Integrate LLVM at llvm/llvm-project@e3cf7c88c472
Integrate LLVM at llvm/llvm-project@e3cf7c88c472

Updates LLVM usage to match
[e3cf7c88c472](https://github.com/llvm/llvm-project/commit/e3cf7c88c472)

PiperOrigin-RevId: 375041162

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