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Re: -O3 and new optimizations in 4.4.0

From: Robert Dewar <dewar at adacore dot com>
To: Sebastian Pop <sebpop at gmail dot com>
Cc: "Joseph S. Myers" <joseph at codesourcery dot com>, David Ronis <ronis at ronispc dot chem dot mcgill dot ca>, gcc at gcc dot gnu dot org, "Harle, Christophe" <christophe dot harle at amd dot com>
Date: Fri, 24 Apr 2009 09:12:54 -0400
Subject: Re: -O3 and new optimizations in 4.4.0
References: <1240502045.3828.3.camel@ronispc.chem.mcgill.ca> <Pine.LNX.4.64.0904231556591.2908@digraph.polyomino.org.uk> <cb9d34b20904240610w64aa7eb3rad71a8cc363087ca@mail.gmail.com>

Sebastian Pop wrote:

Hi,

On Thu, Apr 23, 2009 at 10:57, Joseph S. Myers <joseph@codesourcery.com> wrote:
Because the behavior of -O3 must not depend on whether optional libraries
are linked into GCC, and we did not decide to make PPL and CLooG required
to build GCC, so -O3 cannot enable any optimizations using optional
libraries.
What would we have to do to make PPL and CLooG required to build GCC?


Why would that be desirable? Seems to me the current situation is
clearly preferable.

Follow-Ups:
- Re: -O3 and new optimizations in 4.4.0
  - From: Sebastian Pop

References:
- -O3 and new optimizations in 4.4.0
  - From: David Ronis
- Re: -O3 and new optimizations in 4.4.0
  - From: Joseph S. Myers
- Re: -O3 and new optimizations in 4.4.0
  - From: Sebastian Pop

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