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Re: Optimising std::find on x86 and PPC

From: Paolo Carlini <pcarlini at suse dot de>
To: Andrew Pinski <pinskia at physics dot uc dot edu>
Cc: Gabriel Dos Reis <gdr at integrable-solutions dot net>,Zdenek Dvorak <rakdver at atrey dot karlin dot mff dot cuni dot cz>, gcc at gcc dot gnu dot org,Theodore Papadopoulo <Theodore dot Papadopoulo at sophia dot inria dot fr>,Chris Jefferson <caj at cs dot york dot ac dot uk>,libstdc++ <libstdc++ at gcc dot gnu dot org>
Date: Tue, 14 Dec 2004 23:06:08 +0100
Subject: Re: Optimising std::find on x86 and PPC
References: <200412141909.iBEJ9XZ7027097@mururoa.inria.fr> <41BF4753.3070803@suse.de> <41BF4E0F.5020703@suse.de> <m3sm68zhga.fsf@uniton.integrable-solutions.net> <CD4CE56A-4E1A-11D9-8F62-000A95D692F4@physics.uc.edu>

Andrew Pinski wrote:

The thing which is confusing the loop unroller is the increment by 4 and
nothing else.

Interesting. Therefore, maybe, the problem could be rather easy to fix. At this point that's the most important thing, in my opinion...

Paolo.

References:
- Re: Optimising std::find on x86 and PPC
  - From: Theodore Papadopoulo
- Re: Optimising std::find on x86 and PPC
  - From: Paolo Carlini
- Re: Optimising std::find on x86 and PPC
  - From: Paolo Carlini
- Re: Optimising std::find on x86 and PPC
  - From: Gabriel Dos Reis
- Re: Optimising std::find on x86 and PPC
  - From: Andrew Pinski

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