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| author | bors <bors@rust-lang.org> | 2018-10-01 00:51:19 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2018-10-01 00:51:19 +0000 |
| commit | 03379648df3e1671506918f2eb31deff7e463cc8 (patch) | |
| tree | 042772408c67e85b3c795a8a070e87c935419223 /src/libstd | |
| parent | 93efd533a33cd1d3700549281a522857644d6bdd (diff) | |
| parent | f8e9d2f0ec1bd91e099e508044981d2cd51ec5f9 (diff) | |
| download | rust-03379648df3e1671506918f2eb31deff7e463cc8.tar.gz rust-03379648df3e1671506918f2eb31deff7e463cc8.zip | |
Auto merge of #54662 - matklad:once-perf, r=alexcrichton
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. cc https://github.com/rust-lang/rust/pull/53027/files#r221418859
Diffstat (limited to 'src/libstd')
| -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 |