!fixup update VPMulAccumulateReduction::clone().

Author: ElvisWang123

llvm/lib/Transforms/Vectorize/VPlan.h

@@ -2638,10 +2638,8 @@ class VPMulAccumulateReductionRecipe : public VPReductionRecipe {
             MulAcc->getCondOp(), MulAcc->isOrdered(),
             WrapFlagsTy(MulAcc->hasNoUnsignedWrap(), MulAcc->hasNoSignedWrap()),
             MulAcc->getDebugLoc()),
-        ExtOp(MulAcc->getExtOpcode()), IsNonNeg(MulAcc->isNonNeg()) {
-    if (MulAcc->isExtended())
-      ResultTy = MulAcc->getResultType();
-  }
+        ExtOp(MulAcc->getExtOpcode()), IsNonNeg(MulAcc->isNonNeg()),
+        ResultTy(MulAcc->getResultType()) {}
 
 public:
   VPMulAccumulateReductionRecipe(VPReductionRecipe *R, VPWidenRecipe *Mul,