old_contents: """Provides the repository macro to import LLVM."""
  
  load("//third_party:repo.bzl", "tf_http_archive")
  
  def repo(name):
      """Imports LLVM."""
      LLVM_COMMIT = "a4bf361454c413771610a0edca6aeeca36b15a26"
      LLVM_SHA256 = "0ecaae85f15cbd9081494e453bc42464aa99b855fe131517e34ad14aed990efe"
  
      tf_http_archive(
          name = name,
          sha256 = LLVM_SHA256,
          strip_prefix = "llvm-project-{commit}".format(commit = 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),
          ],
          build_file = "//third_party/llvm:llvm.BUILD",
          patch_file = [
              "//third_party/llvm:infer_type.patch",  # TODO(b/231285230): remove once resolved
              "//third_party/llvm:build.patch",
              "//third_party/llvm:macos_build_fix.patch",
          ],
          link_files = {"//third_party/llvm:run_lit.sh": "mlir/run_lit.sh"},
      )
  
new_contents: """Provides the repository macro to import LLVM."""
  
  load("//third_party:repo.bzl", "tf_http_archive")
  
  def repo(name):
      """Imports LLVM."""
      LLVM_COMMIT = "e4a21e1644f2015dd4f9c3a7c67378879aa912cc"
      LLVM_SHA256 = "5334bddbf6e15b14c29a4bf8342d639ae17543ba47a2dba8363200ee09988fe2"
  
      tf_http_archive(
          name = name,
          sha256 = LLVM_SHA256,
          strip_prefix = "llvm-project-{commit}".format(commit = 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),
          ],
          build_file = "//third_party/llvm:llvm.BUILD",
          patch_file = [
              "//third_party/llvm:infer_type.patch",  # TODO(b/231285230): remove once resolved
              "//third_party/llvm:build.patch",
              "//third_party/llvm:macos_build_fix.patch",
          ],
          link_files = {"//third_party/llvm:run_lit.sh": "mlir/run_lit.sh"},
      )
  
subject: Integrate LLVM at llvm/llvm-project@e4a21e1644f2