Integrate LLVM at llvm/llvm-project@b740899c500b
Integrate LLVM at llvm/llvm-project@b740899c500b

Updates LLVM usage to match
[b740899c500b](https://github.com/llvm/llvm-project/commit/b740899c500b)

PiperOrigin-RevId: 337679767

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