1 files changed, 16 insertions, 0 deletions
diff --git a/tests/ui/intrinsics-always-extern.rs b/tests/ui/intrinsics-always-extern.rs
new file mode 100644
index 000000000..22951147d
--- /dev/null
+++ b/tests/ui/intrinsics-always-extern.rs
@@ -0,0 +1,16 @@
+#![feature(intrinsics)]
+
+trait Foo {
+    extern "rust-intrinsic" fn foo(&self); //~ ERROR intrinsic must
+}
+
+impl Foo for () {
+    extern "rust-intrinsic" fn foo(&self) { //~ ERROR intrinsic must
+    }
+}
+
+extern "rust-intrinsic" fn hello() {//~ ERROR intrinsic must
+}
+
+fn main() {
+}