ARM指令优化-Coding for NEON - Part 5: Rearranging Vectors
IntroductionWhenwritingcodeforNEON,youmayfindthatsometimes,thedatainyourregistersarenotquiteinthecorrectformatforyouralgorithm.Youmayneedtorearrangetheelementsinyourvectorssothatsubsequentarithmeticca