[llvm-branch-commits] [libcxx] [libc++][string] Improve constexpr performance (PR #184724)

[Nikolas Klauser via llvm-branch-commits]

https://github.com/philnik777 commented:

I'm not really convinced this is a good idea. How much time does this actually save? (I don't mean steps, but actual wall time)

https://github.com/llvm/llvm-project/pull/184724