Function vmlal_high_lane_u16 

pub fn vmlal_high_lane_u16(
    a: uint32x4_t,
    b: uint16x8_t,
    c: uint16x4_t,
    const LANE: i32,
) -> uint32x4_t

Available on target feature neon and (AArch64 or ARM64EC) only.

Multiply-add long Arm’s documentation