Add initial implementation of a TableGen backend for converting Clang-warnings

tablegen files to the original .def preprocessor include files. This is my first
TableGen backend; I don't claim that it is awesome.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66971 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 35 insertions, 0 deletions

diff --git a/utils/TableGen/ClangDiagnosticsEmitter.h b/utils/TableGen/ClangDiagnosticsEmitter.h
new file mode 100644
index 0000000000..93979708b0
--- /dev/null
+++ b/utils/TableGen/ClangDiagnosticsEmitter.h
@@ -0,0 +1,35 @@
+//===- ClangDiagnosticsEmitter.h - Generate Clang diagnostics tables -*- C++ -*-
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// These tablegen backends emit Clang diagnostics tables.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef CLANGDIAGS_EMITTER_H
+#define CLANGDIAGS_EMITTER_H
+
+#include "TableGenBackend.h"
+
+namespace llvm {
+
+/// ClangDiagsDefsEmitter - The top-level class emits .def files containing
+///  declarations of Clang diagnostics.
+///
+class ClangDiagsDefsEmitter : public TableGenBackend {
+  RecordKeeper &Records;
+public:
+  explicit ClangDiagsDefsEmitter(RecordKeeper &R) : Records(R) {}
+
+  // run - Output the .def file contents
+  void run(std::ostream &OS);
+};
+
+} // End llvm namespace
+
+#endif