Integrate LLVM at llvm/llvm-project@074fcec1eabf
Integrate LLVM at llvm/llvm-project@074fcec1eabf

Updates LLVM usage to match
[074fcec1eabf](https://github.com/llvm/llvm-project/commit/074fcec1eabf)

PiperOrigin-RevId: 479585861

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