message: Integrate LLVM at llvm/llvm-project@77e5a195f818
  Updates LLVM usage to match
  [77e5a195f818](https://github.com/llvm/llvm-project/commit/77e5a195f818)
diff: @@ -711,8 +711,8 @@ def tf_repositories(path_prefix = "", tf_repo_name = ""):
  )
  # Check out LLVM and MLIR from llvm-project.
  - LLVM_COMMIT = "bad7d6b3735d1d855ffb07f32a272049cff085e6"
  - LLVM_SHA256 = "363948fc7b6ab6e87ba074ad40604f4cfe2cd2f0ce983108f445f6147233b877"
  + LLVM_COMMIT = "77e5a195f818b9ace91f7b12ab948b21d7918238"
  + LLVM_SHA256 = "4f898d6446003ab676b1d60b66a01bcbd5dcf6eab2e4fc6f1adea652deedda00"
  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),
  