[cleanup] Mark regexp methods in subclasses with override.

Fixing clang-tidy warning.

Bug: v8:8015
Change-Id: I46b96899f0a5973f2fbf8af94eb43d14955a3f45
Reviewed-on: https://chromium-review.googlesource.com/1227072Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Florian Sattler <sattlerf@google.com>
Cr-Commit-Position: refs/heads/master@{#55978}

src/regexp/regexp-macro-assembler-tracer.h

@@ -14,71 +14,62 @@ namespace internal {
 class RegExpMacroAssemblerTracer: public RegExpMacroAssembler {
  public:
   RegExpMacroAssemblerTracer(Isolate* isolate, RegExpMacroAssembler* assembler);
-  virtual ~RegExpMacroAssemblerTracer();
-  virtual void AbortedCodeGeneration();
-  virtual int stack_limit_slack() { return assembler_->stack_limit_slack(); }
-  virtual bool CanReadUnaligned() { return assembler_->CanReadUnaligned(); }
-  virtual void AdvanceCurrentPosition(int by);  // Signed cp change.
-  virtual void AdvanceRegister(int reg, int by);  // r[reg] += by.
-  virtual void Backtrack();
-  virtual void Bind(Label* label);
-  virtual void CheckAtStart(Label* on_at_start);
-  virtual void CheckCharacter(unsigned c, Label* on_equal);
-  virtual void CheckCharacterAfterAnd(unsigned c,
-                                      unsigned and_with,
-                                      Label* on_equal);
-  virtual void CheckCharacterGT(uc16 limit, Label* on_greater);
-  virtual void CheckCharacterLT(uc16 limit, Label* on_less);
-  virtual void CheckGreedyLoop(Label* on_tos_equals_current_position);
-  virtual void CheckNotAtStart(int cp_offset, Label* on_not_at_start);
-  virtual void CheckNotBackReference(int start_reg, bool read_backward,
-                                     Label* on_no_match);
-  virtual void CheckNotBackReferenceIgnoreCase(int start_reg,
-                                               bool read_backward, bool unicode,
-                                               Label* on_no_match);
-  virtual void CheckNotCharacter(unsigned c, Label* on_not_equal);
-  virtual void CheckNotCharacterAfterAnd(unsigned c,
-                                         unsigned and_with,
-                                         Label* on_not_equal);
-  virtual void CheckNotCharacterAfterMinusAnd(uc16 c,
-                                              uc16 minus,
-                                              uc16 and_with,
-                                              Label* on_not_equal);
-  virtual void CheckCharacterInRange(uc16 from,
-                                     uc16 to,
-                                     Label* on_in_range);
-  virtual void CheckCharacterNotInRange(uc16 from,
-                                        uc16 to,
-                                        Label* on_not_in_range);
-  virtual void CheckBitInTable(Handle<ByteArray> table, Label* on_bit_set);
-  virtual void CheckPosition(int cp_offset, Label* on_outside_input);
-  virtual bool CheckSpecialCharacterClass(uc16 type,
-                                          Label* on_no_match);
-  virtual void Fail();
-  virtual Handle<HeapObject> GetCode(Handle<String> source);
-  virtual void GoTo(Label* label);
-  virtual void IfRegisterGE(int reg, int comparand, Label* if_ge);
-  virtual void IfRegisterLT(int reg, int comparand, Label* if_lt);
-  virtual void IfRegisterEqPos(int reg, Label* if_eq);
-  virtual IrregexpImplementation Implementation();
-  virtual void LoadCurrentCharacter(int cp_offset,
-                                    Label* on_end_of_input,
-                                    bool check_bounds = true,
-                                    int characters = 1);
-  virtual void PopCurrentPosition();
-  virtual void PopRegister(int register_index);
-  virtual void PushBacktrack(Label* label);
-  virtual void PushCurrentPosition();
-  virtual void PushRegister(int register_index,
-                            StackCheckFlag check_stack_limit);
-  virtual void ReadCurrentPositionFromRegister(int reg);
-  virtual void ReadStackPointerFromRegister(int reg);
-  virtual void SetCurrentPositionFromEnd(int by);
-  virtual void SetRegister(int register_index, int to);
-  virtual bool Succeed();
-  virtual void WriteCurrentPositionToRegister(int reg, int cp_offset);
-  virtual void ClearRegisters(int reg_from, int reg_to);
-  virtual void WriteStackPointerToRegister(int reg);
+  ~RegExpMacroAssemblerTracer() override;
+  void AbortedCodeGeneration() override;
+  int stack_limit_slack() override { return assembler_->stack_limit_slack(); }
+  bool CanReadUnaligned() override { return assembler_->CanReadUnaligned(); }
+  void AdvanceCurrentPosition(int by) override;    // Signed cp change.
+  void AdvanceRegister(int reg, int by) override;  // r[reg] += by.
+  void Backtrack() override;
+  void Bind(Label* label) override;
+  void CheckAtStart(Label* on_at_start) override;
+  void CheckCharacter(unsigned c, Label* on_equal) override;
+  void CheckCharacterAfterAnd(unsigned c, unsigned and_with,
+                              Label* on_equal) override;
+  void CheckCharacterGT(uc16 limit, Label* on_greater) override;
+  void CheckCharacterLT(uc16 limit, Label* on_less) override;
+  void CheckGreedyLoop(Label* on_tos_equals_current_position) override;
+  void CheckNotAtStart(int cp_offset, Label* on_not_at_start) override;
+  void CheckNotBackReference(int start_reg, bool read_backward,
+                             Label* on_no_match) override;
+  void CheckNotBackReferenceIgnoreCase(int start_reg, bool read_backward,
+                                       bool unicode,
+                                       Label* on_no_match) override;
+  void CheckNotCharacter(unsigned c, Label* on_not_equal) override;
+  void CheckNotCharacterAfterAnd(unsigned c, unsigned and_with,
+                                 Label* on_not_equal) override;
+  void CheckNotCharacterAfterMinusAnd(uc16 c, uc16 minus, uc16 and_with,
+                                      Label* on_not_equal) override;
+  void CheckCharacterInRange(uc16 from, uc16 to, Label* on_in_range) override;
+  void CheckCharacterNotInRange(uc16 from, uc16 to,
+                                Label* on_not_in_range) override;
+  void CheckBitInTable(Handle<ByteArray> table, Label* on_bit_set) override;
+  void CheckPosition(int cp_offset, Label* on_outside_input) override;
+  bool CheckSpecialCharacterClass(uc16 type, Label* on_no_match) override;
+  void Fail() override;
+  Handle<HeapObject> GetCode(Handle<String> source) override;
+  void GoTo(Label* label) override;
+  void IfRegisterGE(int reg, int comparand, Label* if_ge) override;
+  void IfRegisterLT(int reg, int comparand, Label* if_lt) override;
+  void IfRegisterEqPos(int reg, Label* if_eq) override;
+  IrregexpImplementation Implementation() override;
+  void LoadCurrentCharacter(int cp_offset, Label* on_end_of_input,
+                            bool check_bounds = true,
+                            int characters = 1) override;
+  void PopCurrentPosition() override;
+  void PopRegister(int register_index) override;
+  void PushBacktrack(Label* label) override;
+  void PushCurrentPosition() override;
+  void PushRegister(int register_index,
+                    StackCheckFlag check_stack_limit) override;
+  void ReadCurrentPositionFromRegister(int reg) override;
+  void ReadStackPointerFromRegister(int reg) override;
+  void SetCurrentPositionFromEnd(int by) override;
+  void SetRegister(int register_index, int to) override;
+  bool Succeed() override;
+  void WriteCurrentPositionToRegister(int reg, int cp_offset) override;
+  void ClearRegisters(int reg_from, int reg_to) override;
+  void WriteStackPointerToRegister(int reg) override;
 
  private:
   RegExpMacroAssembler* assembler_;

src/regexp/regexp-macro-assembler.h

@@ -212,8 +212,8 @@ class NativeRegExpMacroAssembler: public RegExpMacroAssembler {
   enum Result { RETRY = -2, EXCEPTION = -1, FAILURE = 0, SUCCESS = 1 };
 
   NativeRegExpMacroAssembler(Isolate* isolate, Zone* zone);
-  virtual ~NativeRegExpMacroAssembler();
-  virtual bool CanReadUnaligned();
+  ~NativeRegExpMacroAssembler() override;
+  bool CanReadUnaligned() override;
 
   static Result Match(Handle<Code> regexp,
                       Handle<String> subject,

src/regexp/x64/regexp-macro-assembler-x64.h

@@ -19,74 +19,65 @@ class RegExpMacroAssemblerX64: public NativeRegExpMacroAssembler {
  public:
   RegExpMacroAssemblerX64(Isolate* isolate, Zone* zone, Mode mode,
                           int registers_to_save);
-  virtual ~RegExpMacroAssemblerX64();
-  virtual int stack_limit_slack();
-  virtual void AdvanceCurrentPosition(int by);
-  virtual void AdvanceRegister(int reg, int by);
-  virtual void Backtrack();
-  virtual void Bind(Label* label);
-  virtual void CheckAtStart(Label* on_at_start);
-  virtual void CheckCharacter(uint32_t c, Label* on_equal);
-  virtual void CheckCharacterAfterAnd(uint32_t c,
-                                      uint32_t mask,
-                                      Label* on_equal);
-  virtual void CheckCharacterGT(uc16 limit, Label* on_greater);
-  virtual void CheckCharacterLT(uc16 limit, Label* on_less);
+  ~RegExpMacroAssemblerX64() override;
+  int stack_limit_slack() override;
+  void AdvanceCurrentPosition(int by) override;
+  void AdvanceRegister(int reg, int by) override;
+  void Backtrack() override;
+  void Bind(Label* label) override;
+  void CheckAtStart(Label* on_at_start) override;
+  void CheckCharacter(uint32_t c, Label* on_equal) override;
+  void CheckCharacterAfterAnd(uint32_t c, uint32_t mask,
+                              Label* on_equal) override;
+  void CheckCharacterGT(uc16 limit, Label* on_greater) override;
+  void CheckCharacterLT(uc16 limit, Label* on_less) override;
   // A "greedy loop" is a loop that is both greedy and with a simple
   // body. It has a particularly simple implementation.
-  virtual void CheckGreedyLoop(Label* on_tos_equals_current_position);
-  virtual void CheckNotAtStart(int cp_offset, Label* on_not_at_start);
-  virtual void CheckNotBackReference(int start_reg, bool read_backward,
-                                     Label* on_no_match);
-  virtual void CheckNotBackReferenceIgnoreCase(int start_reg,
-                                               bool read_backward, bool unicode,
-                                               Label* on_no_match);
-  virtual void CheckNotCharacter(uint32_t c, Label* on_not_equal);
-  virtual void CheckNotCharacterAfterAnd(uint32_t c,
-                                         uint32_t mask,
-                                         Label* on_not_equal);
-  virtual void CheckNotCharacterAfterMinusAnd(uc16 c,
-                                              uc16 minus,
-                                              uc16 mask,
-                                              Label* on_not_equal);
-  virtual void CheckCharacterInRange(uc16 from,
-                                     uc16 to,
-                                     Label* on_in_range);
-  virtual void CheckCharacterNotInRange(uc16 from,
-                                        uc16 to,
-                                        Label* on_not_in_range);
-  virtual void CheckBitInTable(Handle<ByteArray> table, Label* on_bit_set);
+  void CheckGreedyLoop(Label* on_tos_equals_current_position) override;
+  void CheckNotAtStart(int cp_offset, Label* on_not_at_start) override;
+  void CheckNotBackReference(int start_reg, bool read_backward,
+                             Label* on_no_match) override;
+  void CheckNotBackReferenceIgnoreCase(int start_reg, bool read_backward,
+                                       bool unicode,
+                                       Label* on_no_match) override;
+  void CheckNotCharacter(uint32_t c, Label* on_not_equal) override;
+  void CheckNotCharacterAfterAnd(uint32_t c, uint32_t mask,
+                                 Label* on_not_equal) override;
+  void CheckNotCharacterAfterMinusAnd(uc16 c, uc16 minus, uc16 mask,
+                                      Label* on_not_equal) override;
+  void CheckCharacterInRange(uc16 from, uc16 to, Label* on_in_range) override;
+  void CheckCharacterNotInRange(uc16 from, uc16 to,
+                                Label* on_not_in_range) override;
+  void CheckBitInTable(Handle<ByteArray> table, Label* on_bit_set) override;
 
   // Checks whether the given offset from the current position is before
   // the end of the string.
-  virtual void CheckPosition(int cp_offset, Label* on_outside_input);
-  virtual bool CheckSpecialCharacterClass(uc16 type,
-                                          Label* on_no_match);
-  virtual void Fail();
-  virtual Handle<HeapObject> GetCode(Handle<String> source);
-  virtual void GoTo(Label* label);
-  virtual void IfRegisterGE(int reg, int comparand, Label* if_ge);
-  virtual void IfRegisterLT(int reg, int comparand, Label* if_lt);
-  virtual void IfRegisterEqPos(int reg, Label* if_eq);
-  virtual IrregexpImplementation Implementation();
-  virtual void LoadCurrentCharacter(int cp_offset,
-                                    Label* on_end_of_input,
-                                    bool check_bounds = true,
-                                    int characters = 1);
-  virtual void PopCurrentPosition();
-  virtual void PopRegister(int register_index);
-  virtual void PushBacktrack(Label* label);
-  virtual void PushCurrentPosition();
-  virtual void PushRegister(int register_index,
-                            StackCheckFlag check_stack_limit);
-  virtual void ReadCurrentPositionFromRegister(int reg);
-  virtual void ReadStackPointerFromRegister(int reg);
-  virtual void SetCurrentPositionFromEnd(int by);
-  virtual void SetRegister(int register_index, int to);
-  virtual bool Succeed();
-  virtual void WriteCurrentPositionToRegister(int reg, int cp_offset);
-  virtual void ClearRegisters(int reg_from, int reg_to);
-  virtual void WriteStackPointerToRegister(int reg);
+  void CheckPosition(int cp_offset, Label* on_outside_input) override;
+  bool CheckSpecialCharacterClass(uc16 type, Label* on_no_match) override;
+  void Fail() override;
+  Handle<HeapObject> GetCode(Handle<String> source) override;
+  void GoTo(Label* label) override;
+  void IfRegisterGE(int reg, int comparand, Label* if_ge) override;
+  void IfRegisterLT(int reg, int comparand, Label* if_lt) override;
+  void IfRegisterEqPos(int reg, Label* if_eq) override;
+  IrregexpImplementation Implementation() override;
+  void LoadCurrentCharacter(int cp_offset, Label* on_end_of_input,
+                            bool check_bounds = true,
+                            int characters = 1) override;
+  void PopCurrentPosition() override;
+  void PopRegister(int register_index) override;
+  void PushBacktrack(Label* label) override;
+  void PushCurrentPosition() override;
+  void PushRegister(int register_index,
+                    StackCheckFlag check_stack_limit) override;
+  void ReadCurrentPositionFromRegister(int reg) override;
+  void ReadStackPointerFromRegister(int reg) override;
+  void SetCurrentPositionFromEnd(int by) override;
+  void SetRegister(int register_index, int to) override;
+  bool Succeed() override;
+  void WriteCurrentPositionToRegister(int reg, int cp_offset) override;
+  void ClearRegisters(int reg_from, int reg_to) override;
+  void WriteStackPointerToRegister(int reg) override;
 
   static Result Match(Handle<Code> regexp,
                       Handle<String> subject,