pub unsafe fn _mm_cmpestrs(
    a: __m128i,
    la: i32,
    b: __m128i,
    lb: i32,
    const IMM8: i32,
) -> i32Available on (x86 or x86-64) and target feature 
sse4.2 and x86-64 only.Expand description
Compares packed strings in a and b with lengths la and lb
using the control in IMM8, and return 1 if any character in
a was null, and 0 otherwise.