Function vmov_n_s64 

pub fn vmov_n_s64(value: i64) -> int64x1_t

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

Available on (AArch64 or target_arch=arm64ec) and target feature neon and target feature v7 only.

Duplicate vector element to vector or scalar Arm’s documentation