C++ TargetInfo::getSizeType方法代码示例

本文整理汇总了C++中TargetInfo::getSizeType方法的典型用法代码示例。如果您正苦于以下问题：C++ TargetInfo::getSizeType方法的具体用法？C++ TargetInfo::getSizeType怎么用？C++ TargetInfo::getSizeType使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类TargetInfo的用法示例。

在下文中一共展示了TargetInfo::getSizeType方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: InitializePredefinedMacros


//.........这里部分代码省略.........
  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__",

开发者ID:OpenKimono，项目名称:clang，代码行数:67，代码来源:InitPreprocessor.cpp

示例2: InitializeStandardPredefinedMacros

static void InitializeStandardPredefinedMacros(const TargetInfo &TI,
                                               const LangOptions &LangOpts,
                                               const FrontendOptions &FEOpts,
                                               MacroBuilder &Builder) {
  if (!LangOpts.MSVCCompat && !LangOpts.TraditionalCPP)
    Builder.defineMacro("__STDC__");
  if (LangOpts.Freestanding)
    Builder.defineMacro("__STDC_HOSTED__", "0");
  else
    Builder.defineMacro("__STDC_HOSTED__");

  if (!LangOpts.CPlusPlus) {
    if (LangOpts.C11)
      Builder.defineMacro("__STDC_VERSION__", "201112L");
    else if (LangOpts.C99)
      Builder.defineMacro("__STDC_VERSION__", "199901L");
    else if (!LangOpts.GNUMode && LangOpts.Digraphs)
      Builder.defineMacro("__STDC_VERSION__", "199409L");
  } else {
    // FIXME: Use correct value for C++17.
    if (LangOpts.CPlusPlus1z)
      Builder.defineMacro("__cplusplus", "201406L");
    // C++1y [cpp.predefined]p1:
    //   The name __cplusplus is defined to the value 201402L when compiling a
    //   C++ translation unit.
    else if (LangOpts.CPlusPlus14)
      Builder.defineMacro("__cplusplus", "201402L");
    // C++11 [cpp.predefined]p1:
    //   The name __cplusplus is defined to the value 201103L when compiling a
    //   C++ translation unit.
    else if (LangOpts.CPlusPlus11)
      Builder.defineMacro("__cplusplus", "201103L");
    // C++03 [cpp.predefined]p1:
    //   The name __cplusplus is defined to the value 199711L when compiling a
    //   C++ translation unit.
    else
      Builder.defineMacro("__cplusplus", "199711L");

    // C++1z [cpp.predefined]p1:
    //   An integer literal of type std::size_t whose value is the alignment
    //   guaranteed by a call to operator new(std::size_t)
    //
    // We provide this in all language modes, since it seems generally useful.
    Builder.defineMacro("__STDCPP_DEFAULT_NEW_ALIGNMENT__",
                        Twine(TI.getNewAlign() / TI.getCharWidth()) +
                            TI.getTypeConstantSuffix(TI.getSizeType()));
  }

  // In C11 these are environment macros. In C++11 they are only defined
  // as part of <cuchar>. To prevent breakage when mixing C and C++
  // code, define these macros unconditionally. We can define them
  // unconditionally, as Clang always uses UTF-16 and UTF-32 for 16-bit
  // and 32-bit character literals.
  Builder.defineMacro("__STDC_UTF_16__", "1");
  Builder.defineMacro("__STDC_UTF_32__", "1");

  if (LangOpts.ObjC1)
    Builder.defineMacro("__OBJC__");

  // OpenCL v1.0/1.1 s6.9, v1.2/2.0 s6.10: Preprocessor Directives and Macros.
  if (LangOpts.OpenCL) {
    // OpenCL v1.0 and v1.1 do not have a predefined macro to indicate the
    // language standard with which the program is compiled. __OPENCL_VERSION__
    // is for the OpenCL version supported by the OpenCL device, which is not
    // necessarily the language standard with which the program is compiled.
    // A shared OpenCL header file requires a macro to indicate the language
    // standard. As a workaround, __OPENCL_C_VERSION__ is defined for
    // OpenCL v1.0 and v1.1.
    switch (LangOpts.OpenCLVersion) {
    case 100:
      Builder.defineMacro("__OPENCL_C_VERSION__", "100");
      break;
    case 110:
      Builder.defineMacro("__OPENCL_C_VERSION__", "110");
      break;
    case 120:
      Builder.defineMacro("__OPENCL_C_VERSION__", "120");
      break;
    case 200:
      Builder.defineMacro("__OPENCL_C_VERSION__", "200");
      break;
    default:
      llvm_unreachable("Unsupported OpenCL version");
    }
    Builder.defineMacro("CL_VERSION_1_0", "100");
    Builder.defineMacro("CL_VERSION_1_1", "110");
    Builder.defineMacro("CL_VERSION_1_2", "120");
    Builder.defineMacro("CL_VERSION_2_0", "200");

    if (TI.isLittleEndian())
      Builder.defineMacro("__ENDIAN_LITTLE__");

    if (LangOpts.FastRelaxedMath)
      Builder.defineMacro("__FAST_RELAXED_MATH__");
  }
  // Not "standard" per se, but available even with the -undef flag.
  if (LangOpts.AsmPreprocessor)
    Builder.defineMacro("__ASSEMBLER__");
  if (LangOpts.CUDA)
    Builder.defineMacro("__CUDA__");
//.........这里部分代码省略.........

开发者ID:wsmoses，项目名称:Cilk-Clang，代码行数:101，代码来源:InitPreprocessor.cpp

示例3: InitializePredefinedMacros


//.........这里部分代码省略.........
  // 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);

开发者ID:clawplach，项目名称:duetto-clang，代码行数:67，代码来源:InitPreprocessor.cpp

示例4: InitializePredefinedMacros


//.........这里部分代码省略.........
      DefineBuiltinMacro(Buf, "_NATIVE_WCHAR_T_DEFINED=1");
      // FIXME:  This should be temporary until we have a __pragma
      // solution, to avoid some errors flagged in VC++ headers.
      DefineBuiltinMacro(Buf, "_CRT_SECURE_CPP_OVERLOAD_SECURE_NAMES=0");
    }
  }

  if (LangOpts.Optimize)
    DefineBuiltinMacro(Buf, "__OPTIMIZE__=1");
  if (LangOpts.OptimizeSize)
    DefineBuiltinMacro(Buf, "__OPTIMIZE_SIZE__=1");

  // 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");
  DefineBuiltinMacro(Buf, "__CHAR_BIT__=8");

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

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

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

  // Define a __POINTER_WIDTH__ macro for stdint.h.
  sprintf(MacroBuf, "__POINTER_WIDTH__=%d", (int)TI.getPointerWidth(0));
  DefineBuiltinMacro(Buf, MacroBuf);

  if (!LangOpts.CharIsSigned)
    DefineBuiltinMacro(Buf, "__CHAR_UNSIGNED__");

  // Define exact-width integer types for stdint.h
  sprintf(MacroBuf, "__INT%d_TYPE__=char", TI.getCharWidth());
  DefineBuiltinMacro(Buf, MacroBuf);

  if (TI.getShortWidth() > TI.getCharWidth())
    DefineExactWidthIntType(TargetInfo::SignedShort, TI, Buf);
                      
  if (TI.getIntWidth() > TI.getShortWidth())
    DefineExactWidthIntType(TargetInfo::SignedInt, TI, Buf);
                              
  if (TI.getLongWidth() > TI.getIntWidth())
    DefineExactWidthIntType(TargetInfo::SignedLong, TI, Buf);
                                      
  if (TI.getLongLongWidth() > TI.getLongWidth())

开发者ID:aaasz，项目名称:SHP，代码行数:67，代码来源:InitPreprocessor.cpp

示例5: InitializePredefinedMacros


//.........这里部分代码省略.........
    }
  }

  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__");

开发者ID:lygstate，项目名称:safecode-mirror，代码行数:67，代码来源:InitPreprocessor.cpp

示例6: InitializePredefinedMacros


//.........这里部分代码省略.........

    // 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");
    DefineBuiltinMacro(Buf, "__CHAR_BIT__=8");

    unsigned IntMaxWidth;
    const char *IntMaxSuffix;
    if (TI.getIntMaxType() == TargetInfo::SignedLongLong) {
        IntMaxWidth = TI.getLongLongWidth();
        IntMaxSuffix = "LL";
    } else if (TI.getIntMaxType() == TargetInfo::SignedLong) {
        IntMaxWidth = TI.getLongWidth();
        IntMaxSuffix = "L";
    } else {
        assert(TI.getIntMaxType() == TargetInfo::SignedInt);
        IntMaxWidth = TI.getIntWidth();
        IntMaxSuffix = "";
    }

    DefineTypeSize("__SCHAR_MAX__", TI.getCharWidth(), "", true, Buf);
    DefineTypeSize("__SHRT_MAX__", TI.getShortWidth(), "", true, Buf);
    DefineTypeSize("__INT_MAX__", TI.getIntWidth(), "", true, Buf);
    DefineTypeSize("__LONG_MAX__", TI.getLongWidth(), "L", true, Buf);
    DefineTypeSize("__LONG_LONG_MAX__", TI.getLongLongWidth(), "LL", true, Buf);
    DefineTypeSize("__WCHAR_MAX__", TI.getWCharWidth(), "", true, Buf);
    DefineTypeSize("__INTMAX_MAX__", IntMaxWidth, IntMaxSuffix, true, Buf);

    DefineType("__INTMAX_TYPE__", TI.getIntMaxType(), Buf);
    DefineType("__UINTMAX_TYPE__", TI.getUIntMaxType(), Buf);
    DefineType("__PTRDIFF_TYPE__", TI.getPtrDiffType(0), Buf);
    DefineType("__INTPTR_TYPE__", TI.getIntPtrType(), Buf);
    DefineType("__SIZE_TYPE__", TI.getSizeType(), Buf);
    DefineType("__WCHAR_TYPE__", TI.getWCharType(), Buf);
    // FIXME: TargetInfo hookize __WINT_TYPE__.
    DefineBuiltinMacro(Buf, "__WINT_TYPE__=int");

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

    // Define a __POINTER_WIDTH__ macro for stdint.h.
    sprintf(MacroBuf, "__POINTER_WIDTH__=%d", (int)TI.getPointerWidth(0));
    DefineBuiltinMacro(Buf, MacroBuf);

    if (!LangOpts.CharIsSigned)
        DefineBuiltinMacro(Buf, "__CHAR_UNSIGNED__");

    // Define fixed-sized integer types for stdint.h
    assert(TI.getCharWidth() == 8 && "unsupported target types");
    assert(TI.getShortWidth() == 16 && "unsupported target types");
    DefineBuiltinMacro(Buf, "__INT8_TYPE__=char");
    DefineBuiltinMacro(Buf, "__INT16_TYPE__=short");

    if (TI.getIntWidth() == 32)
        DefineBuiltinMacro(Buf, "__INT32_TYPE__=int");
    else {
        assert(TI.getLongLongWidth() == 32 && "unsupported target types");
        DefineBuiltinMacro(Buf, "__INT32_TYPE__=long long");
    }

    // 16-bit targets doesn't necessarily have a 64-bit type.
    if (TI.getLongLongWidth() == 64)
        DefineType("__INT64_TYPE__", TI.getInt64Type(), Buf);

开发者ID:Killfrra，项目名称:llvm-kernel，代码行数:66，代码来源:InitPreprocessor.cpp

注：本文中的TargetInfo::getSizeType方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。