[libcxx-commits] [libcxx] [libc++] Introduce implicit and explicit ABI annotations (PR #193045)

[Louis Dionne via libcxx-commits]

ldionne wrote:

Thanks for the heads up @vonosmas . After you've shared more details, I see a couple of options:
1. Either we understand how to solve the problem you're running into and we just fix that forward (Nikolas has some ideas about moving macro definitions to modular headers that might help)
2. Otherwise, we might want to make the implicit annotations be a no-op temporarily while we investigate (effectively reverting this patch -- but we have the choice to revert it mechanically or to make it a no-op to reduce source churn)
3. Then, we can decide how to actually re-roll this out based on what we will have found.

For now, I think we need more information about what's causing the issue -- the very best would be some kind of reproducer that we can play with to see if we're able to solve this.

https://github.com/llvm/llvm-project/pull/193045