https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70768
--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> --- When comparing r224581 (the first cc1plus that doesn't ICE on the gcc5 preprocessed source) with r244763 cc1plus on the same source (though, both are checking builds), the latter eats less memory, not more.
