message: Integrate LLVM at llvm/llvm-project@a38d13ed3635
  Updates LLVM usage to match
  [a38d13ed3635](https://github.com/llvm/llvm-project/commit/a38d13ed3635)
diff: @@ -686,8 +686,8 @@ def tf_repositories(path_prefix = "", tf_repo_name = ""):
  )
  # Check out LLVM and MLIR from llvm-project.
  - LLVM_COMMIT = "e0f4dea0d0f1766eef1591d77b5673ce264e8fff"
  - LLVM_SHA256 = "7a0ee7b9f4f56270bfacf3378e2ae9f9d5f78d1ba9303280c829b6c97d99b897"
  + LLVM_COMMIT = "a38d13ed3635bfdd35226e8d8d0661a42bcd35c6"
  + LLVM_SHA256 = "9d30e2be98674ef8f99b512b4b7798321161188e2df745a7b6ae23a685d17459"
  LLVM_URLS = [
  "https://storage.googleapis.com/mirror.tensorflow.org/github.com/llvm/llvm-project/archive/{commit}.tar.gz".format(commit = LLVM_COMMIT),
  "https://github.com/llvm/llvm-project/archive/{commit}.tar.gz".format(commit = LLVM_COMMIT),
  