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
diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp
index a654648..84e147b 100644
--- a/lib/Analysis/ScalarEvolution.cpp
+++ b/lib/Analysis/ScalarEvolution.cpp
@@ -122,10 +122,12 @@
 // Implementation of the SCEV class.
 //
 
+#ifndef NDEBUG
 void SCEV::dump() const {
   print(dbgs());
   dbgs() << '\n';
 }
+#endif
 
 void SCEV::print(raw_ostream &OS) const {
   switch (getSCEVType()) {