Function vst4_p64 

pub unsafe fn vst4_p64(a: *mut u64, b: poly64x1x4_t)

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 aes only.

Store multiple 4-element structures from four registers Arm’s documentation

Safety

• Neon intrinsic unsafe