message: Allow tf_compile to handle iOS Simulator.
diff: @@ -407,6 +407,7 @@ def target_llvm_triple():
  "//tensorflow:android_arm64": "aarch64-none-android",
  "//tensorflow:android_x86": "i686-none-android",
  "//tensorflow:ios": "arm64-none-ios",
  + "//tensorflow:ios_x86_64": "x86_64-apple-ios",
  "//tensorflow:linux_ppc64le": "ppc64le-ibm-linux-gnu",
  "//tensorflow:macos": "x86_64-none-darwin",
  "//conditions:default": "x86_64-pc-linux",
  