Function vqdmull_n_s16 

pub fn vqdmull_n_s16(a: int16x4_t, b: i16) -> int32x4_t

🔬This is a nightly-only experimental API. (stdarch_arm_neon_intrinsics #111800)

Available on ARM and (AArch64 or ARM64EC or target feature v7) and (ARM or AArch64 or ARM64EC) and target feature neon only.

Vector saturating doubling long multiply with scalar Arm’s documentation