title: Trouble disabling LLVM optimizations via pragma
body: <p>I have a chunk of code that crashes unless I build with optimizations off.  I'm building with LLVM compiler 2.0</p>
  
  <p>I would like to turn off optimizations by wrapping the offending code with a #pragma compiler directive; or turn off optimizations for an entire file.</p>
  
  <p>I've been digging in the clang manual and code; but nothing jumps out at me.</p>
  
  <p>Does anyone know how to change the optimizations for a single CU (as opposed to for the entire app)?</p>