For the latest version of this doc, please make sure to visit: Android Clang/LLVM-based Tools Readme Doc
$ mkdir clang-tools && cd clang-tools
$ repo init -u https://android.googlesource.com/platform/manifest -b clang-tools
$ repo sync -c
$ OUT_DIR=out prebuilts/clang-tools/build-prebuilts.sh
From an AOSP main tree or a clang-tools tree run:
$ prebuilts/clang-tools/update-prebuilts.sh \
<build-id from go/ab/aosp-clang-tools>