| // 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: -Z thinlto -C codegen-units=8 -O -C lto |
| // aux-build:thin-lto-inlines-aux.rs |
| // min-llvm-version 4.0 |
| // no-prefer-dynamic |
| // ignore-emscripten |
| |
| // We want to assert here that ThinLTO will inline across codegen units. There's |
| // not really a great way to do that in general so we sort of hack around it by |
| // praying two functions go into separate codegen units and then assuming that |
| // if inlining *doesn't* happen the first byte of the functions will differ. |
| |
| extern crate thin_lto_inlines_aux as bar; |
| |
| pub fn foo() -> u32 { |
| bar::bar() |
| } |
| |
| fn main() { |
| println!("{} {}", foo(), bar::bar()); |
| |
| unsafe { |
| let foo = foo as usize as *const u8; |
| let bar = bar::bar as usize as *const u8; |
| |
| assert_eq!(*foo, *bar); |
| } |
| } |
| |
