For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:patrikjakobsson:branches:X11:XOrg/openSUSE_Tumbleweed/home:patrikjakobsson:branches:X11:XOrg.repo
zypper refresh
zypper install intel-graphics-compiler
For openSUSE Factory run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:patrikjakobsson:branches:X11:XOrg/openSUSE_Factory/home:patrikjakobsson:branches:X11:XOrg.repo
zypper refresh
zypper install intel-graphics-compiler