Is structural analysis pass available?

Hi,

I recently proposed the RegionInfo pass for LLVM. It is not a complete
structural analysis pass, however it builds an sese region tree and can
probably be extended to classify the regions.

http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20100712/104247.html

I know James Stanier was once working on a structural analysis pass:
j.stanier@sussex.ac.uk

He implemented such a pass for LLVM, however the pass required some
cleanups and performance optimizations. I am not sure what the current
status of this work is.

Tobias