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

llvm-svn: 202945
diff --git a/llvm/lib/Analysis/LoopPass.cpp b/llvm/lib/Analysis/LoopPass.cpp
index 90f64fb..38e753f 100644
--- a/llvm/lib/Analysis/LoopPass.cpp
+++ b/llvm/lib/Analysis/LoopPass.cpp
@@ -33,11 +33,11 @@
   PrintLoopPass(const std::string &B, raw_ostream &o)
       : LoopPass(ID), Banner(B), Out(o) {}
 
-  virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+  void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.setPreservesAll();
   }
 
-  bool runOnLoop(Loop *L, LPPassManager &) {
+  bool runOnLoop(Loop *L, LPPassManager &) override {
     Out << Banner;
     for (Loop::block_iterator b = L->block_begin(), be = L->block_end();
          b != be;