diff --git a/llvm/utils/TableGen/CodeGenDAGPatterns.cpp b/llvm/utils/TableGen/CodeGenDAGPatterns.cpp
index 823f437..717090a 100644
--- a/llvm/utils/TableGen/CodeGenDAGPatterns.cpp
+++ b/llvm/utils/TableGen/CodeGenDAGPatterns.cpp
@@ -2881,6 +2881,7 @@
     CodeGenInstruction &CGI = Target.getInstruction(Instrs[i]);
     const DAGInstruction &DI = parseInstructionPattern(CGI, LI, Instructions);
 
+    (void)DI;
     DEBUG(DI.getPattern()->dump());
   }