654   Register ScratchReg;  in emitPrologue()  local
687       &MBB, false, twoUniqueScratchRegsRequired(&MBB), &ScratchReg, &TempReg);  in emitPrologue()
691   SingleScratchReg = ScratchReg == TempReg;  in emitPrologue()
815     BuildMI(MBB, MBBI, dl, MFLRInst, ScratchReg);  in emitPrologue()
844         .addReg(ScratchReg, getKillRegState(!HasROPProtect))  in emitPrologue()
862           .addReg(ScratchReg, getKillRegState(true))  in emitPrologue()
922         .addDef(ScratchReg) // ScratchReg stores the old sp.  in emitPrologue()
928       BuildMI(MBB, MBBI, dl, TII.get(PPC::SUBF), ScratchReg)  in emitPrologue()
929           .addReg(ScratchReg)  in emitPrologue()
936         BuildMI(MBB, MBBI, dl, TII.get(PPC::RLDICL), ScratchReg)  in emitPrologue()
941         BuildMI(MBB, MBBI, dl, TII.get(PPC::RLWINM), ScratchReg)  in emitPrologue()
947         BuildMI(MBB, MBBI, dl, SubtractImmCarryingInst, ScratchReg)  in emitPrologue()
948             .addReg(ScratchReg, RegState::Kill)  in emitPrologue()
953         BuildMI(MBB, MBBI, dl, SubtractCarryingInst, ScratchReg)  in emitPrologue()
954             .addReg(ScratchReg, RegState::Kill)  in emitPrologue()
961           .addReg(ScratchReg);  in emitPrologue()
968       TII.materializeImmPostRA(MBB, MBBI, dl, ScratchReg, NegFrameSize);  in emitPrologue()
972           .addReg(ScratchReg);  in emitPrologue()
999       BuildMI(MBB, MBBI, dl, TII.get(PPC::SUBF), ScratchReg)  in emitPrologue()
1000         .addReg(ScratchReg, RegState::Kill)  in emitPrologue()
1003       if (ScratchReg == PPC::R0) {  in emitPrologue()
1010           BuildMI(MBB, MBBI, dl, TII.get(PPC::ADDIC), ScratchReg)  in emitPrologue()
1011             .addReg(ScratchReg)  in emitPrologue()
1018             .addReg(ScratchReg);  // This will be the index (R0 is ok here).  in emitPrologue()
1022           BuildMI(MBB, MBBI, dl, TII.get(PPC::ADDIC), ScratchReg)  in emitPrologue()
1023             .addReg(ScratchReg)  in emitPrologue()
1029             .addReg(ScratchReg);  // This will be the index (R0 is ok here).  in emitPrologue()
1033           BuildMI(MBB, MBBI, dl, TII.get(PPC::ADDIC), ScratchReg)  in emitPrologue()
1034             .addReg(ScratchReg)  in emitPrologue()
1040             .addReg(ScratchReg);  // This will be the index (R0 is ok here).  in emitPrologue()
1043             .addReg(ScratchReg, RegState::Kill)  in emitPrologue()
1056             .addReg(ScratchReg);  in emitPrologue()
1061             .addReg(ScratchReg);  in emitPrologue()
1066             .addReg(ScratchReg);  in emitPrologue()
1068             .addReg(ScratchReg, RegState::Kill)  in emitPrologue()
1069             .addReg(ScratchReg);  in emitPrologue()
1259   Register ScratchReg = MI.getOperand(0).getReg();  in inlineStackProbe()  local
1347                                  Register ScratchReg, Register TempReg) {  in inlineStackProbe()  argument
1389       allocateAndProbe(*ProbeExitMBB, ProbeExitMBB->end(), 0, ScratchReg, false,  in inlineStackProbe()
1402       BuildMI(&MBB, DL, TII.get(isPPC64 ? PPC::SUBF8 : PPC::SUBF), ScratchReg)  in inlineStackProbe()
1408           .addReg(ScratchReg)  in inlineStackProbe()
1423               ScratchReg)  in inlineStackProbe()
1424           .addReg(ScratchReg)  in inlineStackProbe()
1428           .addReg(ScratchReg)  in inlineStackProbe()
1451       BuildMI(*CurrentMBB, {MI}, DL, TII.get(PPC::RLDICL), ScratchReg)  in inlineStackProbe()
1456       BuildMI(*CurrentMBB, {MI}, DL, TII.get(PPC::RLWINM), ScratchReg)  in inlineStackProbe()
1463         .addReg(ScratchReg)  in inlineStackProbe()
1465     MaterializeImm(*CurrentMBB, {MI}, NegFrameSize, ScratchReg);  in inlineStackProbe()
1468         .addReg(ScratchReg)  in inlineStackProbe()
1470     CurrentMBB = probeRealignedStack(*CurrentMBB, {MI}, ScratchReg, FPReg);  in inlineStackProbe()
1483         MaterializeImm(*CurrentMBB, {MI}, NegResidualSize, ScratchReg);  in inlineStackProbe()
1484       allocateAndProbe(*CurrentMBB, {MI}, NegResidualSize, ScratchReg,  in inlineStackProbe()
1491         MaterializeImm(*CurrentMBB, {MI}, NegProbeSize, ScratchReg);  in inlineStackProbe()
1493         allocateAndProbe(*CurrentMBB, {MI}, NegProbeSize, ScratchReg, UseDForm,  in inlineStackProbe()
1504       MaterializeImm(*CurrentMBB, {MI}, NumBlocks, ScratchReg);  in inlineStackProbe()
1506           .addReg(ScratchReg, RegState::Kill);  in inlineStackProbe()
1508         MaterializeImm(*CurrentMBB, {MI}, NegProbeSize, ScratchReg);  in inlineStackProbe()
1517       allocateAndProbe(*LoopMBB, LoopMBB->end(), NegProbeSize, ScratchReg,  in inlineStackProbe()
1579   Register ScratchReg;  in emitEpilogue()  local
1607   bool SingleScratchReg = findScratchRegister(&MBB, true, false, &ScratchReg,  in emitEpilogue()
1612   SingleScratchReg = ScratchReg == TempReg;  in emitEpilogue()
1735         TII.materializeImmPostRA(MBB, MBBI, dl, ScratchReg, FrameSize);  in emitEpilogue()
1739           .addReg(ScratchReg);  in emitEpilogue()
1762           BuildMI(MBB, MBBI, dl, OrInst, ScratchReg)  in emitEpilogue()
1772   assert(RBReg != ScratchReg && "Should have avoided ScratchReg");  in emitEpilogue()
1797     BuildMI(MBB, StackUpdateLoc, dl, LoadInst, ScratchReg)  in emitEpilogue()
1818       BuildMI(MBB, MBBI, dl, LoadInst, ScratchReg)  in emitEpilogue()
1847     assert(RBReg != ScratchReg && "Should be using FP or SP as base register");  in emitEpilogue()
1850         .addReg(ScratchReg)  in emitEpilogue()
1851         .addReg(ScratchReg);  in emitEpilogue()
1855       BuildMI(MBB, MBBI, dl, LoadInst, ScratchReg)  in emitEpilogue()
1877           .addReg(ScratchReg)  in emitEpilogue()
1881     BuildMI(MBB, StackUpdateLoc, dl, MTLRInst).addReg(ScratchReg);  in emitEpilogue()
1898         BuildMI(MBB, MBBI, dl, LoadImmShiftedInst, ScratchReg)  in emitEpilogue()
1900         BuildMI(MBB, MBBI, dl, OrImmInst, ScratchReg)  in emitEpilogue()
1901           .addReg(ScratchReg, RegState::Kill)  in emitEpilogue()
1906           .addReg(ScratchReg);  in emitEpilogue()