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Re: Fix PR tree-optimization/20940
- From: Diego Novillo <dnovillo at redhat dot com>
- To: Richard Kenner <kenner at vlsi1 dot ultra dot nyu dot edu>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Wed, 16 Mar 2005 12:55:12 -0500
- Subject: Re: Fix PR tree-optimization/20940
- Organization: Red Hat Canada
- References: <10503161734.AA04604@vlsi1.ultra.nyu.edu>
On Wed, Mar 16, 2005 at 12:34:00PM -0500, Richard Kenner wrote:
> Oh? This could be a problem. I thought that fold was going to
> evolve into 2 separate modes, one for front end use and another
> for middle-end use.
>
> Which fold would then be used for a tree-level combiner?
>
The regular fold(). A tree combiner must be able to regimplify
and reconstruct the SSA web.
Diego.