[llvm] [Instrumentation] Do not run sanitizers for naked functions (PR #108552)

[Antonio Frighetto via llvm-commits]

antoniofrighetto wrote:

See downstream issue: https://github.com/rust-lang/rust/issues/129224. Yeah, the commit message can be made more accurate. I was having in mind Rust Naked functions when I wrote it; indeed inline asm only is not a strict requirement in LLVM. That said, I'm not sure you'd be able to leverage Asan instrumentation properly (e.g., for stack accesses), if the function lacks of prologue/epilogue in the first place.

https://github.com/llvm/llvm-project/pull/108552