On Wed, 2020-04-22 at 22:01 +0530, Senthil Kumar via Gcc wrote: > Hi, > > I'm thinking about attempting to do the CC0 transition for the > AVR port in my spare time. I've read the CC0Transition gcc wiki > page, and as the AVR ISA does not have non-condition-code > clobbering arithmetic instructions, concluded that I'd have to > follow the steps outlined for case #2. > > Are there any other things I need to watch out for? Not offhand. You might want to look at how Bernd did the m68k though. I think a conceptually similar transition would be reasonable for AVR as well as the alternative would be dropping the AVR port.
Jeff