-gate-used.rs
 create mode 100644 src/test/run-make/used/Makefile
 create mode 100644 src/test/run-make/used/used.rs

diff --git a/src/test/compile-fail/feature-gate-used.rs b/src/test/compile-fail/feature-gate-used.rs
new file mode 100644
index 000000000000..68679d7dac89
--- /dev/null
+++ b/src/test/compile-fail/feature-gate-used.rs
@@ -0,0 +1,15 @@
+// Copyright 2017 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.
+
+#[used]
+fn foo() {}
+//~^^ ERROR the `#[used]` attribute is an experimental feature
+
+fn main() {}
diff --git a/src/test/run-make/used/Makefile b/src/test/run-make/used/Makefile
new file mode 100644
index 000000000000..70ac2e3802b8
--- /dev/null
+++ b/src/test/run-make/used/Makefile
@@ -0,0 +1,12 @@
+-include ../tools.mk
+
+ifdef IS_WINDOWS
+# Do nothing on MSVC.
+all:
+	exit 0
+else
+all:
+	$(RUSTC) -C opt-level=3 --emit=obj used.rs
+	nm -C used.o | grep FOO
+	nm -C used.o | grep -v BAR
+endif
diff --git a/src/test/run-make/used/used.rs b/src/test/run-make/used/used.rs
new file mode 100644
index 000000000000..186cd0fdf5e3
--- /dev/null
+++ b/src/test/run-make/used/used.rs
@@ -0,0 +1,17 @@
+// Copyright 2017 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.
+
+#![crate_type = "lib"]
+#![feature(used)]
+
+#[used]
+static FOO: u32 = 0;
+
+static BAR: u32 = 0;