Integrate LLVM at llvm/llvm-project@7e54d7304be2
Integrate LLVM at llvm/llvm-project@7e54d7304be2

Updates LLVM usage to match
[7e54d7304be2](https://github.com/llvm/llvm-project/commit/7e54d7304be2)

PiperOrigin-RevId: 358516349

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