title: convert array of uint64_t to __m256i
body: <p>I have four <code>uint64_t</code> numbers and I wish to combine them as parts of a <code>__m256i</code>, however, I'm lost as to how to go about this.</p>
  
  <p>Here's one attempt (where <code>rax</code>, <code>rbx</code>, <code>rcx</code>, and <code>rdx</code> are <code>uint64_t</code>):</p>
  
  <pre><code>uint64_t a [4] = {rax,rbx,rcx,rcx};
  
  __m256i t = _mm256_load_si256((__m256i *) &amp;a);
  </code></pre>