[libcxx-commits] [libcxx] [libc++] fixes `__split_buffer_size_layout` bugs (PR #178341)

[Louis Dionne via libcxx-commits]

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

LGTM, thanks for the patch! I think this is fine to merge immediately. The red CI is a fluke unrelated to this PR. We need to address it, but it shouldn't block this PR.

I'll go ahead and merge. For info, I'll reduce the PR description to what's essential in the commit message, but it's great to have the full info in the PR description as you've done.

https://github.com/llvm/llvm-project/pull/178341