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Re: cr logical instruction for powerpc target

From: Régis Odeyé <rod at thalescomputers dot fr>
To: David Edelsohn <dje at watson dot ibm dot com>
Cc: gcc at gcc dot gnu dot org
Date: Tue, 10 Aug 2004 16:44:13 +0200
Subject: Re: cr logical instruction for powerpc target
Organization: Thales Computers
References: <4118BD16.5040109@thalescomputers.fr> <200408101423.i7AEN6D27398@makai.watson.ibm.com>

David Edelsohn wrote:

	GCC currently looks for opportunities to use CR logical
instructions to compare the results of two comparisons.  GCC does not use
CR logical instructions to cascade comparisons.

Thanks a lot.

Do you know if there is any specific options of GCC to replace those CR logical instructions by another instructions sequences (using copies of CRs to GPR and logical operation on the GPRs) ?

Regards.

--
Régis Odeyé
Thales Computers, a Thales company. www.thalescomputers.com
E-mail: rod@thalescomputers.fr
Tel: +33 (0)4 98 16 34 86 - Fax: +33 (0)4 98 16 34 01

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