https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102166
--- Comment #6 from Thiago Macieira <thiago at kde dot org> --- > I suggest doing as Clang did and make it an intrinsic. Or even a __builtin_ia32_markamxtile(); intrinsic, which produces the error if misused and does add the necessary bits to the .note.gnu.property section
