Dear All, Now I have a container like this: DenseMap<const Loop *, int> D, so means that for each loop, it has a corresponding number. But for some optimizations, the LoopInfo will change, and with the new loop, can I still get the number? As I tried, the answer is no. So my question is: Am I right?(can’t find the number by using D.find(newloop)) Is there a method to solve this?(maybe update the loopinfo in DenseMap......or some method else) Thank you Regards, Hanbing LI -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20140417/8c792de4/attachment.html>