Add baseTag function.
Add baseTag function.

diku-dk/futhark,mrakgr/futhark,mrakgr/futhark,diku-dk/futhark,CulpaBS/wbBach,HIPERFIT/futhark,ihc/futhark,HIPERFIT/futhark,HIPERFIT/futhark,ihc/futhark,diku-dk/futhark,diku-dk/futhark,diku-dk/futhark,mrakgr/futhark,ihc/futhark