//@ check-pass //@ known-bug: #49682 //@ edition:2021 // Should fail. Keeping references to thread local statics can result in a // use-after-free. #![feature(thread_local)] use std::sync::atomic::{AtomicUsize, Ordering}; use std::thread; #[allow(dead_code)] #[thread_local] static FOO: AtomicUsize = AtomicUsize::new(0); #[allow(dead_code)] async fn bar() {} #[allow(dead_code)] async fn foo() { let r = &FOO; bar().await; r.load(Ordering::SeqCst); } fn main() { // &FOO = 0x7fd1e9cbf6d0 _ = thread::spawn(|| { let g = foo(); println!("&FOO = {:p}", &FOO); g }) .join() .unwrap(); // &FOO = 0x7fd1e9cc0f50 println!("&FOO = {:p}", &FOO); // &FOO = 0x7fd1e9cbf6d0 thread::spawn(move || { println!("&FOO = {:p}", &FOO); }) .join() .unwrap(); }