Revert "Always enter branches."
Revert "Always enter branches."

This reverts commit 2752e5290eddcbc9f43215a994aeec1cd564d69a.

diku-dk/futhark,ihc/futhark,HIPERFIT/futhark,HIPERFIT/futhark,ihc/futhark,diku-dk/futhark,diku-dk/futhark,HIPERFIT/futhark,diku-dk/futhark,ihc/futhark,diku-dk/futhark