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Introduce TargetType's ELF and Darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33363 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -22,8 +22,12 @@ static cl::opt<bool> Thumb("enable-thumb",
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cl::desc("Switch to thumb mode in ARM backend"));
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ARMSubtarget::ARMSubtarget(const Module &M, const std::string &FS)
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: ARMArchVersion(V4T), HasVFP2(false), IsDarwin(false),
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UseThumbBacktraces(false), IsR9Reserved(false), stackAlignment(8) {
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: ARMArchVersion(V4T)
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, HasVFP2(false)
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, UseThumbBacktraces(false)
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, IsR9Reserved(false)
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, stackAlignment(8)
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, TargetType(isELF) { // Default to ELF unless otherwise specified.
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// Determine default and user specified characteristics
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std::string CPU = "generic";
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@ -37,14 +41,15 @@ ARMSubtarget::ARMSubtarget(const Module &M, const std::string &FS)
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// if one cannot be determined, to true.
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const std::string& TT = M.getTargetTriple();
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if (TT.length() > 5) {
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IsDarwin = TT.find("-darwin") != std::string::npos;
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if (TT.find("-darwin") != std::string::npos)
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TargetType = isDarwin;
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} else if (TT.empty()) {
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#if defined(__APPLE__)
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IsDarwin = true;
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TargetType = isDarwin;
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#endif
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}
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if (IsDarwin) {
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if (isTargetDarwin()) {
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UseThumbBacktraces = true;
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IsR9Reserved = true;
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stackAlignment = 4;
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@ -37,8 +37,6 @@ protected:
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/// IsThumb - True if we are in thumb mode, false if in ARM mode.
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bool IsThumb;
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bool IsDarwin;
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/// UseThumbBacktraces - True if we use thumb style backtraces.
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bool UseThumbBacktraces;
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@ -50,6 +48,10 @@ protected:
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unsigned stackAlignment;
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public:
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enum {
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isELF, isDarwin
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} TargetType;
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/// This constructor initializes the data members to match that
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/// of the specified module.
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///
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@ -66,7 +68,9 @@ protected:
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bool hasVFP2() const { return HasVFP2; }
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bool isDarwin() const { return IsDarwin; }
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bool isTargetDarwin() const { return TargetType == isDarwin; }
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bool isTargetELF() const { return TargetType == isELF; }
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bool isThumb() const { return IsThumb; }
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bool useThumbBacktraces() const { return UseThumbBacktraces; }
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