[Nottingham] Compiler optimisation flags (gcc, g++)

[Roger Light]

Hi Martin,

>Any pitfalls with using the following compiler optimisations for an 
>Athlon Palomino cpu system?
>
>
>echo $CFLAGS
>-march=athlon-xp -O3 -fexpensive-optimizations -funroll-loops 
>-fomit-frame-pointer -fschedule-insns2 -minline-all-stringops 
>-mfancy-math-387 -mfp-ret-in-387 -m3dnow -msse -mfpmath=sse -mmmx 
>-malign-double -falign-functions=4 -preferred-stack-boundary=4 
>-fforce-addr -pipe
>
>and CXXFLAGS=CFLAGS

I can't offer any personal experience, but I bet a reasonable place to look would be the gentoo forums/lists/irc channels. There is bound to be people who have optimised to the point of breakage.

Where did you find all of those anyway?

Cheers,

Roger