[CentOS] How to install clang on CentOS 7?

Mon Jun 8 07:30:14 UTC 2015
Nan Xiao <xiaonan830818 at gmail.com>

Hi all,

I want to install clang on CentOS 7. After executing "yum install
clang", it outputs:

[root at hp ~]# yum install clang
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: centos.mia.host-engine.com
 * elrepo: elrepo.mirrors.arminco.com
 * extras: centos.arvixe.com
 * updates: centos.eecs.wsu.edu
No package clang available.
Error: Nothing to do

Doesn't  CentOS 7 support rpm install clang? Thanks in advance!

Best Regards
Nan Xiao