[libcxx-commits] [libcxx] [libc++] added benchmarks for `string::append()` (PR #213990)

[Nikolas Klauser via libcxx-commits]

philnik777 wrote:

> @ldionne, what can I do to speedup this review?

You could address the remaining comment.

https://github.com/llvm/llvm-project/pull/213990