Function core::arch::x86_64::_mm_cvtepi8_epi641.27.0[][src]

pub unsafe fn _mm_cvtepi8_epi64(a: __m128i) -> __m128i
This is supported on x86-64 and target feature sse4.1 only.

Sign extend packed 8-bit integers in the low 8 bytes of a to packed 64-bit integers

Intel’s documentation