[libc-commits] [libc] [libc][NFC] Fix GCC volatile warning (PR #78509)

[Nick Desaulniers via libc-commits]

nickdesaulniers wrote:

Also, I'm curious if clang supports this diagnostic flag and if/why we don't see it with clang. That's another "thread to pull on."

https://github.com/llvm/llvm-project/pull/78509