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Re: General Optimization questions
- To: gcc at gcc dot gnu dot org
- Subject: Re: General Optimization questions
- From: Marc Lehmann <pcg at opengroup dot org>
- Date: Wed, 15 Sep 1999 02:43:30 +0200
- References: <37DDC19C.EE05E26E@cup.hp.com>
On Mon, Sep 13, 1999 at 08:31:40PM -0700, Dara Hazeghi <sassan@cup.hp.com> wrote:
> I'm attempting to wring the last bit of speed out of gcc and would like
> to know where one can find a comprehensive list of gcc's flags. I keep
> discovering more and more which are not in the man pages. Is such a
> resource to be found? Lastly are there any particular flags that are
> recommended for FPU intensive code on P-II ? Thanks.
-funroll-all-loops is an essential flag. You might also experiment with
-fschedule-insns, which might penalize integer code, however.
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