mirror of
https://github.com/rust-lang/rust.git
synced 2025-10-31 13:04:42 +00:00
72800d3b89
Except for `simd-intrinsic/`, which has a lot of files containing multiple types like `u8x64` which really are better when hand-formatted. There is a surprising amount of two-space indenting in this directory. Non-trivial changes: - `rustfmt::skip` needed in `debug-column.rs` to preserve meaning of the test. - `rustfmt::skip` used in a few places where hand-formatting read more nicely: `enum/enum-match.rs` - Line number adjustments needed for the expected output of `debug-column.rs` and `coroutine-debug.rs`.
23 lines
558 B
Rust
23 lines
558 B
Rust
//@ compile-flags: -C no-prepopulate-passes
|
|
|
|
#![crate_type = "lib"]
|
|
#![feature(core_intrinsics)]
|
|
|
|
use std::intrinsics::{likely, unlikely};
|
|
|
|
#[no_mangle]
|
|
pub fn check_likely(x: i32, y: i32) -> Option<i32> {
|
|
unsafe {
|
|
// CHECK: call i1 @llvm.expect.i1(i1 %{{.*}}, i1 true)
|
|
if likely(x == y) { None } else { Some(x + y) }
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub fn check_unlikely(x: i32, y: i32) -> Option<i32> {
|
|
unsafe {
|
|
// CHECK: call i1 @llvm.expect.i1(i1 %{{.*}}, i1 false)
|
|
if unlikely(x == y) { None } else { Some(x + y) }
|
|
}
|
|
}
|