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Re: -Os is weak...
On Thu, Sep 16, 2010 at 10:55:22AM +0200, Andi Kleen wrote:
> Try reading some examples from http://embed.cs.utah.edu/embarrassing/
> Since the criteria of the comparisons is code size it can show
> you where gcc is behind some other compilers
>
> (but note that these comparisons do not include the best compilers
> for small size and also do not run with -Os currently)
I'm not denying that there is lots of room for -Os code size improvements,
but from the http://embed.cs.utah.edu/embarrassing/ results
GCC doesn't perform that bad in comparison with other compilers
(gcc 3.4 best, then icc and then gcc 4.5), and all the results there
were from -Os compilations across the different compilers.
Jakub