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| author | Aleksey Kladov <aleksey.kladov@gmail.com> | 2018-09-29 11:07:48 +0300 |
|---|---|---|
| committer | Aleksey Kladov <aleksey.kladov@gmail.com> | 2018-09-29 11:07:48 +0300 |
| commit | f8e9d2f0ec1bd91e099e508044981d2cd51ec5f9 (patch) | |
| tree | ab8b4640efcc7cfb1c61d8a923867d78dfdfb5b0 /src/libstd/sync | |
| parent | 6622172734a6c456ea85e17b765ad1dbc0e42907 (diff) | |
| download | rust-f8e9d2f0ec1bd91e099e508044981d2cd51ec5f9.tar.gz rust-f8e9d2f0ec1bd91e099e508044981d2cd51ec5f9.zip | |
Fix Once perf regression
Because `call_once` is generic, but `is_completed` is not, we need `#[inline]` annotation to allow LLVM to inline `is_completed` into `call_once` in downstream crates.
Diffstat (limited to 'src/libstd/sync')
| -rw-r--r-- | src/libstd/sync/once.rs | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libstd/sync/once.rs b/src/libstd/sync/once.rs index ce54726baee..17cb614ba11 100644 --- a/src/libstd/sync/once.rs +++ b/src/libstd/sync/once.rs @@ -330,6 +330,7 @@ impl Once { /// assert_eq!(INIT.is_completed(), false); /// ``` #[unstable(feature = "once_is_completed", issue = "42")] + #[inline] pub fn is_completed(&self) -> bool { // An `Acquire` load is enough because that makes all the initialization // operations visible to us, and, this being a fast path, weaker |