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Re: Ultrasparc-III+ performance of GCC 3.1
- From: Jeff Sturm <jsturm at one-point dot com>
- To: "Alaeddin A. Aydiner" <aydiner at empc22 dot ece dot uiuc dot edu>
- Cc: gcc at gcc dot gnu dot org
- Date: Wed, 2 Oct 2002 17:47:44 -0400 (EDT)
- Subject: Re: Ultrasparc-III+ performance of GCC 3.1
On Wed, 2 Oct 2002, Alaeddin A. Aydiner wrote:
> The flags I have used thus far are:
>
> -m64 -O3 -mcpu=ultrasparc -mtune=ultrasparc
Did you try -m32? -O2? any other optimization levels?
> Would upgrading to GCC 3.1.1 or 3.2 help? The release notes do not seem
> to say much about Sparcs.
The optimization passes in GCC aren't CPU specific for the most part.
I doubt if anyone here can really answer your question, especially not
knowing anything about your code. Why not try it and see?
Jeff