Function vmlal_lane_s16

pub unsafe fn vmlal_lane_s16(
    a: int32x4_t,
    b: int16x4_t,
    c: int16x4_t,
    const LANE: i32,
) -> int32x4_t

Available on (AArch64 or target_arch="arm64ec") and target feature neon only.

Vector widening multiply accumulate with scalar

Arm’s documentation