Function llvmint::x86::avx512_mask_lzcnt_q_128

pub unsafe extern "C" fn avx512_mask_lzcnt_q_128(
    a: i64x2, 
    b: i64x2, 
    c: i8
) -> i64x2

The llvm.x86.avx512.mask.lzcnt.q.128 intrinsic.