[RISCV] Fix -Wunused-variable in -DLLVM_ENABLE_ASSERTIONS=off builds

diff --git a/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp b/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp
index 94956b4..6e7ae9e 100644 (file)
--- a/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp
+++ b/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp
@@ -2248,6 +2248,7 @@ bool RISCVDAGToDAGISel::doPeepholeMaskedRVV(SDNode *N) {
          RISCVII::hasDummyMaskOp(UnmaskedMCID.TSFlags) &&
          !RISCVII::hasVecPolicyOp(UnmaskedMCID.TSFlags) &&
          "Unexpected pseudo to transform to");
+  (void)UnmaskedMCID;
 
   SmallVector<SDValue, 8> Ops;
   // Skip the merge operand at index 0.