static void InitializePredefinedMacros(const TargetInfo &TI,
                                       const LangOptions &LangOpts,
                                       const FrontendOptions &FEOpts,
                                       MacroBuilder &Builder) {
  // Compiler version introspection macros.
  Builder.defineMacro("__llvm__");  // LLVM Backend
  Builder.defineMacro("__clang__"); // Clang Frontend
#define TOSTR2(X) #X
#define TOSTR(X) TOSTR2(X)
  Builder.defineMacro("__clang_major__", TOSTR(CLANG_VERSION_MAJOR));
  Builder.defineMacro("__clang_minor__", TOSTR(CLANG_VERSION_MINOR));
#ifdef CLANG_VERSION_PATCHLEVEL
  Builder.defineMacro("__clang_patchlevel__", TOSTR(CLANG_VERSION_PATCHLEVEL));
#else
  Builder.defineMacro("__clang_patchlevel__", "0");
#endif
  Builder.defineMacro("__clang_version__", 
                      "\"" CLANG_VERSION_STRING " "
                      + getClangFullRepositoryVersion() + "\"");
#undef TOSTR
#undef TOSTR2
  if (!LangOpts.MicrosoftMode) {
    // Currently claim to be compatible with GCC 4.2.1-5621, but only if we're
    // not compiling for MSVC compatibility
    Builder.defineMacro("__GNUC_MINOR__", "2");
    Builder.defineMacro("__GNUC_PATCHLEVEL__", "1");
    Builder.defineMacro("__GNUC__", "4");
    Builder.defineMacro("__GXX_ABI_VERSION", "1002");
  }

  // Define macros for the C11 / C++11 memory orderings
  Builder.defineMacro("__ATOMIC_RELAXED", "0");
  Builder.defineMacro("__ATOMIC_CONSUME", "1");
  Builder.defineMacro("__ATOMIC_ACQUIRE", "2");
  Builder.defineMacro("__ATOMIC_RELEASE", "3");
  Builder.defineMacro("__ATOMIC_ACQ_REL", "4");
  Builder.defineMacro("__ATOMIC_SEQ_CST", "5");

  // Support for #pragma redefine_extname (Sun compatibility)
  Builder.defineMacro("__PRAGMA_REDEFINE_EXTNAME", "1");

  // As sad as it is, enough software depends on the __VERSION__ for version
  // checks that it is necessary to report 4.2.1 (the base GCC version we claim
  // compatibility with) first.
  Builder.defineMacro("__VERSION__", "\"4.2.1 Compatible " + 
                      Twine(getClangFullCPPVersion()) + "\"");

  // Initialize language-specific preprocessor defines.

  // Standard conforming mode?
  if (!LangOpts.GNUMode)
    Builder.defineMacro("__STRICT_ANSI__");

  if (LangOpts.CPlusPlus11)
    Builder.defineMacro("__GXX_EXPERIMENTAL_CXX0X__");

  if (LangOpts.ObjC1) {
    if (LangOpts.ObjCRuntime.isNonFragile()) {
      Builder.defineMacro("__OBJC2__");
      
      if (LangOpts.ObjCExceptions)
        Builder.defineMacro("OBJC_ZEROCOST_EXCEPTIONS");
    }

    if (LangOpts.getGC() != LangOptions::NonGC)
      Builder.defineMacro("__OBJC_GC__");

    if (LangOpts.ObjCRuntime.isNeXTFamily())
      Builder.defineMacro("__NEXT_RUNTIME__");

    Builder.defineMacro("IBOutlet", "__attribute__((iboutlet))");
    Builder.defineMacro("IBOutletCollection(ClassName)",
                        "__attribute__((iboutletcollection(ClassName)))");
    Builder.defineMacro("IBAction", "void)__attribute__((ibaction)");
  }

  if (LangOpts.getDuettoSide()==LangOptions::DUETTO_Client)
  {
    Builder.defineMacro("__DUETTO_CLIENT__");
  }
  else if (LangOpts.getDuettoSide()==LangOptions::DUETTO_Server)
  {
    Builder.defineMacro("__DUETTO_SERVER__");
  }

  // darwin_constant_cfstrings controls this. This is also dependent
  // on other things like the runtime I believe.  This is set even for C code.
  if (!LangOpts.NoConstantCFStrings)
      Builder.defineMacro("__CONSTANT_CFSTRINGS__");

  if (LangOpts.ObjC2)
    Builder.defineMacro("OBJC_NEW_PROPERTIES");

  if (LangOpts.PascalStrings)
    Builder.defineMacro("__PASCAL_STRINGS__");

  if (LangOpts.Blocks) {
    Builder.defineMacro("__block", "__attribute__((__blocks__(byref)))");
    Builder.defineMacro("__BLOCKS__");
  }

  if (LangOpts.CXXExceptions)
    Builder.defineMacro("__EXCEPTIONS");
  if (LangOpts.RTTI)
    Builder.defineMacro("__GXX_RTTI");
  if (LangOpts.SjLjExceptions)
    Builder.defineMacro("__USING_SJLJ_EXCEPTIONS__");

  if (LangOpts.Deprecated)
    Builder.defineMacro("__DEPRECATED");

  if (LangOpts.CPlusPlus) {
    Builder.defineMacro("__GNUG__", "4");
    Builder.defineMacro("__GXX_WEAK__");
    Builder.defineMacro("__private_extern__", "extern");
  }

  if (LangOpts.MicrosoftExt) {
    // Both __PRETTY_FUNCTION__ and __FUNCTION__ are GCC extensions, however
    // VC++ appears to only like __FUNCTION__.
    Builder.defineMacro("__PRETTY_FUNCTION__", "__FUNCTION__");
    // Work around some issues with Visual C++ headers.
    if (LangOpts.WChar) {
      // wchar_t supported as a keyword.
      Builder.defineMacro("_WCHAR_T_DEFINED");
      Builder.defineMacro("_NATIVE_WCHAR_T_DEFINED");
    }
    if (LangOpts.CPlusPlus) {
      // FIXME: Support Microsoft's __identifier extension in the lexer.
      Builder.append("#define __identifier(x) x");
      Builder.append("class type_info;");
    }
  }

  if (LangOpts.Optimize)
    Builder.defineMacro("__OPTIMIZE__");
  if (LangOpts.OptimizeSize)
    Builder.defineMacro("__OPTIMIZE_SIZE__");

  if (LangOpts.FastMath)
    Builder.defineMacro("__FAST_MATH__");

  // Initialize target-specific preprocessor defines.

  // __BYTE_ORDER__ was added in GCC 4.6. It's analogous
  // to the macro __BYTE_ORDER (no trailing underscores)
  // from glibc's <endian.h> header.
  // We don't support the PDP-11 as a target, but include
  // the define so it can still be compared against.
  Builder.defineMacro("__ORDER_LITTLE_ENDIAN__", "1234");
  Builder.defineMacro("__ORDER_BIG_ENDIAN__",    "4321");
  Builder.defineMacro("__ORDER_PDP_ENDIAN__",    "3412");
  if (TI.isBigEndian())
    Builder.defineMacro("__BYTE_ORDER__", "__ORDER_BIG_ENDIAN__");
  else
    Builder.defineMacro("__BYTE_ORDER__", "__ORDER_LITTLE_ENDIAN__");


  if (TI.getPointerWidth(0) == 64 && TI.getLongWidth() == 64
      && TI.getIntWidth() == 32) {
    Builder.defineMacro("_LP64");
    Builder.defineMacro("__LP64__");
  }

  // Define type sizing macros based on the target properties.
  assert(TI.getCharWidth() == 8 && "Only support 8-bit char so far");
  Builder.defineMacro("__CHAR_BIT__", "8");

  DefineTypeSize("__SCHAR_MAX__", TI.getCharWidth(), "", true, Builder);
  DefineTypeSize("__SHRT_MAX__", TargetInfo::SignedShort, TI, Builder);
  DefineTypeSize("__INT_MAX__", TargetInfo::SignedInt, TI, Builder);
  DefineTypeSize("__LONG_MAX__", TargetInfo::SignedLong, TI, Builder);
  DefineTypeSize("__LONG_LONG_MAX__", TargetInfo::SignedLongLong, TI, Builder);
  DefineTypeSize("__WCHAR_MAX__", TI.getWCharType(), TI, Builder);
  DefineTypeSize("__INTMAX_MAX__", TI.getIntMaxType(), TI, Builder);
  DefineTypeSize("__SIZE_MAX__", TI.getSizeType(), TI, Builder);

  DefineTypeSizeof("__SIZEOF_DOUBLE__", TI.getDoubleWidth(), TI, Builder);
  DefineTypeSizeof("__SIZEOF_FLOAT__", TI.getFloatWidth(), TI, Builder);
  DefineTypeSizeof("__SIZEOF_INT__", TI.getIntWidth(), TI, Builder);
  DefineTypeSizeof("__SIZEOF_LONG__", TI.getLongWidth(), TI, Builder);
  DefineTypeSizeof("__SIZEOF_LONG_DOUBLE__",TI.getLongDoubleWidth(),TI,Builder);
  DefineTypeSizeof("__SIZEOF_LONG_LONG__", TI.getLongLongWidth(), TI, Builder);
  DefineTypeSizeof("__SIZEOF_POINTER__", TI.getPointerWidth(0), TI, Builder);
  DefineTypeSizeof("__SIZEOF_SHORT__", TI.getShortWidth(), TI, Builder);
  DefineTypeSizeof("__SIZEOF_PTRDIFF_T__",
                   TI.getTypeWidth(TI.getPtrDiffType(0)), TI, Builder);
  DefineTypeSizeof("__SIZEOF_SIZE_T__",
                   TI.getTypeWidth(TI.getSizeType()), TI, Builder);
  DefineTypeSizeof("__SIZEOF_WCHAR_T__",
                   TI.getTypeWidth(TI.getWCharType()), TI, Builder);
  DefineTypeSizeof("__SIZEOF_WINT_T__",
                   TI.getTypeWidth(TI.getWIntType()), TI, Builder);
  if (TI.hasInt128Type())
    DefineTypeSizeof("__SIZEOF_INT128__", 128, TI, Builder);

  DefineType("__INTMAX_TYPE__", TI.getIntMaxType(), Builder);
  DefineType("__UINTMAX_TYPE__", TI.getUIntMaxType(), Builder);
  DefineTypeWidth("__INTMAX_WIDTH__",  TI.getIntMaxType(), TI, Builder);
  DefineType("__PTRDIFF_TYPE__", TI.getPtrDiffType(0), Builder);
  DefineTypeWidth("__PTRDIFF_WIDTH__", TI.getPtrDiffType(0), TI, Builder);
  DefineType("__INTPTR_TYPE__", TI.getIntPtrType(), Builder);
  DefineTypeWidth("__INTPTR_WIDTH__", TI.getIntPtrType(), TI, Builder);
  DefineType("__SIZE_TYPE__", TI.getSizeType(), Builder);
  DefineTypeWidth("__SIZE_WIDTH__", TI.getSizeType(), TI, Builder);
  DefineType("__WCHAR_TYPE__", TI.getWCharType(), Builder);
  DefineTypeWidth("__WCHAR_WIDTH__", TI.getWCharType(), TI, Builder);
  DefineType("__WINT_TYPE__", TI.getWIntType(), Builder);
  DefineTypeWidth("__WINT_WIDTH__", TI.getWIntType(), TI, Builder);
  DefineTypeWidth("__SIG_ATOMIC_WIDTH__", TI.getSigAtomicType(), TI, Builder);
  DefineType("__CHAR16_TYPE__", TI.getChar16Type(), Builder);
  DefineType("__CHAR32_TYPE__", TI.getChar32Type(), Builder);

  DefineFloatMacros(Builder, "FLT", &TI.getFloatFormat(), "F");
  DefineFloatMacros(Builder, "DBL", &TI.getDoubleFormat(), "");
  DefineFloatMacros(Builder, "LDBL", &TI.getLongDoubleFormat(), "L");

  // Define a __POINTER_WIDTH__ macro for stdint.h.
  Builder.defineMacro("__POINTER_WIDTH__",
                      Twine((int)TI.getPointerWidth(0)));

  if (!LangOpts.CharIsSigned)
    Builder.defineMacro("__CHAR_UNSIGNED__");

  if (!TargetInfo::isTypeSigned(TI.getWCharType()))
    Builder.defineMacro("__WCHAR_UNSIGNED__");

  if (!TargetInfo::isTypeSigned(TI.getWIntType()))
    Builder.defineMacro("__WINT_UNSIGNED__");

  // Define exact-width integer types for stdint.h
  Builder.defineMacro("__INT" + Twine(TI.getCharWidth()) + "_TYPE__",
                      "char");

  if (TI.getShortWidth() > TI.getCharWidth())
    DefineExactWidthIntType(TargetInfo::SignedShort, TI, Builder);

  if (TI.getIntWidth() > TI.getShortWidth())
    DefineExactWidthIntType(TargetInfo::SignedInt, TI, Builder);

  if (TI.getLongWidth() > TI.getIntWidth())
    DefineExactWidthIntType(TargetInfo::SignedLong, TI, Builder);

  if (TI.getLongLongWidth() > TI.getLongWidth())
    DefineExactWidthIntType(TargetInfo::SignedLongLong, TI, Builder);

  if (const char *Prefix = TI.getUserLabelPrefix())
    Builder.defineMacro("__USER_LABEL_PREFIX__", Prefix);

  if (LangOpts.FastMath || LangOpts.FiniteMathOnly)
    Builder.defineMacro("__FINITE_MATH_ONLY__", "1");
  else
    Builder.defineMacro("__FINITE_MATH_ONLY__", "0");

  if (LangOpts.GNUInline)
    Builder.defineMacro("__GNUC_GNU_INLINE__");
  else
    Builder.defineMacro("__GNUC_STDC_INLINE__");

  // The value written by __atomic_test_and_set.
  // FIXME: This is target-dependent.
  Builder.defineMacro("__GCC_ATOMIC_TEST_AND_SET_TRUEVAL", "1");

  // Used by libstdc++ to implement ATOMIC_<foo>_LOCK_FREE.
  unsigned InlineWidthBits = TI.getMaxAtomicInlineWidth();
#define DEFINE_LOCK_FREE_MACRO(TYPE, Type) \
  Builder.defineMacro("__GCC_ATOMIC_" #TYPE "_LOCK_FREE", \
                      getLockFreeValue(TI.get##Type##Width(), \
                                       TI.get##Type##Align(), \
                                       InlineWidthBits));
  DEFINE_LOCK_FREE_MACRO(BOOL, Bool);
  DEFINE_LOCK_FREE_MACRO(CHAR, Char);
  DEFINE_LOCK_FREE_MACRO(CHAR16_T, Char16);
  DEFINE_LOCK_FREE_MACRO(CHAR32_T, Char32);
  DEFINE_LOCK_FREE_MACRO(WCHAR_T, WChar);
  DEFINE_LOCK_FREE_MACRO(SHORT, Short);
  DEFINE_LOCK_FREE_MACRO(INT, Int);
  DEFINE_LOCK_FREE_MACRO(LONG, Long);
  DEFINE_LOCK_FREE_MACRO(LLONG, LongLong);
  Builder.defineMacro("__GCC_ATOMIC_POINTER_LOCK_FREE",
                      getLockFreeValue(TI.getPointerWidth(0),
                                       TI.getPointerAlign(0),
                                       InlineWidthBits));
#undef DEFINE_LOCK_FREE_MACRO

  if (LangOpts.NoInlineDefine)
    Builder.defineMacro("__NO_INLINE__");

  if (unsigned PICLevel = LangOpts.PICLevel) {
    Builder.defineMacro("__PIC__", Twine(PICLevel));
    Builder.defineMacro("__pic__", Twine(PICLevel));
  }
  if (unsigned PIELevel = LangOpts.PIELevel) {
    Builder.defineMacro("__PIE__", Twine(PIELevel));
    Builder.defineMacro("__pie__", Twine(PIELevel));
  }

  // Macros to control C99 numerics and <float.h>
  Builder.defineMacro("__FLT_EVAL_METHOD__", Twine(TI.getFloatEvalMethod()));
  Builder.defineMacro("__FLT_RADIX__", "2");
  int Dig = PickFP(&TI.getLongDoubleFormat(), -1/*FIXME*/, 17, 21, 33, 36);
  Builder.defineMacro("__DECIMAL_DIG__", Twine(Dig));

  if (LangOpts.getStackProtector() == LangOptions::SSPOn)
    Builder.defineMacro("__SSP__");
  else if (LangOpts.getStackProtector() == LangOptions::SSPReq)
    Builder.defineMacro("__SSP_ALL__", "2");

  if (FEOpts.ProgramAction == frontend::RewriteObjC)
    Builder.defineMacro("__weak", "__attribute__((objc_gc(weak)))");

  // Define a macro that exists only when using the static analyzer.
  if (FEOpts.ProgramAction == frontend::RunAnalysis)
    Builder.defineMacro("__clang_analyzer__");

  if (LangOpts.FastRelaxedMath)
    Builder.defineMacro("__FAST_RELAXED_MATH__");

  if (LangOpts.ObjCAutoRefCount) {
    Builder.defineMacro("__weak", "__attribute__((objc_ownership(weak)))");
    Builder.defineMacro("__strong", "__attribute__((objc_ownership(strong)))");
    Builder.defineMacro("__autoreleasing",
                        "__attribute__((objc_ownership(autoreleasing)))");
    Builder.defineMacro("__unsafe_unretained",
                        "__attribute__((objc_ownership(none)))");
  }

  // OpenMP definition
  if (LangOpts.OpenMP) {
    // OpenMP 2.2: 
    //   In implementations that support a preprocessor, the _OPENMP
    //   macro name is defined to have the decimal value yyyymm where
    //   yyyy and mm are the year and the month designations of the
    //   version of the OpenMP API that the implementation support.
    Builder.defineMacro("_OPENMP", "201107");
  }

  // Get other target #defines.
  TI.getTargetDefines(LangOpts, Builder);
}
示例#2
0
static void InitializePredefinedMacros(const TargetInfo &TI,
                                       const LangOptions &LangOpts,
                                       const FrontendOptions &FEOpts,
                                       MacroBuilder &Builder) {
  // Compiler version introspection macros.
  Builder.defineMacro("__llvm__");  // LLVM Backend
  Builder.defineMacro("__clang__"); // Clang Frontend
#define TOSTR2(X) #X
#define TOSTR(X) TOSTR2(X)
  Builder.defineMacro("__clang_major__", TOSTR(CLANG_VERSION_MAJOR));
  Builder.defineMacro("__clang_minor__", TOSTR(CLANG_VERSION_MINOR));
#ifdef CLANG_VERSION_PATCHLEVEL
  Builder.defineMacro("__clang_patchlevel__", TOSTR(CLANG_VERSION_PATCHLEVEL));
#else
  Builder.defineMacro("__clang_patchlevel__", "0");
#endif
  Builder.defineMacro("__clang_version__", 
                      "\"" CLANG_VERSION_STRING " "
                      + getClangFullRepositoryVersion() + "\"");
#undef TOSTR
#undef TOSTR2
  if (!LangOpts.MSVCCompat) {
    // Currently claim to be compatible with GCC 4.2.1-5621, but only if we're
    // not compiling for MSVC compatibility
    Builder.defineMacro("__GNUC_MINOR__", "2");
    Builder.defineMacro("__GNUC_PATCHLEVEL__", "1");
    Builder.defineMacro("__GNUC__", "4");
    Builder.defineMacro("__GXX_ABI_VERSION", "1002");
  }

  // Define macros for the C11 / C++11 memory orderings
  Builder.defineMacro("__ATOMIC_RELAXED", "0");
  Builder.defineMacro("__ATOMIC_CONSUME", "1");
  Builder.defineMacro("__ATOMIC_ACQUIRE", "2");
  Builder.defineMacro("__ATOMIC_RELEASE", "3");
  Builder.defineMacro("__ATOMIC_ACQ_REL", "4");
  Builder.defineMacro("__ATOMIC_SEQ_CST", "5");

  // Support for #pragma redefine_extname (Sun compatibility)
  Builder.defineMacro("__PRAGMA_REDEFINE_EXTNAME", "1");

  // As sad as it is, enough software depends on the __VERSION__ for version
  // checks that it is necessary to report 4.2.1 (the base GCC version we claim
  // compatibility with) first.
  Builder.defineMacro("__VERSION__", "\"4.2.1 Compatible " + 
                      Twine(getClangFullCPPVersion()) + "\"");

  // Initialize language-specific preprocessor defines.

  // Standard conforming mode?
  if (!LangOpts.GNUMode && !LangOpts.MSVCCompat)
    Builder.defineMacro("__STRICT_ANSI__");

  if (!LangOpts.MSVCCompat && LangOpts.CPlusPlus11)
    Builder.defineMacro("__GXX_EXPERIMENTAL_CXX0X__");

  if (LangOpts.ObjC1) {
    if (LangOpts.ObjCRuntime.isNonFragile()) {
      Builder.defineMacro("__OBJC2__");
      
      if (LangOpts.ObjCExceptions)
        Builder.defineMacro("OBJC_ZEROCOST_EXCEPTIONS");
    }

    if (LangOpts.getGC() != LangOptions::NonGC)
      Builder.defineMacro("__OBJC_GC__");

    if (LangOpts.ObjCRuntime.isNeXTFamily())
      Builder.defineMacro("__NEXT_RUNTIME__");

    if (LangOpts.ObjCRuntime.getKind() == ObjCRuntime::ObjFW) {
      VersionTuple tuple = LangOpts.ObjCRuntime.getVersion();

      unsigned minor = 0;
      if (tuple.getMinor().hasValue())
        minor = tuple.getMinor().getValue();

      unsigned subminor = 0;
      if (tuple.getSubminor().hasValue())
        subminor = tuple.getSubminor().getValue();

      Builder.defineMacro("__OBJFW_RUNTIME_ABI__",
                          Twine(tuple.getMajor() * 10000 + minor * 100 +
                                subminor));
    }

    Builder.defineMacro("IBOutlet", "__attribute__((iboutlet))");
    Builder.defineMacro("IBOutletCollection(ClassName)",
                        "__attribute__((iboutletcollection(ClassName)))");
    Builder.defineMacro("IBAction", "void)__attribute__((ibaction)");
    Builder.defineMacro("IBInspectable", "");
    Builder.defineMacro("IB_DESIGNABLE", "");
  }

  if (LangOpts.CPlusPlus)
    InitializeCPlusPlusFeatureTestMacros(LangOpts, Builder);

  // darwin_constant_cfstrings controls this. This is also dependent
  // on other things like the runtime I believe.  This is set even for C code.
  if (!LangOpts.NoConstantCFStrings)
      Builder.defineMacro("__CONSTANT_CFSTRINGS__");

  if (LangOpts.ObjC2)
    Builder.defineMacro("OBJC_NEW_PROPERTIES");

  if (LangOpts.PascalStrings)
    Builder.defineMacro("__PASCAL_STRINGS__");

  if (LangOpts.Blocks) {
    Builder.defineMacro("__block", "__attribute__((__blocks__(byref)))");
    Builder.defineMacro("__BLOCKS__");
  }

  if (!LangOpts.MSVCCompat && LangOpts.Exceptions)
    Builder.defineMacro("__EXCEPTIONS");
  if (!LangOpts.MSVCCompat && LangOpts.RTTI)
    Builder.defineMacro("__GXX_RTTI");
  if (LangOpts.SjLjExceptions)
    Builder.defineMacro("__USING_SJLJ_EXCEPTIONS__");

  if (LangOpts.Deprecated)
    Builder.defineMacro("__DEPRECATED");

  if (!LangOpts.MSVCCompat && LangOpts.CPlusPlus) {
    Builder.defineMacro("__GNUG__", "4");
    Builder.defineMacro("__GXX_WEAK__");
    Builder.defineMacro("__private_extern__", "extern");
  }

  if (LangOpts.MicrosoftExt) {
    if (LangOpts.WChar) {
      // wchar_t supported as a keyword.
      Builder.defineMacro("_WCHAR_T_DEFINED");
      Builder.defineMacro("_NATIVE_WCHAR_T_DEFINED");
    }
  }

  if (LangOpts.Optimize)
    Builder.defineMacro("__OPTIMIZE__");
  if (LangOpts.OptimizeSize)
    Builder.defineMacro("__OPTIMIZE_SIZE__");

  if (LangOpts.FastMath)
    Builder.defineMacro("__FAST_MATH__");

  // Initialize target-specific preprocessor defines.

  // __BYTE_ORDER__ was added in GCC 4.6. It's analogous
  // to the macro __BYTE_ORDER (no trailing underscores)
  // from glibc's <endian.h> header.
  // We don't support the PDP-11 as a target, but include
  // the define so it can still be compared against.
  Builder.defineMacro("__ORDER_LITTLE_ENDIAN__", "1234");
  Builder.defineMacro("__ORDER_BIG_ENDIAN__",    "4321");
  Builder.defineMacro("__ORDER_PDP_ENDIAN__",    "3412");
  if (TI.isBigEndian()) {
    Builder.defineMacro("__BYTE_ORDER__", "__ORDER_BIG_ENDIAN__");
    Builder.defineMacro("__BIG_ENDIAN__");
  } else {
    Builder.defineMacro("__BYTE_ORDER__", "__ORDER_LITTLE_ENDIAN__");
    Builder.defineMacro("__LITTLE_ENDIAN__");
  }

  if (TI.getPointerWidth(0) == 64 && TI.getLongWidth() == 64
      && TI.getIntWidth() == 32) {
    Builder.defineMacro("_LP64");
    Builder.defineMacro("__LP64__");
  }

  if (TI.getPointerWidth(0) == 32 && TI.getLongWidth() == 32
      && TI.getIntWidth() == 32) {
    Builder.defineMacro("_ILP32");
    Builder.defineMacro("__ILP32__");
  }

  // Define type sizing macros based on the target properties.
  assert(TI.getCharWidth() == 8 && "Only support 8-bit char so far");
  Builder.defineMacro("__CHAR_BIT__", "8");

  DefineTypeSize("__SCHAR_MAX__", TargetInfo::SignedChar, TI, Builder);
  DefineTypeSize("__SHRT_MAX__", TargetInfo::SignedShort, TI, Builder);
  DefineTypeSize("__INT_MAX__", TargetInfo::SignedInt, TI, Builder);
  DefineTypeSize("__LONG_MAX__", TargetInfo::SignedLong, TI, Builder);
  DefineTypeSize("__LONG_LONG_MAX__", TargetInfo::SignedLongLong, TI, Builder);
  DefineTypeSize("__WCHAR_MAX__", TI.getWCharType(), TI, Builder);
  DefineTypeSize("__INTMAX_MAX__", TI.getIntMaxType(), TI, Builder);
  DefineTypeSize("__SIZE_MAX__", TI.getSizeType(), TI, Builder);

  DefineTypeSize("__UINTMAX_MAX__", TI.getUIntMaxType(), TI, Builder);
  DefineTypeSize("__PTRDIFF_MAX__", TI.getPtrDiffType(0), TI, Builder);
  DefineTypeSize("__INTPTR_MAX__", TI.getIntPtrType(), TI, Builder);
  DefineTypeSize("__UINTPTR_MAX__", TI.getUIntPtrType(), TI, Builder);

  DefineTypeSizeof("__SIZEOF_DOUBLE__", TI.getDoubleWidth(), TI, Builder);
  DefineTypeSizeof("__SIZEOF_FLOAT__", TI.getFloatWidth(), TI, Builder);
  DefineTypeSizeof("__SIZEOF_INT__", TI.getIntWidth(), TI, Builder);
  DefineTypeSizeof("__SIZEOF_LONG__", TI.getLongWidth(), TI, Builder);
  DefineTypeSizeof("__SIZEOF_LONG_DOUBLE__",TI.getLongDoubleWidth(),TI,Builder);
  DefineTypeSizeof("__SIZEOF_LONG_LONG__", TI.getLongLongWidth(), TI, Builder);
  DefineTypeSizeof("__SIZEOF_POINTER__", TI.getPointerWidth(0), TI, Builder);
  DefineTypeSizeof("__SIZEOF_SHORT__", TI.getShortWidth(), TI, Builder);
  DefineTypeSizeof("__SIZEOF_PTRDIFF_T__",
                   TI.getTypeWidth(TI.getPtrDiffType(0)), TI, Builder);
  DefineTypeSizeof("__SIZEOF_SIZE_T__",
                   TI.getTypeWidth(TI.getSizeType()), TI, Builder);
  DefineTypeSizeof("__SIZEOF_WCHAR_T__",
                   TI.getTypeWidth(TI.getWCharType()), TI, Builder);
  DefineTypeSizeof("__SIZEOF_WINT_T__",
                   TI.getTypeWidth(TI.getWIntType()), TI, Builder);
  if (TI.hasInt128Type())
    DefineTypeSizeof("__SIZEOF_INT128__", 128, TI, Builder);

  DefineType("__INTMAX_TYPE__", TI.getIntMaxType(), Builder);
  DefineFmt("__INTMAX", TI.getIntMaxType(), TI, Builder);
  Builder.defineMacro("__INTMAX_C_SUFFIX__",
                      TI.getTypeConstantSuffix(TI.getIntMaxType()));
  DefineType("__UINTMAX_TYPE__", TI.getUIntMaxType(), Builder);
  DefineFmt("__UINTMAX", TI.getUIntMaxType(), TI, Builder);
  Builder.defineMacro("__UINTMAX_C_SUFFIX__",
                      TI.getTypeConstantSuffix(TI.getUIntMaxType()));
  DefineTypeWidth("__INTMAX_WIDTH__",  TI.getIntMaxType(), TI, Builder);
  DefineType("__PTRDIFF_TYPE__", TI.getPtrDiffType(0), Builder);
  DefineFmt("__PTRDIFF", TI.getPtrDiffType(0), TI, Builder);
  DefineTypeWidth("__PTRDIFF_WIDTH__", TI.getPtrDiffType(0), TI, Builder);
  DefineType("__INTPTR_TYPE__", TI.getIntPtrType(), Builder);
  DefineFmt("__INTPTR", TI.getIntPtrType(), TI, Builder);
  DefineTypeWidth("__INTPTR_WIDTH__", TI.getIntPtrType(), TI, Builder);
  DefineType("__SIZE_TYPE__", TI.getSizeType(), Builder);
  DefineFmt("__SIZE", TI.getSizeType(), TI, Builder);
  DefineTypeWidth("__SIZE_WIDTH__", TI.getSizeType(), TI, Builder);
  DefineType("__WCHAR_TYPE__", TI.getWCharType(), Builder);
  DefineTypeWidth("__WCHAR_WIDTH__", TI.getWCharType(), TI, Builder);
  DefineType("__WINT_TYPE__", TI.getWIntType(), Builder);
  DefineTypeWidth("__WINT_WIDTH__", TI.getWIntType(), TI, Builder);
  DefineTypeWidth("__SIG_ATOMIC_WIDTH__", TI.getSigAtomicType(), TI, Builder);
  DefineTypeSize("__SIG_ATOMIC_MAX__", TI.getSigAtomicType(), TI, Builder);
  DefineType("__CHAR16_TYPE__", TI.getChar16Type(), Builder);
  DefineType("__CHAR32_TYPE__", TI.getChar32Type(), Builder);

  DefineTypeWidth("__UINTMAX_WIDTH__",  TI.getUIntMaxType(), TI, Builder);
  DefineType("__UINTPTR_TYPE__", TI.getUIntPtrType(), Builder);
  DefineFmt("__UINTPTR", TI.getUIntPtrType(), TI, Builder);
  DefineTypeWidth("__UINTPTR_WIDTH__", TI.getUIntPtrType(), TI, Builder);

  DefineFloatMacros(Builder, "FLT", &TI.getFloatFormat(), "F");
  DefineFloatMacros(Builder, "DBL", &TI.getDoubleFormat(), "");
  DefineFloatMacros(Builder, "LDBL", &TI.getLongDoubleFormat(), "L");

  // Define a __POINTER_WIDTH__ macro for stdint.h.
  Builder.defineMacro("__POINTER_WIDTH__",
                      Twine((int)TI.getPointerWidth(0)));

  // Define __BIGGEST_ALIGNMENT__ to be compatible with gcc.
  Builder.defineMacro("__BIGGEST_ALIGNMENT__",
                      Twine(TI.getSuitableAlign() / TI.getCharWidth()) );

  if (!LangOpts.CharIsSigned)
    Builder.defineMacro("__CHAR_UNSIGNED__");

  if (!TargetInfo::isTypeSigned(TI.getWCharType()))
    Builder.defineMacro("__WCHAR_UNSIGNED__");

  if (!TargetInfo::isTypeSigned(TI.getWIntType()))
    Builder.defineMacro("__WINT_UNSIGNED__");

  // Define exact-width integer types for stdint.h
  DefineExactWidthIntType(TargetInfo::SignedChar, TI, Builder);

  if (TI.getShortWidth() > TI.getCharWidth())
    DefineExactWidthIntType(TargetInfo::SignedShort, TI, Builder);

  if (TI.getIntWidth() > TI.getShortWidth())
    DefineExactWidthIntType(TargetInfo::SignedInt, TI, Builder);

  if (TI.getLongWidth() > TI.getIntWidth())
    DefineExactWidthIntType(TargetInfo::SignedLong, TI, Builder);

  if (TI.getLongLongWidth() > TI.getLongWidth())
    DefineExactWidthIntType(TargetInfo::SignedLongLong, TI, Builder);

  DefineExactWidthIntType(TargetInfo::UnsignedChar, TI, Builder);
  DefineExactWidthIntTypeSize(TargetInfo::UnsignedChar, TI, Builder);
  DefineExactWidthIntTypeSize(TargetInfo::SignedChar, TI, Builder);

  if (TI.getShortWidth() > TI.getCharWidth()) {
    DefineExactWidthIntType(TargetInfo::UnsignedShort, TI, Builder);
    DefineExactWidthIntTypeSize(TargetInfo::UnsignedShort, TI, Builder);
    DefineExactWidthIntTypeSize(TargetInfo::SignedShort, TI, Builder);
  }

  if (TI.getIntWidth() > TI.getShortWidth()) {
    DefineExactWidthIntType(TargetInfo::UnsignedInt, TI, Builder);
    DefineExactWidthIntTypeSize(TargetInfo::UnsignedInt, TI, Builder);
    DefineExactWidthIntTypeSize(TargetInfo::SignedInt, TI, Builder);
  }

  if (TI.getLongWidth() > TI.getIntWidth()) {
    DefineExactWidthIntType(TargetInfo::UnsignedLong, TI, Builder);
    DefineExactWidthIntTypeSize(TargetInfo::UnsignedLong, TI, Builder);
    DefineExactWidthIntTypeSize(TargetInfo::SignedLong, TI, Builder);
  }

  if (TI.getLongLongWidth() > TI.getLongWidth()) {
    DefineExactWidthIntType(TargetInfo::UnsignedLongLong, TI, Builder);
    DefineExactWidthIntTypeSize(TargetInfo::UnsignedLongLong, TI, Builder);
    DefineExactWidthIntTypeSize(TargetInfo::SignedLongLong, TI, Builder);
  }

  DefineLeastWidthIntType(8, true, TI, Builder);
  DefineLeastWidthIntType(8, false, TI, Builder);
  DefineLeastWidthIntType(16, true, TI, Builder);
  DefineLeastWidthIntType(16, false, TI, Builder);
  DefineLeastWidthIntType(32, true, TI, Builder);
  DefineLeastWidthIntType(32, false, TI, Builder);
  DefineLeastWidthIntType(64, true, TI, Builder);
  DefineLeastWidthIntType(64, false, TI, Builder);

  DefineFastIntType(8, true, TI, Builder);
  DefineFastIntType(8, false, TI, Builder);
  DefineFastIntType(16, true, TI, Builder);
  DefineFastIntType(16, false, TI, Builder);
  DefineFastIntType(32, true, TI, Builder);
  DefineFastIntType(32, false, TI, Builder);
  DefineFastIntType(64, true, TI, Builder);
  DefineFastIntType(64, false, TI, Builder);

  char UserLabelPrefix[2] = {TI.getDataLayout().getGlobalPrefix(), 0};
  Builder.defineMacro("__USER_LABEL_PREFIX__", UserLabelPrefix);

  if (LangOpts.FastMath || LangOpts.FiniteMathOnly)
    Builder.defineMacro("__FINITE_MATH_ONLY__", "1");
  else
    Builder.defineMacro("__FINITE_MATH_ONLY__", "0");

  if (!LangOpts.MSVCCompat) {
    if (LangOpts.GNUInline || LangOpts.CPlusPlus)
      Builder.defineMacro("__GNUC_GNU_INLINE__");
    else
      Builder.defineMacro("__GNUC_STDC_INLINE__");

    // The value written by __atomic_test_and_set.
    // FIXME: This is target-dependent.
    Builder.defineMacro("__GCC_ATOMIC_TEST_AND_SET_TRUEVAL", "1");

    // Used by libc++ and libstdc++ to implement ATOMIC_<foo>_LOCK_FREE.
    unsigned InlineWidthBits = TI.getMaxAtomicInlineWidth();
#define DEFINE_LOCK_FREE_MACRO(TYPE, Type) \
    Builder.defineMacro("__GCC_ATOMIC_" #TYPE "_LOCK_FREE", \
                        getLockFreeValue(TI.get##Type##Width(), \
                                         TI.get##Type##Align(), \
                                         InlineWidthBits));
    DEFINE_LOCK_FREE_MACRO(BOOL, Bool);
    DEFINE_LOCK_FREE_MACRO(CHAR, Char);
    DEFINE_LOCK_FREE_MACRO(CHAR16_T, Char16);
    DEFINE_LOCK_FREE_MACRO(CHAR32_T, Char32);
    DEFINE_LOCK_FREE_MACRO(WCHAR_T, WChar);
    DEFINE_LOCK_FREE_MACRO(SHORT, Short);
    DEFINE_LOCK_FREE_MACRO(INT, Int);
    DEFINE_LOCK_FREE_MACRO(LONG, Long);
    DEFINE_LOCK_FREE_MACRO(LLONG, LongLong);
    Builder.defineMacro("__GCC_ATOMIC_POINTER_LOCK_FREE",
                        getLockFreeValue(TI.getPointerWidth(0),
                                         TI.getPointerAlign(0),
                                         InlineWidthBits));
#undef DEFINE_LOCK_FREE_MACRO
  }

  if (LangOpts.NoInlineDefine)
    Builder.defineMacro("__NO_INLINE__");

  if (unsigned PICLevel = LangOpts.PICLevel) {
    Builder.defineMacro("__PIC__", Twine(PICLevel));
    Builder.defineMacro("__pic__", Twine(PICLevel));
  }
  if (unsigned PIELevel = LangOpts.PIELevel) {
    Builder.defineMacro("__PIE__", Twine(PIELevel));
    Builder.defineMacro("__pie__", Twine(PIELevel));
  }

  // Macros to control C99 numerics and <float.h>
  Builder.defineMacro("__FLT_EVAL_METHOD__", Twine(TI.getFloatEvalMethod()));
  Builder.defineMacro("__FLT_RADIX__", "2");
  Builder.defineMacro("__DECIMAL_DIG__", "__LDBL_DECIMAL_DIG__");

  if (LangOpts.getStackProtector() == LangOptions::SSPOn)
    Builder.defineMacro("__SSP__");
  else if (LangOpts.getStackProtector() == LangOptions::SSPStrong)
    Builder.defineMacro("__SSP_STRONG__", "2");
  else if (LangOpts.getStackProtector() == LangOptions::SSPReq)
    Builder.defineMacro("__SSP_ALL__", "3");

  // Define a macro that exists only when using the static analyzer.
  if (FEOpts.ProgramAction == frontend::RunAnalysis)
    Builder.defineMacro("__clang_analyzer__");

  if (LangOpts.FastRelaxedMath)
    Builder.defineMacro("__FAST_RELAXED_MATH__");

  if (FEOpts.ProgramAction == frontend::RewriteObjC ||
      LangOpts.getGC() != LangOptions::NonGC) {
    Builder.defineMacro("__weak", "__attribute__((objc_gc(weak)))");
    Builder.defineMacro("__strong", "__attribute__((objc_gc(strong)))");
    Builder.defineMacro("__autoreleasing", "");
    Builder.defineMacro("__unsafe_unretained", "");
  } else if (LangOpts.ObjC1) {
    Builder.defineMacro("__weak", "__attribute__((objc_ownership(weak)))");
    Builder.defineMacro("__strong", "__attribute__((objc_ownership(strong)))");
    Builder.defineMacro("__autoreleasing",
                        "__attribute__((objc_ownership(autoreleasing)))");
    Builder.defineMacro("__unsafe_unretained",
                        "__attribute__((objc_ownership(none)))");
  }

  // On Darwin, there are __double_underscored variants of the type
  // nullability qualifiers.
  if (TI.getTriple().isOSDarwin()) {
    Builder.defineMacro("__nonnull", "_Nonnull");
    Builder.defineMacro("__null_unspecified", "_Null_unspecified");
    Builder.defineMacro("__nullable", "_Nullable");
  }

  // OpenMP definition
  // OpenMP 2.2:
  //   In implementations that support a preprocessor, the _OPENMP
  //   macro name is defined to have the decimal value yyyymm where
  //   yyyy and mm are the year and the month designations of the
  //   version of the OpenMP API that the implementation support.
  switch (LangOpts.OpenMP) {
  case 0:
    break;
  case 40:
    Builder.defineMacro("_OPENMP", "201307");
    break;
  case 45:
    Builder.defineMacro("_OPENMP", "201511");
    break;
  default:
    // Default version is OpenMP 3.1
    Builder.defineMacro("_OPENMP", "201107");
    break;
  }

  // CUDA device path compilaton
  if (LangOpts.CUDAIsDevice) {
    // The CUDA_ARCH value is set for the GPU target specified in the NVPTX
    // backend's target defines.
    Builder.defineMacro("__CUDA_ARCH__");
  }

  // We need to communicate this to our CUDA header wrapper, which in turn
  // informs the proper CUDA headers of this choice.
  if (LangOpts.CUDADeviceApproxTranscendentals || LangOpts.FastMath) {
    Builder.defineMacro("__CLANG_CUDA_APPROX_TRANSCENDENTALS__");
  }

  // OpenCL definitions.
  if (LangOpts.OpenCL) {
#define OPENCLEXT(Ext) \
    if (TI.getSupportedOpenCLOpts().is_##Ext##_supported( \
        LangOpts.OpenCLVersion)) \
      Builder.defineMacro(#Ext);
#include "clang/Basic/OpenCLExtensions.def"
  }

  // Get other target #defines.
  TI.getTargetDefines(LangOpts, Builder);
}
static void InitializePredefinedMacros(const TargetInfo &TI,
                                       const LangOptions &LangOpts,
                                       const FrontendOptions &FEOpts,
                                       MacroBuilder &Builder) {
  // Compiler version introspection macros.
  Builder.defineMacro("__llvm__");  // LLVM Backend
  Builder.defineMacro("__clang__"); // Clang Frontend
#define TOSTR2(X) #X
#define TOSTR(X) TOSTR2(X)
  Builder.defineMacro("__clang_major__", TOSTR(CLANG_VERSION_MAJOR));
  Builder.defineMacro("__clang_minor__", TOSTR(CLANG_VERSION_MINOR));
#ifdef CLANG_VERSION_PATCHLEVEL
  Builder.defineMacro("__clang_patchlevel__", TOSTR(CLANG_VERSION_PATCHLEVEL));
#else
  Builder.defineMacro("__clang_patchlevel__", "0");
#endif
  Builder.defineMacro("__clang_version__", 
                      "\"" CLANG_VERSION_STRING " ("
                      + getClangFullRepositoryVersion() + ")\"");
#undef TOSTR
#undef TOSTR2
  // Currently claim to be compatible with GCC 4.2.1-5621.
  Builder.defineMacro("__GNUC_MINOR__", "2");
  Builder.defineMacro("__GNUC_PATCHLEVEL__", "1");
  Builder.defineMacro("__GNUC__", "4");
  Builder.defineMacro("__GXX_ABI_VERSION", "1002");

  // As sad as it is, enough software depends on the __VERSION__ for version
  // checks that it is necessary to report 4.2.1 (the base GCC version we claim
  // compatibility with) first.
  Builder.defineMacro("__VERSION__", "\"4.2.1 Compatible " + 
                      Twine(getClangFullCPPVersion()) + "\"");

  // Initialize language-specific preprocessor defines.

  // Standard conforming mode?
  if (!LangOpts.GNUMode)
    Builder.defineMacro("__STRICT_ANSI__");

  if (LangOpts.CPlusPlus0x)
    Builder.defineMacro("__GXX_EXPERIMENTAL_CXX0X__");

  if (LangOpts.ObjC1) {
    if (LangOpts.ObjCNonFragileABI) {
      Builder.defineMacro("__OBJC2__");
      
      if (LangOpts.ObjCExceptions)
        Builder.defineMacro("OBJC_ZEROCOST_EXCEPTIONS");
    }

    if (LangOpts.getGC() != LangOptions::NonGC)
      Builder.defineMacro("__OBJC_GC__");

    if (LangOpts.NeXTRuntime)
      Builder.defineMacro("__NEXT_RUNTIME__");
  }

  // darwin_constant_cfstrings controls this. This is also dependent
  // on other things like the runtime I believe.  This is set even for C code.
  if (!LangOpts.NoConstantCFStrings)
      Builder.defineMacro("__CONSTANT_CFSTRINGS__");

  if (LangOpts.ObjC2)
    Builder.defineMacro("OBJC_NEW_PROPERTIES");

  if (LangOpts.PascalStrings)
    Builder.defineMacro("__PASCAL_STRINGS__");

  if (LangOpts.Blocks) {
    Builder.defineMacro("__block", "__attribute__((__blocks__(byref)))");
    Builder.defineMacro("__BLOCKS__");
  }

  if (LangOpts.CXXExceptions)
    Builder.defineMacro("__EXCEPTIONS");
  if (LangOpts.RTTI)
    Builder.defineMacro("__GXX_RTTI");
  if (LangOpts.SjLjExceptions)
    Builder.defineMacro("__USING_SJLJ_EXCEPTIONS__");

  if (LangOpts.Deprecated)
    Builder.defineMacro("__DEPRECATED");

  if (LangOpts.CPlusPlus) {
    Builder.defineMacro("__GNUG__", "4");
    Builder.defineMacro("__GXX_WEAK__");
    Builder.defineMacro("__private_extern__", "extern");
  }

  if (LangOpts.MicrosoftExt) {
    // Both __PRETTY_FUNCTION__ and __FUNCTION__ are GCC extensions, however
    // VC++ appears to only like __FUNCTION__.
    Builder.defineMacro("__PRETTY_FUNCTION__", "__FUNCTION__");
    // Work around some issues with Visual C++ headerws.
    if (LangOpts.CPlusPlus) {
      // Since we define wchar_t in C++ mode.
      Builder.defineMacro("_WCHAR_T_DEFINED");
      Builder.defineMacro("_NATIVE_WCHAR_T_DEFINED");
      // FIXME: Support Microsoft's __identifier extension in the lexer.
      Builder.append("#define __identifier(x) x");
      Builder.append("class type_info;");
    }

    if (LangOpts.CPlusPlus0x) {
      Builder.defineMacro("_HAS_CHAR16_T_LANGUAGE_SUPPORT", "1");
    }
  }

  if (LangOpts.Optimize)
    Builder.defineMacro("__OPTIMIZE__");
  if (LangOpts.OptimizeSize)
    Builder.defineMacro("__OPTIMIZE_SIZE__");

  // Initialize target-specific preprocessor defines.

  // Define type sizing macros based on the target properties.
  assert(TI.getCharWidth() == 8 && "Only support 8-bit char so far");
  Builder.defineMacro("__CHAR_BIT__", "8");

  DefineTypeSize("__SCHAR_MAX__", TI.getCharWidth(), "", true, Builder);
  DefineTypeSize("__SHRT_MAX__", TargetInfo::SignedShort, TI, Builder);
  DefineTypeSize("__INT_MAX__", TargetInfo::SignedInt, TI, Builder);
  DefineTypeSize("__LONG_MAX__", TargetInfo::SignedLong, TI, Builder);
  DefineTypeSize("__LONG_LONG_MAX__", TargetInfo::SignedLongLong, TI, Builder);
  DefineTypeSize("__WCHAR_MAX__", TI.getWCharType(), TI, Builder);
  DefineTypeSize("__INTMAX_MAX__", TI.getIntMaxType(), TI, Builder);

  DefineTypeSizeof("__SIZEOF_DOUBLE__", TI.getDoubleWidth(), TI, Builder);
  DefineTypeSizeof("__SIZEOF_FLOAT__", TI.getFloatWidth(), TI, Builder);
  DefineTypeSizeof("__SIZEOF_INT__", TI.getIntWidth(), TI, Builder);
  DefineTypeSizeof("__SIZEOF_LONG__", TI.getLongWidth(), TI, Builder);
  DefineTypeSizeof("__SIZEOF_LONG_DOUBLE__",TI.getLongDoubleWidth(),TI,Builder);
  DefineTypeSizeof("__SIZEOF_LONG_LONG__", TI.getLongLongWidth(), TI, Builder);
  DefineTypeSizeof("__SIZEOF_POINTER__", TI.getPointerWidth(0), TI, Builder);
  DefineTypeSizeof("__SIZEOF_SHORT__", TI.getShortWidth(), TI, Builder);
  DefineTypeSizeof("__SIZEOF_PTRDIFF_T__",
                   TI.getTypeWidth(TI.getPtrDiffType(0)), TI, Builder);
  DefineTypeSizeof("__SIZEOF_SIZE_T__",
                   TI.getTypeWidth(TI.getSizeType()), TI, Builder);
  DefineTypeSizeof("__SIZEOF_WCHAR_T__",
                   TI.getTypeWidth(TI.getWCharType()), TI, Builder);
  DefineTypeSizeof("__SIZEOF_WINT_T__",
                   TI.getTypeWidth(TI.getWIntType()), TI, Builder);

  DefineType("__INTMAX_TYPE__", TI.getIntMaxType(), Builder);
  DefineType("__UINTMAX_TYPE__", TI.getUIntMaxType(), Builder);
  DefineTypeWidth("__INTMAX_WIDTH__",  TI.getIntMaxType(), TI, Builder);
  DefineType("__PTRDIFF_TYPE__", TI.getPtrDiffType(0), Builder);
  DefineTypeWidth("__PTRDIFF_WIDTH__", TI.getPtrDiffType(0), TI, Builder);
  DefineType("__INTPTR_TYPE__", TI.getIntPtrType(), Builder);
  DefineTypeWidth("__INTPTR_WIDTH__", TI.getIntPtrType(), TI, Builder);
  DefineType("__SIZE_TYPE__", TI.getSizeType(), Builder);
  DefineTypeWidth("__SIZE_WIDTH__", TI.getSizeType(), TI, Builder);
  DefineType("__WCHAR_TYPE__", TI.getWCharType(), Builder);
  DefineTypeWidth("__WCHAR_WIDTH__", TI.getWCharType(), TI, Builder);
  DefineType("__WINT_TYPE__", TI.getWIntType(), Builder);
  DefineTypeWidth("__WINT_WIDTH__", TI.getWIntType(), TI, Builder);
  DefineTypeWidth("__SIG_ATOMIC_WIDTH__", TI.getSigAtomicType(), TI, Builder);
  DefineType("__CHAR16_TYPE__", TI.getChar16Type(), Builder);
  DefineType("__CHAR32_TYPE__", TI.getChar32Type(), Builder);

  DefineFloatMacros(Builder, "FLT", &TI.getFloatFormat());
  DefineFloatMacros(Builder, "DBL", &TI.getDoubleFormat());
  DefineFloatMacros(Builder, "LDBL", &TI.getLongDoubleFormat());

  // Define a __POINTER_WIDTH__ macro for stdint.h.
  Builder.defineMacro("__POINTER_WIDTH__",
                      Twine((int)TI.getPointerWidth(0)));

  if (!LangOpts.CharIsSigned)
    Builder.defineMacro("__CHAR_UNSIGNED__");

  if (!TargetInfo::isTypeSigned(TI.getWIntType()))
    Builder.defineMacro("__WINT_UNSIGNED__");

  if (!TargetInfo::isTypeSigned(TI.getWCharType()))
    Builder.defineMacro("__WCHAR_UNSIGNED__");

  // Define exact-width integer types for stdint.h
  Builder.defineMacro("__INT" + Twine(TI.getCharWidth()) + "_TYPE__",
                      "char");

  if (TI.getShortWidth() > TI.getCharWidth())
    DefineExactWidthIntType(TargetInfo::SignedShort, TI, Builder);

  if (TI.getIntWidth() > TI.getShortWidth())
    DefineExactWidthIntType(TargetInfo::SignedInt, TI, Builder);

  if (TI.getLongWidth() > TI.getIntWidth())
    DefineExactWidthIntType(TargetInfo::SignedLong, TI, Builder);

  if (TI.getLongLongWidth() > TI.getLongWidth())
    DefineExactWidthIntType(TargetInfo::SignedLongLong, TI, Builder);

  // Add __builtin_va_list typedef.
  Builder.append(TI.getVAListDeclaration());

  if (const char *Prefix = TI.getUserLabelPrefix())
    Builder.defineMacro("__USER_LABEL_PREFIX__", Prefix);

  // Build configuration options.  FIXME: these should be controlled by
  // command line options or something.
  Builder.defineMacro("__FINITE_MATH_ONLY__", "0");

  if (LangOpts.GNUInline)
    Builder.defineMacro("__GNUC_GNU_INLINE__");
  else
    Builder.defineMacro("__GNUC_STDC_INLINE__");

  if (LangOpts.NoInline)
    Builder.defineMacro("__NO_INLINE__");

  if (unsigned PICLevel = LangOpts.PICLevel) {
    Builder.defineMacro("__PIC__", Twine(PICLevel));
    Builder.defineMacro("__pic__", Twine(PICLevel));
  }

  // Macros to control C99 numerics and <float.h>
  Builder.defineMacro("__FLT_EVAL_METHOD__", "0");
  Builder.defineMacro("__FLT_RADIX__", "2");
  int Dig = PickFP(&TI.getLongDoubleFormat(), -1/*FIXME*/, 17, 21, 33, 36);
  Builder.defineMacro("__DECIMAL_DIG__", Twine(Dig));

  if (LangOpts.getStackProtector() == LangOptions::SSPOn)
    Builder.defineMacro("__SSP__");
  else if (LangOpts.getStackProtector() == LangOptions::SSPReq)
    Builder.defineMacro("__SSP_ALL__", "2");

  if (FEOpts.ProgramAction == frontend::RewriteObjC)
    Builder.defineMacro("__weak", "__attribute__((objc_gc(weak)))");

  // Define a macro that exists only when using the static analyzer.
  if (FEOpts.ProgramAction == frontend::RunAnalysis)
    Builder.defineMacro("__clang_analyzer__");

  if (LangOpts.FastRelaxedMath)
    Builder.defineMacro("__FAST_RELAXED_MATH__");

  if (LangOpts.ObjCAutoRefCount) {
    Builder.defineMacro("__weak", "__attribute__((objc_ownership(weak)))");
    Builder.defineMacro("__strong", "__attribute__((objc_ownership(strong)))");
    Builder.defineMacro("__autoreleasing",
                        "__attribute__((objc_ownership(autoreleasing)))");
    Builder.defineMacro("__unsafe_unretained",
                        "__attribute__((objc_ownership(none)))");
  }

  // Get other target #defines.
  TI.getTargetDefines(LangOpts, Builder);
}