Function svundef2_s64 

pub unsafe fn svundef2_s64() -> svint64x2_t

🔬This is a nightly-only experimental API. (stdarch_aarch64_sve #145052)

Available on (AArch64 or ARM64EC) and target feature sve only.

Create an uninitialized tuple of two vectors Arm’s documentation

Safety

• This creates an uninitialized value, and may be unsound (like core::mem::uninitialized).