diff --git a/lib/Transforms/IPO/ArgumentPromotion.cpp b/lib/Transforms/IPO/ArgumentPromotion.cpp
index f66a4735f46..51632a3318a 100644
--- a/lib/Transforms/IPO/ArgumentPromotion.cpp
+++ b/lib/Transforms/IPO/ArgumentPromotion.cpp
@@ -83,6 +83,8 @@ namespace {
     CallGraphNode *DoPromotion(Function *F,
                                SmallPtrSet<Argument*, 8> &ArgsToPromote,
                                SmallPtrSet<Argument*, 8> &ByValArgsToTransform);
+    
+    using llvm::Pass::doInitialization;
     bool doInitialization(CallGraph &CG) override;
     /// The maximum number of elements to expand, or 0 for unlimited.
     unsigned maxElements;
diff --git a/lib/Transforms/Scalar/LoadCombine.cpp b/lib/Transforms/Scalar/LoadCombine.cpp
index 846aa703c9c..648626a7c12 100644
--- a/lib/Transforms/Scalar/LoadCombine.cpp
+++ b/lib/Transforms/Scalar/LoadCombine.cpp
@@ -58,6 +58,8 @@ public:
         C(nullptr), DL(nullptr) {
     initializeSROAPass(*PassRegistry::getPassRegistry());
   }
+  
+  using llvm::Pass::doInitialization;
   bool doInitialization(Function &) override;
   bool runOnBasicBlock(BasicBlock &BB) override;
   void getAnalysisUsage(AnalysisUsage &AU) const override;