Integrate LLVM at llvm/llvm-project@7bbd7e9c1d1d
Integrate LLVM at llvm/llvm-project@7bbd7e9c1d1d

Updates LLVM usage to match
[7bbd7e9c1d1d](https://github.com/llvm/llvm-project/commit/7bbd7e9c1d1d)

PiperOrigin-RevId: 404767211

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