Use 'override/final' instead of 'virtual' for overridden methods

The patch is generated using clang-tidy misc-use-override check.

This command was used:

  tools/clang/tools/extra/clang-tidy/tool/run-clang-tidy.py \
    -checks='-*,misc-use-override' -header-filter='llvm|clang' \
    -j=32 -fix -format

http://reviews.llvm.org/D8925



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234679 91177308-0d34-0410-b5e6-96231b3b80d8

examples/ExceptionDemo/ExceptionDemo.cpp

@@ -1573,7 +1573,7 @@ public:
                                  std::runtime_error::operator=(toCopy)));
   }
 
-  virtual ~OurCppRunException (void) throw () {}
+  ~OurCppRunException(void) throw() override {}
 };
 } // end anonymous namespace
 

examples/Kaleidoscope/Chapter3/toy.cpp

@@ -93,7 +93,7 @@ class NumberExprAST : public ExprAST {
   double Val;
 public:
   NumberExprAST(double val) : Val(val) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// VariableExprAST - Expression class for referencing a variable, like "a".
@@ -101,7 +101,7 @@ class VariableExprAST : public ExprAST {
   std::string Name;
 public:
   VariableExprAST(const std::string &name) : Name(name) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// BinaryExprAST - Expression class for a binary operator.
@@ -111,7 +111,7 @@ class BinaryExprAST : public ExprAST {
 public:
   BinaryExprAST(char op, ExprAST *lhs, ExprAST *rhs) 
     : Op(op), LHS(lhs), RHS(rhs) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// CallExprAST - Expression class for function calls.
@@ -121,7 +121,7 @@ class CallExprAST : public ExprAST {
 public:
   CallExprAST(const std::string &callee, std::vector<ExprAST*> &args)
     : Callee(callee), Args(args) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// PrototypeAST - This class represents the "prototype" for a function,

examples/Kaleidoscope/Chapter4/toy.cpp

@@ -107,7 +107,7 @@ class NumberExprAST : public ExprAST {
 
 public:
   NumberExprAST(double val) : Val(val) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// VariableExprAST - Expression class for referencing a variable, like "a".
@@ -116,7 +116,7 @@ class VariableExprAST : public ExprAST {
 
 public:
   VariableExprAST(const std::string &name) : Name(name) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// BinaryExprAST - Expression class for a binary operator.
@@ -127,7 +127,7 @@ class BinaryExprAST : public ExprAST {
 public:
   BinaryExprAST(char op, ExprAST *lhs, ExprAST *rhs)
       : Op(op), LHS(lhs), RHS(rhs) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// CallExprAST - Expression class for function calls.
@@ -138,7 +138,7 @@ class CallExprAST : public ExprAST {
 public:
   CallExprAST(const std::string &callee, std::vector<ExprAST *> &args)
       : Callee(callee), Args(args) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// PrototypeAST - This class represents the "prototype" for a function,
@@ -452,13 +452,13 @@ class HelpingMemoryManager : public SectionMemoryManager {
 
 public:
   HelpingMemoryManager(MCJITHelper *Helper) : MasterHelper(Helper) {}
-  virtual ~HelpingMemoryManager() {}
+  ~HelpingMemoryManager() override {}
 
   /// This method returns the address of the specified symbol.
   /// Our implementation will attempt to find symbols in other
   /// modules associated with the MCJITHelper to cross link symbols
   /// from one generated module to another.
-  virtual uint64_t getSymbolAddress(const std::string &Name) override;
+  uint64_t getSymbolAddress(const std::string &Name) override;
 
 private:
   MCJITHelper *MasterHelper;

examples/Kaleidoscope/Chapter5/toy.cpp

@@ -125,7 +125,7 @@ class NumberExprAST : public ExprAST {
 
 public:
   NumberExprAST(double val) : Val(val) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// VariableExprAST - Expression class for referencing a variable, like "a".
@@ -134,7 +134,7 @@ class VariableExprAST : public ExprAST {
 
 public:
   VariableExprAST(const std::string &name) : Name(name) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// BinaryExprAST - Expression class for a binary operator.
@@ -145,7 +145,7 @@ class BinaryExprAST : public ExprAST {
 public:
   BinaryExprAST(char op, ExprAST *lhs, ExprAST *rhs)
       : Op(op), LHS(lhs), RHS(rhs) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// CallExprAST - Expression class for function calls.
@@ -156,7 +156,7 @@ class CallExprAST : public ExprAST {
 public:
   CallExprAST(const std::string &callee, std::vector<ExprAST *> &args)
       : Callee(callee), Args(args) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// IfExprAST - Expression class for if/then/else.
@@ -166,7 +166,7 @@ class IfExprAST : public ExprAST {
 public:
   IfExprAST(ExprAST *cond, ExprAST *then, ExprAST *_else)
       : Cond(cond), Then(then), Else(_else) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// ForExprAST - Expression class for for/in.
@@ -178,7 +178,7 @@ public:
   ForExprAST(const std::string &varname, ExprAST *start, ExprAST *end,
              ExprAST *step, ExprAST *body)
       : VarName(varname), Start(start), End(end), Step(step), Body(body) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// PrototypeAST - This class represents the "prototype" for a function,

examples/Kaleidoscope/Chapter6/toy.cpp

@@ -133,7 +133,7 @@ class NumberExprAST : public ExprAST {
 
 public:
   NumberExprAST(double val) : Val(val) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// VariableExprAST - Expression class for referencing a variable, like "a".
@@ -142,7 +142,7 @@ class VariableExprAST : public ExprAST {
 
 public:
   VariableExprAST(const std::string &name) : Name(name) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// UnaryExprAST - Expression class for a unary operator.
@@ -153,7 +153,7 @@ class UnaryExprAST : public ExprAST {
 public:
   UnaryExprAST(char opcode, ExprAST *operand)
       : Opcode(opcode), Operand(operand) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// BinaryExprAST - Expression class for a binary operator.
@@ -164,7 +164,7 @@ class BinaryExprAST : public ExprAST {
 public:
   BinaryExprAST(char op, ExprAST *lhs, ExprAST *rhs)
       : Op(op), LHS(lhs), RHS(rhs) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// CallExprAST - Expression class for function calls.
@@ -175,7 +175,7 @@ class CallExprAST : public ExprAST {
 public:
   CallExprAST(const std::string &callee, std::vector<ExprAST *> &args)
       : Callee(callee), Args(args) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// IfExprAST - Expression class for if/then/else.
@@ -185,7 +185,7 @@ class IfExprAST : public ExprAST {
 public:
   IfExprAST(ExprAST *cond, ExprAST *then, ExprAST *_else)
       : Cond(cond), Then(then), Else(_else) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// ForExprAST - Expression class for for/in.
@@ -197,7 +197,7 @@ public:
   ForExprAST(const std::string &varname, ExprAST *start, ExprAST *end,
              ExprAST *step, ExprAST *body)
       : VarName(varname), Start(start), End(end), Step(step), Body(body) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// PrototypeAST - This class represents the "prototype" for a function,

examples/Kaleidoscope/Chapter7/toy.cpp

@@ -138,7 +138,7 @@ class NumberExprAST : public ExprAST {
 
 public:
   NumberExprAST(double val) : Val(val) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// VariableExprAST - Expression class for referencing a variable, like "a".
@@ -148,7 +148,7 @@ class VariableExprAST : public ExprAST {
 public:
   VariableExprAST(const std::string &name) : Name(name) {}
   const std::string &getName() const { return Name; }
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// UnaryExprAST - Expression class for a unary operator.
@@ -159,7 +159,7 @@ class UnaryExprAST : public ExprAST {
 public:
   UnaryExprAST(char opcode, ExprAST *operand)
       : Opcode(opcode), Operand(operand) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// BinaryExprAST - Expression class for a binary operator.
@@ -170,7 +170,7 @@ class BinaryExprAST : public ExprAST {
 public:
   BinaryExprAST(char op, ExprAST *lhs, ExprAST *rhs)
       : Op(op), LHS(lhs), RHS(rhs) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// CallExprAST - Expression class for function calls.
@@ -181,7 +181,7 @@ class CallExprAST : public ExprAST {
 public:
   CallExprAST(const std::string &callee, std::vector<ExprAST *> &args)
       : Callee(callee), Args(args) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// IfExprAST - Expression class for if/then/else.
@@ -191,7 +191,7 @@ class IfExprAST : public ExprAST {
 public:
   IfExprAST(ExprAST *cond, ExprAST *then, ExprAST *_else)
       : Cond(cond), Then(then), Else(_else) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// ForExprAST - Expression class for for/in.
@@ -203,7 +203,7 @@ public:
   ForExprAST(const std::string &varname, ExprAST *start, ExprAST *end,
              ExprAST *step, ExprAST *body)
       : VarName(varname), Start(start), End(end), Step(step), Body(body) {}
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// VarExprAST - Expression class for var/in
@@ -216,7 +216,7 @@ public:
              ExprAST *body)
       : VarNames(varnames), Body(body) {}
 
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// PrototypeAST - This class represents the "prototype" for a function,

examples/Kaleidoscope/Chapter8/toy.cpp

@@ -221,10 +221,10 @@ class NumberExprAST : public ExprAST {
 
 public:
   NumberExprAST(double val) : Val(val) {}
-  virtual std::ostream &dump(std::ostream &out, int ind) {
+  std::ostream &dump(std::ostream &out, int ind) override {
     return ExprAST::dump(out << Val, ind);
   }
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// VariableExprAST - Expression class for referencing a variable, like "a".
@@ -235,10 +235,10 @@ public:
   VariableExprAST(SourceLocation Loc, const std::string &name)
       : ExprAST(Loc), Name(name) {}
   const std::string &getName() const { return Name; }
-  virtual std::ostream &dump(std::ostream &out, int ind) {
+  std::ostream &dump(std::ostream &out, int ind) override {
     return ExprAST::dump(out << Name, ind);
   }
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// UnaryExprAST - Expression class for a unary operator.
@@ -249,12 +249,12 @@ class UnaryExprAST : public ExprAST {
 public:
   UnaryExprAST(char opcode, ExprAST *operand)
       : Opcode(opcode), Operand(operand) {}
-  virtual std::ostream &dump(std::ostream &out, int ind) {
+  std::ostream &dump(std::ostream &out, int ind) override {
     ExprAST::dump(out << "unary" << Opcode, ind);
     Operand->dump(out, ind + 1);
     return out;
   }
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// BinaryExprAST - Expression class for a binary operator.
@@ -265,13 +265,13 @@ class BinaryExprAST : public ExprAST {
 public:
   BinaryExprAST(SourceLocation Loc, char op, ExprAST *lhs, ExprAST *rhs)
       : ExprAST(Loc), Op(op), LHS(lhs), RHS(rhs) {}
-  virtual std::ostream &dump(std::ostream &out, int ind) {
+  std::ostream &dump(std::ostream &out, int ind) override {
     ExprAST::dump(out << "binary" << Op, ind);
     LHS->dump(indent(out, ind) << "LHS:", ind + 1);
     RHS->dump(indent(out, ind) << "RHS:", ind + 1);
     return out;
   }
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// CallExprAST - Expression class for function calls.
@@ -283,13 +283,13 @@ public:
   CallExprAST(SourceLocation Loc, const std::string &callee,
               std::vector<ExprAST *> &args)
       : ExprAST(Loc), Callee(callee), Args(args) {}
-  virtual std::ostream &dump(std::ostream &out, int ind) {
+  std::ostream &dump(std::ostream &out, int ind) override {
     ExprAST::dump(out << "call " << Callee, ind);
     for (ExprAST *Arg : Args)
       Arg->dump(indent(out, ind + 1), ind + 1);
     return out;
   }
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// IfExprAST - Expression class for if/then/else.
@@ -299,14 +299,14 @@ class IfExprAST : public ExprAST {
 public:
   IfExprAST(SourceLocation Loc, ExprAST *cond, ExprAST *then, ExprAST *_else)
       : ExprAST(Loc), Cond(cond), Then(then), Else(_else) {}
-  virtual std::ostream &dump(std::ostream &out, int ind) {
+  std::ostream &dump(std::ostream &out, int ind) override {
     ExprAST::dump(out << "if", ind);
     Cond->dump(indent(out, ind) << "Cond:", ind + 1);
     Then->dump(indent(out, ind) << "Then:", ind + 1);
     Else->dump(indent(out, ind) << "Else:", ind + 1);
     return out;
   }
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// ForExprAST - Expression class for for/in.
@@ -318,7 +318,7 @@ public:
   ForExprAST(const std::string &varname, ExprAST *start, ExprAST *end,
              ExprAST *step, ExprAST *body)
       : VarName(varname), Start(start), End(end), Step(step), Body(body) {}
-  virtual std::ostream &dump(std::ostream &out, int ind) {
+  std::ostream &dump(std::ostream &out, int ind) override {
     ExprAST::dump(out << "for", ind);
     Start->dump(indent(out, ind) << "Cond:", ind + 1);
     End->dump(indent(out, ind) << "End:", ind + 1);
@@ -326,7 +326,7 @@ public:
     Body->dump(indent(out, ind) << "Body:", ind + 1);
     return out;
   }
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// VarExprAST - Expression class for var/in
@@ -339,14 +339,14 @@ public:
              ExprAST *body)
       : VarNames(varnames), Body(body) {}
 
-  virtual std::ostream &dump(std::ostream &out, int ind) {
+  std::ostream &dump(std::ostream &out, int ind) override {
     ExprAST::dump(out << "var", ind);
     for (const auto &NamedVar : VarNames)
       NamedVar.second->dump(indent(out, ind) << NamedVar.first << ':', ind + 1);
     Body->dump(indent(out, ind) << "Body:", ind + 1);
     return out;
   }
-  virtual Value *Codegen();
+  Value *Codegen() override;
 };
 
 /// PrototypeAST - This class represents the "prototype" for a function,

include/llvm/Analysis/AssumptionCache.h

@@ -165,7 +165,7 @@ public:
   AssumptionCache &getAssumptionCache(Function &F);
 
   AssumptionCacheTracker();
-  ~AssumptionCacheTracker();
+  ~AssumptionCacheTracker() override;
 
   void releaseMemory() override { AssumptionCaches.shrink_and_clear(); }
 

include/llvm/Analysis/BlockFrequencyInfo.h

@@ -34,7 +34,7 @@ public:
 
   BlockFrequencyInfo();
 
-  ~BlockFrequencyInfo();
+  ~BlockFrequencyInfo() override;
 
   void getAnalysisUsage(AnalysisUsage &AU) const override;
 

include/llvm/Analysis/CallGraph.h

@@ -318,7 +318,7 @@ public:
   static char ID; // Class identification, replacement for typeinfo
 
   CallGraphWrapperPass();
-  virtual ~CallGraphWrapperPass();
+  ~CallGraphWrapperPass() override;
 
   /// \brief The internal \c CallGraph around which the rest of this interface
   /// is wrapped.

include/llvm/Analysis/DependenceAnalysis.h

@@ -219,7 +219,7 @@ namespace llvm {
   public:
     FullDependence(Instruction *Src, Instruction *Dst, bool LoopIndependent,
                    unsigned Levels);
-    ~FullDependence() { delete[] DV; }
+    ~FullDependence() override { delete[] DV; }
 
     /// isLoopIndependent - Returns true if this is a loop-independent
     /// dependence.

include/llvm/Analysis/InlineCost.h

@@ -107,7 +107,7 @@ public:
   static char ID;
 
   InlineCostAnalysis();
-  ~InlineCostAnalysis();
+  ~InlineCostAnalysis() override;
 
   // Pass interface implementation.
   void getAnalysisUsage(AnalysisUsage &AU) const override;

include/llvm/Analysis/JumpInstrTableInfo.h

@@ -39,7 +39,7 @@ public:
   /// The default byte alignment for jump tables is 16, which is large but
   /// usually safe.
   JumpInstrTableInfo(uint64_t ByteAlign = 16);
-  virtual ~JumpInstrTableInfo();
+  ~JumpInstrTableInfo() override;
   const char *getPassName() const override {
     return "Jump-Instruction Table Info";
   }

include/llvm/Analysis/LazyValueInfo.h

@@ -39,7 +39,7 @@ public:
   LazyValueInfo() : FunctionPass(ID), PImpl(nullptr) {
     initializeLazyValueInfoPass(*PassRegistry::getPassRegistry());
   }
-  ~LazyValueInfo() { assert(!PImpl && "releaseMemory not called"); }
+  ~LazyValueInfo() override { assert(!PImpl && "releaseMemory not called"); }
 
   /// This is used to return true/false/dunno results.
   enum Tristate {

include/llvm/Analysis/LibCallAliasAnalysis.h

@@ -36,8 +36,8 @@ namespace llvm {
         : FunctionPass(ID), LCI(LC) {
       initializeLibCallAliasAnalysisPass(*PassRegistry::getPassRegistry());
     }
-    ~LibCallAliasAnalysis();
-    
+    ~LibCallAliasAnalysis() override;
+
     ModRefResult getModRefInfo(ImmutableCallSite CS,
                                const Location &Loc) override;
  

include/llvm/Analysis/MemoryDependenceAnalysis.h

@@ -329,7 +329,7 @@ namespace llvm {
 
   public:
     MemoryDependenceAnalysis();
-    ~MemoryDependenceAnalysis();
+    ~MemoryDependenceAnalysis() override;
     static char ID;
 
     /// Pass Implementation stuff.  This doesn't do any analysis eagerly.

include/llvm/Analysis/PostDominators.h

@@ -30,7 +30,7 @@ struct PostDominatorTree : public FunctionPass {
     DT = new DominatorTreeBase<BasicBlock>(true);
   }
 
-  ~PostDominatorTree();
+  ~PostDominatorTree() override;
 
   bool runOnFunction(Function &F) override;
 

include/llvm/Analysis/RegionInfo.h

@@ -842,7 +842,7 @@ class RegionInfo : public RegionInfoBase<RegionTraits<Function>> {
 public:
   explicit RegionInfo();
 
-  virtual ~RegionInfo();
+  ~RegionInfo() override;
 
   // updateStatistics - Update statistic about created regions.
   void updateStatistics(Region *R) final;
@@ -858,7 +858,7 @@ public:
   static char ID;
   explicit RegionInfoPass();
 
-  ~RegionInfoPass();
+  ~RegionInfoPass() override;
 
   RegionInfo &getRegionInfo() { return RI; }
 

include/llvm/CodeGen/AsmPrinter.h

@@ -140,7 +140,7 @@ protected:
   explicit AsmPrinter(TargetMachine &TM, std::unique_ptr<MCStreamer> Streamer);
 
 public:
-  virtual ~AsmPrinter();
+  ~AsmPrinter() override;
 
   DwarfDebug *getDwarfDebug() { return DD; }
   DwarfDebug *getDwarfDebug() const { return DD; }

include/llvm/CodeGen/LiveIntervalAnalysis.h

@@ -100,7 +100,7 @@ extern cl::opt<bool> UseSegmentSetForPhysRegs;
   public:
     static char ID; // Pass identification, replacement for typeid
     LiveIntervals();
-    virtual ~LiveIntervals();
+    ~LiveIntervals() override;
 
     // Calculate the spill weight to assign to a single instruction.
     static float getSpillWeight(bool isDef, bool isUse,

include/llvm/CodeGen/LiveRangeEdit.h

@@ -122,7 +122,7 @@ public:
     MRI.setDelegate(this);
   }
 
-  ~LiveRangeEdit() { MRI.resetDelegate(this); }
+  ~LiveRangeEdit() override { MRI.resetDelegate(this); }
 
   LiveInterval &getParent() const {
    assert(Parent && "No parent LiveInterval");

include/llvm/CodeGen/MachineBlockFrequencyInfo.h

@@ -35,7 +35,7 @@ public:
 
   MachineBlockFrequencyInfo();
 
-  ~MachineBlockFrequencyInfo();
+  ~MachineBlockFrequencyInfo() override;
 
   void getAnalysisUsage(AnalysisUsage &AU) const override;
 

include/llvm/CodeGen/MachineDominators.h

@@ -72,7 +72,7 @@ public:
 
   MachineDominatorTree();
 
-  ~MachineDominatorTree();
+  ~MachineDominatorTree() override;
 
   DominatorTreeBase<MachineBasicBlock> &getBase() {
     applySplitCriticalEdges();

include/llvm/CodeGen/MachineFunctionAnalysis.h

@@ -31,7 +31,7 @@ private:
 public:
   static char ID;
   explicit MachineFunctionAnalysis(const TargetMachine &tm);
-  ~MachineFunctionAnalysis();
+  ~MachineFunctionAnalysis() override;
 
   MachineFunction &getMF() const { return *MF; }
 

include/llvm/CodeGen/MachineModuleInfo.h

@@ -199,7 +199,7 @@ public:
   // Real constructor.
   MachineModuleInfo(const MCAsmInfo &MAI, const MCRegisterInfo &MRI,
                     const MCObjectFileInfo *MOFI);
-  ~MachineModuleInfo();
+  ~MachineModuleInfo() override;
 
   // Initialization and Finalization
   bool doInitialization(Module &) override;

include/llvm/CodeGen/MachinePassRegistry.h

@@ -124,7 +124,7 @@ class RegisterPassParser : public MachinePassRegistryListener,
 public:
   RegisterPassParser(cl::Option &O)
       : cl::parser<typename RegistryClass::FunctionPassCtor>(O) {}
-  ~RegisterPassParser() { RegistryClass::setListener(nullptr); }
+  ~RegisterPassParser() override { RegistryClass::setListener(nullptr); }
 
   void initialize() {
     cl::parser<typename RegistryClass::FunctionPassCtor>::initialize();

include/llvm/CodeGen/MachinePostDominators.h

@@ -33,7 +33,7 @@ public:
 
   MachinePostDominatorTree();
 
-  ~MachinePostDominatorTree();
+  ~MachinePostDominatorTree() override;
 
   FunctionPass *createMachinePostDominatorTreePass();
 

include/llvm/CodeGen/MachineRegionInfo.h

@@ -80,7 +80,7 @@ class MachineRegionInfo : public RegionInfoBase<RegionTraits<MachineFunction>> {
 public:
   explicit MachineRegionInfo();
 
-  virtual ~MachineRegionInfo();
+  ~MachineRegionInfo() override;
 
   // updateStatistics - Update statistic about created regions.
   void updateStatistics(MachineRegion *R) final;
@@ -98,7 +98,7 @@ public:
   static char ID;
   explicit MachineRegionInfoPass();
 
-  ~MachineRegionInfoPass();
+  ~MachineRegionInfoPass() override;
 
   MachineRegionInfo &getRegionInfo() {
     return RI;

include/llvm/CodeGen/MachineScheduler.h

@@ -385,7 +385,7 @@ public:
         ShouldTrackPressure(false), RPTracker(RegPressure),
         TopRPTracker(TopPressure), BotRPTracker(BotPressure) {}
 
-  virtual ~ScheduleDAGMILive();
+  ~ScheduleDAGMILive() override;
 
   /// Return true if this DAG supports VReg liveness and RegPressure.
   bool hasVRegLiveness() const override { return true; }
@@ -909,7 +909,7 @@ public:
   PostGenericScheduler(const MachineSchedContext *C):
     GenericSchedulerBase(C), Top(SchedBoundary::TopQID, "TopQ") {}
 
-  virtual ~PostGenericScheduler() {}
+  ~PostGenericScheduler() override {}
 
   void initPolicy(MachineBasicBlock::iterator Begin,
                   MachineBasicBlock::iterator End,

include/llvm/CodeGen/Passes.h

@@ -125,7 +125,7 @@ public:
   // Dummy constructor.
   TargetPassConfig();
 
-  virtual ~TargetPassConfig();
+  ~TargetPassConfig() override;
 
   static char ID;
 

include/llvm/CodeGen/ScheduleDAGInstrs.h

@@ -158,7 +158,7 @@ namespace llvm {
                                bool RemoveKillFlags = false,
                                LiveIntervals *LIS = nullptr);
 
-    virtual ~ScheduleDAGInstrs() {}
+    ~ScheduleDAGInstrs() override {}
 
     bool isPostRA() const { return IsPostRA; }
 

include/llvm/CodeGen/SelectionDAGISel.h

@@ -58,7 +58,7 @@ public:
 
   explicit SelectionDAGISel(TargetMachine &tm,
                             CodeGenOpt::Level OL = CodeGenOpt::Default);
-  virtual ~SelectionDAGISel();
+  ~SelectionDAGISel() override;
 
   const TargetLowering *getTargetLowering() const { return TLI; }
 

include/llvm/CodeGen/TargetLoweringObjectFileImpl.h

@@ -39,7 +39,7 @@ class TargetLoweringObjectFileELF : public TargetLoweringObjectFile {
 public:
   TargetLoweringObjectFileELF() : UseInitArray(false) {}
 
-  virtual ~TargetLoweringObjectFileELF() {}
+  ~TargetLoweringObjectFileELF() override {}
 
   void emitPersonalityValue(MCStreamer &Streamer, const TargetMachine &TM,
                             const MCSymbol *Sym) const override;
@@ -88,7 +88,7 @@ public:
 
 class TargetLoweringObjectFileMachO : public TargetLoweringObjectFile {
 public:
-  virtual ~TargetLoweringObjectFileMachO() {}
+  ~TargetLoweringObjectFileMachO() override {}
   TargetLoweringObjectFileMachO();
 
   /// Extract the dependent library name from a linker option string. Returns
@@ -136,7 +136,7 @@ public:
 
 class TargetLoweringObjectFileCOFF : public TargetLoweringObjectFile {
 public:
-  virtual ~TargetLoweringObjectFileCOFF() {}
+  ~TargetLoweringObjectFileCOFF() override {}
 
   const MCSection *
     getExplicitSectionGlobal(const GlobalValue *GV,

include/llvm/DebugInfo/PDB/ConcreteSymbolEnumerator.h

@@ -22,7 +22,7 @@ public:
   ConcreteSymbolEnumerator(std::unique_ptr<IPDBEnumSymbols> SymbolEnumerator)
       : Enumerator(std::move(SymbolEnumerator)) {}
 
-  virtual ~ConcreteSymbolEnumerator() {}
+  ~ConcreteSymbolEnumerator() override {}
 
   uint32_t getChildCount() const override {
     return Enumerator->getChildCount();

include/llvm/ExecutionEngine/RTDyldMemoryManager.h

@@ -56,7 +56,7 @@ class RTDyldMemoryManager : public MCJITMemoryManager,
   void operator=(const RTDyldMemoryManager&) = delete;
 public:
   RTDyldMemoryManager() {}
-  virtual ~RTDyldMemoryManager();
+  ~RTDyldMemoryManager() override;
 
   void registerEHFrames(uint8_t *Addr, uint64_t LoadAddr, size_t Size) override;
   void deregisterEHFrames(uint8_t *Addr, uint64_t LoadAddr, size_t Size) override;

include/llvm/ExecutionEngine/SectionMemoryManager.h

@@ -40,7 +40,7 @@ class SectionMemoryManager : public RTDyldMemoryManager {
 
 public:
   SectionMemoryManager() { }
-  virtual ~SectionMemoryManager();
+  ~SectionMemoryManager() override;
 
   /// \brief Allocates a memory block of (at least) the given size suitable for
   /// executable code.

include/llvm/IR/BasicBlock.h

@@ -105,7 +105,7 @@ public:
                             BasicBlock *InsertBefore = nullptr) {
     return new BasicBlock(Context, Name, Parent, InsertBefore);
   }
-  ~BasicBlock();
+  ~BasicBlock() override;
 
   /// \brief Return the enclosing method, or null if none.
   const Function *getParent() const { return Parent; }

include/llvm/IR/Constants.h

@@ -547,7 +547,7 @@ class ConstantDataSequential : public Constant {
 protected:
   explicit ConstantDataSequential(Type *ty, ValueTy VT, const char *Data)
     : Constant(ty, VT, nullptr, 0), DataElements(Data), Next(nullptr) {}
-  ~ConstantDataSequential() { delete Next; }
+  ~ConstantDataSequential() override { delete Next; }
 
   static Constant *getImpl(StringRef Bytes, Type *Ty);
 

include/llvm/IR/Function.h

@@ -114,7 +114,7 @@ public:
     return new(0) Function(Ty, Linkage, N, M);
   }
 
-  ~Function();
+  ~Function() override;
 
   Type *getReturnType() const;           // Return the type of the ret val
   FunctionType *getFunctionType() const; // Return the FunctionType for me

include/llvm/IR/GlobalValue.h

@@ -104,7 +104,7 @@ public:
     LocalExecTLSModel
   };
 
-  ~GlobalValue() {
+  ~GlobalValue() override {
     removeDeadConstantUsers();   // remove any dead constants using this.
   }
 

include/llvm/IR/GlobalVariable.h

@@ -66,7 +66,7 @@ public:
                  ThreadLocalMode = NotThreadLocal, unsigned AddressSpace = 0,
                  bool isExternallyInitialized = false);
 
-  ~GlobalVariable() {
+  ~GlobalVariable() override {
     NumOperands = 1; // FIXME: needed by operator delete
   }
 

include/llvm/IR/InlineAsm.h

@@ -51,7 +51,7 @@ private:
   InlineAsm(PointerType *Ty, const std::string &AsmString,
             const std::string &Constraints, bool hasSideEffects,
             bool isAlignStack, AsmDialect asmDialect);
-  virtual ~InlineAsm();
+  ~InlineAsm() override;
 
   /// When the ConstantUniqueMap merges two types and makes two InlineAsms
   /// identical, it destroys one of them with this method.

include/llvm/IR/InstrTypes.h

@@ -44,7 +44,7 @@ protected:
     : Instruction(Ty, iType, Ops, NumOps, InsertAtEnd) {}
 
   // Out of line virtual method, so the vtable, etc has a home.
-  ~TerminatorInst();
+  ~TerminatorInst() override;
 
   /// Virtual methods - Terminators should overload these and provide inline
   /// overrides of non-V methods.
@@ -102,7 +102,7 @@ public:
   }
 
   // Out of line virtual method, so the vtable, etc has a home.
-  ~UnaryInstruction();
+  ~UnaryInstruction() override;
 
   /// Transparently provide more efficient getOperand methods.
   DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);

include/llvm/IR/Instruction.h

@@ -62,7 +62,7 @@ class Instruction : public User, public ilist_node<Instruction> {
   };
 public:
   // Out of line virtual method, so the vtable, etc has a home.
-  ~Instruction();
+  ~Instruction() override;
 
   /// user_back - Specialize the methods defined in Value, as we know that an
   /// instruction can only be used by other instructions.

include/llvm/IR/Instructions.h

@@ -91,7 +91,7 @@ public:
              const Twine &Name, BasicBlock *InsertAtEnd);
 
   // Out of line virtual method, so the vtable, etc. has a home.
-  virtual ~AllocaInst();
+  ~AllocaInst() override;
 
   /// isArrayAllocation - Return true if there is an allocation size parameter
   /// to the allocation instruction that is not 1.
@@ -1335,7 +1335,7 @@ public:
   static Instruction* CreateFree(Value* Source, Instruction *InsertBefore);
   static Instruction* CreateFree(Value* Source, BasicBlock *InsertAtEnd);
 
-  ~CallInst();
+  ~CallInst() override;
 
   // Note that 'musttail' implies 'tail'.
   enum TailCallKind { TCK_None = 0, TCK_Tail = 1, TCK_MustTail = 2 };
@@ -2175,7 +2175,7 @@ public:
                          const Twine &NameStr, BasicBlock *InsertAtEnd) {
     return new PHINode(Ty, NumReservedValues, NameStr, InsertAtEnd);
   }
-  ~PHINode();
+  ~PHINode() override;
 
   /// Provide fast operand accessors
   DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
@@ -2366,7 +2366,7 @@ public:
   static LandingPadInst *Create(Type *RetTy, Value *PersonalityFn,
                                 unsigned NumReservedClauses,
                                 const Twine &NameStr, BasicBlock *InsertAtEnd);
-  ~LandingPadInst();
+  ~LandingPadInst() override;
 
   /// Provide fast operand accessors
   DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
@@ -2468,7 +2468,7 @@ public:
   static ReturnInst* Create(LLVMContext &C, BasicBlock *InsertAtEnd) {
     return new(0) ReturnInst(C, InsertAtEnd);
   }
-  virtual ~ReturnInst();
+  ~ReturnInst() override;
 
   /// Provide fast operand accessors
   DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
@@ -2765,7 +2765,7 @@ public:
     return new SwitchInst(Value, Default, NumCases, InsertAtEnd);
   }
 
-  ~SwitchInst();
+  ~SwitchInst() override;
 
   /// Provide fast operand accessors
   DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
@@ -2951,7 +2951,7 @@ public:
                                 BasicBlock *InsertAtEnd) {
     return new IndirectBrInst(Address, NumDests, InsertAtEnd);
   }
-  ~IndirectBrInst();
+  ~IndirectBrInst() override;
 
   /// Provide fast operand accessors.
   DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);

include/llvm/IR/LegacyPassManager.h

@@ -50,7 +50,7 @@ class PassManager : public PassManagerBase {
 public:
 
   PassManager();
-  ~PassManager();
+  ~PassManager() override;
 
   void add(Pass *P) override;
 
@@ -70,7 +70,7 @@ public:
   /// FunctionPassManager ctor - This initializes the pass manager.  It needs,
   /// but does not take ownership of, the specified Module.
   explicit FunctionPassManager(Module *M);
-  ~FunctionPassManager();
+  ~FunctionPassManager() override;
 
   void add(Pass *P) override;
 

include/llvm/IR/LegacyPassNameParser.h

@@ -43,7 +43,7 @@ class PassNameParser : public PassRegistrationListener,
                        public cl::parser<const PassInfo*> {
 public:
   PassNameParser(cl::Option &O);
-  virtual ~PassNameParser();
+  ~PassNameParser() override;
 
   void initialize() {
     cl::parser<const PassInfo*>::initialize();

include/llvm/IR/Metadata.h

@@ -164,7 +164,7 @@ class MetadataAsValue : public Value {
   Metadata *MD;
 
   MetadataAsValue(Type *Ty, Metadata *MD);
-  ~MetadataAsValue();
+  ~MetadataAsValue() override;
 
   /// \brief Drop use of metadata (during teardown).
   void dropUse() { MD = nullptr; }

include/llvm/IR/Operator.h

@@ -42,7 +42,7 @@ protected:
   // NOTE: Cannot use = delete because it's not legal to delete
   // an overridden method that's not deleted in the base class. Cannot leave
   // this unimplemented because that leads to an ODR-violation.
-  ~Operator();
+  ~Operator() override;
 
 public:
   /// Return the opcode for this Instruction or ConstantExpr.

include/llvm/IR/User.h

@@ -60,9 +60,7 @@ protected:
     NumOperands = 0;
   }
 public:
-  ~User() {
-    Use::zap(OperandList, OperandList + NumOperands);
-  }
+  ~User() override { Use::zap(OperandList, OperandList + NumOperands); }
   /// \brief Free memory allocated for User and Use objects.
   void operator delete(void *Usr);
   /// \brief Placement delete - required by std, but never called.

include/llvm/LineEditor/LineEditor.h

@@ -119,7 +119,7 @@ private:
   };
 
   struct ListCompleterConcept : CompleterConcept {
-    ~ListCompleterConcept();
+    ~ListCompleterConcept() override;
     CompletionAction complete(StringRef Buffer, size_t Pos) const override;
     static std::string getCommonPrefix(const std::vector<Completion> &Comps);
     virtual std::vector<Completion> getCompletions(StringRef Buffer,

include/llvm/MC/MCAsmInfoELF.h

@@ -15,8 +15,7 @@
 namespace llvm {
 class MCAsmInfoELF : public MCAsmInfo {
   virtual void anchor();
-  const MCSection *
-  getNonexecutableStackSection(MCContext &Ctx) const override final;
+  const MCSection *getNonexecutableStackSection(MCContext &Ctx) const final;
 
 protected:
   MCAsmInfoELF();

include/llvm/MC/MCAssembler.h

@@ -143,7 +143,7 @@ public:
     : MCFragment(FType, SD), BundlePadding(0)
   {
   }
-  virtual ~MCEncodedFragment();
+  ~MCEncodedFragment() override;
 
   virtual SmallVectorImpl<char> &getContents() = 0;
   virtual const SmallVectorImpl<char> &getContents() const = 0;
@@ -182,7 +182,7 @@ public:
   {
   }
 
-  virtual ~MCEncodedFragmentWithFixups();
+  ~MCEncodedFragmentWithFixups() override;
 
   typedef SmallVectorImpl<MCFixup>::const_iterator const_fixup_iterator;
   typedef SmallVectorImpl<MCFixup>::iterator fixup_iterator;

include/llvm/MC/MCELFStreamer.h

@@ -34,7 +34,7 @@ public:
       : MCObjectStreamer(Context, TAB, OS, Emitter),
         SeenIdent(false) {}
 
-  virtual ~MCELFStreamer();
+  ~MCELFStreamer() override;
 
   /// state management
   void reset() override {

include/llvm/MC/MCLinkerOptimizationHint.h

@@ -141,7 +141,7 @@ public:
 
     public:
       raw_counting_ostream() : Count(0) {}
-      ~raw_counting_ostream() { flush(); }
+      ~raw_counting_ostream() override { flush(); }
     };
 
     raw_counting_ostream OutStream;

include/llvm/MC/MCObjectStreamer.h

@@ -51,7 +51,7 @@ class MCObjectStreamer : public MCStreamer {
 protected:
   MCObjectStreamer(MCContext &Context, MCAsmBackend &TAB, raw_ostream &OS,
                    MCCodeEmitter *Emitter);
-  ~MCObjectStreamer();
+  ~MCObjectStreamer() override;
 
 public:
   /// state management

include/llvm/MC/MCParser/AsmLexer.h

@@ -40,7 +40,7 @@ protected:
 
 public:
   AsmLexer(const MCAsmInfo &MAI);
-  ~AsmLexer();
+  ~AsmLexer() override;
 
   void setBuffer(StringRef Buf, const char *ptr = nullptr);
 

include/llvm/MC/MCSectionCOFF.h

@@ -53,7 +53,7 @@ class MCSymbol;
       assert ((Characteristics & 0x00F00000) == 0 &&
         "alignment must not be set upon section creation");
     }
-    ~MCSectionCOFF();
+    ~MCSectionCOFF() override;
 
   public:
     /// ShouldOmitSectionDirective - Decides whether a '.section' directive

include/llvm/MC/MCSectionELF.h

@@ -59,7 +59,7 @@ private:
       : MCSection(SV_ELF, K, Begin), SectionName(Section), Type(type),
         Flags(flags), UniqueID(UniqueID), EntrySize(entrySize), Group(group),
         Associated(Associated) {}
-  ~MCSectionELF();
+  ~MCSectionELF() override;
 
   void setSectionName(StringRef Name) { SectionName = Name; }
 

include/llvm/MC/MCStreamer.h

@@ -90,7 +90,7 @@ public:
 class AArch64TargetStreamer : public MCTargetStreamer {
 public:
   AArch64TargetStreamer(MCStreamer &S);
-  ~AArch64TargetStreamer();
+  ~AArch64TargetStreamer() override;
 
   void finish() override;
 
@@ -115,7 +115,7 @@ private:
 class ARMTargetStreamer : public MCTargetStreamer {
 public:
   ARMTargetStreamer(MCStreamer &S);
-  ~ARMTargetStreamer();
+  ~ARMTargetStreamer() override;
 
   virtual void emitFnStart();
   virtual void emitFnEnd();

include/llvm/MC/MCTargetAsmParser.h

@@ -110,7 +110,7 @@ protected: // Can only create subclasses.
   MCTargetOptions MCOptions;
 
 public:
-  virtual ~MCTargetAsmParser();
+  ~MCTargetAsmParser() override;
 
   uint64_t getAvailableFeatures() const { return AvailableFeatures; }
   void setAvailableFeatures(uint64_t Value) { AvailableFeatures = Value; }

include/llvm/Object/IRObjectFile.h

@@ -31,7 +31,7 @@ class IRObjectFile : public SymbolicFile {
 
 public:
   IRObjectFile(MemoryBufferRef Object, std::unique_ptr<Module> M);
-  ~IRObjectFile();
+  ~IRObjectFile() override;
   void moveSymbolNext(DataRefImpl &Symb) const override;
   std::error_code printSymbolName(raw_ostream &OS,
                                   DataRefImpl Symb) const override;

include/llvm/Object/SymbolicFile.h

@@ -118,7 +118,7 @@ const uint64_t UnknownAddressOrSize = ~0ULL;
 
 class SymbolicFile : public Binary {
 public:
-  virtual ~SymbolicFile();
+  ~SymbolicFile() override;
   SymbolicFile(unsigned int Type, MemoryBufferRef Source);
 
   // virtual interface.

include/llvm/Option/ArgList.h

@@ -320,7 +320,7 @@ private:
 
 public:
   InputArgList(const char* const *ArgBegin, const char* const *ArgEnd);
-  ~InputArgList();
+  ~InputArgList() override;
 
   const char *getArgString(unsigned Index) const override {
     return ArgStrings[Index];
@@ -355,7 +355,7 @@ class DerivedArgList : public ArgList {
 public:
   /// Construct a new derived arg list from \p BaseArgs.
   DerivedArgList(const InputArgList &BaseArgs);
-  ~DerivedArgList();
+  ~DerivedArgList() override;
 
   const char *getArgString(unsigned Index) const override {
     return BaseArgs.getArgString(Index);

include/llvm/Pass.h

@@ -250,7 +250,7 @@ public:
 
   explicit ModulePass(char &pid) : Pass(PT_Module, pid) {}
   // Force out-of-line virtual method.
-  virtual ~ModulePass();
+  ~ModulePass() override;
 };
 
 
@@ -279,7 +279,7 @@ public:
   : ModulePass(pid) {}
 
   // Force out-of-line virtual method.
-  virtual ~ImmutablePass();
+  ~ImmutablePass() override;
 };
 
 //===----------------------------------------------------------------------===//

include/llvm/Support/FormattedStream.h

@@ -94,7 +94,7 @@ public:
     Scanned = nullptr;
   }
 
-  ~formatted_raw_ostream() {
+  ~formatted_raw_ostream() override {
     flush();
     releaseStream();
   }

include/llvm/Support/YAMLTraits.h

@@ -888,7 +888,7 @@ public:
         void *Ctxt = nullptr,
         SourceMgr::DiagHandlerTy DiagHandler = nullptr,
         void *DiagHandlerCtxt = nullptr);
-  ~Input();
+  ~Input() override;
 
   // Check if there was an syntax or semantic error during parsing.
   std::error_code error();
@@ -955,7 +955,7 @@ private:
   };
 
   class MapHNode : public HNode {
-    virtual void anchor();
+    void anchor() override;
 
   public:
     MapHNode(Node *n) : HNode(n) { }
@@ -974,7 +974,7 @@ private:
   };
 
   class SequenceHNode : public HNode {
-    virtual void anchor();
+    void anchor() override;
 
   public:
     SequenceHNode(Node *n) : HNode(n) { }
@@ -1020,7 +1020,7 @@ private:
 class Output : public IO {
 public:
   Output(llvm::raw_ostream &, void *Ctxt=nullptr);
-  virtual ~Output();
+  ~Output() override;
 
   bool outputting() override;
   bool mapTag(StringRef, bool) override;

include/llvm/Support/circular_raw_ostream.h

@@ -117,7 +117,7 @@ namespace llvm
       setStream(Stream, Owns);
     }
 
-    ~circular_raw_ostream() {
+    ~circular_raw_ostream() override {
       flush();
       flushBufferWithBanner();
       releaseStream();

include/llvm/Support/raw_os_ostream.h

@@ -34,7 +34,7 @@ class raw_os_ostream : public raw_ostream {
 
 public:
   raw_os_ostream(std::ostream &O) : OS(O) {}
-  ~raw_os_ostream();
+  ~raw_os_ostream() override;
 };
 
 } // end llvm namespace

include/llvm/Support/raw_ostream.h

@@ -366,7 +366,7 @@ public:
   /// this closes the file when the stream is destroyed.
   raw_fd_ostream(int fd, bool shouldClose, bool unbuffered=false);
 
-  ~raw_fd_ostream();
+  ~raw_fd_ostream() override;
 
   /// Manually flush the stream and close the file. Note that this does not call
   /// fsync.
@@ -448,7 +448,7 @@ class raw_string_ostream : public raw_ostream {
   uint64_t current_pos() const override { return OS.size(); }
 public:
   explicit raw_string_ostream(std::string &O) : OS(O) {}
-  ~raw_string_ostream();
+  ~raw_string_ostream() override;
 
   /// Flushes the stream contents to the target string and returns  the string's
   /// reference.
@@ -475,7 +475,7 @@ public:
   /// \param O The vector to write to; this should generally have at least 128
   /// bytes free to avoid any extraneous memory overhead.
   explicit raw_svector_ostream(SmallVectorImpl<char> &O);
-  ~raw_svector_ostream();
+  ~raw_svector_ostream() override;
 
   /// This is called when the SmallVector we're appending to is changed outside
   /// of the raw_svector_ostream's control.  It is only safe to do this if the
@@ -498,7 +498,7 @@ class raw_null_ostream : public raw_ostream {
 
 public:
   explicit raw_null_ostream() {}
-  ~raw_null_ostream();
+  ~raw_null_ostream() override;
 };
 
 } // end llvm namespace

lib/Analysis/AliasAnalysisCounter.cpp

@@ -44,7 +44,7 @@ namespace {
       errs() <<  "  " << Val << " " << Desc << " responses ("
              << Val*100/Sum << "%)\n";
     }
-    ~AliasAnalysisCounter() {
+    ~AliasAnalysisCounter() override {
       unsigned AASum = No+May+Partial+Must;
       unsigned MRSum = NoMR+JustRef+JustMod+MR;
       if (AASum + MRSum) { // Print a report if any counted queries occurred...

lib/Analysis/CFLAliasAnalysis.cpp

@@ -161,7 +161,7 @@ struct FunctionHandle : public CallbackVH {
     assert(CFLAA != nullptr);
   }
 
-  virtual ~FunctionHandle() {}
+  ~FunctionHandle() override {}
 
   void deleted() override { removeSelfFromCache(); }
   void allUsesReplacedWith(Value *) override { removeSelfFromCache(); }
@@ -189,7 +189,7 @@ public:
     initializeCFLAliasAnalysisPass(*PassRegistry::getPassRegistry());
   }
 
-  virtual ~CFLAliasAnalysis() {}
+  ~CFLAliasAnalysis() override {}
 
   void getAnalysisUsage(AnalysisUsage &AU) const override {
     AliasAnalysis::getAnalysisUsage(AU);

lib/Bitcode/Reader/BitcodeReader.cpp

@@ -230,7 +230,7 @@ public:
                          DiagnosticHandlerFunction DiagnosticHandler);
   explicit BitcodeReader(DataStreamer *streamer, LLVMContext &C,
                          DiagnosticHandlerFunction DiagnosticHandler);
-  ~BitcodeReader() { FreeState(); }
+  ~BitcodeReader() override { FreeState(); }
 
   std::error_code materializeForwardReferencedFunctions();
 

lib/CodeGen/AggressiveAntiDepBreaker.h

@@ -127,7 +127,7 @@ class RegisterClassInfo;
     AggressiveAntiDepBreaker(MachineFunction& MFi,
                           const RegisterClassInfo &RCI,
                           TargetSubtargetInfo::RegClassVector& CriticalPathRCs);
-    ~AggressiveAntiDepBreaker();
+    ~AggressiveAntiDepBreaker() override;
 
     /// Initialize anti-dep breaking for a new basic block.
     void StartBlock(MachineBasicBlock *BB) override;

lib/CodeGen/AsmPrinter/DwarfException.h

@@ -48,7 +48,7 @@ public:
   // Main entry points.
   //
   DwarfCFIException(AsmPrinter *A);
-  virtual ~DwarfCFIException();
+  ~DwarfCFIException() override;
 
   /// Emit all exception information that should come after the content.
   void endModule() override;
@@ -70,7 +70,7 @@ public:
   // Main entry points.
   //
   ARMException(AsmPrinter *A);
-  virtual ~ARMException();
+  ~ARMException() override;
 
   /// Emit all exception information that should come after the content.
   void endModule() override;

lib/CodeGen/AsmPrinter/EHStreamer.h

@@ -125,7 +125,7 @@ protected:
 
 public:
   EHStreamer(AsmPrinter *A);
-  virtual ~EHStreamer();
+  ~EHStreamer() override;
 
   // Unused.
   void setSymbolSize(const MCSymbol *Sym, uint64_t Size) override {}

lib/CodeGen/AsmPrinter/Win64Exception.h

@@ -43,7 +43,7 @@ public:
   // Main entry points.
   //
   Win64Exception(AsmPrinter *A);
-  virtual ~Win64Exception();
+  ~Win64Exception() override;
 
   /// Emit all exception information that should come after the content.
   void endModule() override;

lib/CodeGen/AsmPrinter/WinCodeViewLineTables.h

@@ -114,7 +114,7 @@ class WinCodeViewLineTables : public AsmPrinterHandler {
 public:
   WinCodeViewLineTables(AsmPrinter *Asm);
 
-  ~WinCodeViewLineTables() {
+  ~WinCodeViewLineTables() override {
     for (DirAndFilenameToFilepathMapTy::iterator
              I = DirAndFilenameToFilepathMap.begin(),
              E = DirAndFilenameToFilepathMap.end();

lib/CodeGen/CodeGenPrepare.cpp

@@ -1902,7 +1902,7 @@ class TypePromotionTransaction {
       Inst->removeFromParent();
     }
 
-    ~InstructionRemover() { delete Replacer; }
+    ~InstructionRemover() override { delete Replacer; }
 
     /// \brief Really remove the instruction.
     void commit() override { delete Inst; }

lib/CodeGen/CriticalAntiDepBreaker.h

@@ -69,7 +69,7 @@ class TargetRegisterInfo;
 
   public:
     CriticalAntiDepBreaker(MachineFunction& MFi, const RegisterClassInfo&);
-    ~CriticalAntiDepBreaker();
+    ~CriticalAntiDepBreaker() override;
 
     /// Initialize anti-dep breaking for a new basic block.
     void StartBlock(MachineBasicBlock *BB) override;

lib/CodeGen/InlineSpiller.cpp

@@ -135,7 +135,7 @@ private:
   // Dead defs generated during spilling.
   SmallVector<MachineInstr*, 8> DeadDefs;
 
-  ~InlineSpiller() {}
+  ~InlineSpiller() override {}
 
 public:
   InlineSpiller(MachineFunctionPass &pass, MachineFunction &mf, VirtRegMap &vrm)

lib/CodeGen/LiveDebugVariables.h

@@ -38,7 +38,7 @@ public:
   static char ID; // Pass identification, replacement for typeid
 
   LiveDebugVariables();
-  ~LiveDebugVariables();
+  ~LiveDebugVariables() override;
 
   /// renameRegister - Move any user variables in OldReg to NewReg:SubIdx.
   /// @param OldReg Old virtual register that is going away.

lib/CodeGen/PostRASchedulerList.cpp

@@ -141,7 +141,7 @@ namespace {
         TargetSubtargetInfo::AntiDepBreakMode AntiDepMode,
         SmallVectorImpl<const TargetRegisterClass *> &CriticalPathRCs);
 
-    ~SchedulePostRATDList();
+    ~SchedulePostRATDList() override;
 
     /// startBlock - Initialize register live-range state for scheduling in
     /// this block.

lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp

@@ -173,7 +173,7 @@ public:
       HazardRec = STI.getInstrInfo()->CreateTargetHazardRecognizer(&STI, this);
   }
 
-  ~ScheduleDAGRRList() {
+  ~ScheduleDAGRRList() override {
     delete HazardRec;
     delete AvailableQueue;
   }

lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.h

@@ -44,7 +44,7 @@ namespace llvm {
 
     explicit ScheduleDAGSDNodes(MachineFunction &mf);
 
-    virtual ~ScheduleDAGSDNodes() {}
+    ~ScheduleDAGSDNodes() override {}
 
     /// Run - perform scheduling.
     ///

lib/CodeGen/SelectionDAG/ScheduleDAGVLIW.cpp

@@ -76,7 +76,7 @@ public:
     HazardRec = STI.getInstrInfo()->CreateTargetHazardRecognizer(&STI, this);
   }
 
-  ~ScheduleDAGVLIW() {
+  ~ScheduleDAGVLIW() override {
     delete HazardRec;
     delete AvailableQueue;
   }

lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp

@@ -2560,7 +2560,7 @@ public:
     SelectionDAG::DAGUpdateListener(DAG),
     RecordedNodes(RN), MatchScopes(MS) { }
 
-  void NodeDeleted(SDNode *N, SDNode *E) {
+  void NodeDeleted(SDNode *N, SDNode *E) override {
     // Some early-returns here to avoid the search if we deleted the node or
     // if the update comes from MorphNodeTo (MorphNodeTo is the last thing we
     // do, so it's unnecessary to update matching state at that point).

lib/CodeGen/SpillPlacement.h

@@ -70,7 +70,7 @@ public:
   static char ID; // Pass identification, replacement for typeid.
 
   SpillPlacement() : MachineFunctionPass(ID), nodes(nullptr) {}
-  ~SpillPlacement() { releaseMemory(); }
+  ~SpillPlacement() override { releaseMemory(); }
 
   /// BorderConstraint - A basic block has separate constraints for entry and
   /// exit.

lib/CodeGen/WinEHPrepare.cpp

@@ -136,9 +136,9 @@ class WinEHFrameVariableMaterializer : public ValueMaterializer {
 public:
   WinEHFrameVariableMaterializer(Function *OutlinedFn,
                                  FrameVarInfoMap &FrameVarInfo);
-  ~WinEHFrameVariableMaterializer() {}
+  ~WinEHFrameVariableMaterializer() override {}
 
-  virtual Value *materializeValueFor(Value *V) override;
+  Value *materializeValueFor(Value *V) override;
 
   void escapeCatchObject(Value *V);
 

lib/DebugInfo/DWARF/DWARFDebugFrame.cpp

@@ -197,8 +197,7 @@ public:
         DataAlignmentFactor(DataAlignmentFactor),
         ReturnAddressRegister(ReturnAddressRegister) {}
 
-  ~CIE() {
-  }
+  ~CIE() override {}
 
   uint64_t getCodeAlignmentFactor() const { return CodeAlignmentFactor; }
   int64_t getDataAlignmentFactor() const { return DataAlignmentFactor; }
@@ -245,8 +244,7 @@ public:
         InitialLocation(InitialLocation), AddressRange(AddressRange),
         LinkedCIE(Cie) {}
 
-  ~FDE() {
-  }
+  ~FDE() override {}
 
   CIE *getLinkedCIE() const { return LinkedCIE; }
 

lib/DebugInfo/PDB/PDBSymbolFunc.cpp

@@ -48,9 +48,10 @@ public:
     reset();
   }
 
-  uint32_t getChildCount() const { return Args.size(); }
+  uint32_t getChildCount() const override { return Args.size(); }
 
-  std::unique_ptr<PDBSymbolData> getChildAtIndex(uint32_t Index) const {
+  std::unique_ptr<PDBSymbolData>
+  getChildAtIndex(uint32_t Index) const override {
     if (Index >= Args.size())
       return nullptr;
 
@@ -58,7 +59,7 @@ public:
         Args[Index]->getSymIndexId());
   }
 
-  std::unique_ptr<PDBSymbolData> getNext() {
+  std::unique_ptr<PDBSymbolData> getNext() override {
     if (CurIter == Args.end())
       return nullptr;
     const auto &Result = **CurIter;
@@ -66,9 +67,9 @@ public:
     return Session.getConcreteSymbolById<PDBSymbolData>(Result.getSymIndexId());
   }
 
-  void reset() { CurIter = Args.empty() ? Args.end() : Args.begin(); }
+  void reset() override { CurIter = Args.empty() ? Args.end() : Args.begin(); }
 
-  FunctionArgEnumerator *clone() const {
+  FunctionArgEnumerator *clone() const override {
     return new FunctionArgEnumerator(Session, Func);
   }
 

lib/DebugInfo/PDB/PDBSymbolTypeFunctionSig.cpp

@@ -34,25 +34,27 @@ public:
                         std::unique_ptr<ArgEnumeratorType> ArgEnumerator)
       : Session(PDBSession), Enumerator(std::move(ArgEnumerator)) {}
 
-  uint32_t getChildCount() const { return Enumerator->getChildCount(); }
+  uint32_t getChildCount() const override {
+    return Enumerator->getChildCount();
+  }
 
-  std::unique_ptr<PDBSymbol> getChildAtIndex(uint32_t Index) const {
+  std::unique_ptr<PDBSymbol> getChildAtIndex(uint32_t Index) const override {
     auto FunctionArgSymbol = Enumerator->getChildAtIndex(Index);
     if (!FunctionArgSymbol)
       return nullptr;
     return Session.getSymbolById(FunctionArgSymbol->getTypeId());
   }
 
-  std::unique_ptr<PDBSymbol> getNext() {
+  std::unique_ptr<PDBSymbol> getNext() override {
     auto FunctionArgSymbol = Enumerator->getNext();
     if (!FunctionArgSymbol)
       return nullptr;
     return Session.getSymbolById(FunctionArgSymbol->getTypeId());
   }
 
-  void reset() { Enumerator->reset(); }
+  void reset() override { Enumerator->reset(); }
 
-  MyType *clone() const {
+  MyType *clone() const override {
     std::unique_ptr<ArgEnumeratorType> Clone(Enumerator->clone());
     return new FunctionArgEnumerator(Session, std::move(Clone));
   }

lib/ExecutionEngine/ExecutionEngineBindings.cpp

@@ -351,7 +351,7 @@ class SimpleBindingMemoryManager : public RTDyldMemoryManager {
 public:
   SimpleBindingMemoryManager(const SimpleBindingMMFunctions& Functions,
                              void *Opaque);
-  virtual ~SimpleBindingMemoryManager();
+  ~SimpleBindingMemoryManager() override;
 
   uint8_t *allocateCodeSection(uintptr_t Size, unsigned Alignment,
                                unsigned SectionID,

lib/ExecutionEngine/GDBRegistrationListener.cpp

@@ -103,7 +103,7 @@ public:
 
   /// Unregisters each object that was previously registered and releases all
   /// internal resources.
-  virtual ~GDBJITRegistrationListener();
+  ~GDBJITRegistrationListener() override;
 
   /// Creates an entry in the JIT registry for the buffer @p Object,
   /// which must contain an object file in executable memory with any

lib/ExecutionEngine/Interpreter/Interpreter.h

@@ -108,7 +108,7 @@ class Interpreter : public ExecutionEngine, public InstVisitor<Interpreter> {
 
 public:
   explicit Interpreter(std::unique_ptr<Module> M);
-  ~Interpreter();
+  ~Interpreter() override;
 
   /// runAtExitHandlers - Run any functions registered by the program's calls to
   /// atexit(3), which we intercept and store in AtExitHandlers.

lib/ExecutionEngine/MCJIT/MCJIT.h

@@ -205,7 +205,7 @@ class MCJIT : public ExecutionEngine {
                                                       ModulePtrSet::iterator E);
 
 public:
-  ~MCJIT();
+  ~MCJIT() override;
 
   /// @name ExecutionEngine interface implementation
   /// @{

lib/ExecutionEngine/Orc/OrcMCJITReplacement.h

@@ -107,11 +107,12 @@ class OrcMCJITReplacement : public ExecutionEngine {
   public:
     LinkingResolver(OrcMCJITReplacement &M) : M(M) {}
 
-    RuntimeDyld::SymbolInfo findSymbol(const std::string &Name) {
+    RuntimeDyld::SymbolInfo findSymbol(const std::string &Name) override {
       return M.findMangledSymbol(Name);
     }
 
-    RuntimeDyld::SymbolInfo findSymbolInLogicalDylib(const std::string &Name) {
+    RuntimeDyld::SymbolInfo
+    findSymbolInLogicalDylib(const std::string &Name) override {
       return M.ClientResolver->findSymbolInLogicalDylib(Name);
     }
 

lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h

@@ -100,7 +100,7 @@ class RuntimeDyldELF : public RuntimeDyldImpl {
 public:
   RuntimeDyldELF(RuntimeDyld::MemoryManager &MemMgr,
                  RuntimeDyld::SymbolResolver &Resolver);
-  virtual ~RuntimeDyldELF();
+  ~RuntimeDyldELF() override;
 
   std::unique_ptr<RuntimeDyld::LoadedObjectInfo>
   loadObject(const object::ObjectFile &O) override;

lib/IR/LegacyPassManager.cpp

@@ -293,7 +293,7 @@ public:
     Pass(PT_PassManager, ID), PMDataManager() { }
 
   // Delete on the fly managers.
-  virtual ~MPPassManager() {
+  ~MPPassManager() override {
     for (std::map<Pass *, FunctionPassManagerImpl *>::iterator
            I = OnTheFlyManagers.begin(), E = OnTheFlyManagers.end();
          I != E; ++I) {

lib/MC/ELFObjectWriter.cpp

@@ -198,7 +198,7 @@ class ELFObjectWriter : public MCObjectWriter {
       MCObjectWriter::reset();
     }
 
-    virtual ~ELFObjectWriter();
+    ~ELFObjectWriter() override;
 
     void WriteWord(uint64_t W) {
       if (is64Bit())