Function core::arch::x86::_mm_cmpestrm

pub unsafe fn _mm_cmpestrm(
    a: __m128i,
    la: i32,
    b: __m128i,
    lb: i32,
    const IMM8: i32
) -> __m128i

Available on (x86 or x86-64) and target feature sse4.2 and x86 only.

Compares packed strings in a and b with lengths la and lb using the control in IMM8, and return the generated mask.

Intel’s documentation