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Export __INT8_TYPE__ / __INT16_TYPE__ / __INT32_TYPE__ / __INT64_TYPE__ 

in a gcc 4.5 compatible way so that stdint.h can follow the compiler's 
notion of types.

llvm-svn: 63976
This commit is contained in:
Chris Lattner 2009-02-06 22:59:26 +00:00
parent 706a6a9cbf
commit 0763cc6bfd
1 changed files with 29 additions and 8 deletions
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37
clang/lib/Lex/Preprocessor.cpp
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@ -438,6 +438,7 @@ static void DefineType(const char *MacroName, TargetInfo::IntType Ty,
static void InitializePredefinedMacros(Preprocessor &PP,
std::vector<char> &Buf) {
char MacroBuf[60];
// Compiler version introspection macros.
DefineBuiltinMacro(Buf, "__llvm__=1"); // LLVM Backend
DefineBuiltinMacro(Buf, "__clang__=1"); // Clang Frontend
@ -512,10 +513,10 @@ static void InitializePredefinedMacros(Preprocessor &PP,
// mode.
if (PP.getLangOptions().Microsoft) {
DefineBuiltinMacro(Buf, "_cdecl=__cdecl");
DefineBuiltinMacro(Buf, "__int8=char");
DefineBuiltinMacro(Buf, "__int16=short");
DefineBuiltinMacro(Buf, "__int32=int");
DefineBuiltinMacro(Buf, "__int64=long long");
DefineBuiltinMacro(Buf, "__int8=__INT8_TYPE__");
DefineBuiltinMacro(Buf, "__int16=__INT16_TYPE__");
DefineBuiltinMacro(Buf, "__int32=__INT32_TYPE__");
DefineBuiltinMacro(Buf, "__int64=__INT64_TYPE__");
}
// Initialize target-specific preprocessor defines.
@ -559,6 +560,30 @@ static void InitializePredefinedMacros(Preprocessor &PP,
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 (!TI.isCharSigned())
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)
DefineBuiltinMacro(Buf, "__INT64_TYPE__=long long");
// Add __builtin_va_list typedef.
{
const char *VAList = TI.getVAListDeclaration();
@ -566,15 +591,11 @@ static void InitializePredefinedMacros(Preprocessor &PP,
Buf.push_back('\n');
}
char MacroBuf[60];
if (const char *Prefix = TI.getUserLabelPrefix()) {
sprintf(MacroBuf, "__USER_LABEL_PREFIX__=%s", Prefix);
DefineBuiltinMacro(Buf, MacroBuf);
}
if (!TI.isCharSigned())
DefineBuiltinMacro(Buf, "__CHAR_UNSIGNED__");
// Build configuration options. FIXME: these should be controlled by
// command line options or something.
DefineBuiltinMacro(Buf, "__DYNAMIC__=1");