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 @@ -4178,7 +4178,15 @@ void MessageGenerator::GenerateClassData(io::Printer* p) {

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  $pbi$::ClassDataFull $classname$_class_data_ =

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  $classname$::InternalGenerateClassData_();

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-
  const $pbi$::ClassData* $nonnull$ $classname$::GetClassData() const {

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  //~ This function needs to be marked as weak to avoid significantly

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  //~ slowing down compilation times. This breaks up LLVM's SCC

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  //~ in the .pb.cc translation units. Large translation units see a

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  //~ reduction of roughly 50% of walltime for optimized builds.

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  //~ Without the weak attribute all the messages in the file, including

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  //~ all the vtables and everything they use become part of the same

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  //~ SCC.

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  PROTOBUF_ATTRIBUTE_WEAK const $pbi$::ClassData* $nonnull$

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  $classname$::GetClassData() const {

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  $pin_weak_descriptor$;

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  $pbi$::PrefetchToLocalCache(&$classname$_class_data_);

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  $pbi$::PrefetchToLocalCache($classname$_class_data_.tc_table);


 @@ -4221,7 +4229,15 @@ void MessageGenerator::GenerateClassData(io::Printer* p) {

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  const $pbi$::ClassDataLite<$type_size$> $classname$_class_data_ =

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  $classname$::InternalGenerateClassData_();

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-
  const $pbi$::ClassData* $nonnull$ $classname$::GetClassData() const {

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  //~ This function needs to be marked as weak to avoid significantly

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  //~ slowing down compilation times. This breaks up LLVM's SCC

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  //~ in the .pb.cc translation units. Large translation units see a

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+
  //~ reduction of roughly 50% of walltime for optimized builds.

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  //~ Without the weak attribute all the messages in the file, including

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  //~ all the vtables and everything they use become part of the same

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  //~ SCC.

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  PROTOBUF_ATTRIBUTE_WEAK const $pbi$::ClassData* $nonnull$

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  $classname$::GetClassData() const {

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  return $classname$_class_data_.base();

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  )cc");

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