| //@ run-pass |
| #![allow(dead_code)] |
| #![allow(unused_variables)] |
| #![recursion_limit = "128"] |
| // 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 |
| } |
