message: [TF:XLA] Bump open source llvm revision to r340902
diff: @@ -491,11 +491,11 @@ def tf_workspace(path_prefix = "", tf_repo_name = ""):
  tf_http_archive(
  name = "llvm",
  urls = [
  - "https://mirror.bazel.build/github.com/llvm-mirror/llvm/archive/deac5c28e00179be248aaf03abd329a848e8fac8.tar.gz",
  - "https://github.com/llvm-mirror/llvm/archive/deac5c28e00179be248aaf03abd329a848e8fac8.tar.gz",
  + "https://mirror.bazel.build/github.com/llvm-mirror/llvm/archive/10a4287278d70f44ea14cee48aef3697b2ef1321.tar.gz",
  + "https://github.com/llvm-mirror/llvm/archive/10a4287278d70f44ea14cee48aef3697b2ef1321.tar.gz",
  ],
  - sha256 = "bb55a553facff0408574a7bbd0d93c7371dbf527c7020fc6f4b9adeb0d83f780",
  - strip_prefix = "llvm-deac5c28e00179be248aaf03abd329a848e8fac8",
  + sha256 = "ef679201e323429ca65a25d7ac42dbfbd6c9368613de6d82faee952bb72827d3",
  + strip_prefix = "llvm-10a4287278d70f44ea14cee48aef3697b2ef1321",
  build_file = clean_dep("//third_party/llvm:llvm.autogenerated.BUILD"),
  )
  