| // Copyright 2018 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 |
| // only-x86_64 |
| |
| #![crate_type = "lib"] |
| |
| use std::mem::swap; |
| |
| type RGB48 = [u16; 3]; |
| |
| // CHECK-LABEL: @swap_rgb48 |
| #[no_mangle] |
| pub fn swap_rgb48(x: &mut RGB48, y: &mut RGB48) { |
| // CHECK-NOT: alloca |
| // CHECK: load i48 |
| // CHECK: store i48 |
| swap(x, y) |
| } |
