[clang] [clang][Sema] Add noinline check for __builtin_frame_address and __builtin_return_address (PR #82966)

[Aaron Ballman via cfe-commits]

https://github.com/AaronBallman commented:

I'm seeing evidence that this might be a chatty diagnostic in practice:

https://sourcegraph.com/github.com/torvalds/linux@90d35da658da8cff0d4ecbb5113f5fac9d00eb72/-/blob/kernel/fork.c?L311
https://sourcegraph.com/github.com/torvalds/linux@90d35da658da8cff0d4ecbb5113f5fac9d00eb72/-/blob/mm/util.c?L644
https://sourcegraph.com/github.com/torvalds/linux@90d35da658da8cff0d4ecbb5113f5fac9d00eb72/-/blob/arch/arm/mm/nommu.c?L224
https://sourcegraph.com/github.com/torvalds/linux@90d35da658da8cff0d4ecbb5113f5fac9d00eb72/-/blob/kernel/scs.c?L48
(and quite a few others).

CC @nathanchance @nickdesaulniers @rjmccall for opinions

If we continue to move forward with the patch, you should add a release note to `clang/docs/ReleaseNotes.rst` so users know about the new diagnostic.

https://github.com/llvm/llvm-project/pull/82966