title: LLVM backend for a custom 19 bit processor
body: <p>Is it possible to create an LLVM target backend for a custom 19-bit processor, without having to write too much code in the LLVM source? Is this a correct DataLayout for LLVM, or it has to be multiples of 8-bit, e.g., 16 or 32?</p>
  
  <pre><code>DataLayout("e-p:19:19-a19:19") 
  </code></pre>