Steve Fink <[EMAIL PROTECTED]> wrote: >> > It would be tempting to change all pushtop,pushbottom,poptop,popbottom >> > ops into ones that had the start register and number of registers as >> > arguments. >> >> No. These ops are used to save registers for the caller and not for >> argument passing.
> Yes, I know -- but if we made the suggested change, then they could be > used for both. (Only when needed -- normally, they'd just be used for > caller-save stuff, it's only in complicated situations where we'd use > them for dynamic register numbering.) These would be different opcodes prepare_args, extract_args or such. But I don't expect much usage of such complicated signatures, where function arguments don't match. So its probably not worth the effort. > This sounds like the beginning of a whole set of things like "Warning > #238: suboptimal implementation of xxx. Are you sure you know what you > are doing?" If the user turns on optimization and the compiler finds such code, yes, why not. leo
