I haven't advocated for re-licensing GCC to be permissively licensed. And patching GCC is necessarily going to be much easier for vendors than to build a new C

I haven't advocated for re-licensing GCC to be permissively licensed. And patching GCC is necessarily going to be much easier for vendors than to build a new C front-end which generates GCC IR. So I'm not sure what difference you think what I'm proposing would make with regard to your concerns.