Merging upstream version 1.72.1+dfsg1.

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

1 files changed, 24 insertions, 0 deletions

diff --git a/tests/ui/transmutability/references/unit-to-itself.rs b/tests/ui/transmutability/references/unit-to-itself.rs
new file mode 100644
index 000000000..04a7e16d7
--- /dev/null
+++ b/tests/ui/transmutability/references/unit-to-itself.rs
@@ -0,0 +1,24 @@
+// check-pass
+#![feature(transmutability)]
+
+mod assert {
+    use std::mem::{Assume, BikeshedIntrinsicFrom};
+    pub struct Context;
+
+    pub fn is_maybe_transmutable<Src, Dst>()
+    where
+        Dst: BikeshedIntrinsicFrom<Src, Context, {
+            Assume {
+                alignment: true,
+                lifetimes: false,
+                safety: true,
+                validity: false,
+            }
+        }>
+    {}
+}
+
+fn main() {
+    #[repr(C)] struct Unit;
+    assert::is_maybe_transmutable::<&'static Unit, &'static Unit>();
+}