On Mon, Aug 21, 2006 at 02:35:49AM +0200, Adrian Bunk wrote:
> On Sat, Aug 19, 2006 at 06:45:33AM +0200, Willy Tarreau wrote:
> >...
> > Sometimes it will be compilers, but not by that much. Gcc3.[34] generally
> > produce bigger code than 2.95 at -O2, but I don't think that people in the
> > embedded world still use 2.95 much.
>
> Comparing code size different gcc versions produce with -O2 is a bit
> unfair, the size of -Os code is more important in this case.
Yes, but the code produced by gcc-3.[34] -Os is so unoptimized that it's
practically unusable for anything oocasionnaly using the CPU. I use it
mainly for bootloaders and tools like this. On the opposite, gcc-2.95 -Os
was still relatively well optimized, which often resulted in faster execution
due to smaller cache footprint. And for many programs, I have relied on this
combination.
>
> > Cheers,
> > Willy
>
> cu
> Adrian
Cheers,
Willy
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