https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90251
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- > From parser.h: } GTY((desc ("(%1.type == CPP_TEMPLATE_ID)" "|| (%1.type == CPP_NESTED_NAME_SPECIFIER)" "|| (%1.type == CPP_DECLTYPE)"))) u; > If there's a space after the || operator, there should be one before the > operator, too. This one does not matter that much. Because it is C code in the end.