| 1 | // FIXME: Branch prediction hint. This is currently only available on nightly |
|---|---|
| 2 | // but it consistently improves performance by 10-15%. |
| 3 | #[cfg(not(feature = "nightly"))] |
| 4 | pub(crate) use core::convert::{identity as likely, identity as unlikely}; |
| 5 | #[cfg(feature = "nightly")] |
| 6 | pub(crate) use core::intrinsics::{likely, unlikely}; |
| 7 | |
| 8 | // FIXME: use strict provenance functions once they are stable. |
| 9 | // Implement it with a transmute for now. |
| 10 | #[inline(always)] |
| 11 | #[allow(clippy::useless_transmute)] // clippy is wrong, cast and transmute are different here |
| 12 | pub(crate) fn invalid_mut<T>(addr: usize) -> *mut T { |
| 13 | unsafe { core::mem::transmute(src:addr) } |
| 14 | } |
| 15 |
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