main() { // enable flush to zero _mm_setcsr(_MM_FLUSH_ZERO_ON | _MM_MASK_UNDERFLOW | _mm_getcsr());

// enable denormals are zero _mm_setcsr(_MM_DENORM_ZERO_ON | _mm_getcsr()); }

hm ... i wasn't aware that gnu defines these macros, since i only read about them in the icc manual ...

t