Sparc: Remove TargetTriple member from SparcSubtarget (#157397)

Author: arsenm

llvm/lib/Target/Sparc/SparcISelLowering.cpp

@@ -3510,7 +3510,7 @@ void SparcTargetLowering::ReplaceNodeResults(SDNode *N,
 
 // Override to enable LOAD_STACK_GUARD lowering on Linux.
 bool SparcTargetLowering::useLoadStackGuardNode(const Module &M) const {
-  if (!Subtarget->isTargetLinux())
+  if (!Subtarget->getTargetTriple().isOSLinux())
     return TargetLowering::useLoadStackGuardNode(M);
   return true;
 }

llvm/lib/Target/Sparc/SparcInstrInfo.cpp

@@ -643,7 +643,7 @@ unsigned SparcInstrInfo::getInstSizeInBytes(const MachineInstr &MI) const {
 bool SparcInstrInfo::expandPostRAPseudo(MachineInstr &MI) const {
   switch (MI.getOpcode()) {
   case TargetOpcode::LOAD_STACK_GUARD: {
-    assert(Subtarget.isTargetLinux() &&
+    assert(Subtarget.getTargetTriple().isOSLinux() &&
            "Only Linux target is expected to contain LOAD_STACK_GUARD");
     // offsetof(tcbhead_t, stack_guard) from sysdeps/sparc/nptl/tls.h in glibc.
     const int64_t Offset = Subtarget.is64Bit() ? 0x28 : 0x14;

llvm/lib/Target/Sparc/SparcSubtarget.cpp

@@ -50,8 +50,7 @@ SparcSubtarget::SparcSubtarget(const StringRef &CPU, const StringRef &TuneCPU,
                                const StringRef &FS, const TargetMachine &TM,
                                bool is64Bit)
     : SparcGenSubtargetInfo(TM.getTargetTriple(), CPU, TuneCPU, FS),
-      ReserveRegister(TM.getMCRegisterInfo()->getNumRegs()),
-      TargetTriple(TM.getTargetTriple()), Is64Bit(is64Bit),
+      ReserveRegister(TM.getMCRegisterInfo()->getNumRegs()), Is64Bit(is64Bit),
       InstrInfo(initializeSubtargetDependencies(CPU, TuneCPU, FS)),
       TLInfo(TM, *this), FrameLowering(*this) {
   TSInfo = std::make_unique<SparcSelectionDAGInfo>();

llvm/lib/Target/Sparc/SparcSubtarget.h

@@ -34,7 +34,6 @@ class SparcSubtarget : public SparcGenSubtargetInfo {
   // register.
   BitVector ReserveRegister;
 
-  Triple TargetTriple;
   virtual void anchor();
 
   bool Is64Bit;
@@ -96,8 +95,6 @@ class SparcSubtarget : public SparcGenSubtargetInfo {
   /// returns adjusted framesize which includes space for register window
   /// spills and arguments.
   int getAdjustedFrameSize(int stackSize) const;
-
-  bool isTargetLinux() const { return TargetTriple.isOSLinux(); }
 };
 
 } // end namespace llvm