Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 29 insertions, 0 deletions

diff --git a/tests/ui/structs-enums/tag-align-dyn-u64.rs b/tests/ui/structs-enums/tag-align-dyn-u64.rs
new file mode 100644
index 000000000..3f7a5e3e5
--- /dev/null
+++ b/tests/ui/structs-enums/tag-align-dyn-u64.rs
@@ -0,0 +1,29 @@
+// run-pass
+#![allow(dead_code)]
+#![allow(deprecated)]
+
+use std::mem;
+
+enum Tag<A> {
+    Tag2(A)
+}
+
+struct Rec {
+    c8: u8,
+    t: Tag<u64>
+}
+
+fn mk_rec() -> Rec {
+    return Rec { c8:0, t:Tag::Tag2(0) };
+}
+
+fn is_u64_aligned(u: &Tag<u64>) -> bool {
+    let p: usize = unsafe { mem::transmute(u) };
+    let u64_align = std::mem::min_align_of::<u64>();
+    return (p & (u64_align - 1)) == 0;
+}
+
+pub fn main() {
+    let x = mk_rec();
+    assert!(is_u64_aligned(&x.t));
+}