Function _mm_cvtss_sd
#[target_feature(enable = "sse2")]
pub const fn _mm_cvtss_sd(a: __m128d, b: __m128) -> __m128dConverts the lower single-precision (32-bit) floating-point element in b
to a double-precision (64-bit) floating-point element, store the result in
the lower element of the return value, and copies the upper element from a
to the upper element the return value.