message: [TF:XLA] Bump open source llvm revision to r321639
diff: @@ -422,11 +422,11 @@ def tf_workspace(path_prefix="", tf_repo_name=""):
  tf_http_archive(
  name = "llvm",
  urls = [
  - "https://mirror.bazel.build/github.com/llvm-mirror/llvm/archive/7e6fcc775f56cdeeae061f6f8071f5c103087330.tar.gz",
  - "https://github.com/llvm-mirror/llvm/archive/7e6fcc775f56cdeeae061f6f8071f5c103087330.tar.gz",
  + "https://mirror.bazel.build/github.com/llvm-mirror/llvm/archive/486aa2085240cfb6e43c18adc3e7ac442f5cadbf.tar.gz",
  + "https://github.com/llvm-mirror/llvm/archive/486aa2085240cfb6e43c18adc3e7ac442f5cadbf.tar.gz",
  ],
  - sha256 = "9478274a10d7f487e7ad878c8eec30398a54e07eb148867711cd9c6fe7ff5f59",
  - strip_prefix = "llvm-7e6fcc775f56cdeeae061f6f8071f5c103087330",
  + sha256 = "7ef76c148c93c5ea4457a6443460ac75a88e3df2b719a10715c86cb2f0ea1235",
  + strip_prefix = "llvm-486aa2085240cfb6e43c18adc3e7ac442f5cadbf",
  build_file = str(Label("//third_party/llvm:llvm.BUILD")),
  )
  