--- /dev/null
+-include ../tools.mk
+
+# Test output to be four
+# The original error only occurred when printing, not when comparing using assert!
+
+all:
+ $(RUSTC) foo.rs -O
+ [ `$(call RUN,foo)` = "4" ]
--- /dev/null
+// 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.
+
+fn identity(a: &u32) -> &u32 { a }
+
+fn print_foo(f: &fn(&u32) -> &u32, x: &u32) {
+ print!("{}", (*f)(x));
+}
+
+fn main() {
+ let x = &4;
+ let f: fn(&u32) -> &u32 = identity;
+
+ // Didn't print 4 on optimized builds
+ print_foo(&f, x);
+}