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Re: Non-dominating loop bounds in tree-ssa-loop-niter 3/4
On Wed, Oct 31, 2012 at 01:30:02PM +0100, Richard Biener wrote:
> On Wed, 31 Oct 2012, Jan Hubicka wrote:
> > > unroll you mean. Because unrolling mutates the CFG too much.
> > > Well - it was just a starting point, populating -Og with as little
> > > as possible and 100% profitable transforms (in both debug and speed
> > > metric). In late opts we only do (early opt queue is shared):
> >
> > Well, and what about early cunrolli?
>
> It's not there (and I would disable it for -Og).
Generally, most of the loop transforms are undesirable for -Og.
Jakub