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Re: VRP in release version of GCC

From: Jeffrey A Law <law at redhat dot com>
To: Steven Bosscher <stevenb at suse dot de>
Cc: gcc at gcc dot gnu dot org, nkavv at physics dot auth dot gr
Date: Mon, 06 Jun 2005 20:18:31 -0600
Subject: Re: VRP in release version of GCC
References: <1118101468.42a4dfdca3c58@mail.physics.auth.gr> <200506070149.58360.stevenb@suse.de>
Reply-to: law at redhat dot com

> The VRP pass is inside tree-ssa-dom.c for GCC 4.0.
Yup.  And it's very very weak.

> GCC 4.1 has a much more powerful VRP pass, which is not related
> to the DOM pass.
Exactly.  Hopefully we'll be able to remove the DOM version before
4.1 since the new tree-vrp.c is vastly better.

jeff

References:
- VRP in release version of GCC
  - From: nkavv
- Re: VRP in release version of GCC
  - From: Steven Bosscher

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