Function vmull_n_s32 

pub fn vmull_n_s32(a: int32x2_t, b: i32) -> int64x2_t

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

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

Vector long multiply with scalar Arm’s documentation