Release build: guard dump functions with "ifndef NDEBUG"

No functional change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163344 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Analysis/IVUsers.cpp

@@ -273,9 +273,11 @@ void IVUsers::print(raw_ostream &OS, const Module *M) const {
   }
 }
 
+#ifndef NDEBUG
 void IVUsers::dump() const {
   print(dbgs());
 }
+#endif
 
 void IVUsers::releaseMemory() {
   Processed.clear();