rust/src/test/run-pass/issues/issue-41696.rs
2018-09-26 13:10:54 +02:00

64 lines
2.2 KiB
Rust

// 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.
// run-pass
#![allow(dead_code)]
#![allow(unused_variables)]
// this used to cause exponential code-size blowup during LLVM passes.
#![feature(test)]
extern crate test;
struct MayUnwind;
impl Drop for MayUnwind {
fn drop(&mut self) {
if test::black_box(false) {
panic!()
}
}
}
struct DS<U> {
may_unwind: MayUnwind,
name: String,
next: U,
}
fn add<U>(ds: DS<U>, name: String) -> DS<DS<U>> {
DS {
may_unwind: MayUnwind,
name: "?".to_owned(),
next: ds,
}
}
fn main() {
let deserializers = DS { may_unwind: MayUnwind, name: "?".to_owned(), next: () };
let deserializers = add(deserializers, "?".to_owned());
let deserializers = add(deserializers, "?".to_owned());
let deserializers = add(deserializers, "?".to_owned());
let deserializers = add(deserializers, "?".to_owned());
let deserializers = add(deserializers, "?".to_owned());
let deserializers = add(deserializers, "?".to_owned());
let deserializers = add(deserializers, "?".to_owned()); // 0.7s
let deserializers = add(deserializers, "?".to_owned()); // 1.3s
let deserializers = add(deserializers, "?".to_owned()); // 2.4s
let deserializers = add(deserializers, "?".to_owned()); // 6.7s
let deserializers = add(deserializers, "?".to_owned()); // 26.0s
let deserializers = add(deserializers, "?".to_owned()); // 114.0s
let deserializers = add(deserializers, "?".to_owned()); // 228.0s
let deserializers = add(deserializers, "?".to_owned()); // 400.0s
let deserializers = add(deserializers, "?".to_owned()); // 800.0s
let deserializers = add(deserializers, "?".to_owned()); // 1600.0s
let deserializers = add(deserializers, "?".to_owned()); // 3200.0s
}