diff --git a/llvm/utils/TableGen/X86RecognizableInstr.cpp b/llvm/utils/TableGen/X86RecognizableInstr.cpp
index 503ba84cf933..a41d247edcae 100644
--- a/llvm/utils/TableGen/X86RecognizableInstr.cpp
+++ b/llvm/utils/TableGen/X86RecognizableInstr.cpp
@@ -476,7 +476,7 @@ void RecognizableInstr::adjustOperandEncoding(OperandEncoding &encoding) {
 
 void RecognizableInstr::handleOperand(bool optional, unsigned &operandIndex,
                                       unsigned &physicalOperandIndex,
-                                      unsigned &numPhysicalOperands,
+                                      unsigned numPhysicalOperands,
                                       const unsigned *operandMapping,
                                       OperandEncoding (*encodingFromString)
                                         (const std::string&,
diff --git a/llvm/utils/TableGen/X86RecognizableInstr.h b/llvm/utils/TableGen/X86RecognizableInstr.h
index 10bc315af87d..d25eeea50189 100644
--- a/llvm/utils/TableGen/X86RecognizableInstr.h
+++ b/llvm/utils/TableGen/X86RecognizableInstr.h
@@ -177,7 +177,7 @@ private:
   void handleOperand(bool optional,
                      unsigned &operandIndex,
                      unsigned &physicalOperandIndex,
-                     unsigned &numPhysicalOperands,
+                     unsigned numPhysicalOperands,
                      const unsigned *operandMapping,
                      OperandEncoding (*encodingFromString)
                        (const std::string&,