message: Integrate LLVM at llvm/llvm-project@78f543e5a1cd
  Updates LLVM usage to match [78f543e5a1cd](https://github.com/llvm/llvm-project/commit/78f543e5a1cd)
diff: @@ -711,8 +711,8 @@ def tf_repositories(path_prefix = "", tf_repo_name = ""):
  )
  # Check out LLVM and MLIR from llvm-project.
  - LLVM_COMMIT = "f9595857b9f868fc7724ea767a8fd984d02848ff"
  - LLVM_SHA256 = "84e90b625094990dd319a436788656db195953cc823eb080e74ee20531bf872a"
  + LLVM_COMMIT = "78f543e5a1cd46b5232d5479dd513d2110f52e96"
  + LLVM_SHA256 = "9adea3b2b150d5a56ff87f630faa832b5736da0ba4be979814bdfc7ffe782dec"
  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),
  