Function _mm_test_all_ones
#[target_feature(enable = "sse4.1")]
pub const fn _mm_test_all_ones(a: __m128i) -> i32Tests whether the specified bits in a 128-bit integer vector are all
ones.
Argument:
a- A 128-bit integer vector containing the bits to be tested.
Returns:
1- if the bits specified in the operand are all set to 1,0- otherwise.