Function vgetq_lane_u64 

pub fn vgetq_lane_u64(v: uint64x2_t, const IMM5: i32) -> u64

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

Move vector element to general-purpose register Arm’s documentation