Function _mm_cmp_sd
#[target_feature(enable = "avx")]
pub fn _mm_cmp_sd(a: __m128d, b: __m128d, IMM5: i32) -> __m128dCompares the lower double-precision (64-bit) floating-point element in
a and b based on the comparison operand specified by IMM5,
store the result in the lower element of returned vector,
and copies the upper element from a to the upper element of returned
vector.