dead-code elim. it is NOT thorughly tested
dead-code elim. it is NOT thorughly tested

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