$ git clone -n https://gitee.com/fundawang/llvm.git /var/lib/mock/dist-an23-build-246817-63193/root/chroot_tmpdir/scmroot/llvm
Cloning into '/var/lib/mock/dist-an23-build-246817-63193/root/chroot_tmpdir/scmroot/llvm'...
$ git reset --hard 60c7a1cda57fb46f94db17f21f9adefeb996c6ec
HEAD is now at 60c7a1c 16.0.1