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

llvm-svn: 202945
diff --git a/llvm/lib/Analysis/RegionPass.cpp b/llvm/lib/Analysis/RegionPass.cpp
index ac4e114..12d7ca3 100644
--- a/llvm/lib/Analysis/RegionPass.cpp
+++ b/llvm/lib/Analysis/RegionPass.cpp
@@ -189,11 +189,11 @@
   PrintRegionPass(const std::string &B, raw_ostream &o)
       : RegionPass(ID), Banner(B), Out(o) {}
 
-  virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+  void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.setPreservesAll();
   }
 
-  virtual bool runOnRegion(Region *R, RGPassManager &RGM) {
+  bool runOnRegion(Region *R, RGPassManager &RGM) override {
     Out << Banner;
     for (const auto &BB : R->blocks())
       BB->print(Out);