$ git clone -n https://github.com/fedora-riscv/clang.git /var/lib/mock/f37-build-side-29-llvm-devel-80857-4177/root/chroot_tmpdir/scmroot/clang
Cloning into '/var/lib/mock/f37-build-side-29-llvm-devel-80857-4177/root/chroot_tmpdir/scmroot/clang'...
$ git reset --hard ffd555d8ed4667cbda06c74fc8a4c6b447cb496c
HEAD is now at ffd555d Add riscv64 support.