[libcxx-commits] [libcxx] [libc++] Check explicit values in the partial_ordering comparators for better code gen (PR #81366)

[Louis Dionne via libcxx-commits]

https://github.com/ldionne approved this pull request.

LGTM. Please rebase onto `main` and merge if the CI is green.

https://github.com/llvm/llvm-project/pull/81366