Integrate LLVM at llvm/llvm-project@0c118831a37a
Integrate LLVM at llvm/llvm-project@0c118831a37a

Updates LLVM usage to match
[0c118831a37a](https://github.com/llvm/llvm-project/commit/0c118831a37a)

PiperOrigin-RevId: 357158589

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