On Wed, 2008-01-09 at 15:38 -0500, DJ Delorie wrote: > [EMAIL PROTECTED] This macro must never return zero, even if a register > +cannot hold the requested mode - indicate that with HARD_REGNO_MODE_OK > +and/or CANNOT_CHANGE_MODE_CLASS instead.
I think that HARD_REGNO_NREGS should not be returning zero, but I also think it is a moot point, as we shouldn't be using it on invalid subregs. Hence I like Paul's wording better than yours, but it appears not to be sufficient for your case, as your m32c is only fixing HARD_REGNO_NREGS to not return zero. It appears that the m32c port does define both HARD_REGNO_MODE_OK and CANNOT_CHANGE_MODE_CLASS, so it isn't clear what the problem is. I suspect that there may be another problem here. Unfortunately, I don't have a testcase I can use to look at this myself. Maybe if we found and fixed this other problem, Paul's wording would be correct again. -- Jim Wilson, GNU Tools Support, http://www.specifix.com
