Ng/neon #40
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Ng/neon #40
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Integration of neon intrinsics from https://github.com/cothan/Falcon-Arm for the aarch64 optimized fft with our dynamic precomputed tables generator.
It is not fully integrated yet, but the speed can already be benchmarked on aarch64 machines (spqlios-cplx-fft-bench).
The core fft strategy has been turned into a reusable template that can be used without loss in each specialization: ref, avx, neon (to be tested in future PRs).
Ifft will also be done later.