[libcxx-commits] [libcxx] [libc++] Fix sub-overflow in std::gcd implementation (PR #117984)

[Louis Dionne via libcxx-commits]

https://github.com/ldionne commented:

Thanks for having a look! Would it be possible to add a regression test for #117249 ?

Also, since we're basically changing the algorithm entirely (IIUC), did you run the benchmarks again to compare?

https://github.com/llvm/llvm-project/pull/117984