The previous output was next to useless if *any* exit was not computable. If we have more than one exit, show the exit count for each so that it's easier to see what's going from with SCEV analysis when debugging.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@364579 91177308-0d34-0410-b5e6-96231b3b80d8