title: _AddressOfReturnAddress() equivalent in Clang/LLVM?
body: <p>Visual C++ has <a href="http://msdn.microsoft.com/en-us/library/s975zw7k%28v=vs.100%29.aspx" rel="noreferrer">an intrinsic function called <code>_AddressOfReturnAddress</code></a> which returns the <em>address</em> of the current function's return address on the stack.  </p>
  
  <p><strong>Note</strong> that this is <em>not</em> the same as <a href="http://msdn.microsoft.com/en-US/library/64ez38eh%28v=vs.80%29.aspx" rel="noreferrer"><code>_ReturnAddress</code></a>, which only returns a <em>copy</em> of the return address.</p>
  
  <p>Is there any equivalent for <code>_AddressOfReturnAddress</code> in Clang/LLVM?</p>