Integrate LLVM at llvm/llvm-project@7975dd033cb9
Integrate LLVM at llvm/llvm-project@7975dd033cb9

Updates LLVM usage to match
[7975dd033cb9](https://github.com/llvm/llvm-project/commit/7975dd033cb9)

PiperOrigin-RevId: 368399684

google-research/structured-additive-IR,google-research/structured-additive-IR