1 files changed, 44 insertions, 0 deletions
diff --git a/tests/ui/packed/packed-struct-generic-size.rs b/tests/ui/packed/packed-struct-generic-size.rs
new file mode 100644
index 00000000000..7c93e46c30c
--- /dev/null
+++ b/tests/ui/packed/packed-struct-generic-size.rs
@@ -0,0 +1,44 @@
+// run-pass
+#![allow(dead_code)]
+#![allow(unused_comparisons)]
+
+use std::mem;
+
+#[repr(packed)]
+struct P1<T, S> {
+    a: T,
+    b: u8,
+    c: S
+}
+
+#[repr(packed(2))]
+struct P2<T, S> {
+    a: T,
+    b: u8,
+    c: S
+}
+
+#[repr(C, packed(4))]
+struct P4C<T, S> {
+    a: T,
+    b: u8,
+    c: S
+}
+
+macro_rules! check {
+    ($t:ty, $align:expr, $size:expr) => ({
+        assert_eq!(mem::align_of::<$t>(), $align);
+        assert_eq!(mem::size_of::<$t>(), $size);
+    });
+}
+
+pub fn main() {
+    check!(P1<u8, u8>, 1, 3);
+    check!(P1<u64, u16>, 1, 11);
+
+    check!(P2<u8, u8>, 1, 3);
+    check!(P2<u64, u16>, 2, 12);
+
+    check!(P4C<u8, u8>, 1, 3);
+    check!(P4C<u16, u64>, 4, 12);
+}