Integrate LLVM at llvm/llvm-project@b5a84e214d49
Integrate LLVM at llvm/llvm-project@b5a84e214d49

Updates LLVM usage to match
[b5a84e214d49](https://github.com/llvm/llvm-project/commit/b5a84e214d49)

PiperOrigin-RevId: 385102412

tensorflow/runtime,tensorflow/runtime,tensorflow/runtime,tensorflow/runtime