Integrate LLVM at llvm/llvm-project@bd7ece4e063e
Integrate LLVM at llvm/llvm-project@bd7ece4e063e

Updates LLVM usage to match
[bd7ece4e063e](https://github.com/llvm/llvm-project/commit/bd7ece4e063e)

PiperOrigin-RevId: 393183059

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