* [x] `register simde__m128i xmm0;` -\> `simde__m128i xmm0;`
* [x] `simde__m128i xmm0 = simde_mm_abs_epi16(rxF\[i\]);` declaration in for loop
* [x] `int nb_re64 = nb_re >> 1;` would be better as `int last2re = (nb_re >> 1) - 1;`
* [x] `simde_m_punpckhdq()` is better known as `simde_mm_unpackhi_pi32()`