Remove the isTargetMachO() check and change EORWrr to EORXrr

Author: PanTao2

llvm/lib/Target/AArch64/AArch64ISelLowering.cpp

@@ -29245,7 +29245,6 @@ bool AArch64TargetLowering::useLoadStackGuardNode(const Module &M) const {
 bool AArch64TargetLowering::useStackGuardXorFP() const {
   // Currently only MSVC CRTs XOR the frame pointer into the stack guard value.
   return Subtarget->getTargetTriple().isOSMSVCRT() &&
-         !Subtarget->isTargetMachO() &&
          !getTargetMachine().Options.EnableGlobalISel;
 }
 

llvm/lib/Target/AArch64/AArch64InstrInfo.cpp

@@ -2502,7 +2502,7 @@ bool AArch64InstrInfo::expandPostRAPseudo(MachineInstr &MI) const {
       !Subtarget.getTargetLowering()
            ->getTargetMachine()
            .Options.EnableGlobalISel) {
-    BuildMI(MBB, MI, DL, get(AArch64::EORWrr), Reg)
+    BuildMI(MBB, MI, DL, get(AArch64::EORXrr), Reg)
         .addReg(Reg, RegState::Kill)
         .addReg(AArch64::SP);
   }