The approach seems to focus on selecting optimizations to apply for LLVM (e.g., imagime: should this be inlined as an example), but the worst case is that the code is poorly optimized, you can't select optimizations to apply and get a wrong result.

I agree that what you say is true of compilation as a whole, but that doesn't seem to be the focus here (rather, it's used as a sort of crutch to help the LLM learn)