[clang] [TBAA] Don't emit pointer-tbaa for void pointers. (PR #122116)

[Florian Hahn via cfe-commits]

fhahn wrote:

> Okay, so if the ultimate pointee type is `void`, we're basically treating that as a generic pointer, no matter what the pointer depth is? I guess that makes sense.
> 
> > What would be a good place to document this?
> 
> Hmm, I was hoping that we would have a section in the manual already about aliasing. That seems like a good thing to add, especially now that we've got a small family of options controlling it. Are you interested in working on that? It should probably go on the main manual page right before the section on PGO.

Thanks for the suggestion, I added a section to the manual. I hope that's along the lines of what you had in mind?

https://github.com/llvm/llvm-project/pull/122116