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Re: vrp?
- From: David Edelsohn <dje at watson dot ibm dot com>
- To: law at redhat dot com, Richard Henderson <rth at redhat dot com>
- Cc: gcc at gcc dot gnu dot org
- Date: Wed, 12 Feb 2003 10:50:06 -0500
- Subject: Re: vrp?
Richard> Any idea what the state of the last value-range propagation patch is?
Jeff> I think we had some minor differences in how we thought it ought to
Jeff> work, but nothing drastic. Of course there were also the compile-time
Jeff> issues since I my recollection was that it was a traditional iterate
Jeff> iterate iterate until you reach a fixed point solution.
The RTL VRP is an interesting theoretical exercise, but not
properly designed for a commercial compiler, IMHO.
David