653   Register ScratchReg;  in emitPrologue()  local
686       &MBB, false, twoUniqueScratchRegsRequired(&MBB), &ScratchReg, &TempReg);  in emitPrologue()
690   SingleScratchReg = ScratchReg == TempReg;  in emitPrologue()
814     BuildMI(MBB, MBBI, dl, MFLRInst, ScratchReg);  in emitPrologue()
842         .addReg(ScratchReg, getKillRegState(!HasROPProtect))  in emitPrologue()
860           .addReg(ScratchReg, getKillRegState(true))  in emitPrologue()
903         .addDef(ScratchReg) // ScratchReg stores the old sp.  in emitPrologue()
909       BuildMI(MBB, MBBI, dl, TII.get(PPC::SUBF), ScratchReg)  in emitPrologue()
910           .addReg(ScratchReg)  in emitPrologue()
918         BuildMI(MBB, MBBI, dl, TII.get(PPC::RLDICL), ScratchReg)  in emitPrologue()
923         BuildMI(MBB, MBBI, dl, TII.get(PPC::RLWINM), ScratchReg)  in emitPrologue()
929         BuildMI(MBB, MBBI, dl, SubtractImmCarryingInst, ScratchReg)  in emitPrologue()
930             .addReg(ScratchReg, RegState::Kill)  in emitPrologue()
935         BuildMI(MBB, MBBI, dl, SubtractCarryingInst, ScratchReg)  in emitPrologue()
936             .addReg(ScratchReg, RegState::Kill)  in emitPrologue()
943           .addReg(ScratchReg);  in emitPrologue()
953       TII.materializeImmPostRA(MBB, MBBI, dl, ScratchReg, NegFrameSize);  in emitPrologue()
957           .addReg(ScratchReg);  in emitPrologue()
985       BuildMI(MBB, MBBI, dl, TII.get(PPC::SUBF), ScratchReg)  in emitPrologue()
986         .addReg(ScratchReg, RegState::Kill)  in emitPrologue()
989       if (ScratchReg == PPC::R0) {  in emitPrologue()
996           BuildMI(MBB, MBBI, dl, TII.get(PPC::ADDIC), ScratchReg)  in emitPrologue()
997             .addReg(ScratchReg)  in emitPrologue()
1004             .addReg(ScratchReg);  // This will be the index (R0 is ok here).  in emitPrologue()
1008           BuildMI(MBB, MBBI, dl, TII.get(PPC::ADDIC), ScratchReg)  in emitPrologue()
1009             .addReg(ScratchReg)  in emitPrologue()
1015             .addReg(ScratchReg);  // This will be the index (R0 is ok here).  in emitPrologue()
1019           BuildMI(MBB, MBBI, dl, TII.get(PPC::ADDIC), ScratchReg)  in emitPrologue()
1020             .addReg(ScratchReg)  in emitPrologue()
1026             .addReg(ScratchReg);  // This will be the index (R0 is ok here).  in emitPrologue()
1029             .addReg(ScratchReg, RegState::Kill)  in emitPrologue()
1042             .addReg(ScratchReg);  in emitPrologue()
1047             .addReg(ScratchReg);  in emitPrologue()
1052             .addReg(ScratchReg);  in emitPrologue()
1054             .addReg(ScratchReg, RegState::Kill)  in emitPrologue()
1055             .addReg(ScratchReg);  in emitPrologue()
1247   Register ScratchReg = MI.getOperand(0).getReg();  in inlineStackProbe()  local
1335                                  Register ScratchReg, Register TempReg) {  in inlineStackProbe()  argument
1377       allocateAndProbe(*ProbeExitMBB, ProbeExitMBB->end(), 0, ScratchReg, false,  in inlineStackProbe()
1390       BuildMI(&MBB, DL, TII.get(isPPC64 ? PPC::SUBF8 : PPC::SUBF), ScratchReg)  in inlineStackProbe()
1396           .addReg(ScratchReg)  in inlineStackProbe()
1411               ScratchReg)  in inlineStackProbe()
1412           .addReg(ScratchReg)  in inlineStackProbe()
1416           .addReg(ScratchReg)  in inlineStackProbe()
1436       BuildMI(*CurrentMBB, {MI}, DL, TII.get(PPC::RLDICL), ScratchReg)  in inlineStackProbe()
1441       BuildMI(*CurrentMBB, {MI}, DL, TII.get(PPC::RLWINM), ScratchReg)  in inlineStackProbe()
1448         .addReg(ScratchReg)  in inlineStackProbe()
1450     MaterializeImm(*CurrentMBB, {MI}, NegFrameSize, ScratchReg);  in inlineStackProbe()
1453         .addReg(ScratchReg)  in inlineStackProbe()
1455     CurrentMBB = probeRealignedStack(*CurrentMBB, {MI}, ScratchReg, FPReg);  in inlineStackProbe()
1468         MaterializeImm(*CurrentMBB, {MI}, NegResidualSize, ScratchReg);  in inlineStackProbe()
1469       allocateAndProbe(*CurrentMBB, {MI}, NegResidualSize, ScratchReg,  in inlineStackProbe()
1476         MaterializeImm(*CurrentMBB, {MI}, NegProbeSize, ScratchReg);  in inlineStackProbe()
1478         allocateAndProbe(*CurrentMBB, {MI}, NegProbeSize, ScratchReg, UseDForm,  in inlineStackProbe()
1489       MaterializeImm(*CurrentMBB, {MI}, NumBlocks, ScratchReg);  in inlineStackProbe()
1491           .addReg(ScratchReg, RegState::Kill);  in inlineStackProbe()
1493         MaterializeImm(*CurrentMBB, {MI}, NegProbeSize, ScratchReg);  in inlineStackProbe()
1502       allocateAndProbe(*LoopMBB, LoopMBB->end(), NegProbeSize, ScratchReg,  in inlineStackProbe()
1562   Register ScratchReg;  in emitEpilogue()  local
1590   bool SingleScratchReg = findScratchRegister(&MBB, true, false, &ScratchReg,  in emitEpilogue()
1595   SingleScratchReg = ScratchReg == TempReg;  in emitEpilogue()
1718         TII.materializeImmPostRA(MBB, MBBI, dl, ScratchReg, FrameSize);  in emitEpilogue()
1722           .addReg(ScratchReg);  in emitEpilogue()
1745           BuildMI(MBB, MBBI, dl, OrInst, ScratchReg)  in emitEpilogue()
1755   assert(RBReg != ScratchReg && "Should have avoided ScratchReg");  in emitEpilogue()
1780     BuildMI(MBB, StackUpdateLoc, dl, LoadInst, ScratchReg)  in emitEpilogue()
1801       BuildMI(MBB, MBBI, dl, LoadInst, ScratchReg)  in emitEpilogue()
1830     assert(RBReg != ScratchReg && "Should be using FP or SP as base register");  in emitEpilogue()
1833         .addReg(ScratchReg)  in emitEpilogue()
1834         .addReg(ScratchReg);  in emitEpilogue()
1838       BuildMI(MBB, MBBI, dl, LoadInst, ScratchReg)  in emitEpilogue()
1860           .addReg(ScratchReg)  in emitEpilogue()
1864     BuildMI(MBB, StackUpdateLoc, dl, MTLRInst).addReg(ScratchReg);  in emitEpilogue()
1881         BuildMI(MBB, MBBI, dl, LoadImmShiftedInst, ScratchReg)  in emitEpilogue()
1883         BuildMI(MBB, MBBI, dl, OrImmInst, ScratchReg)  in emitEpilogue()
1884           .addReg(ScratchReg, RegState::Kill)  in emitEpilogue()
1889           .addReg(ScratchReg);  in emitEpilogue()