Add test for `dyn` alignment

1 files changed, 15 insertions, 0 deletions

diff --git a/tests/ui/attributes/fn-align-dyn.rs b/tests/ui/attributes/fn-align-dyn.rs
new file mode 100644
index 00000000000..d67de05e7a9
--- /dev/null
+++ b/tests/ui/attributes/fn-align-dyn.rs
@@ -0,0 +1,15 @@
+//@ run-pass
+#![feature(fn_align)]
+
+trait Test {
+    #[align(4096)]
+    fn foo(&self);
+
+    #[align(4096)]
+    fn foo1(&self);
+}
+
+fn main() {
+    assert_eq!((<dyn Test>::foo as fn(_) as usize & !1) % 4096, 0);
+    assert_eq!((<dyn Test>::foo1 as fn(_) as usize & !1) % 4096, 0);
+}