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Re: CFG branch merge 5 - remove PROP_ALLOW_CFG_CHANGES

> On Thu, Feb 28, 2002 at 09:11:52PM +0100, Jan Hubicka wrote:
> > I may make it iterate until the progress stabilize, all I need
> > is liveness to make it return true on change.  I actually made
> > the patch and it never triggered the third iteration for me, so
> > thats why I dropped it.
> 
> I've seen it before.  And since adding the loop fixed some problem
> (on pa, iirc), I don't feel comfortable removing it.
OK,
Would this be OK if I mplement the loop at cfg_cleanup time?
I just felt that the optimization is bit expensive given the benefit
it brings. What kind of problems it brought to pa except the pesimized
code?

Honza
> 
> 
> r~
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