Make VPReverVectorPointer return false in mayHaveSideEffects

Author: arcbbb

llvm/lib/Transforms/Vectorize/VPlanRecipes.cpp

@@ -154,6 +154,7 @@ bool VPRecipeBase::mayHaveSideEffects() const {
   case VPDerivedIVSC:
   case VPPredInstPHISC:
   case VPScalarCastSC:
+  case VPReverseVectorPointerSC:
     return false;
   case VPInstructionSC:
     return mayWriteToMemory();