Integrate LLVM at llvm/llvm-project@deadda749aef
Integrate LLVM at llvm/llvm-project@deadda749aef

Updates LLVM usage to match
[deadda749aef](https://github.com/llvm/llvm-project/commit/deadda749aef)

PiperOrigin-RevId: 441362803

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