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Re: [patch, rfc] PR32172 - Update -funsafe-math-optimizations flag definition

From: "Richard Guenther" <richard dot guenther at gmail dot com>
To: "Dominique Dhumieres" <dominiq at lps dot ens dot fr>
Cc: gcc-patches at gcc dot gnu dot org, ERES at il dot ibm dot com, rguenther at suse dot de
Date: Sun, 3 Jun 2007 22:30:42 +0200
Subject: Re: [patch, rfc] PR32172 - Update -funsafe-math-optimizations flag definition
References: <OFBA2C149E.C2ACA84F-ONC22572ED.0025C4E6-C22572EF.0047873F@il.ibm.com> <20070603131040.F04ED5BB6C@mailhost.lps.ens.fr>

On 6/3/07, Dominique Dhumieres <dominiq@lps.ens.fr> wrote:

Thanks for the patch. However in my opinion reordering transformations and
noy obeying parentheses are two different issues: optimizing f+a-f as a is one
thing, optimizing (f+a)-f is another (bad) one.

There is no difference between both cases for gcc.

Richard.

Follow-Ups:
- Re: [patch, rfc] PR32172 - Update -funsafe-math-optimizations flag definition
  - From: Dominique Dhumieres
- Re: [patch, rfc] PR32172 - Update -funsafe-math-optimizations flag definition
  - From: Brooks Moses

References:
- [patch, rfc] PR32172 - Update -funsafe-math-optimizations flag definition
  - From: Revital1 Eres
- Re: [patch, rfc] PR32172 - Update -funsafe-math-optimizations flag definition
  - From: Dominique Dhumieres

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