[libcxx-commits] [libcxx] [libc++] Replace `__compressed_pair` with `[[no_unique_address]]` (PR #76756)

[Nikolas Klauser via libcxx-commits]

philnik777 wrote:

@huixie90 I don't think explicitly adding padding bytes is a problem here. The affected classes are in just about no way trivial, so I don't think it matters how the padding bytes are generated. @cjdb it would be great to get some data whether we could drop the padding bytes, but my suspicion is that we can't, since `[[no_unique_address]]` is way more powerful than EBO.

https://github.com/llvm/llvm-project/pull/76756