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Re: Loop optimizer issues
Hello,
> > > > I may do the merge from mainline anyway if you insist, but imo it does
> > > > not help much.
> > >
> > > Well I think that if it is not too much effort, it will at least allow
> > > everyone to keep all options open. And I would expect that a merge from
> > > rtlopt to tree-ssa would be much easier to review if rtlopt was at least
> > > up-to-date with mainline.
> >
> > actually it would be a lot of work, mostly due to hookizing the cfg.
> > Since I have not done almost any changes touching cfg, merging just the
> > changes into tree-ssa is trivial. The other way would be painful imo.
> >
> I don't get it. Why would it be more painful for you to merge with
> mainline than tree-ssa? After all, outside the tree optimizers,
> tree-ssa and mainline are almost identical.
it is easy to merge loop optimizer changes into either mainline or
tree-ssa. The other direction (merging the mainline into rtlopt)
seems more difficult to me (although not that much when I think about
it again).
Zdenek