Use separate stack roots for better caching.
Use separate stack roots for better caching.

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