[libcxx-commits] [libcxx] [libc++] Add benchmark for `std::exception_ptr` (PR #164278)

[Nikolas Klauser via libcxx-commits]

https://github.com/philnik777 approved this pull request.

LGTM, but let's wait whether @ldionne has any more comments.

https://github.com/llvm/llvm-project/pull/164278