[libc-commits] [libc] [libc] add support for function level attributes (PR #79891)

[Schrodinger ZHU Yifan via libc-commits]

SchrodingerZhu wrote:

@nickdesaulniers A gentle ping for review since this is going to conflict with @lntue's change in #81010.

https://github.com/llvm/llvm-project/pull/79891