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Re: -freduce-all-givs and fortran
- To: Toon Moene <moene at knmi dot nl>
- Subject: Re: -freduce-all-givs and fortran
- From: Andreas Jaeger <aj at suse dot de>
- Date: Thu, 06 Sep 2001 14:15:55 +0200
- Cc: gcc at gcc dot gnu dot org
- References: <3B9748A0.24D30176@knmi.nl>
Toon Moene <moene@knmi.nl> writes:
>> Using -fno-move-all-movables -fno-reduce-all-givs is a
>> performance gain for 171.swim and 200.sixtrack but pessimizes
>> 172.[m]grid and 173.app[lu], 168.wupwise is indifferent.
>
> Fascinating ... Do 171.swim and 200.sixtrack profit from loop
> optimization *at all* ? What happens if you use
>
> -O2 -march=athlon -malign-double -fno-strength-reduce
I'll run some tests later. Anything else you like to see tested for
those two?
Andreas
--
Andreas Jaeger
SuSE Labs aj@suse.de
private aj@arthur.inka.de
http://www.suse.de/~aj