Auto-generate files after cl/584925599

src/google/protobuf/any.pb.cc

@@ -91,13 +91,14 @@ const char descriptor_table_protodef_google_2fprotobuf_2fany_2eproto[] ABSL_ATTR
     "anypb\242\002\003GPB\252\002\036Google.Protobuf.WellKnownT"
     "ypesb\006proto3"
 };
-PROTOBUF_CONSTINIT
+static ::absl::once_flag descriptor_table_google_2fprotobuf_2fany_2eproto_once;
-PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 const ::_pbi::DescriptorTable
+const ::_pbi::DescriptorTable descriptor_table_google_2fprotobuf_2fany_2eproto = {
-    descriptor_table_google_2fprotobuf_2fany_2eproto = {
+    false,
     false,
     212,
     descriptor_table_protodef_google_2fprotobuf_2fany_2eproto,
     "google/protobuf/any.proto",
+    &descriptor_table_google_2fprotobuf_2fany_2eproto_once,
     nullptr,
     0,
     1,
@@ -109,6 +110,17 @@ PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 const ::_pbi::DescriptorTable
     file_level_service_descriptors_google_2fprotobuf_2fany_2eproto,
 };
 
+// This function exists to be marked as weak.
+// It can significantly speed up compilation by breaking up LLVM's SCC
+// in the .pb.cc translation units. Large translation units see a
+// reduction of more than 35% of walltime for optimized builds. Without
+// the weak attribute all the messages in the file, including all the
+// vtables and everything they use become part of the same SCC through
+// a cycle like:
+// GetMetadata -> descriptor table -> default instances ->
+//   vtables -> GetMetadata
+// By adding a weak function here we break the connection from the
+// individual vtables back into the descriptor table.
 PROTOBUF_ATTRIBUTE_WEAK const ::_pbi::DescriptorTable* descriptor_table_google_2fprotobuf_2fany_2eproto_getter() {
   return &descriptor_table_google_2fprotobuf_2fany_2eproto;
 }
@@ -349,7 +361,7 @@ void Any::InternalSwap(Any* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata Any::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2fany_2eproto_getter, &descriptor_table_google_2fprotobuf_2fany_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2fany_2eproto_getter, &descriptor_table_google_2fprotobuf_2fany_2eproto_once,
       file_level_metadata_google_2fprotobuf_2fany_2eproto[0]);
 }
 // @@protoc_insertion_point(namespace_scope)

src/google/protobuf/api.pb.cc

@@ -205,13 +205,14 @@ static const ::_pbi::DescriptorTable* const descriptor_table_google_2fprotobuf_2
         &::descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto,
         &::descriptor_table_google_2fprotobuf_2ftype_2eproto,
 };
-PROTOBUF_CONSTINIT
+static ::absl::once_flag descriptor_table_google_2fprotobuf_2fapi_2eproto_once;
-PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 const ::_pbi::DescriptorTable
+const ::_pbi::DescriptorTable descriptor_table_google_2fprotobuf_2fapi_2eproto = {
-    descriptor_table_google_2fprotobuf_2fapi_2eproto = {
+    false,
     false,
     751,
     descriptor_table_protodef_google_2fprotobuf_2fapi_2eproto,
     "google/protobuf/api.proto",
+    &descriptor_table_google_2fprotobuf_2fapi_2eproto_once,
     descriptor_table_google_2fprotobuf_2fapi_2eproto_deps,
     2,
     3,
@@ -223,6 +224,17 @@ PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 const ::_pbi::DescriptorTable
     file_level_service_descriptors_google_2fprotobuf_2fapi_2eproto,
 };
 
+// This function exists to be marked as weak.
+// It can significantly speed up compilation by breaking up LLVM's SCC
+// in the .pb.cc translation units. Large translation units see a
+// reduction of more than 35% of walltime for optimized builds. Without
+// the weak attribute all the messages in the file, including all the
+// vtables and everything they use become part of the same SCC through
+// a cycle like:
+// GetMetadata -> descriptor table -> default instances ->
+//   vtables -> GetMetadata
+// By adding a weak function here we break the connection from the
+// individual vtables back into the descriptor table.
 PROTOBUF_ATTRIBUTE_WEAK const ::_pbi::DescriptorTable* descriptor_table_google_2fprotobuf_2fapi_2eproto_getter() {
   return &descriptor_table_google_2fprotobuf_2fapi_2eproto;
 }
@@ -626,7 +638,7 @@ void Api::InternalSwap(Api* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata Api::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2fapi_2eproto_getter, &descriptor_table_google_2fprotobuf_2fapi_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2fapi_2eproto_getter, &descriptor_table_google_2fprotobuf_2fapi_2eproto_once,
       file_level_metadata_google_2fprotobuf_2fapi_2eproto[0]);
 }
 // ===================================================================
@@ -995,7 +1007,7 @@ void Method::InternalSwap(Method* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata Method::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2fapi_2eproto_getter, &descriptor_table_google_2fprotobuf_2fapi_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2fapi_2eproto_getter, &descriptor_table_google_2fprotobuf_2fapi_2eproto_once,
       file_level_metadata_google_2fprotobuf_2fapi_2eproto[1]);
 }
 // ===================================================================
@@ -1218,7 +1230,7 @@ void Mixin::InternalSwap(Mixin* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata Mixin::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2fapi_2eproto_getter, &descriptor_table_google_2fprotobuf_2fapi_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2fapi_2eproto_getter, &descriptor_table_google_2fprotobuf_2fapi_2eproto_once,
       file_level_metadata_google_2fprotobuf_2fapi_2eproto[2]);
 }
 // @@protoc_insertion_point(namespace_scope)

src/google/protobuf/duration.pb.cc

@@ -82,13 +82,14 @@ const char descriptor_table_protodef_google_2fprotobuf_2fduration_2eproto[] ABSL
     "uf/types/known/durationpb\370\001\001\242\002\003GPB\252\002\036Goo"
     "gle.Protobuf.WellKnownTypesb\006proto3"
 };
-PROTOBUF_CONSTINIT
+static ::absl::once_flag descriptor_table_google_2fprotobuf_2fduration_2eproto_once;
-PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 const ::_pbi::DescriptorTable
+const ::_pbi::DescriptorTable descriptor_table_google_2fprotobuf_2fduration_2eproto = {
-    descriptor_table_google_2fprotobuf_2fduration_2eproto = {
+    false,
     false,
     235,
     descriptor_table_protodef_google_2fprotobuf_2fduration_2eproto,
     "google/protobuf/duration.proto",
+    &descriptor_table_google_2fprotobuf_2fduration_2eproto_once,
     nullptr,
     0,
     1,
@@ -100,6 +101,17 @@ PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 const ::_pbi::DescriptorTable
     file_level_service_descriptors_google_2fprotobuf_2fduration_2eproto,
 };
 
+// This function exists to be marked as weak.
+// It can significantly speed up compilation by breaking up LLVM's SCC
+// in the .pb.cc translation units. Large translation units see a
+// reduction of more than 35% of walltime for optimized builds. Without
+// the weak attribute all the messages in the file, including all the
+// vtables and everything they use become part of the same SCC through
+// a cycle like:
+// GetMetadata -> descriptor table -> default instances ->
+//   vtables -> GetMetadata
+// By adding a weak function here we break the connection from the
+// individual vtables back into the descriptor table.
 PROTOBUF_ATTRIBUTE_WEAK const ::_pbi::DescriptorTable* descriptor_table_google_2fprotobuf_2fduration_2eproto_getter() {
   return &descriptor_table_google_2fprotobuf_2fduration_2eproto;
 }
@@ -313,7 +325,7 @@ void Duration::InternalSwap(Duration* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata Duration::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2fduration_2eproto_getter, &descriptor_table_google_2fprotobuf_2fduration_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2fduration_2eproto_getter, &descriptor_table_google_2fprotobuf_2fduration_2eproto_once,
       file_level_metadata_google_2fprotobuf_2fduration_2eproto[0]);
 }
 // @@protoc_insertion_point(namespace_scope)

src/google/protobuf/empty.pb.cc

@@ -71,13 +71,14 @@ const char descriptor_table_protodef_google_2fprotobuf_2fempty_2eproto[] ABSL_AT
     "/types/known/emptypb\370\001\001\242\002\003GPB\252\002\036Google.P"
     "rotobuf.WellKnownTypesb\006proto3"
 };
-PROTOBUF_CONSTINIT
+static ::absl::once_flag descriptor_table_google_2fprotobuf_2fempty_2eproto_once;
-PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 const ::_pbi::DescriptorTable
+const ::_pbi::DescriptorTable descriptor_table_google_2fprotobuf_2fempty_2eproto = {
-    descriptor_table_google_2fprotobuf_2fempty_2eproto = {
+    false,
     false,
     190,
     descriptor_table_protodef_google_2fprotobuf_2fempty_2eproto,
     "google/protobuf/empty.proto",
+    &descriptor_table_google_2fprotobuf_2fempty_2eproto_once,
     nullptr,
     0,
     1,
@@ -89,6 +90,17 @@ PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 const ::_pbi::DescriptorTable
     file_level_service_descriptors_google_2fprotobuf_2fempty_2eproto,
 };
 
+// This function exists to be marked as weak.
+// It can significantly speed up compilation by breaking up LLVM's SCC
+// in the .pb.cc translation units. Large translation units see a
+// reduction of more than 35% of walltime for optimized builds. Without
+// the weak attribute all the messages in the file, including all the
+// vtables and everything they use become part of the same SCC through
+// a cycle like:
+// GetMetadata -> descriptor table -> default instances ->
+//   vtables -> GetMetadata
+// By adding a weak function here we break the connection from the
+// individual vtables back into the descriptor table.
 PROTOBUF_ATTRIBUTE_WEAK const ::_pbi::DescriptorTable* descriptor_table_google_2fprotobuf_2fempty_2eproto_getter() {
   return &descriptor_table_google_2fprotobuf_2fempty_2eproto;
 }
@@ -129,7 +141,7 @@ Empty::Empty(
 
 ::google::protobuf::Metadata Empty::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2fempty_2eproto_getter, &descriptor_table_google_2fprotobuf_2fempty_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2fempty_2eproto_getter, &descriptor_table_google_2fprotobuf_2fempty_2eproto_once,
       file_level_metadata_google_2fprotobuf_2fempty_2eproto[0]);
 }
 // @@protoc_insertion_point(namespace_scope)

src/google/protobuf/field_mask.pb.cc

@@ -80,13 +80,14 @@ const char descriptor_table_protodef_google_2fprotobuf_2ffield_5fmask_2eproto[]
     "n/fieldmaskpb\370\001\001\242\002\003GPB\252\002\036Google.Protobuf"
     ".WellKnownTypesb\006proto3"
 };
-PROTOBUF_CONSTINIT
+static ::absl::once_flag descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto_once;
-PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 const ::_pbi::DescriptorTable
+const ::_pbi::DescriptorTable descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto = {
-    descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto = {
+    false,
     false,
     223,
     descriptor_table_protodef_google_2fprotobuf_2ffield_5fmask_2eproto,
     "google/protobuf/field_mask.proto",
+    &descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto_once,
     nullptr,
     0,
     1,
@@ -98,6 +99,17 @@ PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 const ::_pbi::DescriptorTable
     file_level_service_descriptors_google_2fprotobuf_2ffield_5fmask_2eproto,
 };
 
+// This function exists to be marked as weak.
+// It can significantly speed up compilation by breaking up LLVM's SCC
+// in the .pb.cc translation units. Large translation units see a
+// reduction of more than 35% of walltime for optimized builds. Without
+// the weak attribute all the messages in the file, including all the
+// vtables and everything they use become part of the same SCC through
+// a cycle like:
+// GetMetadata -> descriptor table -> default instances ->
+//   vtables -> GetMetadata
+// By adding a weak function here we break the connection from the
+// individual vtables back into the descriptor table.
 PROTOBUF_ATTRIBUTE_WEAK const ::_pbi::DescriptorTable* descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto_getter() {
   return &descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto;
 }
@@ -292,7 +304,7 @@ void FieldMask::InternalSwap(FieldMask* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata FieldMask::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto_getter, &descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto_getter, &descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto_once,
       file_level_metadata_google_2fprotobuf_2ffield_5fmask_2eproto[0]);
 }
 // @@protoc_insertion_point(namespace_scope)

src/google/protobuf/source_context.pb.cc

@@ -82,13 +82,14 @@ const char descriptor_table_protodef_google_2fprotobuf_2fsource_5fcontext_2eprot
     "tobuf/types/known/sourcecontextpb\242\002\003GPB\252"
     "\002\036Google.Protobuf.WellKnownTypesb\006proto3"
 };
-PROTOBUF_CONSTINIT
+static ::absl::once_flag descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto_once;
-PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 const ::_pbi::DescriptorTable
+const ::_pbi::DescriptorTable descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto = {
-    descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto = {
+    false,
     false,
     240,
     descriptor_table_protodef_google_2fprotobuf_2fsource_5fcontext_2eproto,
     "google/protobuf/source_context.proto",
+    &descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto_once,
     nullptr,
     0,
     1,
@@ -100,6 +101,17 @@ PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 const ::_pbi::DescriptorTable
     file_level_service_descriptors_google_2fprotobuf_2fsource_5fcontext_2eproto,
 };
 
+// This function exists to be marked as weak.
+// It can significantly speed up compilation by breaking up LLVM's SCC
+// in the .pb.cc translation units. Large translation units see a
+// reduction of more than 35% of walltime for optimized builds. Without
+// the weak attribute all the messages in the file, including all the
+// vtables and everything they use become part of the same SCC through
+// a cycle like:
+// GetMetadata -> descriptor table -> default instances ->
+//   vtables -> GetMetadata
+// By adding a weak function here we break the connection from the
+// individual vtables back into the descriptor table.
 PROTOBUF_ATTRIBUTE_WEAK const ::_pbi::DescriptorTable* descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto_getter() {
   return &descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto;
 }
@@ -299,7 +311,7 @@ void SourceContext::InternalSwap(SourceContext* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata SourceContext::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto_getter, &descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto_getter, &descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto_once,
       file_level_metadata_google_2fprotobuf_2fsource_5fcontext_2eproto[0]);
 }
 // @@protoc_insertion_point(namespace_scope)

src/google/protobuf/struct.pb.cc

@@ -182,13 +182,14 @@ const char descriptor_table_protodef_google_2fprotobuf_2fstruct_2eproto[] ABSL_A
     "rotobuf/types/known/structpb\370\001\001\242\002\003GPB\252\002\036"
     "Google.Protobuf.WellKnownTypesb\006proto3"
 };
-PROTOBUF_CONSTINIT
+static ::absl::once_flag descriptor_table_google_2fprotobuf_2fstruct_2eproto_once;
-PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 const ::_pbi::DescriptorTable
+const ::_pbi::DescriptorTable descriptor_table_google_2fprotobuf_2fstruct_2eproto = {
-    descriptor_table_google_2fprotobuf_2fstruct_2eproto = {
+    false,
     false,
     638,
     descriptor_table_protodef_google_2fprotobuf_2fstruct_2eproto,
     "google/protobuf/struct.proto",
+    &descriptor_table_google_2fprotobuf_2fstruct_2eproto_once,
     nullptr,
     0,
     4,
@@ -200,6 +201,17 @@ PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 const ::_pbi::DescriptorTable
     file_level_service_descriptors_google_2fprotobuf_2fstruct_2eproto,
 };
 
+// This function exists to be marked as weak.
+// It can significantly speed up compilation by breaking up LLVM's SCC
+// in the .pb.cc translation units. Large translation units see a
+// reduction of more than 35% of walltime for optimized builds. Without
+// the weak attribute all the messages in the file, including all the
+// vtables and everything they use become part of the same SCC through
+// a cycle like:
+// GetMetadata -> descriptor table -> default instances ->
+//   vtables -> GetMetadata
+// By adding a weak function here we break the connection from the
+// individual vtables back into the descriptor table.
 PROTOBUF_ATTRIBUTE_WEAK const ::_pbi::DescriptorTable* descriptor_table_google_2fprotobuf_2fstruct_2eproto_getter() {
   return &descriptor_table_google_2fprotobuf_2fstruct_2eproto;
 }
@@ -224,7 +236,7 @@ Struct_FieldsEntry_DoNotUse::Struct_FieldsEntry_DoNotUse(::google::protobuf::Are
     : SuperType(arena) {}
 ::google::protobuf::Metadata Struct_FieldsEntry_DoNotUse::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2fstruct_2eproto_getter, &descriptor_table_google_2fprotobuf_2fstruct_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2fstruct_2eproto_getter, &descriptor_table_google_2fprotobuf_2fstruct_2eproto_once,
       file_level_metadata_google_2fprotobuf_2fstruct_2eproto[0]);
 }
 // ===================================================================
@@ -435,7 +447,7 @@ void Struct::InternalSwap(Struct* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata Struct::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2fstruct_2eproto_getter, &descriptor_table_google_2fprotobuf_2fstruct_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2fstruct_2eproto_getter, &descriptor_table_google_2fprotobuf_2fstruct_2eproto_once,
       file_level_metadata_google_2fprotobuf_2fstruct_2eproto[1]);
 }
 // ===================================================================
@@ -828,7 +840,7 @@ void Value::InternalSwap(Value* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata Value::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2fstruct_2eproto_getter, &descriptor_table_google_2fprotobuf_2fstruct_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2fstruct_2eproto_getter, &descriptor_table_google_2fprotobuf_2fstruct_2eproto_once,
       file_level_metadata_google_2fprotobuf_2fstruct_2eproto[2]);
 }
 // ===================================================================
@@ -1015,7 +1027,7 @@ void ListValue::InternalSwap(ListValue* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata ListValue::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2fstruct_2eproto_getter, &descriptor_table_google_2fprotobuf_2fstruct_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2fstruct_2eproto_getter, &descriptor_table_google_2fprotobuf_2fstruct_2eproto_once,
       file_level_metadata_google_2fprotobuf_2fstruct_2eproto[3]);
 }
 // @@protoc_insertion_point(namespace_scope)

src/google/protobuf/timestamp.pb.cc

@@ -82,13 +82,14 @@ const char descriptor_table_protodef_google_2fprotobuf_2ftimestamp_2eproto[] ABS
     "tobuf/types/known/timestamppb\370\001\001\242\002\003GPB\252\002"
     "\036Google.Protobuf.WellKnownTypesb\006proto3"
 };
-PROTOBUF_CONSTINIT
+static ::absl::once_flag descriptor_table_google_2fprotobuf_2ftimestamp_2eproto_once;
-PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 const ::_pbi::DescriptorTable
+const ::_pbi::DescriptorTable descriptor_table_google_2fprotobuf_2ftimestamp_2eproto = {
-    descriptor_table_google_2fprotobuf_2ftimestamp_2eproto = {
+    false,
     false,
     239,
     descriptor_table_protodef_google_2fprotobuf_2ftimestamp_2eproto,
     "google/protobuf/timestamp.proto",
+    &descriptor_table_google_2fprotobuf_2ftimestamp_2eproto_once,
     nullptr,
     0,
     1,
@@ -100,6 +101,17 @@ PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 const ::_pbi::DescriptorTable
     file_level_service_descriptors_google_2fprotobuf_2ftimestamp_2eproto,
 };
 
+// This function exists to be marked as weak.
+// It can significantly speed up compilation by breaking up LLVM's SCC
+// in the .pb.cc translation units. Large translation units see a
+// reduction of more than 35% of walltime for optimized builds. Without
+// the weak attribute all the messages in the file, including all the
+// vtables and everything they use become part of the same SCC through
+// a cycle like:
+// GetMetadata -> descriptor table -> default instances ->
+//   vtables -> GetMetadata
+// By adding a weak function here we break the connection from the
+// individual vtables back into the descriptor table.
 PROTOBUF_ATTRIBUTE_WEAK const ::_pbi::DescriptorTable* descriptor_table_google_2fprotobuf_2ftimestamp_2eproto_getter() {
   return &descriptor_table_google_2fprotobuf_2ftimestamp_2eproto;
 }
@@ -313,7 +325,7 @@ void Timestamp::InternalSwap(Timestamp* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata Timestamp::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2ftimestamp_2eproto_getter, &descriptor_table_google_2fprotobuf_2ftimestamp_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2ftimestamp_2eproto_getter, &descriptor_table_google_2fprotobuf_2ftimestamp_2eproto_once,
       file_level_metadata_google_2fprotobuf_2ftimestamp_2eproto[0]);
 }
 // @@protoc_insertion_point(namespace_scope)

src/google/protobuf/type.pb.cc

@@ -321,13 +321,14 @@ static const ::_pbi::DescriptorTable* const descriptor_table_google_2fprotobuf_2
         &::descriptor_table_google_2fprotobuf_2fany_2eproto,
         &::descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto,
 };
-PROTOBUF_CONSTINIT
+static ::absl::once_flag descriptor_table_google_2fprotobuf_2ftype_2eproto_once;
-PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 const ::_pbi::DescriptorTable
+const ::_pbi::DescriptorTable descriptor_table_google_2fprotobuf_2ftype_2eproto = {
-    descriptor_table_google_2fprotobuf_2ftype_2eproto = {
+    false,
     false,
     1647,
     descriptor_table_protodef_google_2fprotobuf_2ftype_2eproto,
     "google/protobuf/type.proto",
+    &descriptor_table_google_2fprotobuf_2ftype_2eproto_once,
     descriptor_table_google_2fprotobuf_2ftype_2eproto_deps,
     2,
     5,
@@ -339,6 +340,17 @@ PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 const ::_pbi::DescriptorTable
     file_level_service_descriptors_google_2fprotobuf_2ftype_2eproto,
 };
 
+// This function exists to be marked as weak.
+// It can significantly speed up compilation by breaking up LLVM's SCC
+// in the .pb.cc translation units. Large translation units see a
+// reduction of more than 35% of walltime for optimized builds. Without
+// the weak attribute all the messages in the file, including all the
+// vtables and everything they use become part of the same SCC through
+// a cycle like:
+// GetMetadata -> descriptor table -> default instances ->
+//   vtables -> GetMetadata
+// By adding a weak function here we break the connection from the
+// individual vtables back into the descriptor table.
 PROTOBUF_ATTRIBUTE_WEAK const ::_pbi::DescriptorTable* descriptor_table_google_2fprotobuf_2ftype_2eproto_getter() {
   return &descriptor_table_google_2fprotobuf_2ftype_2eproto;
 }
@@ -805,7 +817,7 @@ void Type::InternalSwap(Type* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata Type::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2ftype_2eproto_getter, &descriptor_table_google_2fprotobuf_2ftype_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2ftype_2eproto_getter, &descriptor_table_google_2fprotobuf_2ftype_2eproto_once,
       file_level_metadata_google_2fprotobuf_2ftype_2eproto[0]);
 }
 // ===================================================================
@@ -1249,7 +1261,7 @@ void Field::InternalSwap(Field* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata Field::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2ftype_2eproto_getter, &descriptor_table_google_2fprotobuf_2ftype_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2ftype_2eproto_getter, &descriptor_table_google_2fprotobuf_2ftype_2eproto_once,
       file_level_metadata_google_2fprotobuf_2ftype_2eproto[1]);
 }
 // ===================================================================
@@ -1617,7 +1629,7 @@ void Enum::InternalSwap(Enum* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata Enum::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2ftype_2eproto_getter, &descriptor_table_google_2fprotobuf_2ftype_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2ftype_2eproto_getter, &descriptor_table_google_2fprotobuf_2ftype_2eproto_once,
       file_level_metadata_google_2fprotobuf_2ftype_2eproto[2]);
 }
 // ===================================================================
@@ -1864,7 +1876,7 @@ void EnumValue::InternalSwap(EnumValue* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata EnumValue::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2ftype_2eproto_getter, &descriptor_table_google_2fprotobuf_2ftype_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2ftype_2eproto_getter, &descriptor_table_google_2fprotobuf_2ftype_2eproto_once,
       file_level_metadata_google_2fprotobuf_2ftype_2eproto[3]);
 }
 // ===================================================================
@@ -2113,7 +2125,7 @@ void Option::InternalSwap(Option* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata Option::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2ftype_2eproto_getter, &descriptor_table_google_2fprotobuf_2ftype_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2ftype_2eproto_getter, &descriptor_table_google_2fprotobuf_2ftype_2eproto_once,
       file_level_metadata_google_2fprotobuf_2ftype_2eproto[4]);
 }
 // @@protoc_insertion_point(namespace_scope)

src/google/protobuf/wrappers.pb.cc

@@ -330,13 +330,14 @@ const char descriptor_table_protodef_google_2fprotobuf_2fwrappers_2eproto[] ABSL
     "erspb\370\001\001\242\002\003GPB\252\002\036Google.Protobuf.WellKno"
     "wnTypesb\006proto3"
 };
-PROTOBUF_CONSTINIT
+static ::absl::once_flag descriptor_table_google_2fprotobuf_2fwrappers_2eproto_once;
-PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 const ::_pbi::DescriptorTable
+const ::_pbi::DescriptorTable descriptor_table_google_2fprotobuf_2fwrappers_2eproto = {
-    descriptor_table_google_2fprotobuf_2fwrappers_2eproto = {
+    false,
     false,
     455,
     descriptor_table_protodef_google_2fprotobuf_2fwrappers_2eproto,
     "google/protobuf/wrappers.proto",
+    &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_once,
     nullptr,
     0,
     9,
@@ -348,6 +349,17 @@ PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 const ::_pbi::DescriptorTable
     file_level_service_descriptors_google_2fprotobuf_2fwrappers_2eproto,
 };
 
+// This function exists to be marked as weak.
+// It can significantly speed up compilation by breaking up LLVM's SCC
+// in the .pb.cc translation units. Large translation units see a
+// reduction of more than 35% of walltime for optimized builds. Without
+// the weak attribute all the messages in the file, including all the
+// vtables and everything they use become part of the same SCC through
+// a cycle like:
+// GetMetadata -> descriptor table -> default instances ->
+//   vtables -> GetMetadata
+// By adding a weak function here we break the connection from the
+// individual vtables back into the descriptor table.
 PROTOBUF_ATTRIBUTE_WEAK const ::_pbi::DescriptorTable* descriptor_table_google_2fprotobuf_2fwrappers_2eproto_getter() {
   return &descriptor_table_google_2fprotobuf_2fwrappers_2eproto;
 }
@@ -541,7 +553,7 @@ void DoubleValue::InternalSwap(DoubleValue* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata DoubleValue::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_getter, &descriptor_table_google_2fprotobuf_2fwrappers_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_getter, &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_once,
       file_level_metadata_google_2fprotobuf_2fwrappers_2eproto[0]);
 }
 // ===================================================================
@@ -729,7 +741,7 @@ void FloatValue::InternalSwap(FloatValue* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata FloatValue::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_getter, &descriptor_table_google_2fprotobuf_2fwrappers_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_getter, &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_once,
       file_level_metadata_google_2fprotobuf_2fwrappers_2eproto[1]);
 }
 // ===================================================================
@@ -903,7 +915,7 @@ void Int64Value::InternalSwap(Int64Value* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata Int64Value::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_getter, &descriptor_table_google_2fprotobuf_2fwrappers_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_getter, &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_once,
       file_level_metadata_google_2fprotobuf_2fwrappers_2eproto[2]);
 }
 // ===================================================================
@@ -1077,7 +1089,7 @@ void UInt64Value::InternalSwap(UInt64Value* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata UInt64Value::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_getter, &descriptor_table_google_2fprotobuf_2fwrappers_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_getter, &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_once,
       file_level_metadata_google_2fprotobuf_2fwrappers_2eproto[3]);
 }
 // ===================================================================
@@ -1251,7 +1263,7 @@ void Int32Value::InternalSwap(Int32Value* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata Int32Value::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_getter, &descriptor_table_google_2fprotobuf_2fwrappers_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_getter, &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_once,
       file_level_metadata_google_2fprotobuf_2fwrappers_2eproto[4]);
 }
 // ===================================================================
@@ -1425,7 +1437,7 @@ void UInt32Value::InternalSwap(UInt32Value* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata UInt32Value::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_getter, &descriptor_table_google_2fprotobuf_2fwrappers_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_getter, &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_once,
       file_level_metadata_google_2fprotobuf_2fwrappers_2eproto[5]);
 }
 // ===================================================================
@@ -1598,7 +1610,7 @@ void BoolValue::InternalSwap(BoolValue* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata BoolValue::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_getter, &descriptor_table_google_2fprotobuf_2fwrappers_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_getter, &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_once,
       file_level_metadata_google_2fprotobuf_2fwrappers_2eproto[6]);
 }
 // ===================================================================
@@ -1792,7 +1804,7 @@ void StringValue::InternalSwap(StringValue* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata StringValue::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_getter, &descriptor_table_google_2fprotobuf_2fwrappers_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_getter, &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_once,
       file_level_metadata_google_2fprotobuf_2fwrappers_2eproto[7]);
 }
 // ===================================================================
@@ -1981,7 +1993,7 @@ void BytesValue::InternalSwap(BytesValue* PROTOBUF_RESTRICT other) {
 
 ::google::protobuf::Metadata BytesValue::GetMetadata() const {
   return ::_pbi::AssignDescriptors(
-      &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_getter, &descriptor_table_google_2fprotobuf_2fwrappers_2eproto.once,
+      &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_getter, &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_once,
       file_level_metadata_google_2fprotobuf_2fwrappers_2eproto[8]);
 }
 // @@protoc_insertion_point(namespace_scope)