[libc-commits] [clang] [libc] [libcxx] [clang][X86] Emit AVX level mismatch psABI warnings on function definitions (PR #199091)

[Aaron Ballman via libc-commits]

https://github.com/AaronBallman commented:

We should also add a release note to `clang/docs/ReleaseNotes.rst` so users know about the changes.

https://github.com/llvm/llvm-project/pull/199091