diff --git a/llvm/tools/llvm-upgrade/UpgradeParser.cpp.cvs b/llvm/tools/llvm-upgrade/UpgradeParser.cpp.cvs
index 9d5a1da76290..93d91d328316 100644
--- a/llvm/tools/llvm-upgrade/UpgradeParser.cpp.cvs
+++ b/llvm/tools/llvm-upgrade/UpgradeParser.cpp.cvs
@@ -1542,6 +1542,7 @@ void Signedness::destroy() {
   } 
 }
 
+#ifndef NDEBUG
 void Signedness::dump() const {
   if (isComposite()) {
     if (sv->size() == 1) {
@@ -1565,6 +1566,7 @@ void Signedness::dump() const {
   } else
     std::cerr << ".";
 }
+#endif
 
 static inline Instruction::TermOps 
 getTermOp(TermOps op) {
diff --git a/llvm/tools/llvm-upgrade/UpgradeParser.y b/llvm/tools/llvm-upgrade/UpgradeParser.y
index ab06bb4789b8..f03a8c43b65a 100644
--- a/llvm/tools/llvm-upgrade/UpgradeParser.y
+++ b/llvm/tools/llvm-upgrade/UpgradeParser.y
@@ -1182,6 +1182,7 @@ void Signedness::destroy() {
   } 
 }
 
+#ifndef NDEBUG
 void Signedness::dump() const {
   if (isComposite()) {
     if (sv->size() == 1) {
@@ -1205,6 +1206,7 @@ void Signedness::dump() const {
   } else
     std::cerr << ".";
 }
+#endif
 
 static inline Instruction::TermOps 
 getTermOp(TermOps op) {
diff --git a/llvm/tools/llvm-upgrade/UpgradeParser.y.cvs b/llvm/tools/llvm-upgrade/UpgradeParser.y.cvs
index ab06bb4789b8..f03a8c43b65a 100644
--- a/llvm/tools/llvm-upgrade/UpgradeParser.y.cvs
+++ b/llvm/tools/llvm-upgrade/UpgradeParser.y.cvs
@@ -1182,6 +1182,7 @@ void Signedness::destroy() {
   } 
 }
 
+#ifndef NDEBUG
 void Signedness::dump() const {
   if (isComposite()) {
     if (sv->size() == 1) {
@@ -1205,6 +1206,7 @@ void Signedness::dump() const {
   } else
     std::cerr << ".";
 }
+#endif
 
 static inline Instruction::TermOps 
 getTermOp(TermOps op) {