rust/tests/ui/rfcs/rfc-2396-target_feature-11/closures-inherit-target_feature.rs

// Tests #73631: closures inherit `#[target_feature]` annotations

//@ check-pass
//@ only-x86_64

#[target_feature(enable = "avx")]
fn also_use_avx() {
    println!("Hello from AVX")
}

#[target_feature(enable = "avx")]
fn use_avx() -> Box<dyn Fn()> {
    Box::new(|| also_use_avx())
}

fn main() {}