Well it's true that the Go compiler isn't comparable to GCC in terms of optimization but it's still quite new and is likely to improve quite a bit. As for Go su

Well it's true that the Go compiler isn't comparable to GCC in terms of optimization but it's still quite new and is likely to improve quite a bit. As for Go supporting other compiler backends that's already happening with GccGo which is a Go frontend for GCC and yes it does generate much faster code than the official compiler (although it still lacks some key features last time I checked). I don't think we'll see GCC (or LLVM) as the official backend though, as they've stated that the reason they decided to do the whole compiler from scratch was that both gcc and llvm backends were considered too large and slow.