[C++11] Add 'override' keyword to virtual methods that override their base class.

llvm-svn: 202953
diff --git a/llvm/lib/Transforms/Scalar/StructurizeCFG.cpp b/llvm/lib/Transforms/Scalar/StructurizeCFG.cpp
index bcc7dfd..8d4aaca 100644
--- a/llvm/lib/Transforms/Scalar/StructurizeCFG.cpp
+++ b/llvm/lib/Transforms/Scalar/StructurizeCFG.cpp
@@ -235,15 +235,15 @@
   }
 
   using Pass::doInitialization;
-  virtual bool doInitialization(Region *R, RGPassManager &RGM);
+  bool doInitialization(Region *R, RGPassManager &RGM) override;
 
-  virtual bool runOnRegion(Region *R, RGPassManager &RGM);
+  bool runOnRegion(Region *R, RGPassManager &RGM) override;
 
-  virtual const char *getPassName() const {
+  const char *getPassName() const override {
     return "Structurize control flow";
   }
 
-  void getAnalysisUsage(AnalysisUsage &AU) const {
+  void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.addRequiredID(LowerSwitchID);
     AU.addRequired<DominatorTreeWrapperPass>();
     AU.addPreserved<DominatorTreeWrapperPass>();