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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 |
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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 |