[−][src]Function safe_arch::convert_to_m256d_from_m128

#[must_use]pub fn convert_to_m256d_from_m128(a: m128) -> m256d
This is supported with target feature avx only.

Convert f32 lanes to be f64 lanes.

let a = m128::from([4.0, 5.0, 6.0, 7.0]);
let b = convert_to_m256d_from_m128(a).to_array();
assert_eq!(b, [4.0, 5.0, 6.0, 7.0]);