Mail Archives: pgcc/1999/05/10/18:14:21
On Mon, May 10, 1999 at 02:14:26PM -0700, Graham TerMarsch wrote:
> Have been trying out pgcc here on my K6-III system to see if I could actually
> see any performance improvement out of optimizing my compiles for this
> processor. I've tried '-mk6' and '-march=k6', but have only found the effect
> that it actually generates _slower_ code than egcs-1.1.2 does.
>
> So, uh, wanted to find out a bit more about what types of optimizations we're
> doing for K6 processors, and find out if anyone had other tips on cmd line
A different scheduling is used for the k6.
> FWIW, both the 'gzip' and 'xfree86' compiles were done with '-O2' for both
> egcs and pgcc compiles.
pgcc should be almost identical to egcs if only -O2 is used. Check the FAQ!
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