3D FFT with AVX Using Dynamic Programming Search

opts := SIMDGlobals.getOpts(AVX_4x64f);
transform := TRC(MDDFT([64,64,64])).withTags(opts.tags);
best := DP(transform, rec(), opts);
ruletree := best[1].ruletree;
icode := CodeRuleTree(ruletree, opts);
PrintTo("AVX_3DDFT64.c", PrintCode("AVX_3DDFT64", icode, opts));