3 files changed, 7 insertions, 4 deletions
diff --git a/clang/lib/Frontend/TestModuleFileExtension.cpp b/clang/lib/Frontend/TestModuleFileExtension.cpp
index c020468ce0f..d1b20c4a80b 100644
--- a/clang/lib/Frontend/TestModuleFileExtension.cpp
+++ b/clang/lib/Frontend/TestModuleFileExtension.cpp
@@ -19,6 +19,7 @@ using namespace clang::serialization;
 TestModuleFileExtension::Writer::~Writer() { }
 
 void TestModuleFileExtension::Writer::writeExtensionContents(
+       Sema &SemaRef,
        llvm::BitstreamWriter &Stream) {
   using namespace llvm;
 
diff --git a/clang/lib/Frontend/TestModuleFileExtension.h b/clang/lib/Frontend/TestModuleFileExtension.h
index 2a7245463cf..41f3ca9f05f 100644
--- a/clang/lib/Frontend/TestModuleFileExtension.h
+++ b/clang/lib/Frontend/TestModuleFileExtension.h
@@ -30,7 +30,8 @@ class TestModuleFileExtension : public ModuleFileExtension {
     Writer(ModuleFileExtension *Ext) : ModuleFileExtensionWriter(Ext) { }
     ~Writer() override;
 
-    void writeExtensionContents(llvm::BitstreamWriter &Stream) override;
+    void writeExtensionContents(Sema &SemaRef,
+                                llvm::BitstreamWriter &Stream) override;
   };
 
   class Reader : public ModuleFileExtensionReader {
diff --git a/clang/lib/Serialization/ASTWriter.cpp b/clang/lib/Serialization/ASTWriter.cpp
index 7d3cefed741..128935c5c73 100644
--- a/clang/lib/Serialization/ASTWriter.cpp
+++ b/clang/lib/Serialization/ASTWriter.cpp
@@ -3880,7 +3880,8 @@ void ASTWriter::WriteOptimizePragmaOptions(Sema &SemaRef) {
   Stream.EmitRecord(OPTIMIZE_PRAGMA_OPTIONS, Record);
 }
 
-void ASTWriter::WriteModuleFileExtension(ModuleFileExtensionWriter &Writer) {
+void ASTWriter::WriteModuleFileExtension(Sema &SemaRef,
+                                         ModuleFileExtensionWriter &Writer) {
   // Enter the extension block.
   Stream.EnterSubblock(EXTENSION_BLOCK_ID, 4);
 
@@ -3908,7 +3909,7 @@ void ASTWriter::WriteModuleFileExtension(ModuleFileExtensionWriter &Writer) {
   Stream.EmitRecordWithBlob(Abbrev, Record, Buffer);
 
   // Emit the contents of the extension block.
-  Writer.writeExtensionContents(Stream);
+  Writer.writeExtensionContents(SemaRef, Stream);
 
   // Exit the extension block.
   Stream.ExitBlock();
@@ -4563,7 +4564,7 @@ uint64_t ASTWriter::WriteASTCore(Sema &SemaRef, StringRef isysroot,
 
   // Write the module file extension blocks.
   for (const auto &ExtWriter : ModuleFileExtensionWriters)
-    WriteModuleFileExtension(*ExtWriter);
+    WriteModuleFileExtension(SemaRef, *ExtWriter);
 
   return Signature;
 }