https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98533
--- Comment #14 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Better reduced testcase from dup PR 119123. ``` struct MCSchedModel { template <typename> void computeInstrLatency(int = [] {}) const; }; struct LSUnitBase { LSUnitBase(const MCSchedModel &); }; ```