Function svunpklo_s64 

pub fn svunpklo_s64(op: svint32_t) -> svint64_t

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

Available on (AArch64 or ARM64EC) and target feature sve and target feature sve2 only.

Unpack and extend low half Arm’s documentation