Fix usage of enterLoop.
Fix usage of enterLoop.

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