On Fri, 2020-08-14 at 16:46 +0530, Senthil Kumar Selvaraj wrote: > Hi, > > I'm working on porting AVR to MODE_CC, and there are quite a few > patterns that clobber the condition code reg only for certain > constraint alternatives. For e.g., Yea. H8 has the same issue. It's worth noting that showing a clobber for the CC register even when the bits aren't clobbered is safe.
So I started with that on the H8, even though it did result in some code efficiency regressions. Then I started pulling apart those patterns when testing showed it was worth the effort. Jeff
