Function core::arch::x86::_mm_add_si64

pub unsafe fn _mm_add_si64(a: __m64, b: __m64) -> __m64

🔬 This is a nightly-only experimental API. (stdsimd #48556)

This is supported on x86 and target feature sse2,mmx only.

Adds two signed or unsigned 64-bit integer values, returning the lower 64 bits of the sum.