Robuta

https://gcc.gnu.org/legacy-ml/gcc-patches/2006-12/msg00602.html Richard Guenther - Re: [patch,fortran] Add test to gfortran.dg (gave an ICE with -ftree-opt https://gcc.gnu.org/legacy-ml/gcc-bugs/2007-09/msg00475.html ubizjak at gmail dot - [Bug tree-optimization/32821] tree-if-conv:combine_blocks with -ftree-du