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Re: [avr-gcc-list] Unused registers saves/restores ?

From: Neil Johnson
Subject: Re: [avr-gcc-list] Unused registers saves/restores ?
Date: Tue, 10 Jun 2003 00:05:09 +0100 (BST)

> >From the GCC 3.3 manual:
> ------
> -fssa
>      Perform optimizations in static single assignment
> form. Each function's flow graph is translated into SSA
> form, optimizations are performed, and the flow graph is
> translated back from SSA form. Users should not specify
> this option, since it is not yet ready for production use.
> ------

*sigh* You would have thought that an analytical tool as old as SSA would
have made it into GCC by now?  Oh well, back to research ;-)

Neil Johnson :: Computer Laboratory :: University of Cambridge ::
http://www.njohnson.co.uk          http://www.cl.cam.ac.uk/~nej22
----  IEE Cambridge Branch: http://www.iee-cambridge.org.uk  ----

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