Function core::arch::x86_64::_mm_hsub_pd

pub unsafe fn _mm_hsub_pd(a: __m128d, b: __m128d) -> __m128d

This is supported on x86-64 and target feature sse3 only.

Horizontally subtract adjacent pairs of double-precision (64-bit) floating-point elements in a and b, and pack the results.

Intel’s documentation