Function _mm_sign_epi8

pub unsafe fn _mm_sign_epi8(a: __m128i, b: __m128i) -> __m128i

Available on (x86 or x86-64) and target feature ssse3 and x86-64 only.

Negates packed 8-bit integers in a when the corresponding signed 8-bit integer in b is negative, and returns the result. Elements in result are zeroed out when the corresponding element in b is zero.

Intel’s documentation