OpenCL Status?

I have seen a fair amount of traffic on this list related to OpenCL in
the past few months. Can anyone comment on the current status of
OpenCL parsing in Clang?

I am interested in using Clang to statically analyze OpenCL kernels.
If necessary, I would be happy to help implement some of the
OpenCL-related features, but I would prefer not to reinvent the wheel
if possible.