old_contents: """Provides the repository macro to import LLVM."""
  
  load("//third_party:repo.bzl", "tfrt_http_archive")
  
  def repo(name):
      """Imports LLVM."""
      LLVM_COMMIT = "fda176892e64b093996763465338863067e5b09e"
      LLVM_SHA256 = "057516cdd53ebd5d68ae36e82e891d27243b925b824921f4dfe02381a952dcc9"
  
      tfrt_http_archive(
          name = name,
          build_file = "//third_party/llvm:BUILD",
          sha256 = LLVM_SHA256,
          strip_prefix = "llvm-project-" + LLVM_COMMIT,
          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),
          ],
      )
  
new_contents: """Provides the repository macro to import LLVM."""
  
  load("//third_party:repo.bzl", "tfrt_http_archive")
  
  def repo(name):
      """Imports LLVM."""
      LLVM_COMMIT = "4b4bc1ea16dec58e828ec3a0154046b10ec69242"
      LLVM_SHA256 = "a744dd2d7241daf6573ef88f9bd61b9d690cbac73d1f26381054d74e1f3505e0"
  
      tfrt_http_archive(
          name = name,
          build_file = "//third_party/llvm:BUILD",
          sha256 = LLVM_SHA256,
          strip_prefix = "llvm-project-" + LLVM_COMMIT,
          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),
          ],
      )
  
subject: Integrate LLVM at llvm/llvm-project@4b4bc1ea16de