//@ run-pass //@ compile-flags: -C lto //@ no-prefer-dynamic //@ needs-threads use std::thread; static mut HIT: usize = 0; thread_local!(static A: Foo = Foo); struct Foo; impl Drop for Foo { fn drop(&mut self) { unsafe { HIT += 1; } } } fn main() { unsafe { assert_eq!(HIT, 0); thread::spawn(|| { assert_eq!(HIT, 0); A.with(|_| ()); assert_eq!(HIT, 0); }).join().unwrap(); assert_eq!(HIT, 1); } }