Integrate LLVM at llvm/llvm-project@567a979ea809
Integrate LLVM at llvm/llvm-project@567a979ea809

Updates LLVM usage to match
[567a979ea809](https://github.com/llvm/llvm-project/commit/567a979ea809)

PiperOrigin-RevId: 438840479

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