I seeing serveral issues with 2013 Beta when compiling OpenCL kernels:
When compiling for CPU target (installed CPU i7-3770K) with the "-cl-strict-aliasing" option, I'm getting a build error (-43).
When compiling for iGPU target with "-cl-fast-relaxed-math" performance drops by 30%. This issue also occurs when using the 2012 SDK.
I can provide a reproducer if needed.