Re: [RFC] propagating loop dependences from trees to RTL (for SMS)

[Devang Patel <dpatel at apple dot com>]

On Sep 22, 2005, at 7:39 PM, Kenneth Zadeck wrote:

> I will pull a patch together tomorrow.  There is currently nothing  
> in the code for keeping the region stuff up to date as changes are  
> made to the cfg.  For most changes this would not be hard, but for  
> some it is really hard.

OK. I've code (about 6 months old) to keep loop info update during  
jump threading. I couldn't finish that work to keep loop info upto  
date from very beginning till end at that time. But now, I am seeing  
some day light, so hopefully I'll get back to it soon.

-
Devang

> Daniel Berlin wrote:
>
> > On Thu, 2005-09-22 at 18:49 -0700, Devang Patel wrote:
> >
> >
> > > On Sep 22, 2005, at 2:32 AM, Steven Bosscher wrote:
> > >
> > >
> > >
> > > > On Sep 22, 2005 11:25 AM, Zdenek Dvorak   
> > > > <rakdver@atrey.karlin.mff.cuni.cz> wrote:
> > > >
> > > >
> > > >
> > > > > > 4. Other ideas?
> > > > > Preserving the information about loops throughout the   
> > > > > optimizations, and
> > > > > just keeping this information attached at the loop description   
> > > > > would by
> > > > > far be the cleanest approach -- admitedly also the one that   
> > > > > requires the
> > > > > greatest amount of work.
> > > > Shouldn't the regions patch allow us to preserve loops quite  
> > > > easily?
> > > Any pointer to this "regions patch" ?
> > > Thanks,
> >
> > Ask kenny for a copy.

-
Devang