What is aliasing and how does it affect performance?
<p>At the GoingNative event, during the <a href="http://channel9.msdn.com/Events/GoingNative/GoingNative-2012/Interactive-Panel-Ask-Us-Anything-" rel="nofollow">Interactive Panel</a> on Day2 at the 9 minute mark, Chandler Carruth says:</p>

<blockquote>
  <p>Pointers create aliasing problems. They slow down your binaries not speed them up.</p>
</blockquote>

<p>What does this mean? Can this be illustrated with a (simple) example?</p>
