> Is calculix big ? It's 7 nested for loops IIRC and, when unrolling, can get pretty nasty. I tested with -Ofast -funroll-loops. I think wrf is even larger, maybe I can run a full comparison test tonight to have good coverage.
> Could you give me the testcase to reproduce it? OK, I will try to reduce it, will be Fortran, though. Regards Robin
