Function vld4_dup_p64 

pub unsafe fn vld4_dup_p64(a: *const u64) -> poly64x1x4_t

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

Load single 4-element structure and replicate to all lanes of four registers Arm’s documentation

Safety

• Neon intrinsic unsafe