Integrate LLVM at llvm/llvm-project@76f734040a54
Integrate LLVM at llvm/llvm-project@76f734040a54

Updates LLVM usage to match
[76f734040a54](https://github.com/llvm/llvm-project/commit/76f734040a54)

PiperOrigin-RevId: 383312586

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