https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115825
--- Comment #27 from Segher Boessenkool <segher at gcc dot gnu.org> --- > This is a GIMPLE pass which has no idea what the backend will expand > __builtin_darn() to. So you are saying >90% of builtins now need to say they are pure and const (which makes totally no sense for things not touching memory)? It never was like this, only things that do touch memory at all ever looked at those attributes :-(
