Re: fftw3 non-pic k7 optimisations
* Paul Brossier:
> Two questions:
> - can anyone spot what in these codelets causes the non-pic ?
Tables of constants are addressed directly, not in some IP-relative
> - how much can it hurt to have this non-pic in fftw3 ?
It shouldn't matter much if all PIC code is grouped together in the
binary because few pages have to be copied in this case. PIC code
itself is always slower, significantly so if the code is using all
available integer registers.