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/RegionInfo.cpp b/lib/Analysis/RegionInfo.cpp
index ea5bf02..0f9a8b3 100644
--- a/lib/Analysis/RegionInfo.cpp
+++ b/lib/Analysis/RegionInfo.cpp
@@ -427,9 +427,11 @@
     OS.indent(level*2) << "} \n";
 }
 
+#ifndef NDEBUG
 void Region::dump() const {
   print(dbgs(), true, getDepth(), printStyle.getValue());
 }
+#endif
 
 void Region::clearNodeCache() {
   // Free the cached nodes.