1 files changed, 17 insertions, 0 deletions
diff --git a/src/test/ui/dyn-star/align.rs b/src/test/ui/dyn-star/align.rs
new file mode 100644
index 000000000..fb41a05a0
--- /dev/null
+++ b/src/test/ui/dyn-star/align.rs
@@ -0,0 +1,17 @@
+// revisions: normal over_aligned
+//[normal] check-pass
+
+#![feature(dyn_star)]
+//~^ WARN the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes
+
+use std::fmt::Debug;
+
+#[cfg_attr(over_aligned,      repr(C, align(1024)))]
+#[cfg_attr(not(over_aligned), repr(C))]
+#[derive(Debug)]
+struct AlignedUsize(usize);
+
+fn main() {
+    let x = AlignedUsize(12) as dyn* Debug;
+    //[over_aligned]~^ ERROR `AlignedUsize` needs to be a pointer-sized type
+}