mirror of
https://github.com/rust-lang/rust
synced 2024-10-14 12:33:57 +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
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#![crate_type = "lib"]
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#![feature(core_intrinsics)]
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use std::intrinsics::{likely, unlikely};
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#[no_mangle]
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pub fn check_likely(x: i32, y: i32) -> Option<i32> {
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unsafe {
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// CHECK: call i1 @llvm.expect.i1(i1 %{{.*}}, i1 true)
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if likely(x == y) { None } else { Some(x + y) }
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}
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}
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#[no_mangle]
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pub fn check_unlikely(x: i32, y: i32) -> Option<i32> {
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unsafe {
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// CHECK: call i1 @llvm.expect.i1(i1 %{{.*}}, i1 false)
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if unlikely(x == y) { None } else { Some(x + y) }
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}
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}
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