[fpc-devel] Difficulty in specifying record alignment... and more compiler optimisation shenanigans!

Florian Klämpfl florian at freepascal.org
Wed Oct 23 22:20:50 CEST 2019

Am 22.10.19 um 05:01 schrieb J. Gareth Moreton:
> mulpd    %xmm0, %xmm0 { Calculates "re * re" and "im * im" simultaneously }
> haddpd    %xmm0, %xmm0 { Adds the above multiplications together 
> (horizontal add) }

Unfortunatly, those horizontal operations are normally not very 
efficient IIRC.

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