diff --git a/llvm/lib/CodeGen/SelectOptimize.cpp b/llvm/lib/CodeGen/SelectOptimize.cpp
--- a/llvm/lib/CodeGen/SelectOptimize.cpp
+++ b/llvm/lib/CodeGen/SelectOptimize.cpp
@@ -98,15 +98,15 @@
 
 class SelectOptimize : public FunctionPass {
   const TargetMachine *TM = nullptr;
-  const TargetSubtargetInfo *TSI;
+  const TargetSubtargetInfo *TSI = nullptr;
   const TargetLowering *TLI = nullptr;
   const TargetTransformInfo *TTI = nullptr;
-  const LoopInfo *LI;
-  DominatorTree *DT;
+  const LoopInfo *LI = nullptr;
+  DominatorTree *DT = nullptr;
   std::unique_ptr<BlockFrequencyInfo> BFI;
   std::unique_ptr<BranchProbabilityInfo> BPI;
-  ProfileSummaryInfo *PSI;
-  OptimizationRemarkEmitter *ORE;
+  ProfileSummaryInfo *PSI = nullptr;
+  OptimizationRemarkEmitter *ORE = nullptr;
   TargetSchedModel TSchedModel;
 
 public: