Function _mm_cmpistrs
#[target_feature(enable = "sse4.2")]
pub fn _mm_cmpistrs(a: __m128i, b: __m128i, IMM8: i32) -> i32Compares packed strings with implicit lengths in a and b using the
control in IMM8, and returns 1 if any character in a was null,
and 0 otherwise.