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Re: [patch] More TRUNC_MOD_EXPR folding

From: ja2morri at csclub dot uwaterloo dot ca (James A. Morrison)
To: law at redhat dot com
Cc: Roger Sayle <roger at eyesopen dot com>, gcc-patches at gcc dot gnu dot org
Date: 18 Jun 2005 15:51:49 -0400
Subject: Re: [patch] More TRUNC_MOD_EXPR folding
References: <Pine.LNX.4.44.0506180732340.14963-100000@www.eyesopen.com><1119104090.3815.40.camel@localhost.localdomain>

Jeffrey A Law <law@redhat.com> writes:

> The transformations in VRP use range data that is not currently
> available to the folder.
> 
> The stuff that was added to the folder is a trivial case that really,
> really, really is better handled by the VRP stuff I recently checked
> in.
> 
> jeff

 So far all the transformations in simplify_using_ranges could be replaced if
VRP had a way to hook into tree_expr_nonnegative_p.  I currently thinking
of possible ways to do this, but I am no where near any patches yet.

-- 
Thanks,
Jim

http://www.csclub.uwaterloo.ca/~ja2morri/
http://phython.blogspot.com
http://open.nit.ca/wiki/?page=jim

Follow-Ups:
- Re: [patch] More TRUNC_MOD_EXPR folding
  - From: Jeffrey A Law

References:
- Re: [patch] More TRUNC_MOD_EXPR folding
  - From: Roger Sayle
- Re: [patch] More TRUNC_MOD_EXPR folding
  - From: Jeffrey A Law

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