657   Register ScratchReg;  in emitPrologue()  local
690       &MBB, false, twoUniqueScratchRegsRequired(&MBB), &ScratchReg, &TempReg);  in emitPrologue()
694   SingleScratchReg = ScratchReg == TempReg;  in emitPrologue()
818     BuildMI(MBB, MBBI, dl, MFLRInst, ScratchReg);  in emitPrologue()
847         .addReg(ScratchReg, getKillRegState(!HasROPProtect))  in emitPrologue()
865           .addReg(ScratchReg, getKillRegState(true))  in emitPrologue()
925         .addDef(ScratchReg) // ScratchReg stores the old sp.  in emitPrologue()
931       BuildMI(MBB, MBBI, dl, TII.get(PPC::SUBF), ScratchReg)  in emitPrologue()
932           .addReg(ScratchReg)  in emitPrologue()
939         BuildMI(MBB, MBBI, dl, TII.get(PPC::RLDICL), ScratchReg)  in emitPrologue()
944         BuildMI(MBB, MBBI, dl, TII.get(PPC::RLWINM), ScratchReg)  in emitPrologue()
950         BuildMI(MBB, MBBI, dl, SubtractImmCarryingInst, ScratchReg)  in emitPrologue()
951             .addReg(ScratchReg, RegState::Kill)  in emitPrologue()
956         BuildMI(MBB, MBBI, dl, SubtractCarryingInst, ScratchReg)  in emitPrologue()
957             .addReg(ScratchReg, RegState::Kill)  in emitPrologue()
964           .addReg(ScratchReg);  in emitPrologue()
971       TII.materializeImmPostRA(MBB, MBBI, dl, ScratchReg, NegFrameSize);  in emitPrologue()
975           .addReg(ScratchReg);  in emitPrologue()
1002       BuildMI(MBB, MBBI, dl, TII.get(PPC::SUBF), ScratchReg)  in emitPrologue()
1003         .addReg(ScratchReg, RegState::Kill)  in emitPrologue()
1006       if (ScratchReg == PPC::R0) {  in emitPrologue()
1013           BuildMI(MBB, MBBI, dl, TII.get(PPC::ADDIC), ScratchReg)  in emitPrologue()
1014             .addReg(ScratchReg)  in emitPrologue()
1021             .addReg(ScratchReg);  // This will be the index (R0 is ok here).  in emitPrologue()
1025           BuildMI(MBB, MBBI, dl, TII.get(PPC::ADDIC), ScratchReg)  in emitPrologue()
1026             .addReg(ScratchReg)  in emitPrologue()
1032             .addReg(ScratchReg);  // This will be the index (R0 is ok here).  in emitPrologue()
1036           BuildMI(MBB, MBBI, dl, TII.get(PPC::ADDIC), ScratchReg)  in emitPrologue()
1037             .addReg(ScratchReg)  in emitPrologue()
1043             .addReg(ScratchReg);  // This will be the index (R0 is ok here).  in emitPrologue()
1046             .addReg(ScratchReg, RegState::Kill)  in emitPrologue()
1059             .addReg(ScratchReg);  in emitPrologue()
1064             .addReg(ScratchReg);  in emitPrologue()
1069             .addReg(ScratchReg);  in emitPrologue()
1071             .addReg(ScratchReg, RegState::Kill)  in emitPrologue()
1072             .addReg(ScratchReg);  in emitPrologue()
1261   Register ScratchReg = MI.getOperand(0).getReg();  in inlineStackProbe()  local
1349                                  Register ScratchReg, Register TempReg) {  in inlineStackProbe()  argument
1391       allocateAndProbe(*ProbeExitMBB, ProbeExitMBB->end(), 0, ScratchReg, false,  in inlineStackProbe()
1404       BuildMI(&MBB, DL, TII.get(isPPC64 ? PPC::SUBF8 : PPC::SUBF), ScratchReg)  in inlineStackProbe()
1410           .addReg(ScratchReg)  in inlineStackProbe()
1425               ScratchReg)  in inlineStackProbe()
1426           .addReg(ScratchReg)  in inlineStackProbe()
1430           .addReg(ScratchReg)  in inlineStackProbe()
1449       BuildMI(*CurrentMBB, {MI}, DL, TII.get(PPC::RLDICL), ScratchReg)  in inlineStackProbe()
1454       BuildMI(*CurrentMBB, {MI}, DL, TII.get(PPC::RLWINM), ScratchReg)  in inlineStackProbe()
1461         .addReg(ScratchReg)  in inlineStackProbe()
1463     MaterializeImm(*CurrentMBB, {MI}, NegFrameSize, ScratchReg);  in inlineStackProbe()
1466         .addReg(ScratchReg)  in inlineStackProbe()
1468     CurrentMBB = probeRealignedStack(*CurrentMBB, {MI}, ScratchReg, FPReg);  in inlineStackProbe()
1481         MaterializeImm(*CurrentMBB, {MI}, NegResidualSize, ScratchReg);  in inlineStackProbe()
1482       allocateAndProbe(*CurrentMBB, {MI}, NegResidualSize, ScratchReg,  in inlineStackProbe()
1489         MaterializeImm(*CurrentMBB, {MI}, NegProbeSize, ScratchReg);  in inlineStackProbe()
1491         allocateAndProbe(*CurrentMBB, {MI}, NegProbeSize, ScratchReg, UseDForm,  in inlineStackProbe()
1502       MaterializeImm(*CurrentMBB, {MI}, NumBlocks, ScratchReg);  in inlineStackProbe()
1504           .addReg(ScratchReg, RegState::Kill);  in inlineStackProbe()
1506         MaterializeImm(*CurrentMBB, {MI}, NegProbeSize, ScratchReg);  in inlineStackProbe()
1515       allocateAndProbe(*LoopMBB, LoopMBB->end(), NegProbeSize, ScratchReg,  in inlineStackProbe()
1574   Register ScratchReg;  in emitEpilogue()  local
1602   bool SingleScratchReg = findScratchRegister(&MBB, true, false, &ScratchReg,  in emitEpilogue()
1607   SingleScratchReg = ScratchReg == TempReg;  in emitEpilogue()
1730         TII.materializeImmPostRA(MBB, MBBI, dl, ScratchReg, FrameSize);  in emitEpilogue()
1734           .addReg(ScratchReg);  in emitEpilogue()
1757           BuildMI(MBB, MBBI, dl, OrInst, ScratchReg)  in emitEpilogue()
1767   assert(RBReg != ScratchReg && "Should have avoided ScratchReg");  in emitEpilogue()
1792     BuildMI(MBB, StackUpdateLoc, dl, LoadInst, ScratchReg)  in emitEpilogue()
1813       BuildMI(MBB, MBBI, dl, LoadInst, ScratchReg)  in emitEpilogue()
1842     assert(RBReg != ScratchReg && "Should be using FP or SP as base register");  in emitEpilogue()
1845         .addReg(ScratchReg)  in emitEpilogue()
1846         .addReg(ScratchReg);  in emitEpilogue()
1850       BuildMI(MBB, MBBI, dl, LoadInst, ScratchReg)  in emitEpilogue()
1872           .addReg(ScratchReg)  in emitEpilogue()
1876     BuildMI(MBB, StackUpdateLoc, dl, MTLRInst).addReg(ScratchReg);  in emitEpilogue()
1893         BuildMI(MBB, MBBI, dl, LoadImmShiftedInst, ScratchReg)  in emitEpilogue()
1895         BuildMI(MBB, MBBI, dl, OrImmInst, ScratchReg)  in emitEpilogue()
1896           .addReg(ScratchReg, RegState::Kill)  in emitEpilogue()
1901           .addReg(ScratchReg);  in emitEpilogue()