Function _mm_cmp_ss
#[target_feature(enable = "avx")]
pub fn _mm_cmp_ss(a: __m128, b: __m128, IMM5: i32) -> __m128Compares the lower single-precision (32-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 3 packed elements from a to the upper elements of
returned vector.