1440     MachineInstr &CmpInstr, Register SrcReg, Register SrcReg2, int CmpMask,  in optimizeCompareInstr()  argument
1442   assert(CmpInstr.getParent());  in optimizeCompareInstr()
1446   int DeadNZCVIdx = CmpInstr.findRegisterDefOperandIdx(AArch64::NZCV, true);  in optimizeCompareInstr()
1448     if (CmpInstr.definesRegister(AArch64::WZR) ||  in optimizeCompareInstr()
1449         CmpInstr.definesRegister(AArch64::XZR)) {  in optimizeCompareInstr()
1450       CmpInstr.eraseFromParent();  in optimizeCompareInstr()
1453     unsigned Opc = CmpInstr.getOpcode();  in optimizeCompareInstr()
1454     unsigned NewOpc = convertToNonFlagSettingOpc(CmpInstr);  in optimizeCompareInstr()
1458     CmpInstr.setDesc(MCID);  in optimizeCompareInstr()
1459     CmpInstr.RemoveOperand(DeadNZCVIdx);  in optimizeCompareInstr()
1460     bool succeeded = UpdateOperandRegClass(CmpInstr);  in optimizeCompareInstr()
1466   if (CmpInstr.getOpcode() == AArch64::PTEST_PP)  in optimizeCompareInstr()
1467     return optimizePTestInstr(&CmpInstr, SrcReg, SrcReg2, MRI);  in optimizeCompareInstr()
1476   if (!MRI->use_nodbg_empty(CmpInstr.getOperand(0).getReg()))  in optimizeCompareInstr()
1479   if (CmpValue == 0 && substituteCmpToZero(CmpInstr, SrcReg, *MRI))  in optimizeCompareInstr()
1482          removeCmpToZeroOrOne(CmpInstr, SrcReg, CmpValue, *MRI);  in optimizeCompareInstr()
1655 examineCFlagsUse(MachineInstr &MI, MachineInstr &CmpInstr,  in examineCFlagsUse()  argument
1658   MachineBasicBlock *CmpParent = CmpInstr.getParent();  in examineCFlagsUse()
1667            std::next(CmpInstr.getIterator()), CmpParent->instr_end())) {  in examineCFlagsUse()
1703 static bool canInstrSubstituteCmpInstr(MachineInstr &MI, MachineInstr &CmpInstr,  in canInstrSubstituteCmpInstr()  argument
1707   const unsigned CmpOpcode = CmpInstr.getOpcode();  in canInstrSubstituteCmpInstr()
1711   if (!examineCFlagsUse(MI, CmpInstr, TRI))  in canInstrSubstituteCmpInstr()
1717   return !areCFlagsAccessedBetweenInstrs(&MI, &CmpInstr, &TRI, AccessToCheck);  in canInstrSubstituteCmpInstr()
1725     MachineInstr &CmpInstr, unsigned SrcReg,  in substituteCmpToZero()  argument
1738   if (!canInstrSubstituteCmpInstr(*MI, CmpInstr, TRI))  in substituteCmpToZero()
1743   CmpInstr.eraseFromParent();  in substituteCmpToZero()
1755 static bool canCmpInstrBeRemoved(MachineInstr &MI, MachineInstr &CmpInstr,  in canCmpInstrBeRemoved()  argument
1784   const unsigned CmpOpcode = CmpInstr.getOpcode();  in canCmpInstrBeRemoved()
1797       examineCFlagsUse(MI, CmpInstr, TRI, &CCUseInstrs);  in canCmpInstrBeRemoved()
1811   if (areCFlagsAccessedBetweenInstrs(&MI, &CmpInstr, &TRI, AK_Write))  in canCmpInstrBeRemoved()
1850     MachineInstr &CmpInstr, unsigned SrcReg, int CmpValue,  in removeCmpToZeroOrOne()  argument
1858   if (!canCmpInstrBeRemoved(*MI, CmpInstr, CmpValue, TRI, CCUseInstrs,  in removeCmpToZeroOrOne()
1862   CmpInstr.eraseFromParent();  in removeCmpToZeroOrOne()