https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67963
--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> --- (In reply to H.J. Lu from comment #1) > (In reply to H.J. Lu from comment #0) > > We should issue an error if -march=lakemont is used without -miacmu. > > We should issue an error if -march=lakemont is used without -mno-80387, > not without -miamcu. -march=lakemont should imply -mno-80387.
