Function core::arch::x86_64::_mm256_addsub_pd

pub unsafe fn _mm256_addsub_pd(a: __m256d, b: __m256d) -> __m256d

This is supported on x86-64 and target feature avx only.

Alternatively add and subtract packed double-precision (64-bit) floating-point elements in a to/from packed elements in b.

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