112   case SystemZ::LR:  in preservesValueOf()
113   case SystemZ::LGR:  in preservesValueOf()
114   case SystemZ::LGFR:  in preservesValueOf()
115   case SystemZ::LTR:  in preservesValueOf()
116   case SystemZ::LTGR:  in preservesValueOf()
117   case SystemZ::LTGFR:  in preservesValueOf()
161   return (MI.getOpcode() == SystemZ::LTEBR ||  in isLoadAndTestAsCmp()
162           MI.getOpcode() == SystemZ::LTDBR ||  in isLoadAndTestAsCmp()
163           MI.getOpcode() == SystemZ::LTXBR) &&  in isLoadAndTestAsCmp()
189   if (Opcode == SystemZ::AHI)  in convertToBRCT()
190     BRCT = SystemZ::BRCT;  in convertToBRCT()
191   else if (Opcode == SystemZ::AGHI)  in convertToBRCT()
192     BRCT = SystemZ::BRCTG;  in convertToBRCT()
193   else if (Opcode == SystemZ::AIH)  in convertToBRCT()
194     BRCT = SystemZ::BRCTH;  in convertToBRCT()
204   if (Branch->getOpcode() != SystemZ::BRC ||  in convertToBRCT()
205       Branch->getOperand(0).getImm() != SystemZ::CCMASK_ICMP ||  in convertToBRCT()
206       Branch->getOperand(1).getImm() != SystemZ::CCMASK_CMP_NE)  in convertToBRCT()
228   if (BRCT != SystemZ::BRCTH)  in convertToBRCT()
229     MIB.addReg(SystemZ::CC, RegState::ImplicitDefine | RegState::Dead);  in convertToBRCT()
248   if (Branch->getOpcode() != SystemZ::CondTrap ||  in convertToLoadAndTrap()
249       Branch->getOperand(0).getImm() != SystemZ::CCMASK_ICMP ||  in convertToLoadAndTrap()
250       Branch->getOperand(1).getImm() != SystemZ::CCMASK_CMP_EQ)  in convertToLoadAndTrap()
311   case SystemZ::AR:   ConvOpc = SystemZ::ALR;   break;  in convertToLogical()
312   case SystemZ::ARK:  ConvOpc = SystemZ::ALRK;  break;  in convertToLogical()
313   case SystemZ::AGR:  ConvOpc = SystemZ::ALGR;  break;  in convertToLogical()
314   case SystemZ::AGRK: ConvOpc = SystemZ::ALGRK; break;  in convertToLogical()
315   case SystemZ::A:    ConvOpc = SystemZ::AL;    break;  in convertToLogical()
316   case SystemZ::AY:   ConvOpc = SystemZ::ALY;   break;  in convertToLogical()
317   case SystemZ::AG:   ConvOpc = SystemZ::ALG;   break;  in convertToLogical()
326   MI.clearRegisterDeads(SystemZ::CC);  in convertToLogical()
333   case SystemZ::AHI:  in isAddWithImmediate()
334   case SystemZ::AHIK:  in isAddWithImmediate()
335   case SystemZ::AGHI:  in isAddWithImmediate()
336   case SystemZ::AGHIK:  in isAddWithImmediate()
337   case SystemZ::AFI:  in isAddWithImmediate()
338   case SystemZ::AIH:  in isAddWithImmediate()
339   case SystemZ::AGFI:  in isAddWithImmediate()
380     ReusableCCMask &= SystemZ::CCMASK_CMP_EQ;  in adjustCCMasksForInstr()
400     if (SystemZ::GRX32BitRegClass.contains(MI.getOperand(0).getReg()) &&  in adjustCCMasksForInstr()
403     OFImplies = (RHS > 0 ? SystemZ::CCMASK_CMP_LT : SystemZ::CCMASK_CMP_GT);  in adjustCCMasksForInstr()
409     ReusableCCMask = SystemZ::CCMASK_CMP_EQ;  in adjustCCMasksForInstr()
456         CCMask = (CCMask == SystemZ::CCMASK_CMP_EQ ?  in adjustCCMasksForInstr()
457                   SystemZ::CCMASK_LOGICAL_ZERO : SystemZ::CCMASK_LOGICAL_NONZERO);  in adjustCCMasksForInstr()
462         CCMask |= (CCMask & OFImplies) ? SystemZ::CCMASK_ARITH_OVERFLOW : 0;  in adjustCCMasksForInstr()
470     MI.clearRegisterDeads(SystemZ::CC);  in adjustCCMasksForInstr()
485       MBBI->clearRegisterKills(SystemZ::CC, TRI);  in adjustCCMasksForInstr()
543     CCRefs |= getRegReferences(MI, SystemZ::CC);  in optimizeCompareZero()
569     if (getRegReferences(MI, SystemZ::CC))  in optimizeCompareZero()
586   case SystemZ::BRC:  in fuseCompareOperations()
589   case SystemZ::CondReturn:  in fuseCompareOperations()
592   case SystemZ::CallBCR:  in fuseCompareOperations()
595   case SystemZ::CondTrap:  in fuseCompareOperations()
623   assert((CCMask.getImm() & ~SystemZ::CCMASK_ICMP) == 0 &&  in fuseCompareOperations()
634   int CCUse = MBBI->findRegisterUseOperandIdx(SystemZ::CC, TRI, false);  in fuseCompareOperations()
651   if (FusedOpcode == SystemZ::CLT || FusedOpcode == SystemZ::CLGT)  in fuseCompareOperations()
663     MIB.add(Target).addReg(SystemZ::CC,  in fuseCompareOperations()
693   bool CompleteCCUsers = LiveRegs.available(SystemZ::CC);  in processBlock()
708     if (MI.definesRegister(SystemZ::CC, /*TRI=*/nullptr)) {  in processBlock()
712     if (MI.readsRegister(SystemZ::CC, /*TRI=*/nullptr) && CompleteCCUsers)  in processBlock()