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diff --git a/clang/include/clang/Frontend/SerializedDiagnosticPrinter.h b/clang/include/clang/Frontend/SerializedDiagnosticPrinter.h
new file mode 100644
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+++ b/clang/include/clang/Frontend/SerializedDiagnosticPrinter.h
@@ -0,0 +1,62 @@
+//===--- SerializedDiagnosticPrinter.h - Serializer for diagnostics -------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_FRONTEND_SERIALIZE_DIAGNOSTIC_PRINTER_H_
+#define LLVM_CLANG_FRONTEND_SERIALIZE_DIAGNOSTIC_PRINTER_H_
+
+#include "llvm/Bitcode/BitstreamWriter.h"
+
+namespace llvm {
+class raw_ostream;
+}
+
+namespace clang {
+class DiagnosticConsumer;
+class DiagnosticsEngine;
+class DiagnosticOptions;
+
+namespace serialized_diags {
+  
+enum BlockIDs {
+  /// \brief A top-level block which represents any meta data associated
+  /// with the diagostics, including versioning of the format.
+  BLOCK_META = llvm::bitc::FIRST_APPLICATION_BLOCKID,
+
+  /// \brief The this block acts as a container for all the information
+  /// for a specific diagnostic.
+  BLOCK_DIAG
+};
+
+enum RecordIDs {
+  RECORD_VERSION = 1,
+  RECORD_DIAG,
+  RECORD_SOURCE_RANGE,
+  RECORD_DIAG_FLAG,
+  RECORD_CATEGORY,
+  RECORD_FILENAME,
+  RECORD_FIXIT,
+  RECORD_FIRST = RECORD_VERSION,
+  RECORD_LAST = RECORD_FIXIT
+};
+
+/// \brief Returns a DiagnosticConsumer that serializes diagnostics to
+///  a bitcode file.
+///
+/// The created DiagnosticConsumer is designed for quick and lightweight
+/// transfer of of diagnostics to the enclosing build system (e.g., an IDE).
+/// This allows wrapper tools for Clang to get diagnostics from Clang
+/// (via libclang) without needing to parse Clang's command line output.
+///
+DiagnosticConsumer *create(llvm::raw_ostream *OS,
+                           const DiagnosticOptions &diags);
+
+} // end serialized_diags namespace
+} // end clang namespace
+
+#endif