From ac015de5137becebf7358b1642fa08462e3df4d7 Mon Sep 17 00:00:00 2001
From: b-naber <b_naber@gmx.de>
Date: Sun, 28 May 2023 21:36:58 +0000
Subject: [PATCH] add test for #96084

---
 tests/ui/async-await/issue-96084.rs | 33 +++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 tests/ui/async-await/issue-96084.rs

diff --git a/tests/ui/async-await/issue-96084.rs b/tests/ui/async-await/issue-96084.rs
new file mode 100644
index 0000000000000..7e84c155330a3
--- /dev/null
+++ b/tests/ui/async-await/issue-96084.rs
@@ -0,0 +1,33 @@
+// run-pass
+// edition:2018
+
+use std::mem;
+
+async fn foo() {
+    let x = [0u8; 100];
+    async {}.await;
+    println!("{}", x.len());
+}
+
+async fn a() {
+    let fut = foo();
+    let fut = fut;
+    fut.await;
+}
+
+async fn b() {
+    let fut = foo();
+    println!("{}", mem::size_of_val(&fut));
+    let fut = fut;
+    fut.await;
+}
+
+fn main() {
+    assert_eq!(mem::size_of_val(&foo()), 102);
+
+    // 1 + sizeof(foo)
+    assert_eq!(mem::size_of_val(&a()), 103);
+
+    // 1 + (sizeof(foo) * 2)
+    assert_eq!(mem::size_of_val(&b()), 103);
+}