From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:02:58 +0200
Subject: Adding upstream version 1.64.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/test/ui/union/union-basic.rs | 62 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 src/test/ui/union/union-basic.rs

(limited to 'src/test/ui/union/union-basic.rs')

diff --git a/src/test/ui/union/union-basic.rs b/src/test/ui/union/union-basic.rs
new file mode 100644
index 000000000..dcc552ac7
--- /dev/null
+++ b/src/test/ui/union/union-basic.rs
@@ -0,0 +1,62 @@
+// run-pass
+// revisions: mirunsafeck thirunsafeck
+// [thirunsafeck]compile-flags: -Z thir-unsafeck
+
+#![allow(unused_imports)]
+
+// aux-build:union.rs
+
+extern crate union;
+use std::mem::{size_of, align_of, zeroed};
+
+union U {
+    a: u8,
+    b: u16
+}
+
+fn local() {
+    assert_eq!(size_of::<U>(), 2);
+    assert_eq!(align_of::<U>(), 2);
+
+    let u = U { a: 10 };
+    unsafe {
+        assert_eq!(u.a, 10);
+        let U { a } = u;
+        assert_eq!(a, 10);
+    }
+
+    let mut w = U { b: 0 };
+    unsafe {
+        assert_eq!(w.a, 0);
+        assert_eq!(w.b, 0);
+        w.a = 1;
+        assert_eq!(w.a, 1);
+        assert_eq!(w.b.to_le(), 1);
+    }
+}
+
+fn xcrate() {
+    assert_eq!(size_of::<union::U>(), 2);
+    assert_eq!(align_of::<union::U>(), 2);
+
+    let u = union::U { a: 10 };
+    unsafe {
+        assert_eq!(u.a, 10);
+        let union::U { a } = u;
+        assert_eq!(a, 10);
+    }
+
+    let mut w = union::U { b: 0 };
+    unsafe {
+        assert_eq!(w.a, 0);
+        assert_eq!(w.b, 0);
+        w.a = 1;
+        assert_eq!(w.a, 1);
+        assert_eq!(w.b.to_le(), 1);
+    }
+}
+
+fn main() {
+    local();
+    xcrate();
+}
-- 
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