https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102953
--- Comment #19 from H.J. Lu <hjl.tools at gmail dot com> --- (In reply to Andrew Cooper from comment #17) > I think I've found a bug in the -fcf-check-attribute implementation. > Please try the v5 patch. BTW, do you have a testcase to show how -fcf-check-attribute=yes is used?