[clang] [CodeGen][TBAA] Fix aliasing for char-derived pointer types (PR #200392)

[via cfe-commits]

PimpalkarNeha wrote:

> > in C these char types may alias any type
> 
> The standard doesn't say this.



> > in C these char types may alias any type
> 
> The standard doesn't say this.



Thanks for the note. You're right — the standard does not say that in those words. I meant that a store through char*** and a load through int*** can refer to the same memory, so those accesses must not be treated as non-aliasing in TBAA.

I've updated the description.


https://github.com/llvm/llvm-project/pull/200392