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Re: df.c data reprezentation

To: Daniel Berlin <dan at cgsoftware dot com>
Subject: Re: df.c data reprezentation
From: Jan Hubicka <jh at suse dot cz>
Date: Tue, 25 Sep 2001 17:08:07 +0200
Cc: Jan Hubicka <jh at suse dot cz>, gcc at gcc dot gnu dot org, rth at cygnus dot com, m dot hayes at elec dot canterbury dot ac dot nz, matzmich at cs dot tu-berlin dot de
References: <20010925162505.E13734@atrey.karlin.mff.cuni.cz> <EACBF50A-B1C5-11D5-9D8F-0030657B5340@cgsoftware.com>

> I know I was, and others were, specifically planning on reusing the df 
> module for dataflow on trees.
> Right now, it only requires assigning each variable an id (trivial), and 
> adding routines that know how to record defs/uses for trees.
Hmm, that makes sense...
> 
> If you want to transform the info at the end of dataflow into stuff on 
> rtx, that's fine. But please don't make it do it in the actual routines, 
> or in the dataflow structures.
OK, I will keep it as it is - only I am concerned about is the array of per-insn records,
as those seems to be quite problematic in other cases, but lets keep it that way.



Honza
> 
> >Honza

References:
- df.c data reprezentation
  - From: Jan Hubicka
- Re: df.c data reprezentation
  - From: Daniel Berlin

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