From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:19:13 +0200
Subject: Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 tests/ui/consts/issue-79690.rs | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 tests/ui/consts/issue-79690.rs

(limited to 'tests/ui/consts/issue-79690.rs')

diff --git a/tests/ui/consts/issue-79690.rs b/tests/ui/consts/issue-79690.rs
new file mode 100644
index 000000000..56747bf5a
--- /dev/null
+++ b/tests/ui/consts/issue-79690.rs
@@ -0,0 +1,33 @@
+// ignore-32bit
+// This test gives a different error on 32-bit architectures.
+// stderr-per-bitwidth
+
+union Transmute<T: Copy, U: Copy> {
+    t: T,
+    u: U,
+}
+trait Bar {
+    fn bar(&self) -> u32;
+}
+struct Foo {
+    foo: u32,
+    bar: bool,
+}
+impl Bar for Foo {
+    fn bar(&self) -> u32 {
+        self.foo
+    }
+}
+#[derive(Copy, Clone)]
+struct Fat<'a>(&'a Foo, &'static VTable);
+struct VTable {
+    size: Foo,
+}
+const FOO: &dyn Bar = &Foo {
+    foo: 128,
+    bar: false,
+};
+const G: Fat = unsafe { Transmute { t: FOO }.u };
+//~^ ERROR it is undefined behavior to use this value
+
+fn main() {}
-- 
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