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Make the X86 subtarget compute the basic target type: ELF, Cygwin, Darwin,

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or native Win32


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24476 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-11-21 22:31:58 +00:00
parent 5df14ca0a1
commit e5600e5509
2 changed files with 24 additions and 15 deletions
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35
lib/Target/X86/X86Subtarget.cpp
View File

@ -21,37 +21,42 @@ X86Subtarget::X86Subtarget(const Module &M, const std::string &FS)
asmLeadingUnderscore(false), asmAlignmentIsInBytes(false),
asmPrintDotLocalConstants(false), asmPrintDotLCommConstants(false),
asmPrintConstantAlignment(false) {
// Declare a boolean for each major platform.
bool forCygwin = false;
bool forDarwin = false;
bool forWindows = false;
// Default to ELF unless otherwise specified.
TargetType = isELF;
// Set the boolean corresponding to the current target triple, or the default
// if one cannot be determined, to true.
const std::string& TT = M.getTargetTriple();
if (TT.length() > 5) {
forCygwin = TT.find("cygwin") != std::string::npos ||
TT.find("mingw") != std::string::npos;
forDarwin = TT.find("darwin") != std::string::npos;
forWindows = TT.find("win32") != std::string::npos;
if (TT.find("cygwin") != std::string::npos ||
TT.find("mingw") != std::string::npos)
TargetType = isCygwin;
else if (TT.find("darwin") != std::string::npos)
TargetType = isDarwin;
else if (TT.find("win32") != std::string::npos)
TargetType = isWindows;
} else if (TT.empty()) {
#if defined(__CYGWIN__) || defined(__MINGW32__)
forCygwin = true;
TargetType = isCygwin;
#elif defined(__APPLE__)
forDarwin = true;
TargetType = isDarwin;
#elif defined(_WIN32)
forWindows = true;
TargetType = isWindows;
#endif
}
if (forCygwin) {
switch (TargetType) {
case isCygwin:
asmLeadingUnderscore = true;
} else if (forDarwin) {
break;
case isDarwin:
stackAlignment = 16;
indirectExternAndWeakGlobals = true;
asmDarwinLinkerStubs = true;
asmLeadingUnderscore = true;
asmPrintDotLCommConstants = true;
} else if (forWindows) {
break;
default: break;
}
}

4
lib/Target/X86/X86Subtarget.h
View File

@ -38,6 +38,10 @@ protected:
bool asmPrintDotLCommConstants;
bool asmPrintConstantAlignment;
public:
enum {
isELF, isCygwin, isDarwin, isWindows
} TargetType;
/// This constructor initializes the data members to match that
/// of the specified module.
///