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正如 chtz 所提到的,我使用的处理器不支持 FMA 功能,_mm256_fmadd_pd所以我使用了他提出的解决方法,效果很好: _mm256_add_pd(_mm256_mul_pd(aXX, bYY), cZZ)
_mm256_fmadd_pd
_mm256_add_pd(_mm256_mul_pd(aXX, bYY), cZZ)