Arm complex multiplication intrinsics#144

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HEnquist wants to merge 5 commits intoejmahler:masterfrom

HEnquist:arm_complex_mul

Commits on Jan 11, 2024

Use complex mul-acc
HEnquist
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Commits on Jan 13, 2024

Commits on Jan 14, 2024

Some optimization of butterfly 4
HEnquist
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Commits on Jul 29, 2024

Update fcma feature
HEnquist
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