https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101393
--- Comment #17 from Segher Boessenkool <segher at gcc dot gnu.org> --- (In reply to Franz Sirl from comment #15) > > "7400" and "403" are not supported target attribute values, fwiw (says the > > manual). > > Hmm, I don't understand what you mean. I mean that I cannot read :-) You wrote "cpu=403" of course, which should be fine (as opposed to just "403".