Integrate LLVM at llvm/llvm-project@99ad956fdaee
Integrate LLVM at llvm/llvm-project@99ad956fdaee

Updates LLVM usage to match
[99ad956fdaee](https://github.com/llvm/llvm-project/commit/99ad956fdaee)

PiperOrigin-RevId: 322713350

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