1 files changed, 15 insertions, 0 deletions
diff --git a/src/test/ui/extern/extern-types-size_of_val.rs b/src/test/ui/extern/extern-types-size_of_val.rs
new file mode 100644
index 000000000..3b02ea28e
--- /dev/null
+++ b/src/test/ui/extern/extern-types-size_of_val.rs
@@ -0,0 +1,15 @@
+// run-pass
+#![feature(extern_types)]
+
+use std::mem::{align_of_val, size_of_val};
+
+extern "C" {
+    type A;
+}
+
+fn main() {
+    let x: &A = unsafe { &*(1usize as *const A) };
+
+    assert_eq!(size_of_val(x), 0);
+    assert_eq!(align_of_val(x), 1);
+}