Integrate LLVM at llvm/llvm-project@6fa87ec10fce
Integrate LLVM at llvm/llvm-project@6fa87ec10fce

Updates LLVM usage to match
[6fa87ec10fce](https://github.com/llvm/llvm-project/commit/6fa87ec10fce)

PiperOrigin-RevId: 469538696

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