https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71338
--- Comment #5 from Oleg Endo <olegendo at gcc dot gnu.org> --- (In reply to DJ Delorie from comment #4) > Sure, the only dependencies might be on binutils/gdb releases, but they > support it and they're independent of gcc releases anyway. As far as I know, binutils GAS does not check for mulu usage when compiling for G10 and happily accepts it in e.g. inline asm blocks. So I think it should be OK from that side. I'll backport r237566.