Function vqrdmulh_lane_s32 

pub fn vqrdmulh_lane_s32(
    a: int32x2_t,
    b: int32x2_t,
    const LANE: i32,
) -> int32x2_t

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

Vector rounding saturating doubling multiply high by scalar Arm’s documentation