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darwin9 and above support aligned common symbols.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45494 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2008-01-02 19:44:55 +00:00
parent 564da5d646
commit 7ad92d81e2
3 changed files with 37 additions and 13 deletions
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34
lib/Target/X86/X86Subtarget.cpp
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@@ -221,6 +221,7 @@ X86Subtarget::X86Subtarget(const Module &M, const std::string &FS, bool is64Bit)
, PICStyle(PICStyle::None)
, X86SSELevel(NoMMXSSE)
, HasX86_64(false)
, DarwinVers(0)
, stackAlignment(8)
// FIXME: this is a known good value for Yonah. How about others?
, MaxInlineSizeThreshold(128)
@@ -256,14 +257,22 @@ X86Subtarget::X86Subtarget(const Module &M, const std::string &FS, bool is64Bit)
// if one cannot be determined, to true.
const std::string& TT = M.getTargetTriple();
if (TT.length() > 5) {
if (TT.find("cygwin") != std::string::npos)
TargetType = isCygwin;
else if (TT.find("mingw") != std::string::npos)
TargetType = isMingw;
else if (TT.find("darwin") != std::string::npos)
unsigned Pos;
if ((Pos = TT.find("-darwin")) != std::string::npos) {
TargetType = isDarwin;
else if (TT.find("win32") != std::string::npos)
// Compute the darwin version number.
if (isdigit(TT[Pos+7]))
DarwinVers = atoi(&TT[Pos+7]);
else
DarwinVers = 8; // Minimum supported darwin is Tiger.
} else if (TT.find("cygwin") != std::string::npos) {
TargetType = isCygwin;
} else if (TT.find("mingw") != std::string::npos) {
TargetType = isMingw;
} else if (TT.find("win32") != std::string::npos) {
TargetType = isWindows;
}
} else if (TT.empty()) {
#if defined(__CYGWIN__)
TargetType = isCygwin;
@@ -271,6 +280,12 @@ X86Subtarget::X86Subtarget(const Module &M, const std::string &FS, bool is64Bit)
TargetType = isMingw;
#elif defined(__APPLE__)
TargetType = isDarwin;
#if __APPLE_CC__ > 5400
DarwinVers = 9; // GCC 5400+ is Leopard.
#else
DarwinVers = 8; // Minimum supported darwin is Tiger.
#endif
#elif defined(_WIN32)
TargetType = isWindows;
#endif
@@ -279,11 +294,8 @@ X86Subtarget::X86Subtarget(const Module &M, const std::string &FS, bool is64Bit)
// If the asm syntax hasn't been overridden on the command line, use whatever
// the target wants.
if (AsmFlavor == X86Subtarget::Unset) {
if (TargetType == isWindows) {
AsmFlavor = X86Subtarget::Intel;
} else {
AsmFlavor = X86Subtarget::ATT;
}
AsmFlavor = (TargetType == isWindows)
? X86Subtarget::Intel : X86Subtarget::ATT;
}
if (TargetType == isDarwin && Is64Bit)