[AMDGPU][NewPM] Have consistent property changes in GCNDPPCombine (#106520)

Author: optimisan

llvm/lib/Target/AMDGPU/GCNDPPCombine.cpp

@@ -795,11 +795,11 @@ bool GCNDPPCombine::run(MachineFunction &MF) {
 
 PreservedAnalyses GCNDPPCombinePass::run(MachineFunction &MF,
                                          MachineFunctionAnalysisManager &) {
+  MFPropsModifier _(*this, MF);
+
   if (MF.getFunction().hasOptNone())
     return PreservedAnalyses::all();
 
-  MFPropsModifier _(*this, MF);
-
   bool Changed = GCNDPPCombine().run(MF);
   if (!Changed)
     return PreservedAnalyses::all();