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

llvm-svn: 203433
diff --git a/llvm/lib/Target/ARM/ARMCodeEmitter.cpp b/llvm/lib/Target/ARM/ARMCodeEmitter.cpp
index 3f81ab1..8e6b3c8 100644
--- a/llvm/lib/Target/ARM/ARMCodeEmitter.cpp
+++ b/llvm/lib/Target/ARM/ARMCodeEmitter.cpp
@@ -57,7 +57,7 @@
     bool IsPIC;
     bool IsThumb;
 
-    void getAnalysisUsage(AnalysisUsage &AU) const {
+    void getAnalysisUsage(AnalysisUsage &AU) const override {
       AU.addRequired<MachineModuleInfo>();
       MachineFunctionPass::getAnalysisUsage(AU);
     }
@@ -76,9 +76,9 @@
     /// machine instructions.
     uint64_t getBinaryCodeForInstr(const MachineInstr &MI) const;
 
-    bool runOnMachineFunction(MachineFunction &MF);
+    bool runOnMachineFunction(MachineFunction &MF) override;
 
-    virtual const char *getPassName() const {
+    const char *getPassName() const override {
       return "ARM Machine Code Emitter";
     }