1 files changed, 52 insertions, 0 deletions
diff --git a/llvm/lib/TableGen/TGPreprocessor.h b/llvm/lib/TableGen/TGPreprocessor.h
new file mode 100644
index 00000000000..2b9ed9c1566
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+++ b/llvm/lib/TableGen/TGPreprocessor.h
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+//===- TGPreprocessor.h - Preprocessor for TableGen Files -------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This class represents the Preprocessor for tablegen files.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef TGPREPROCESSOR_H
+#define TGPREPROCESSOR_H
+
+#include <vector>
+
+namespace llvm {
+class MemoryBuffer;
+class SourceMgr;
+class tool_output_file;
+
+class TGPPLexer;
+class TGPPRange;
+class TGPPRecord;
+
+typedef std::vector<TGPPRecord> TGPPRecords;
+
+class TGPreprocessor {
+  SourceMgr &SrcMgr;
+  tool_output_file &Out;
+
+  TGPPLexer *Lexer;
+  TGPPRecords *CurRecords;
+
+  bool ParseBlock(bool TopLevel);
+  bool ParseForLoop();
+  bool ParseRange(TGPPRange *Range);
+
+public:
+  TGPreprocessor(SourceMgr &SM, tool_output_file &O)
+    : SrcMgr(SM), Out(O), Lexer(NULL), CurRecords(NULL) {
+  }
+
+  /// PreprocessFile - Main entrypoint for preprocess a tblgen file.  These
+  /// preprocess routines return true on error, or false on success.
+  bool PreprocessFile();
+};
+} // namespace llvm
+
+#endif /* TGPREPROCESSOR_H */