1 files changed, 27 insertions, 0 deletions
diff --git a/src/test/ui/consts/const-fn-stability-calls.rs b/src/test/ui/consts/const-fn-stability-calls.rs
new file mode 100644
index 000000000..138679048
--- /dev/null
+++ b/src/test/ui/consts/const-fn-stability-calls.rs
@@ -0,0 +1,27 @@
+// run-pass
+#![allow(dead_code)]
+#![allow(unused_variables)]
+// Test use of const fn from another crate without a feature gate.
+
+// aux-build:const_fn_lib.rs
+
+extern crate const_fn_lib;
+
+use const_fn_lib::foo;
+
+static FOO: usize = foo();
+const BAR: usize = foo();
+
+macro_rules! constant {
+    ($n:ident: $t:ty = $v:expr) => {
+        const $n: $t = $v;
+    }
+}
+
+constant! {
+    BAZ: usize = foo()
+}
+
+fn main() {
+    let x: [usize; foo()] = [42; foo()];
+}