mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-22 14:55:26 +00:00
16422dbd89
Use Hacker's Delight impl in `i64::midpoint` instead of wide `i128` impl This PR switches `i64::midpoint` and (`isize::midpoint` where `isize == i64`) to using our Hacker's Delight impl instead of wide `i128` implementation. As LLVM seems to be outperformed by the complexity of signed 128-bits number compared to our Hacker's Delight implementation.[^1] It doesn't seems like it's an improvement for the other sizes[^2], so we let them with the wide implementation. [^1]: https://rust.godbolt.org/z/ravE75EYj [^2]: https://rust.godbolt.org/z/fzr171zKh r? libs |
||
|---|---|---|
| .. | ||
| alloc | ||
| backtrace@230570f2da | ||
| core | ||
| panic_abort | ||
| panic_unwind | ||
| portable-simd | ||
| proc_macro | ||
| profiler_builtins | ||
| rtstartup | ||
| rustc-std-workspace-alloc | ||
| rustc-std-workspace-core | ||
| rustc-std-workspace-std | ||
| std | ||
| stdarch@ff9a444503 | ||
| sysroot | ||
| test | ||
| unwind | ||
| windows_targets | ||
| Cargo.lock | ||
| Cargo.toml | ||