Compute the layout of uninhabited structs

1 files changed, 20 insertions, 0 deletions

diff --git a/src/test/ui/issues/issue-64506.rs b/src/test/ui/issues/issue-64506.rs
new file mode 100644
index 00000000000..db3e85a7bdf
--- /dev/null
+++ b/src/test/ui/issues/issue-64506.rs
@@ -0,0 +1,20 @@
+// check-pass
+
+#[derive(Copy, Clone)]
+pub struct ChildStdin {
+    inner: AnonPipe,
+}
+
+#[derive(Copy, Clone)]
+enum AnonPipe {}
+
+const FOO: () = {
+    union Foo {
+        a: ChildStdin,
+        b: (),
+    }
+    let x = unsafe { Foo { b: () }.a };
+    let x = &x.inner;
+};
+
+fn main() {}