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diff --git a/include/clang/Frontend/LangStandards.def b/include/clang/Frontend/LangStandards.def
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+++ b/include/clang/Frontend/LangStandards.def
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+//===-- LangStandards.def - Language Standard Data --------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LANGSTANDARD
+#error "LANGSTANDARD must be defined before including this file"
+#endif
+
+/// LANGSTANDARD(IDENT, NAME, DESC, FEATURES)
+///
+/// \param IDENT - The name of the standard as a C++ identifier.
+/// \param NAME - The name of the standard.
+/// \param DESC - A short description of the standard.
+/// \param FEATURES - The standard features as flags, these are enums from the
+/// clang::frontend namespace, which is assumed to be be available.
+
+// C89-ish modes.
+LANGSTANDARD(c89, "c89",
+             "ISO C 1990",
+             ImplicitInt)
+LANGSTANDARD(c90, "c90",
+             "ISO C 1990",
+             ImplicitInt)
+LANGSTANDARD(iso9899_1990, "iso9899:1990",
+             "ISO C 1990",
+             ImplicitInt)
+
+LANGSTANDARD(c94, "iso9899:199409",
+             "ISO C 1990 with amendment 1",
+             Digraphs | ImplicitInt)
+
+LANGSTANDARD(gnu89, "gnu89",
+             "ISO C 1990 with GNU extensions",
+             BCPLComment | Digraphs | GNUMode | ImplicitInt)
+
+// C99-ish modes
+LANGSTANDARD(c99, "c99",
+             "ISO C 1999",
+             BCPLComment | C99 | Digraphs | HexFloat)
+LANGSTANDARD(c9x, "c9x",
+             "ISO C 1999",
+             BCPLComment | C99 | Digraphs | HexFloat)
+LANGSTANDARD(iso9899_1999,
+             "iso9899:1999", "ISO C 1999",
+             BCPLComment | C99 | Digraphs | HexFloat)
+LANGSTANDARD(iso9899_199x,
+             "iso9899:199x", "ISO C 1999",
+             BCPLComment | C99 | Digraphs | HexFloat)
+
+LANGSTANDARD(gnu99, "gnu99",
+             "ISO C 1999 with GNU extensions",
+             BCPLComment | C99 | Digraphs | GNUMode | HexFloat | Digraphs)
+LANGSTANDARD(gnu9x, "gnu9x",
+             "ISO C 1999 with GNU extensions",
+             BCPLComment | C99 | Digraphs | GNUMode | HexFloat)
+
+// C++ modes
+LANGSTANDARD(cxx98, "c++98",
+             "ISO C++ 1998 with amendments",
+             BCPLComment | CPlusPlus | Digraphs)
+LANGSTANDARD(gnucxx98, "gnu++98",
+             "ISO C++ 1998 with " "amendments and GNU extensions",
+             BCPLComment | CPlusPlus | Digraphs | GNUMode)
+
+LANGSTANDARD(cxx0x, "c++0x",
+             "Upcoming ISO C++ 200x with amendments",
+             BCPLComment | CPlusPlus | CPlusPlus0x | Digraphs)
+LANGSTANDARD(gnucxx0x, "gnu++0x",
+             "Upcoming ISO C++ 200x with amendments and GNU extensions",
+             BCPLComment | CPlusPlus | CPlusPlus0x | Digraphs | GNUMode)
+
+// OpenCL
+
+LANGSTANDARD(opencl, "cl",
+             "OpenCL 1.0",
+             BCPLComment | C99 | Digraphs | HexFloat)
+
+#undef LANGSTANDARD