[libcxx-commits] [libcxx] [libc++] Annotate the data member of variant with no_unique_address (PR #137783)

[Alex Aktsipetrov via libcxx-commits]

gizmondo wrote:

> Exactly. If this PR does not do that, I think we should, as we are creating a new ABI mode anyway

Makes sense. I'll try to take a stab at this. Converting to draft for now.

@huixie90, I'm curious - does your suggestion mean there is an appetite to make the same layout optimization for std::optional? I'd expect it to be more impactful there.

https://github.com/llvm/llvm-project/pull/137783