Release build: guard dump functions with "ifndef NDEBUG"

No functional change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163339 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/VirtRegMap.cpp

@@ -126,9 +126,11 @@ void VirtRegMap::print(raw_ostream &OS, const Module*) const {
   OS << '\n';
 }
 
+#ifndef NDEBUG
 void VirtRegMap::dump() const {
   print(dbgs());
 }
+#endif
 
 //===----------------------------------------------------------------------===//
 //                              VirtRegRewriter