https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101219
--- Comment #1 from David Binderman <dcb314 at hotmail dot com> --- Reduced C++ code seems to be: class PCEFast_PSG { void UpdateOutput_Noise(int, int *); }; template <int> void PCEFast_PSGRunChannel() { void (PCEFast_PSG::*ch_0)(int, int *); &PCEFast_PSG::UpdateOutput_Noise == ch_0; }