Devirtualize `_InternalParse`.

All parsing now happens via a TcParser table, accessible from `ClassData` either directly or through the `get_tc_table` callback.
All codegen types insert their generated table in their ClassData. Dynamic types use the callback to generate it on demand.

PiperOrigin-RevId: 621632525

src/google/protobuf/compiler/cpp/message.cc

@@ -1732,11 +1732,6 @@ void MessageGenerator::GenerateClassDefinition(io::Printer* p) {
               bool IsInitialized() const final;
 
               ::size_t ByteSizeLong() const final;
-            )cc");
-
-            parse_function_generator_->GenerateMethodDecls(p);
-
-            p->Emit(R"cc(
               $uint8$* _InternalSerialize(
                   $uint8$* target,
                   ::$proto_ns$::io::EpsCopyOutputStream* stream) const final;
@@ -2188,11 +2183,6 @@ void MessageGenerator::GenerateClassMethods(io::Printer* p) {
     GenerateClear(p);
     format("\n");
 
-    if (!HasSimpleBaseClass(descriptor_, options_)) {
-      parse_function_generator_->GenerateMethodImpls(p);
-      format("\n");
-    }
-
     GenerateSerializeWithCachedSizesToArray(p);
     format("\n");
 
@@ -3595,6 +3585,8 @@ void MessageGenerator::GenerateClassData(io::Printer* p) {
                     &$desc_table$,
                     $tracker_on_get_metadata$,
                 };
+            $pbi$::PrefetchToLocalCache(&_data_);
+            $pbi$::PrefetchToLocalCache(_data_.tc_table);
             return _data_.base();
           }
         )cc");

src/google/protobuf/compiler/cpp/parse_function_generator.cc

@@ -107,30 +107,6 @@ ParseFunctionGenerator::ParseFunctionGenerator(
   variables_["classname"] = ClassName(descriptor, false);
 }
 
-static bool ShouldGenerateInternalParse(const Descriptor* descriptor,
-                                        const Options& options) {
-  return HasGeneratedMethods(descriptor->file(), options) &&
-         HasDescriptorMethods(descriptor->file(), options);
-}
-
-void ParseFunctionGenerator::GenerateMethodDecls(io::Printer* printer) {
-  if (!ShouldGenerateInternalParse(descriptor_, options_)) return;
-  Formatter format(printer, variables_);
-  format(
-      "const char* _InternalParse(const char* ptr, "
-      "::$proto_ns$::internal::ParseContext* ctx) final;\n");
-}
-
-void ParseFunctionGenerator::GenerateMethodImpls(io::Printer* printer) {
-  if (!ShouldGenerateInternalParse(descriptor_, options_)) return;
-  printer->Emit(R"cc(
-    const char* $classname$::_InternalParse(const char* ptr,
-                                            ::_pbi::ParseContext* ctx) {
-      return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-    }
-  )cc");
-}
-
 struct SkipEntry16 {
   uint16_t skipmap;
   uint16_t field_entry_offset;

src/google/protobuf/compiler/cpp/parse_function_generator.h

@@ -36,12 +36,6 @@ class ParseFunctionGenerator {
       const absl::flat_hash_map<absl::string_view, std::string>& vars,
       int index_in_file_messages);
 
-  // Emits class-level method declarations to `printer`:
-  void GenerateMethodDecls(io::Printer* printer);
-
-  // Emits out-of-class method implementation definitions to `printer`:
-  void GenerateMethodImpls(io::Printer* printer);
-
   // Emits class-level data member declarations to `printer`:
   void GenerateDataDecls(io::Printer* printer);
 

src/google/protobuf/compiler/java/java_features.pb.cc

@@ -187,6 +187,8 @@ JavaFeatures::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fcompiler_2fjava_2fjava_5ffeatures_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 PROTOBUF_CONSTINIT PROTOBUF_ATTRIBUTE_INIT_PRIORITY1
@@ -246,11 +248,6 @@ PROTOBUF_NOINLINE void JavaFeatures::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* JavaFeatures::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* JavaFeatures::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {

src/google/protobuf/compiler/java/java_features.pb.h

@@ -193,7 +193,6 @@ class PROTOC_EXPORT JavaFeatures final : public ::google::protobuf::Message
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;

src/google/protobuf/compiler/plugin.pb.cc

@@ -373,6 +373,8 @@ Version::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 PROTOBUF_CONSTINIT PROTOBUF_ATTRIBUTE_INIT_PRIORITY1
@@ -450,11 +452,6 @@ PROTOBUF_NOINLINE void Version::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* Version::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* Version::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -685,6 +682,8 @@ CodeGeneratorRequest::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 PROTOBUF_CONSTINIT PROTOBUF_ATTRIBUTE_INIT_PRIORITY1
@@ -776,11 +775,6 @@ PROTOBUF_NOINLINE void CodeGeneratorRequest::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* CodeGeneratorRequest::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* CodeGeneratorRequest::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -1033,6 +1027,8 @@ CodeGeneratorResponse_File::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 PROTOBUF_CONSTINIT PROTOBUF_ATTRIBUTE_INIT_PRIORITY1
@@ -1119,11 +1115,6 @@ PROTOBUF_NOINLINE void CodeGeneratorResponse_File::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* CodeGeneratorResponse_File::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* CodeGeneratorResponse_File::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -1354,6 +1345,8 @@ CodeGeneratorResponse::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 PROTOBUF_CONSTINIT PROTOBUF_ATTRIBUTE_INIT_PRIORITY1
@@ -1441,11 +1434,6 @@ PROTOBUF_NOINLINE void CodeGeneratorResponse::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* CodeGeneratorResponse::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* CodeGeneratorResponse::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {

src/google/protobuf/compiler/plugin.pb.h

@@ -210,7 +210,6 @@ class PROTOC_EXPORT Version final : public ::google::protobuf::Message
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -428,7 +427,6 @@ class PROTOC_EXPORT CodeGeneratorResponse_File final : public ::google::protobuf
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -662,7 +660,6 @@ class PROTOC_EXPORT CodeGeneratorResponse final : public ::google::protobuf::Mes
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -920,7 +917,6 @@ class PROTOC_EXPORT CodeGeneratorRequest final : public ::google::protobuf::Mess
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;

src/google/protobuf/cpp_features.pb.cc

@@ -187,6 +187,8 @@ CppFeatures::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fcpp_5ffeatures_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 PROTOBUF_CONSTINIT PROTOBUF_ATTRIBUTE_INIT_PRIORITY1
@@ -246,11 +248,6 @@ PROTOBUF_NOINLINE void CppFeatures::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* CppFeatures::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* CppFeatures::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {

src/google/protobuf/cpp_features.pb.h

@@ -194,7 +194,6 @@ class PROTOBUF_EXPORT CppFeatures final : public ::google::protobuf::Message
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;

src/google/protobuf/descriptor.pb.cc

@@ -2461,6 +2461,8 @@ FileDescriptorSet::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<0, 1, 1, 0, 2> FileDescriptorSet::_table_ = {
@@ -2507,11 +2509,6 @@ PROTOBUF_NOINLINE void FileDescriptorSet::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* FileDescriptorSet::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* FileDescriptorSet::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -2695,6 +2692,8 @@ FileDescriptorProto::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<4, 13, 7, 79, 2> FileDescriptorProto::_table_ = {
@@ -2856,11 +2855,6 @@ PROTOBUF_NOINLINE void FileDescriptorProto::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* FileDescriptorProto::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* FileDescriptorProto::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -3270,6 +3264,8 @@ DescriptorProto_ExtensionRange::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<2, 3, 1, 0, 2> DescriptorProto_ExtensionRange::_table_ = {
@@ -3339,11 +3335,6 @@ PROTOBUF_NOINLINE void DescriptorProto_ExtensionRange::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* DescriptorProto_ExtensionRange::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* DescriptorProto_ExtensionRange::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -3533,6 +3524,8 @@ DescriptorProto_ReservedRange::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<1, 2, 0, 0, 2> DescriptorProto_ReservedRange::_table_ = {
@@ -3591,11 +3584,6 @@ PROTOBUF_NOINLINE void DescriptorProto_ReservedRange::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* DescriptorProto_ReservedRange::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* DescriptorProto_ReservedRange::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -3792,6 +3780,8 @@ DescriptorProto::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<4, 10, 8, 65, 2> DescriptorProto::_table_ = {
@@ -3927,11 +3917,6 @@ PROTOBUF_NOINLINE void DescriptorProto::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* DescriptorProto::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* DescriptorProto::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -4285,6 +4270,8 @@ ExtensionRangeOptions_Declaration::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<3, 5, 0, 71, 2> ExtensionRangeOptions_Declaration::_table_ = {
@@ -4376,11 +4363,6 @@ PROTOBUF_NOINLINE void ExtensionRangeOptions_Declaration::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* ExtensionRangeOptions_Declaration::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* ExtensionRangeOptions_Declaration::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -4619,6 +4601,8 @@ ExtensionRangeOptions::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<3, 4, 4, 0, 12> ExtensionRangeOptions::_table_ = {
@@ -4702,11 +4686,6 @@ PROTOBUF_NOINLINE void ExtensionRangeOptions::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* ExtensionRangeOptions::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* ExtensionRangeOptions::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -4971,6 +4950,8 @@ FieldDescriptorProto::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<4, 11, 3, 96, 2> FieldDescriptorProto::_table_ = {
@@ -5121,11 +5102,6 @@ PROTOBUF_NOINLINE void FieldDescriptorProto::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* FieldDescriptorProto::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* FieldDescriptorProto::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -5474,6 +5450,8 @@ OneofDescriptorProto::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<1, 2, 1, 49, 2> OneofDescriptorProto::_table_ = {
@@ -5539,11 +5517,6 @@ PROTOBUF_NOINLINE void OneofDescriptorProto::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* OneofDescriptorProto::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* OneofDescriptorProto::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -5716,6 +5689,8 @@ EnumDescriptorProto_EnumReservedRange::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<1, 2, 0, 0, 2> EnumDescriptorProto_EnumReservedRange::_table_ = {
@@ -5774,11 +5749,6 @@ PROTOBUF_NOINLINE void EnumDescriptorProto_EnumReservedRange::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* EnumDescriptorProto_EnumReservedRange::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* EnumDescriptorProto_EnumReservedRange::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -5965,6 +5935,8 @@ EnumDescriptorProto::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<3, 5, 3, 61, 2> EnumDescriptorProto::_table_ = {
@@ -6057,11 +6029,6 @@ PROTOBUF_NOINLINE void EnumDescriptorProto::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* EnumDescriptorProto::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* EnumDescriptorProto::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -6311,6 +6278,8 @@ EnumValueDescriptorProto::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<2, 3, 1, 53, 2> EnumValueDescriptorProto::_table_ = {
@@ -6384,11 +6353,6 @@ PROTOBUF_NOINLINE void EnumValueDescriptorProto::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* EnumValueDescriptorProto::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* EnumValueDescriptorProto::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -6600,6 +6564,8 @@ ServiceDescriptorProto::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<2, 3, 2, 51, 2> ServiceDescriptorProto::_table_ = {
@@ -6674,11 +6640,6 @@ PROTOBUF_NOINLINE void ServiceDescriptorProto::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* ServiceDescriptorProto::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* ServiceDescriptorProto::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -6905,6 +6866,8 @@ MethodDescriptorProto::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<3, 6, 1, 71, 2> MethodDescriptorProto::_table_ = {
@@ -7007,11 +6970,6 @@ PROTOBUF_NOINLINE void MethodDescriptorProto::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* MethodDescriptorProto::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* MethodDescriptorProto::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -7317,6 +7275,8 @@ FileOptions::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<5, 21, 3, 202, 12> FileOptions::_table_ = {
@@ -7556,11 +7516,6 @@ PROTOBUF_NOINLINE void FileOptions::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* FileOptions::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* FileOptions::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -8104,6 +8059,8 @@ MessageOptions::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<3, 7, 2, 0, 7> MessageOptions::_table_ = {
@@ -8198,11 +8155,6 @@ PROTOBUF_NOINLINE void MessageOptions::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* MessageOptions::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* MessageOptions::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -8477,6 +8429,8 @@ FieldOptions_EditionDefault::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<1, 2, 1, 57, 2> FieldOptions_EditionDefault::_table_ = {
@@ -8537,11 +8491,6 @@ PROTOBUF_NOINLINE void FieldOptions_EditionDefault::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* FieldOptions_EditionDefault::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* FieldOptions_EditionDefault::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -8728,6 +8677,8 @@ FieldOptions_FeatureSupport::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<2, 4, 3, 71, 2> FieldOptions_FeatureSupport::_table_ = {
@@ -8806,11 +8757,6 @@ PROTOBUF_NOINLINE void FieldOptions_FeatureSupport::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* FieldOptions_FeatureSupport::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* FieldOptions_FeatureSupport::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -9049,6 +8995,8 @@ FieldOptions::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<4, 14, 8, 0, 7> FieldOptions::_table_ = {
@@ -9201,11 +9149,6 @@ PROTOBUF_NOINLINE void FieldOptions::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* FieldOptions::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* FieldOptions::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -9615,6 +9558,8 @@ OneofOptions::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<2, 2, 2, 0, 7> OneofOptions::_table_ = {
@@ -9679,11 +9624,6 @@ PROTOBUF_NOINLINE void OneofOptions::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* OneofOptions::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* OneofOptions::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -9892,6 +9832,8 @@ EnumOptions::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<3, 5, 2, 0, 7> EnumOptions::_table_ = {
@@ -9976,11 +9918,6 @@ PROTOBUF_NOINLINE void EnumOptions::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* EnumOptions::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* EnumOptions::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -10243,6 +10180,8 @@ EnumValueOptions::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<3, 4, 2, 0, 7> EnumValueOptions::_table_ = {
@@ -10324,11 +10263,6 @@ PROTOBUF_NOINLINE void EnumValueOptions::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* EnumValueOptions::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* EnumValueOptions::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -10570,6 +10504,8 @@ ServiceOptions::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<2, 3, 2, 0, 12> ServiceOptions::_table_ = {
@@ -10641,11 +10577,6 @@ PROTOBUF_NOINLINE void ServiceOptions::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* ServiceOptions::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* ServiceOptions::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -10878,6 +10809,8 @@ MethodOptions::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<3, 4, 3, 0, 12> MethodOptions::_table_ = {
@@ -10963,11 +10896,6 @@ PROTOBUF_NOINLINE void MethodOptions::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* MethodOptions::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* MethodOptions::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -11201,6 +11129,8 @@ UninterpretedOption_NamePart::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<1, 2, 0, 62, 2> UninterpretedOption_NamePart::_table_ = {
@@ -11261,11 +11191,6 @@ PROTOBUF_NOINLINE void UninterpretedOption_NamePart::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* UninterpretedOption_NamePart::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* UninterpretedOption_NamePart::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -11462,6 +11387,8 @@ UninterpretedOption::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<3, 7, 1, 75, 2> UninterpretedOption::_table_ = {
@@ -11567,11 +11494,6 @@ PROTOBUF_NOINLINE void UninterpretedOption::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* UninterpretedOption::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* UninterpretedOption::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -11848,6 +11770,8 @@ FeatureSet::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<3, 6, 6, 0, 2> FeatureSet::_table_ = {
@@ -11938,11 +11862,6 @@ PROTOBUF_NOINLINE void FeatureSet::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* FeatureSet::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* FeatureSet::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -12208,6 +12127,8 @@ FeatureSetDefaults_FeatureSetEditionDefault::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<2, 4, 4, 0, 2> FeatureSetDefaults_FeatureSetEditionDefault::_table_ = {
@@ -12291,11 +12212,6 @@ PROTOBUF_NOINLINE void FeatureSetDefaults_FeatureSetEditionDefault::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* FeatureSetDefaults_FeatureSetEditionDefault::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* FeatureSetDefaults_FeatureSetEditionDefault::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -12539,6 +12455,8 @@ FeatureSetDefaults::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<1, 3, 3, 0, 2> FeatureSetDefaults::_table_ = {
@@ -12603,11 +12521,6 @@ PROTOBUF_NOINLINE void FeatureSetDefaults::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* FeatureSetDefaults::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* FeatureSetDefaults::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -12815,6 +12728,8 @@ SourceCodeInfo_Location::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<3, 5, 0, 106, 2> SourceCodeInfo_Location::_table_ = {
@@ -12905,11 +12820,6 @@ PROTOBUF_NOINLINE void SourceCodeInfo_Location::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* SourceCodeInfo_Location::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* SourceCodeInfo_Location::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -13143,6 +13053,8 @@ SourceCodeInfo::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<0, 1, 1, 0, 2> SourceCodeInfo::_table_ = {
@@ -13189,11 +13101,6 @@ PROTOBUF_NOINLINE void SourceCodeInfo::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* SourceCodeInfo::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* SourceCodeInfo::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -13357,6 +13264,8 @@ GeneratedCodeInfo_Annotation::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<3, 5, 1, 64, 2> GeneratedCodeInfo_Annotation::_table_ = {
@@ -13443,11 +13352,6 @@ PROTOBUF_NOINLINE void GeneratedCodeInfo_Annotation::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* GeneratedCodeInfo_Annotation::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* GeneratedCodeInfo_Annotation::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {
@@ -13677,6 +13581,8 @@ GeneratedCodeInfo::GetClassData() const {
           &descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
           nullptr,  // tracker
       };
+  ::google::protobuf::internal::PrefetchToLocalCache(&_data_);
+  ::google::protobuf::internal::PrefetchToLocalCache(_data_.tc_table);
   return _data_.base();
 }
 constexpr ::_pbi::TcParseTable<0, 1, 1, 0, 2> GeneratedCodeInfo::_table_ = {
@@ -13723,11 +13629,6 @@ PROTOBUF_NOINLINE void GeneratedCodeInfo::Clear() {
   _internal_metadata_.Clear<::google::protobuf::UnknownFieldSet>();
 }
 
-const char* GeneratedCodeInfo::_InternalParse(const char* ptr,
-                                        ::_pbi::ParseContext* ctx) {
-  return ::_pbi::TcParser::ParseLoop(this, ptr, ctx, &_table_.header);
-}
-
 ::uint8_t* GeneratedCodeInfo::_InternalSerialize(
     ::uint8_t* target,
     ::google::protobuf::io::EpsCopyOutputStream* stream) const {

src/google/protobuf/descriptor.pb.h

@@ -795,7 +795,6 @@ class PROTOBUF_EXPORT UninterpretedOption_NamePart final : public ::google::prot
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -987,7 +986,6 @@ class PROTOBUF_EXPORT SourceCodeInfo_Location final : public ::google::protobuf:
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -1257,7 +1255,6 @@ class PROTOBUF_EXPORT GeneratedCodeInfo_Annotation final : public ::google::prot
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -1516,7 +1513,6 @@ class PROTOBUF_EXPORT FieldOptions_FeatureSupport final : public ::google::proto
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -1734,7 +1730,6 @@ class PROTOBUF_EXPORT FieldOptions_EditionDefault final : public ::google::proto
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -1926,7 +1921,6 @@ class PROTOBUF_EXPORT FeatureSet final : public ::google::protobuf::Message
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -2465,7 +2459,6 @@ class PROTOBUF_EXPORT ExtensionRangeOptions_Declaration final : public ::google:
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -2702,7 +2695,6 @@ class PROTOBUF_EXPORT EnumDescriptorProto_EnumReservedRange final : public ::goo
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -2888,7 +2880,6 @@ class PROTOBUF_EXPORT DescriptorProto_ReservedRange final : public ::google::pro
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -3074,7 +3065,6 @@ class PROTOBUF_EXPORT UninterpretedOption final : public ::google::protobuf::Mes
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -3350,7 +3340,6 @@ class PROTOBUF_EXPORT SourceCodeInfo final : public ::google::protobuf::Message
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -3529,7 +3518,6 @@ class PROTOBUF_EXPORT GeneratedCodeInfo final : public ::google::protobuf::Messa
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -3708,7 +3696,6 @@ class PROTOBUF_EXPORT FeatureSetDefaults_FeatureSetEditionDefault final : public
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -3932,7 +3919,6 @@ class PROTOBUF_EXPORT ServiceOptions final : public ::google::protobuf::Message
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -4321,7 +4307,6 @@ class PROTOBUF_EXPORT OneofOptions final : public ::google::protobuf::Message
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -4697,7 +4682,6 @@ class PROTOBUF_EXPORT MethodOptions final : public ::google::protobuf::Message
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -5119,7 +5103,6 @@ class PROTOBUF_EXPORT MessageOptions final : public ::google::protobuf::Message
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -5560,7 +5543,6 @@ class PROTOBUF_EXPORT FileOptions final : public ::google::protobuf::Message
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -6263,7 +6245,6 @@ class PROTOBUF_EXPORT FieldOptions final : public ::google::protobuf::Message
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -6902,7 +6883,6 @@ class PROTOBUF_EXPORT FeatureSetDefaults final : public ::google::protobuf::Mess
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -7108,7 +7088,6 @@ class PROTOBUF_EXPORT ExtensionRangeOptions final : public ::google::protobuf::M
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -7536,7 +7515,6 @@ class PROTOBUF_EXPORT EnumValueOptions final : public ::google::protobuf::Messag
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -7938,7 +7916,6 @@ class PROTOBUF_EXPORT EnumOptions final : public ::google::protobuf::Message
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -8353,7 +8330,6 @@ class PROTOBUF_EXPORT OneofDescriptorProto final : public ::google::protobuf::Me
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -8549,7 +8525,6 @@ class PROTOBUF_EXPORT MethodDescriptorProto final : public ::google::protobuf::M
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -8809,7 +8784,6 @@ class PROTOBUF_EXPORT FieldDescriptorProto final : public ::google::protobuf::Me
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -9201,7 +9175,6 @@ class PROTOBUF_EXPORT EnumValueDescriptorProto final : public ::google::protobuf
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -9410,7 +9383,6 @@ class PROTOBUF_EXPORT DescriptorProto_ExtensionRange final : public ::google::pr
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -9613,7 +9585,6 @@ class PROTOBUF_EXPORT ServiceDescriptorProto final : public ::google::protobuf::
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -9828,7 +9799,6 @@ class PROTOBUF_EXPORT EnumDescriptorProto final : public ::google::protobuf::Mes
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -10093,7 +10063,6 @@ class PROTOBUF_EXPORT DescriptorProto final : public ::google::protobuf::Message
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -10454,7 +10423,6 @@ class PROTOBUF_EXPORT FileDescriptorProto final : public ::google::protobuf::Mes
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;
@@ -10864,7 +10832,6 @@ class PROTOBUF_EXPORT FileDescriptorSet final : public ::google::protobuf::Messa
   bool IsInitialized() const final;
 
   ::size_t ByteSizeLong() const final;
-  const char* _InternalParse(const char* ptr, ::google::protobuf::internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(
       ::uint8_t* target,
       ::google::protobuf::io::EpsCopyOutputStream* stream) const final;

src/google/protobuf/dynamic_message.cc

@@ -268,6 +268,7 @@ struct DynamicMessageFactory::TypeInfo {
 
   DynamicMessage::ClassDataFull class_data = {
       {
+          nullptr,  // tc_table
           nullptr,  // on_demand_register_arena_dtor
           PROTOBUF_FIELD_OFFSET(DynamicMessage, cached_byte_size_),
           false,

src/google/protobuf/generated_message_bases.cc

@@ -38,34 +38,6 @@ size_t ZeroFieldsBase::ByteSizeLong() const {
   return MaybeComputeUnknownFieldsSize(0, &_impl_._cached_size_);
 }
 
-const char* ZeroFieldsBase::_InternalParse(const char* ptr,
-                                           internal::ParseContext* ctx) {
-#define CHK_(x)                       \
-  if (PROTOBUF_PREDICT_FALSE(!(x))) { \
-    goto failure;                     \
-  }
-
-  while (!ctx->Done(&ptr)) {
-    uint32_t tag;
-    ptr = internal::ReadTag(ptr, &tag);
-    if ((tag == 0) || ((tag & 7) == 4)) {
-      CHK_(ptr);
-      ctx->SetLastTag(tag);
-      goto message_done;
-    }
-    ptr = UnknownFieldParse(
-        tag, _internal_metadata_.mutable_unknown_fields<UnknownFieldSet>(), ptr,
-        ctx);
-    CHK_(ptr);
-  }  // while
-message_done:
-  return ptr;
-failure:
-  ptr = nullptr;
-  goto message_done;
-#undef CHK_
-}
-
 ::uint8_t* ZeroFieldsBase::_InternalSerialize(
     ::uint8_t* target, io::EpsCopyOutputStream* stream) const {
   if (PROTOBUF_PREDICT_FALSE(_internal_metadata_.have_unknown_fields())) {

src/google/protobuf/generated_message_bases.h

@@ -33,8 +33,6 @@ class PROTOBUF_EXPORT ZeroFieldsBase : public Message {
   bool IsInitialized() const final { return true; }
   size_t ByteSizeLong() const final;
   int GetCachedSize() const { return _impl_._cached_size_.Get(); }
-  const char* _InternalParse(const char* ptr,
-                             internal::ParseContext* ctx) final;
   ::uint8_t* _InternalSerialize(::uint8_t* target,
                                 io::EpsCopyOutputStream* stream) const final;
 

src/google/protobuf/generated_message_tctable_impl.h

@@ -382,7 +382,7 @@ class PROTOBUF_EXPORT TcParser final {
       MessageLite* msg, const char* ptr, ParseContext* ctx,
       const TcParseTableBase* tc_table) {
     return ctx->ParseLengthDelimitedInlined(ptr, [&](const char* ptr) {
-      return ParseLoopInlined(msg, ptr, ctx, tc_table);
+      return ParseLoop(msg, ptr, ctx, tc_table);
     });
   }
 
@@ -390,7 +390,7 @@ class PROTOBUF_EXPORT TcParser final {
       MessageLite* msg, const char* ptr, ParseContext* ctx,
       const TcParseTableBase* tc_table, uint32_t start_tag) {
     return ctx->ParseGroupInlined(ptr, start_tag, [&](const char* ptr) {
-      return ParseLoopInlined(msg, ptr, ctx, tc_table);
+      return ParseLoop(msg, ptr, ctx, tc_table);
     });
   }
 
@@ -428,13 +428,9 @@ class PROTOBUF_EXPORT TcParser final {
   static const char* MessageSetWireFormatParseLoopLite(
       PROTOBUF_TC_PARAM_NO_DATA_DECL);
 
-  PROTOBUF_NOINLINE
   static const char* ParseLoop(MessageLite* msg, const char* ptr,
                                ParseContext* ctx,
                                const TcParseTableBase* table);
-  static const char* ParseLoopInlined(MessageLite* msg, const char* ptr,
-                                      ParseContext* ctx,
-                                      const TcParseTableBase* table);
 
   // Functions referenced by generated fast tables (numeric types):
   //   F: fixed      V: varint     Z: zigzag
@@ -993,7 +989,7 @@ inline PROTOBUF_ALWAYS_INLINE const char* TcParser::ToParseLoop(
   return ptr;
 }
 
-inline PROTOBUF_ALWAYS_INLINE const char* TcParser::ParseLoopInlined(
+inline PROTOBUF_ALWAYS_INLINE const char* TcParser::ParseLoop(
     MessageLite* msg, const char* ptr, ParseContext* ctx,
     const TcParseTableBase* table) {
   // Note: TagDispatch uses a dispatch table at "&table->fast_entries".

src/google/protobuf/generated_message_tctable_lite.cc

@@ -73,12 +73,6 @@ const char* TcParser::GenericFallbackLite(PROTOBUF_TC_PARAM_DECL) {
 // Core fast parsing implementation:
 //////////////////////////////////////////////////////////////////////////////
 
-PROTOBUF_NOINLINE const char* TcParser::ParseLoop(
-    MessageLite* msg, const char* ptr, ParseContext* ctx,
-    const TcParseTableBase* table) {
-  return ParseLoopInlined(msg, ptr, ctx, table);
-}
-
 // On the fast path, a (matching) 1-byte tag already has the decoded value.
 static uint32_t FastDecodeTag(uint8_t coded_tag) {
   return coded_tag;
@@ -369,7 +363,7 @@ inline PROTOBUF_ALWAYS_INLINE const char* TcParser::SingularParseMessageAuxImpl(
       field = inner_table->default_instance->New(msg->GetArena());
     }
     const auto inner_loop = [&](const char* ptr) {
-      return ParseLoopInlined(field, ptr, ctx, inner_table);
+      return ParseLoop(field, ptr, ctx, inner_table);
     };
     return group_coding ? ctx->ParseGroupInlined(ptr, FastDecodeTag(saved_tag),
                                                  inner_loop)
@@ -457,7 +451,7 @@ inline PROTOBUF_ALWAYS_INLINE const char* TcParser::RepeatedParseMessageAuxImpl(
     MessageLite* submsg = field.AddMessage(default_instance);
     if (aux_is_table) {
       const auto inner_loop = [&](const char* ptr) {
-        return ParseLoopInlined(submsg, ptr, ctx, aux.table);
+        return ParseLoop(submsg, ptr, ctx, aux.table);
       };
       ptr = group_coding ? ctx->ParseGroupInlined(
                                ptr, FastDecodeTag(expected_tag), inner_loop)

src/google/protobuf/message_lite.cc

@@ -46,22 +46,9 @@
 namespace google {
 namespace protobuf {
 
-const internal::TcParseTableBase* MessageLite::GetTcParseTable() const {
-  auto* data = GetClassData();
-  ABSL_DCHECK(data != nullptr);
-
-  auto* tc_table = data->tc_table;
-  if (ABSL_PREDICT_FALSE(tc_table == nullptr)) {
-    ABSL_DCHECK(!data->is_lite);
-    return data->full().descriptor_methods->get_tc_table(*this);
-  }
-  return tc_table;
-}
-
 const char* MessageLite::_InternalParse(const char* ptr,
                                         internal::ParseContext* ctx) {
-  return internal::TcParser::ParseLoopInlined(this, ptr, ctx,
-                                              GetTcParseTable());
+  return internal::TcParser::ParseLoop(this, ptr, ctx, GetTcParseTable());
 }
 
 std::string MessageLite::GetTypeName() const {
@@ -169,11 +156,12 @@ namespace internal {
 
 template <bool aliasing>
 bool MergeFromImpl(absl::string_view input, MessageLite* msg,
+                   const internal::TcParseTableBase* tc_table,
                    MessageLite::ParseFlags parse_flags) {
   const char* ptr;
   internal::ParseContext ctx(io::CodedInputStream::GetDefaultRecursionLimit(),
                              aliasing, &ptr, input);
-  ptr = msg->_InternalParse(ptr, &ctx);
+  ptr = internal::TcParser::ParseLoop(msg, ptr, &ctx, tc_table);
   // ctx has an explicit limit set (length of string_view).
   if (PROTOBUF_PREDICT_TRUE(ptr && ctx.EndedAtLimit())) {
     return CheckFieldPresence(ctx, *msg, parse_flags);
@@ -183,11 +171,12 @@ bool MergeFromImpl(absl::string_view input, MessageLite* msg,
 
 template <bool aliasing>
 bool MergeFromImpl(io::ZeroCopyInputStream* input, MessageLite* msg,
+                   const internal::TcParseTableBase* tc_table,
                    MessageLite::ParseFlags parse_flags) {
   const char* ptr;
   internal::ParseContext ctx(io::CodedInputStream::GetDefaultRecursionLimit(),
                              aliasing, &ptr, input);
-  ptr = msg->_InternalParse(ptr, &ctx);
+  ptr = internal::TcParser::ParseLoop(msg, ptr, &ctx, tc_table);
   // ctx has no explicit limit (hence we end on end of stream)
   if (PROTOBUF_PREDICT_TRUE(ptr && ctx.EndedAtEndOfStream())) {
     return CheckFieldPresence(ctx, *msg, parse_flags);
@@ -197,11 +186,12 @@ bool MergeFromImpl(io::ZeroCopyInputStream* input, MessageLite* msg,
 
 template <bool aliasing>
 bool MergeFromImpl(BoundedZCIS input, MessageLite* msg,
+                   const internal::TcParseTableBase* tc_table,
                    MessageLite::ParseFlags parse_flags) {
   const char* ptr;
   internal::ParseContext ctx(io::CodedInputStream::GetDefaultRecursionLimit(),
                              aliasing, &ptr, input.zcis, input.limit);
-  ptr = msg->_InternalParse(ptr, &ctx);
+  ptr = internal::TcParser::ParseLoop(msg, ptr, &ctx, tc_table);
   if (PROTOBUF_PREDICT_FALSE(!ptr)) return false;
   ctx.BackUp(ptr);
   if (PROTOBUF_PREDICT_TRUE(ctx.EndedAtLimit())) {
@@ -211,18 +201,24 @@ bool MergeFromImpl(BoundedZCIS input, MessageLite* msg,
 }
 
 template bool MergeFromImpl<false>(absl::string_view input, MessageLite* msg,
+                                   const internal::TcParseTableBase* tc_table,
                                    MessageLite::ParseFlags parse_flags);
 template bool MergeFromImpl<true>(absl::string_view input, MessageLite* msg,
+                                  const internal::TcParseTableBase* tc_table,
                                   MessageLite::ParseFlags parse_flags);
 template bool MergeFromImpl<false>(io::ZeroCopyInputStream* input,
                                    MessageLite* msg,
+                                   const internal::TcParseTableBase* tc_table,
                                    MessageLite::ParseFlags parse_flags);
 template bool MergeFromImpl<true>(io::ZeroCopyInputStream* input,
                                   MessageLite* msg,
+                                  const internal::TcParseTableBase* tc_table,
                                   MessageLite::ParseFlags parse_flags);
 template bool MergeFromImpl<false>(BoundedZCIS input, MessageLite* msg,
+                                   const internal::TcParseTableBase* tc_table,
                                    MessageLite::ParseFlags parse_flags);
 template bool MergeFromImpl<true>(BoundedZCIS input, MessageLite* msg,
+                                  const internal::TcParseTableBase* tc_table,
                                   MessageLite::ParseFlags parse_flags);
 
 }  // namespace internal
@@ -267,7 +263,7 @@ bool MessageLite::MergeFromImpl(io::CodedInputStream* input,
   ctx.TrackCorrectEnding();
   ctx.data().pool = input->GetExtensionPool();
   ctx.data().factory = input->GetExtensionFactory();
-  ptr = _InternalParse(ptr, &ctx);
+  ptr = internal::TcParser::ParseLoop(this, ptr, &ctx, GetTcParseTable());
   if (PROTOBUF_PREDICT_FALSE(!ptr)) return false;
   ctx.BackUp(ptr);
   if (!ctx.EndedAtEndOfStream()) {
@@ -374,13 +370,14 @@ template <>
 struct SourceWrapper<absl::Cord> {
   explicit SourceWrapper(const absl::Cord* c) : cord(c) {}
   template <bool alias>
-  bool MergeInto(MessageLite* msg, MessageLite::ParseFlags parse_flags) const {
+  bool MergeInto(MessageLite* msg, const internal::TcParseTableBase* tc_table,
+                 MessageLite::ParseFlags parse_flags) const {
     absl::optional<absl::string_view> flat = cord->TryFlat();
     if (flat && flat->size() <= ParseContext::kMaxCordBytesToCopy) {
-      return MergeFromImpl<alias>(*flat, msg, parse_flags);
+      return MergeFromImpl<alias>(*flat, msg, tc_table, parse_flags);
     } else {
       io::CordInputStream input(cord);
-      return MergeFromImpl<alias>(&input, msg, parse_flags);
+      return MergeFromImpl<alias>(&input, msg, tc_table, parse_flags);
     }
   }
 

src/google/protobuf/message_lite.h

@@ -496,8 +496,7 @@ class PROTOBUF_EXPORT MessageLite {
   // method.)
   int GetCachedSize() const;
 
-  virtual const char* _InternalParse(const char* ptr,
-                                     internal::ParseContext* ctx);
+  const char* _InternalParse(const char* ptr, internal::ParseContext* ctx);
 
   void OnDemandRegisterArenaDtor(Arena* arena);
 
@@ -517,7 +516,17 @@ class PROTOBUF_EXPORT MessageLite {
     return static_cast<T*>(Arena::CopyConstruct<T>(arena, &from));
   }
 
-  const internal::TcParseTableBase* GetTcParseTable() const;
+  const internal::TcParseTableBase* GetTcParseTable() const {
+    auto* data = GetClassData();
+    ABSL_DCHECK(data != nullptr);
+
+    auto* tc_table = data->tc_table;
+    if (ABSL_PREDICT_FALSE(tc_table == nullptr)) {
+      ABSL_DCHECK(!data->is_lite);
+      return data->full().descriptor_methods->get_tc_table(*this);
+    }
+    return tc_table;
+  }
 
   inline explicit MessageLite(Arena* arena) : _internal_metadata_(arena) {}
 
@@ -705,22 +714,28 @@ namespace internal {
 
 template <bool alias>
 bool MergeFromImpl(absl::string_view input, MessageLite* msg,
+                   const internal::TcParseTableBase* tc_table,
                    MessageLite::ParseFlags parse_flags);
 extern template PROTOBUF_EXPORT_TEMPLATE_DECLARE bool MergeFromImpl<false>(
     absl::string_view input, MessageLite* msg,
+    const internal::TcParseTableBase* tc_table,
     MessageLite::ParseFlags parse_flags);
 extern template PROTOBUF_EXPORT_TEMPLATE_DECLARE bool MergeFromImpl<true>(
     absl::string_view input, MessageLite* msg,
+    const internal::TcParseTableBase* tc_table,
     MessageLite::ParseFlags parse_flags);
 
 template <bool alias>
 bool MergeFromImpl(io::ZeroCopyInputStream* input, MessageLite* msg,
+                   const internal::TcParseTableBase* tc_table,
                    MessageLite::ParseFlags parse_flags);
 extern template PROTOBUF_EXPORT_TEMPLATE_DECLARE bool MergeFromImpl<false>(
     io::ZeroCopyInputStream* input, MessageLite* msg,
+    const internal::TcParseTableBase* tc_table,
     MessageLite::ParseFlags parse_flags);
 extern template PROTOBUF_EXPORT_TEMPLATE_DECLARE bool MergeFromImpl<true>(
     io::ZeroCopyInputStream* input, MessageLite* msg,
+    const internal::TcParseTableBase* tc_table,
     MessageLite::ParseFlags parse_flags);
 
 struct BoundedZCIS {
@@ -730,19 +745,25 @@ struct BoundedZCIS {
 
 template <bool alias>
 bool MergeFromImpl(BoundedZCIS input, MessageLite* msg,
+                   const internal::TcParseTableBase* tc_table,
                    MessageLite::ParseFlags parse_flags);
 extern template PROTOBUF_EXPORT_TEMPLATE_DECLARE bool MergeFromImpl<false>(
-    BoundedZCIS input, MessageLite* msg, MessageLite::ParseFlags parse_flags);
+    BoundedZCIS input, MessageLite* msg,
+    const internal::TcParseTableBase* tc_table,
+    MessageLite::ParseFlags parse_flags);
 extern template PROTOBUF_EXPORT_TEMPLATE_DECLARE bool MergeFromImpl<true>(
-    BoundedZCIS input, MessageLite* msg, MessageLite::ParseFlags parse_flags);
+    BoundedZCIS input, MessageLite* msg,
+    const internal::TcParseTableBase* tc_table,
+    MessageLite::ParseFlags parse_flags);
 
 template <typename T>
 struct SourceWrapper;
 
 template <bool alias, typename T>
 bool MergeFromImpl(const SourceWrapper<T>& input, MessageLite* msg,
+                   const internal::TcParseTableBase* tc_table,
                    MessageLite::ParseFlags parse_flags) {
-  return input.template MergeInto<alias>(msg, parse_flags);
+  return input.template MergeInto<alias>(msg, tc_table, parse_flags);
 }
 
 }  // namespace internal
@@ -751,7 +772,9 @@ template <MessageLite::ParseFlags flags, typename T>
 bool MessageLite::ParseFrom(const T& input) {
   if (flags & kParse) Clear();
   constexpr bool alias = (flags & kMergeWithAliasing) != 0;
-  return internal::MergeFromImpl<alias>(input, this, flags);
+  const internal::TcParseTableBase* tc_table;
+  PROTOBUF_ALWAYS_INLINE_CALL tc_table = GetTcParseTable();
+  return internal::MergeFromImpl<alias>(input, this, tc_table, flags);
 }
 
 // ===================================================================

src/google/protobuf/parse_context.h

@@ -24,7 +24,6 @@
 #include "google/protobuf/arena.h"
 #include "google/protobuf/arenastring.h"
 #include "google/protobuf/endian.h"
-#include "google/protobuf/implicit_weak_message.h"
 #include "google/protobuf/inlined_string_field.h"
 #include "google/protobuf/io/coded_stream.h"
 #include "google/protobuf/io/zero_copy_stream.h"
@@ -507,6 +506,24 @@ class PROTOBUF_EXPORT ParseContext : public EpsCopyInputStream {
                                                    uint32_t start_tag,
                                                    const Func& func);
 
+  // Use a template to avoid the strong dep into TcParser. All callers will have
+  // the dep.
+  template <typename Parser = TcParser>
+  PROTOBUF_ALWAYS_INLINE const char* ParseMessage(
+      MessageLite* msg, const TcParseTableBase* tc_table, const char* ptr) {
+    return ParseLengthDelimitedInlined(ptr, [&](const char* ptr) {
+      return Parser::ParseLoop(msg, ptr, this, tc_table);
+    });
+  }
+  template <typename Parser = TcParser>
+  PROTOBUF_ALWAYS_INLINE const char* ParseGroup(
+      MessageLite* msg, const TcParseTableBase* tc_table, const char* ptr,
+      uint32_t start_tag) {
+    return ParseGroupInlined(ptr, start_tag, [&](const char* ptr) {
+      return Parser::ParseLoop(msg, ptr, this, tc_table);
+    });
+  }
+
   PROTOBUF_NODISCARD PROTOBUF_NDEBUG_INLINE const char* ParseGroup(
       MessageLite* msg, const char* ptr, uint32_t tag) {
     if (--depth_ < 0) return nullptr;

src/google/protobuf/port.h

@@ -23,6 +23,7 @@
 
 
 #include "absl/base/config.h"
+#include "absl/base/prefetch.h"
 #include "absl/meta/type_traits.h"
 #include "absl/strings/string_view.h"
 #include "absl/types/optional.h"
@@ -302,6 +303,12 @@ inline PROTOBUF_ALWAYS_INLINE void TSanRead(const void*) {}
 inline PROTOBUF_ALWAYS_INLINE void TSanWrite(const void*) {}
 #endif
 
+// This trampoline allows calling from codegen without needing a #include to
+// absl. It simplifies IWYU and deps.
+inline void PrefetchToLocalCache(const void* ptr) {
+  absl::PrefetchToLocalCache(ptr);
+}
+
 }  // namespace internal
 }  // namespace protobuf
 }  // namespace google