Integrate LLVM at llvm/llvm-project@f8dbd6107417
Integrate LLVM at llvm/llvm-project@f8dbd6107417

Updates LLVM usage to match
[f8dbd6107417](https://github.com/llvm/llvm-project/commit/f8dbd6107417)

PiperOrigin-RevId: 374391426

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