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| author | Alex Crichton <alex@alexcrichton.com> | 2017-08-11 15:59:11 -0700 |
|---|---|---|
| committer | Alex Crichton <alex@alexcrichton.com> | 2017-08-11 15:59:11 -0700 |
| commit | fae60b36cb48b1d5827eaaee656f0ff1a6cc6894 (patch) | |
| tree | fd98a7fe0e6488e434922b62333b0e9d2a3e73f8 /src/liballoc | |
| parent | a83d2afbba772f474872aacc6c21f2b5270fc517 (diff) | |
| download | rust-fae60b36cb48b1d5827eaaee656f0ff1a6cc6894.tar.gz rust-fae60b36cb48b1d5827eaaee656f0ff1a6cc6894.zip | |
std: Tag OOM functions as `#[cold]`
This was forgotten from #42727 by accident, but these functions are rarely called and codegen can be improved in LLVM with the `#[cold]` tag.
Diffstat (limited to 'src/liballoc')
| -rw-r--r-- | src/liballoc/heap.rs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/liballoc/heap.rs b/src/liballoc/heap.rs index 1d959ac5bf6..820f2d958d9 100644 --- a/src/liballoc/heap.rs +++ b/src/liballoc/heap.rs @@ -28,6 +28,7 @@ pub mod __core { extern "Rust" { #[allocator] fn __rust_alloc(size: usize, align: usize, err: *mut u8) -> *mut u8; + #[cold] fn __rust_oom(err: *const u8) -> !; fn __rust_dealloc(ptr: *mut u8, size: usize, align: usize); fn __rust_usable_size(layout: *const u8, @@ -81,6 +82,7 @@ unsafe impl Alloc for Heap { } #[inline] + #[cold] fn oom(&mut self, err: AllocErr) -> ! { unsafe { __rust_oom(&err as *const AllocErr as *const u8) |