// Copyright 2017 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.
//
// compile-flags: -O

use std::collections::HashSet;

#[derive(PartialEq, Debug, Hash, Eq, Clone, PartialOrd, Ord)]
enum MyEnum {
    E0,

    E1,

    E2,
    E3,
    E4,

    E5,
    E6,
    E7,
}


fn main() {
    use MyEnum::*;
    let s: HashSet<_> = [E4, E1].iter().cloned().collect();
    let mut v: Vec<_> = s.into_iter().collect();
    v.sort();

    assert_eq!([E1, E4], &v[..]);
}

Add test for wrong code generation for HashSet creation on arm cpu
Add test for wrong code generation for HashSet creation on arm cpu

This is test for #42918.
To reproduce bug you need machine with arm cpu and compile with optimization.
I tried with rustc 1.19.0-nightly (3d5b8c626 2017-06-09),
if compile test with -C opt-level=3 for target=arm-linux-androideabi
and run on "Qualcomm MSM 8974 arm cpu" then assert fails,
if compile and run with -C opt-level=2 it gives segmentation fault.
So I add `compile-flags: -O`.
With rustc 1.19.0 (0ade33941 2017-07-17) all works fine.
Closes #42918
