[clang] [clang][codegen] Don't mark "int" TBAA on FP libcalls with indirect args (PR #108853)

[Zahira Ammarguellat via cfe-commits]

zahiraam wrote:

> > Not really! int TBAA in in our downstream compiler is interpreted as describing the function arguments (they are not int) and the load/store of the argument before the library call are begin eliminated which result in unexpected behavior.
> 
> Oh wait, then you say "not really" you're only referring to the case where the arguments are passed _indirectly_ (i.e via pointers) not the case where they're passed via floating-point registers.
> 
Yes exactly! Have you tried running the test case in patch https://github.com/llvm/llvm-project/pull/107598 to see what IR it generates?



https://github.com/llvm/llvm-project/pull/108853