diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index 2302697af2ee..3a862590e6b3 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -20570,6 +20570,7 @@ static SDValue LowerVSETCC(SDValue Op, const X86Subtarget &Subtarget,
   }
 
   MVT VTOp0 = Op0.getSimpleValueType();
+  (void)VTOp0;
   assert(VTOp0 == Op1.getSimpleValueType() &&
          "Expected operands with same type!");
   assert(VT.getVectorNumElements() == VTOp0.getVectorNumElements() &&