Clean up handling of PNaCl bitcode headers.

Write out all of PNaCl bitcode headers using a single interface
function.

BUG= https://code.google.com/p/nativeclient/issues/detail?id=3720
R=jvoung@chromium.org

Review URL: https://codereview.chromium.org/61753017

1 files changed, 7 insertions, 0 deletions

diff --git a/include/llvm/Bitcode/NaCl/NaClReaderWriter.h b/include/llvm/Bitcode/NaCl/NaClReaderWriter.h
index d415b85de8..c3c15851a0 100644
--- a/include/llvm/Bitcode/NaCl/NaClReaderWriter.h
+++ b/include/llvm/Bitcode/NaCl/NaClReaderWriter.h
@@ -24,6 +24,8 @@ namespace llvm {
   class LLVMContext;
   class Module;
   class raw_ostream;
+  class NaClBitcodeHeader;
+  class NaClBitstreamWriter;
 
   /// \brief Defines the integer bit size used to model pointers in PNaCl.
   static const unsigned PNaClIntPtrTypeBitSize = 32;
@@ -98,5 +100,10 @@ namespace llvm {
         BufPtr[3] == 'E';
   }
 
+  // NaClWriteHeader - Write the contents of the bitcode header to the
+  // corresponding bitcode stream.
+  void NaClWriteHeader(const NaClBitcodeHeader &Header,
+                       NaClBitstreamWriter &Stream);
+
 } // end llvm namespace
 #endif