Integrate LLVM at llvm/llvm-project@1524b0154116
Integrate LLVM at llvm/llvm-project@1524b0154116

Updates LLVM usage to match
[1524b0154116](https://github.com/llvm/llvm-project/commit/1524b0154116)

PiperOrigin-RevId: 395471069

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