rust/src/test/run-pass/issues/issue-18353.rs

// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

// run-pass
// Test that wrapping an unsized struct in an enum which gets optimised does
// not ICE.

// pretty-expanded FIXME #23616

struct Str {
    f: [u8]
}

fn main() {
    let str: Option<&Str> = None;
    str.is_some();
}