Copy Bitwriter to generate PNaClBitwriter.

include/llvm/Bitcode/NaCl/NaClReaderWriter.h

Index: include/llvm/Bitcode/NaCl/NaClReaderWriter.h
diff --git a/include/llvm/Bitcode/NaCl/NaClReaderWriter.h b/include/llvm/Bitcode/NaCl/NaClReaderWriter.h
new file mode 100644
index 0000000000000000000000000000000000000000..d1774918045be8c8bbdfe51ac5d2bc7c6a3851d7
--- /dev/null
+++ b/include/llvm/Bitcode/NaCl/NaClReaderWriter.h
@@ -0,0 +1,29 @@
+//===-- llvm/Bitcode/PNaCl/PNaClReaderWriter.h - ----------------*- C++ -*-===//

[jvoung (off chromium), 2013/04/25 17:42:45]

Is the header meant to have reader functions too (it's called ReaderWriter)?

[Karl, 2013/04/25 20:48:17]

Yes. However, I haven't added that part yet. I did it this way to mimic the
structure used by LLVM.

The next CL will add the read function(s).

+//      NaCl Bitcode reader/writer.
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This header defines interfaces to read and write LLVM bitcode files/streams.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_BITCODE_PNACLREADERWRITER_H
+#define LLVM_BITCODE_PNACLREADERWRITER_H
+
+namespace llvm {
+  class Module;
+  class raw_ostream;
+
+  /// PNaClWriteBitcodeToFile - Write the specified module to the
+  /// specified raw output stream, using PNaCl wire format.  For
+  /// streams where it matters, the given stream should be in "binary"
+  /// mode.
+  void PNaClWriteBitcodeToFile(const Module *M, raw_ostream &Out);
+
+} // end llvm namespace
+#endif