[llvm] Use "= default" (NFC)

llvm/examples/Kaleidoscope/Chapter9/toy.cpp

@@ -203,7 +203,7 @@ class ExprAST {
 
 public:
   ExprAST(SourceLocation Loc = CurLoc) : Loc(Loc) {}
-  virtual ~ExprAST() {}
+  virtual ~ExprAST() = default;
   virtual Value *codegen() = 0;
   int getLine() const { return Loc.Line; }
   int getCol() const { return Loc.Col; }

llvm/examples/OptSubcommand/llvm-hello-sub.cpp

@@ -46,7 +46,7 @@ class HelloSubOptTable : public GenericOptTable {
   HelloSubOptTable()
       : GenericOptTable(OptionStrTable, OptionPrefixesTable, InfoTable,
                         /*IgnoreCase=*/false, OptionSubCommands,
-                        OptionSubCommandIDsTable) {}
+                        OptionSubCommandIDsTable) = default;
 };
 } // namespace
 

llvm/include/llvm/Analysis/DDG.h

@@ -60,11 +60,7 @@ class LLVM_ABI DDGNode : public DDGNodeBase {
   DDGNode(DDGNode &&N) : DDGNodeBase(std::move(N)), Kind(N.Kind) {}
   virtual ~DDGNode() = 0;
 
-  DDGNode &operator=(const DDGNode &N) {
-    DGNode::operator=(N);
-    Kind = N.Kind;
-    return *this;
-  }
+  DDGNode &operator=(const DDGNode &N) = default;
 
   DDGNode &operator=(DDGNode &&N) {
     DGNode::operator=(std::move(N));

llvm/include/llvm/Demangle/Utility.h

@@ -81,7 +81,7 @@ class OutputBuffer {
   OutputBuffer(const OutputBuffer &) = delete;
   OutputBuffer &operator=(const OutputBuffer &) = delete;
 
-  virtual ~OutputBuffer() {}
+  virtual ~OutputBuffer() = default;
 
   operator std::string_view() const {
     return std::string_view(Buffer, CurrentPosition);

llvm/include/llvm/ExecutionEngine/JITLink/aarch32.h

@@ -175,7 +175,7 @@ struct HalfWords {
 /// FixupInfo base class is required for dynamic lookups.
 struct FixupInfoBase {
   LLVM_ABI static const FixupInfoBase *getDynFixupInfo(Edge::Kind K);
-  virtual ~FixupInfoBase() {}
+  virtual ~FixupInfoBase() = default;
 };
 
 /// FixupInfo checks for Arm edge kinds work on 32-bit words

llvm/include/llvm/ExecutionEngine/Orc/MachOBuilder.h

@@ -36,7 +36,7 @@ size_t writeMachOStruct(MutableArrayRef<char> Buf, size_t Offset, MachOStruct S,
 
 /// Base type for MachOBuilder load command wrappers.
 struct MachOBuilderLoadCommandBase {
-  virtual ~MachOBuilderLoadCommandBase() {}
+  virtual ~MachOBuilderLoadCommandBase() = default;
   virtual size_t size() const = 0;
   virtual size_t write(MutableArrayRef<char> Buf, size_t Offset,
                        bool SwapStruct) = 0;

llvm/include/llvm/ExecutionEngine/Orc/TargetProcess/ExecutorSharedMemoryMapperService.h

@@ -29,7 +29,7 @@ namespace rt_bootstrap {
 class LLVM_ABI ExecutorSharedMemoryMapperService final
     : public ExecutorBootstrapService {
 public:
-  ~ExecutorSharedMemoryMapperService() override {};
+  ~ExecutorSharedMemoryMapperService() override = default;
 
   Expected<std::pair<ExecutorAddr, std::string>> reserve(uint64_t Size);
   Expected<ExecutorAddr> initialize(ExecutorAddr Reservation,

llvm/include/llvm/Frontend/OpenMP/OMPIRBuilder.h

@@ -2383,7 +2383,7 @@ class OpenMPIRBuilder {
     /// runtime library for debugging
     Value *MapNamesArray = nullptr;
 
-    explicit TargetDataRTArgs() {}
+    explicit TargetDataRTArgs() = default;
     explicit TargetDataRTArgs(Value *BasePointersArray, Value *PointersArray,
                               Value *SizesArray, Value *MapTypesArray,
                               Value *MapTypesArrayEnd, Value *MappersArray,
@@ -2451,7 +2451,7 @@ class OpenMPIRBuilder {
     bool HasNoWait = false;
 
     // Constructors for TargetKernelArgs.
-    TargetKernelArgs() {}
+    TargetKernelArgs() = default;
     TargetKernelArgs(unsigned NumTargetItems, TargetDataRTArgs RTArgs,
                      Value *NumIterations, ArrayRef<Value *> NumTeams,
                      ArrayRef<Value *> NumThreads, Value *DynCGGroupMem,
@@ -2494,7 +2494,7 @@ class OpenMPIRBuilder {
     /// Whether the `target ... data` directive has a `nowait` clause.
     bool HasNoWait = false;
 
-    explicit TargetDataInfo() {}
+    explicit TargetDataInfo() = default;
     explicit TargetDataInfo(bool RequiresDevicePointerInfo,
                             bool SeparateBeginEndCalls)
         : RequiresDevicePointerInfo(RequiresDevicePointerInfo),

llvm/include/llvm/IR/DebugProgramInstruction.h

@@ -589,7 +589,7 @@ filterDbgVars(iterator_range<simple_ilist<DbgRecord>::iterator> R) {
 /// date.
 class DbgMarker {
 public:
-  DbgMarker() {}
+  DbgMarker() = default;
   /// Link back to the Instruction that owns this marker. Can be null during
   /// operations that move a marker from one instruction to another.
   Instruction *MarkedInstr = nullptr;

llvm/include/llvm/IR/DroppedVariableStats.h

@@ -42,7 +42,7 @@ class DroppedVariableStats {
 public:
   LLVM_ABI DroppedVariableStats(bool DroppedVarStatsEnabled);
 
-  virtual ~DroppedVariableStats() {}
+  virtual ~DroppedVariableStats() = default;
 
   // We intend this to be unique per-compilation, thus no copies.
   DroppedVariableStats(const DroppedVariableStats &) = delete;

llvm/include/llvm/IR/TrackingMDRef.h

@@ -111,17 +111,14 @@ template <class T> class TypedTrackingMDRef {
   explicit TypedTrackingMDRef(T *MD) : Ref(static_cast<Metadata *>(MD)) {}
 
   TypedTrackingMDRef(TypedTrackingMDRef &&X) : Ref(std::move(X.Ref)) {}
-  TypedTrackingMDRef(const TypedTrackingMDRef &X) : Ref(X.Ref) {}
+  TypedTrackingMDRef(const TypedTrackingMDRef &X) = default;
 
   TypedTrackingMDRef &operator=(TypedTrackingMDRef &&X) {
     Ref = std::move(X.Ref);
     return *this;
   }
 
-  TypedTrackingMDRef &operator=(const TypedTrackingMDRef &X) {
-    Ref = X.Ref;
-    return *this;
-  }
+  TypedTrackingMDRef &operator=(const TypedTrackingMDRef &X) = default;
 
   T *get() const { return (T *)Ref.get(); }
   operator T *() const { return get(); }

llvm/include/llvm/MC/MCRegisterInfo.h

@@ -272,7 +272,7 @@ class LLVM_ABI MCRegisterInfo {
   friend class MCRegUnitRootIterator;
   friend class MCRegAliasIterator;
 
-  virtual ~MCRegisterInfo() {}
+  virtual ~MCRegisterInfo() = default;
 
   /// Initialize MCRegisterInfo, called by TableGen
   /// auto-generated routines. *DO NOT USE*.

llvm/include/llvm/MCA/SourceMgr.h

@@ -50,7 +50,7 @@ struct SourceMgr {
   /// Advance to the next \a SourceRef.
   virtual void updateNext() = 0;
 
-  virtual ~SourceMgr() {}
+  virtual ~SourceMgr() = default;
 };
 
 /// The default implementation of \a SourceMgr. It always takes a fixed number

llvm/include/llvm/ObjCopy/ConfigManager.h

@@ -23,7 +23,7 @@ namespace llvm {
 namespace objcopy {
 
 struct LLVM_ABI ConfigManager : public MultiFormatConfig {
-  ~ConfigManager() override {}
+  ~ConfigManager() override = default;
 
   const CommonConfig &getCommonConfig() const override { return Common; }
 

llvm/include/llvm/ObjCopy/MultiFormatConfig.h

@@ -24,7 +24,7 @@ struct DXContainerConfig;
 
 class MultiFormatConfig {
 public:
-  virtual ~MultiFormatConfig() {}
+  virtual ~MultiFormatConfig() = default;
 
   virtual const CommonConfig &getCommonConfig() const = 0;
   virtual Expected<const ELFConfig &> getELFConfig() const = 0;

llvm/include/llvm/ObjectYAML/DXContainerYAML.h

@@ -115,15 +115,15 @@ struct RootParameterHeaderYaml {
   dxbc::ShaderVisibility Visibility;
   uint32_t Offset;
 
-  RootParameterHeaderYaml(){};
+  RootParameterHeaderYaml() = default;
   RootParameterHeaderYaml(dxbc::RootParameterType T) : Type(T) {}
 };
 
 struct RootParameterLocationYaml {
   RootParameterHeaderYaml Header;
   std::optional<size_t> IndexInSignature;
 
-  RootParameterLocationYaml(){};
+  RootParameterLocationYaml() = default;
   explicit RootParameterLocationYaml(RootParameterHeaderYaml Header)
       : Header(Header) {}
 };

llvm/include/llvm/ProfileData/DataAccessProf.h

@@ -42,7 +42,7 @@ struct SourceLocation {
       : FileName(FileNameRef.str()), Line(Line) {}
 
   // Empty constructor is used in yaml conversion.
-  SourceLocation() {}
+  SourceLocation() = default;
   /// The filename where the data is located.
   std::string FileName;
   /// The line number in the source code.

llvm/include/llvm/SandboxIR/Pass.h

@@ -56,7 +56,7 @@ class Pass {
            "A pass name should not contain whitespaces!");
     assert(!Name.starts_with('-') && "A pass name should not start with '-'!");
   }
-  virtual ~Pass() {}
+  virtual ~Pass() = default;
   /// \Returns the name of the pass.
   StringRef getName() const { return Name; }
 #ifndef NDEBUG

llvm/lib/DWARFLinker/Parallel/DWARFLinkerUnit.h

@@ -28,7 +28,7 @@ using MacroOffset2UnitMapTy = DenseMap<uint64_t, DwarfUnit *>;
 /// Base class for all Dwarf units(Compile unit/Type table unit).
 class DwarfUnit : public OutputSections {
 public:
-  virtual ~DwarfUnit() {}
+  virtual ~DwarfUnit() = default;
   DwarfUnit(LinkingGlobalData &GlobalData, unsigned ID,
             StringRef ClangModuleName)
       : OutputSections(GlobalData), ID(ID), ClangModuleName(ClangModuleName),

llvm/lib/DWARFLinker/Parallel/StringEntryToDwarfStringPoolEntryMap.h

@@ -22,7 +22,7 @@ class StringEntryToDwarfStringPoolEntryMap {
 public:
   StringEntryToDwarfStringPoolEntryMap(LinkingGlobalData &GlobalData)
       : GlobalData(GlobalData) {}
-  ~StringEntryToDwarfStringPoolEntryMap() {}
+  ~StringEntryToDwarfStringPoolEntryMap() = default;
 
   /// Create DwarfStringPoolEntry for specified StringEntry if necessary.
   /// Initialize DwarfStringPoolEntry with initial values.

llvm/lib/ExecutionEngine/Orc/MemoryMapper.cpp

@@ -27,7 +27,7 @@
 namespace llvm {
 namespace orc {
 
-MemoryMapper::~MemoryMapper() {}
+MemoryMapper::~MemoryMapper() = default;
 
 InProcessMemoryMapper::InProcessMemoryMapper(size_t PageSize)
     : PageSize(PageSize) {}

llvm/lib/MC/GOFFObjectWriter.cpp

@@ -520,7 +520,7 @@ GOFFObjectWriter::GOFFObjectWriter(
     std::unique_ptr<MCGOFFObjectTargetWriter> MOTW, raw_pwrite_stream &OS)
     : TargetObjectWriter(std::move(MOTW)), OS(OS) {}
 
-GOFFObjectWriter::~GOFFObjectWriter() {}
+GOFFObjectWriter::~GOFFObjectWriter() = default;
 
 uint64_t GOFFObjectWriter::writeObject() {
   uint64_t Size = GOFFWriter(OS, *Asm).writeObject();

llvm/lib/MC/MCDXContainerWriter.cpp

@@ -16,7 +16,7 @@
 
 using namespace llvm;
 
-MCDXContainerTargetWriter::~MCDXContainerTargetWriter() {}
+MCDXContainerTargetWriter::~MCDXContainerTargetWriter() = default;
 
 uint64_t DXContainerObjectWriter::writeObject() {
   auto &Asm = *this->Asm;

llvm/lib/MC/MCGOFFStreamer.cpp

@@ -20,7 +20,7 @@
 
 using namespace llvm;
 
-MCGOFFStreamer::~MCGOFFStreamer() {}
+MCGOFFStreamer::~MCGOFFStreamer() = default;
 
 GOFFObjectWriter &MCGOFFStreamer::getWriter() {
   return static_cast<GOFFObjectWriter &>(getAssembler().getWriter());

llvm/lib/ObjCopy/COFF/COFFWriter.h

@@ -50,7 +50,7 @@ class COFFWriter {
   Expected<uint32_t> virtualAddressToFileAddress(uint32_t RVA);
 
 public:
-  virtual ~COFFWriter() {}
+  virtual ~COFFWriter() = default;
   Error write();
 
   COFFWriter(Object &Obj, raw_ostream &Out)

llvm/lib/ObjCopy/ELF/ELFObject.h

@@ -134,7 +134,7 @@ template <class ELFT> class ELFSectionWriter : public SectionWriter {
   using Elf_Sym = typename ELFT::Sym;
 
 public:
-  ~ELFSectionWriter() override {}
+  ~ELFSectionWriter() override = default;
   Error visit(const SymbolTableSection &Sec) override;
   Error visit(const RelocationSection &Sec) override;
   Error visit(const GnuDebugLinkSection &Sec) override;
@@ -180,7 +180,7 @@ template <class ELFT> class ELFSectionSizer : public MutableSectionVisitor {
 
 class BinarySectionWriter : public SectionWriter {
 public:
-  ~BinarySectionWriter() override {}
+  ~BinarySectionWriter() override = default;
 
   Error visit(const SymbolTableSection &Sec) override;
   Error visit(const RelocationSection &Sec) override;
@@ -346,7 +346,7 @@ template <class ELFT> class ELFWriter : public Writer {
   size_t totalSize() const;
 
 public:
-  ~ELFWriter() override {}
+  ~ELFWriter() override = default;
   bool WriteSectionHeaders;
 
   // For --only-keep-debug, select an alternative section/segment layout
@@ -367,7 +367,7 @@ class BinaryWriter : public Writer {
   uint64_t TotalSize = 0;
 
 public:
-  ~BinaryWriter() override {}
+  ~BinaryWriter() override = default;
   Error finalize() override;
   Error write() override;
   BinaryWriter(Object &Obj, raw_ostream &Out, const CommonConfig &Config)
@@ -784,7 +784,7 @@ class SectionIndexSection : public SectionBase {
   SymbolTableSection *Symbols = nullptr;
 
 public:
-  ~SectionIndexSection() override {}
+  ~SectionIndexSection() override = default;
   void addIndex(uint32_t Index) {
     assert(Size > 0);
     Indexes.push_back(Index);

llvm/lib/ObjCopy/MachO/MachOReader.h

@@ -23,7 +23,7 @@ namespace macho {
 // raw binaries and regular MachO object files.
 class Reader {
 public:
-  virtual ~Reader(){};
+  virtual ~Reader() = default;
   virtual Expected<std::unique_ptr<Object>> create() const = 0;
 };
 

llvm/lib/ObjCopy/XCOFF/XCOFFWriter.h

@@ -20,7 +20,7 @@ namespace xcoff {
 
 class XCOFFWriter {
 public:
-  virtual ~XCOFFWriter() {}
+  virtual ~XCOFFWriter() = default;
   XCOFFWriter(Object &Obj, raw_ostream &Out) : Obj(Obj), Out(Out) {}
   Error write();
 

llvm/lib/ObjectYAML/GOFFYAML.cpp

@@ -15,7 +15,7 @@
 namespace llvm {
 namespace GOFFYAML {
 
-Object::Object() {}
+Object::Object() = default;
 
 } // namespace GOFFYAML
 

llvm/lib/Passes/StandardInstrumentations.cpp

@@ -537,7 +537,7 @@ void IRChangedPrinter::handleAfter(StringRef PassID, std::string &Name,
   Out << "*** IR Dump After " << PassID << " on " << Name << " ***\n" << After;
 }
 
-IRChangedTester::~IRChangedTester() {}
+IRChangedTester::~IRChangedTester() = default;
 
 void IRChangedTester::registerCallbacks(PassInstrumentationCallbacks &PIC) {
   if (TestChanged != "")
@@ -1566,7 +1566,7 @@ void InLineChangePrinter::registerCallbacks(PassInstrumentationCallbacks &PIC) {
     TextChangeReporter<IRDataT<EmptyData>>::registerRequiredCallbacks(PIC);
 }
 
-TimeProfilingPassesHandler::TimeProfilingPassesHandler() {}
+TimeProfilingPassesHandler::TimeProfilingPassesHandler() = default;
 
 void TimeProfilingPassesHandler::registerCallbacks(
     PassInstrumentationCallbacks &PIC) {

llvm/lib/SandboxIR/Context.cpp

@@ -637,7 +637,7 @@ Context::Context(LLVMContext &LLVMCtx)
     : LLVMCtx(LLVMCtx), IRTracker(*this),
       LLVMIRBuilder(LLVMCtx, ConstantFolder()) {}
 
-Context::~Context() {}
+Context::~Context() = default;
 
 void Context::clear() {
   // TODO: Ideally we should clear only function-scope objects, and keep global

llvm/lib/Target/AMDGPU/AMDGPU.h

@@ -69,7 +69,7 @@ FunctionPass *createAMDGPUPreloadKernArgPrologLegacyPass();
 ModulePass *createAMDGPUPreloadKernelArgumentsLegacyPass(const TargetMachine *);
 
 struct AMDGPUSimplifyLibCallsPass : PassInfoMixin<AMDGPUSimplifyLibCallsPass> {
-  AMDGPUSimplifyLibCallsPass() {}
+  AMDGPUSimplifyLibCallsPass() = default;
   PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
 };
 
@@ -371,13 +371,13 @@ class AMDGPUPreloadKernelArgumentsPass
 class AMDGPUAnnotateUniformValuesPass
     : public PassInfoMixin<AMDGPUAnnotateUniformValuesPass> {
 public:
-  AMDGPUAnnotateUniformValuesPass() {}
+  AMDGPUAnnotateUniformValuesPass() = default;
   PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
 };
 
 class SIModeRegisterPass : public PassInfoMixin<SIModeRegisterPass> {
 public:
-  SIModeRegisterPass() {}
+  SIModeRegisterPass() = default;
   PreservedAnalyses run(MachineFunction &F, MachineFunctionAnalysisManager &AM);
 };
 

llvm/lib/Target/AMDGPU/AMDGPUArgumentUsageInfo.h

@@ -96,7 +96,7 @@ inline raw_ostream &operator<<(raw_ostream &OS, const ArgDescriptor &Arg) {
 }
 
 struct KernArgPreloadDescriptor : public ArgDescriptor {
-  KernArgPreloadDescriptor() {}
+  KernArgPreloadDescriptor() = default;
   SmallVector<MCRegister> Regs;
 };