Function vwidenhigh8x16_u 

pub fn vwidenhigh8x16_u<E>(
    into: &mut E,
    dst: impl Into<VReg>,
    src: impl Into<VReg>,
)
where
    E: Extend<u8>,

Available on crate feature encode only.

Widens the high lanes of the input vector, as unsigned, to twice the width.