Hmm.
bash-4.1$
arm-none-linux-gnueabi-gcc -O3 -march=armv6j -mtune=arm1136jf-s -mfpu=vfp -fomit-frame-pointer -o ffttest-arm radix4fft.c testfft.c testmain.c -lm
Any way to squeeze a bit more performance out of that in terms of compilation?
*Goes and googles things.*
Well -03 from
http://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html looks to be as good as it gets - I vaguely recall someone posting a nice set of args but that could have been for the K5.
Cheers.