890 bool ShrinkWrapping::isBestSavePosCold(unsigned CSR, MCInst *&BestPosSave,  in isBestSavePosCold()  argument
892   const uint64_t CurSavingCost = CSA.SavingCost[CSR];  in isBestSavePosCold()
893   if (!CSA.CalleeSaved[CSR])  in isBestSavePosCold()
896   assert(BestSaveCount[CSR].size() == BestSavePos[CSR].size() &&  in isBestSavePosCold()
898   if (BestSaveCount[CSR].empty())  in isBestSavePosCold()
901   const uint64_t BestCount = BestSaveCount[CSR].back();  in isBestSavePosCold()
902   BestPosSave = BestSavePos[CSR].back();  in isBestSavePosCold()
910     dbgs() << "Reg: " << CSR << "; New BB: " << InsnToBB[BestPosSave]->getName()  in isBestSavePosCold()
972 ShrinkWrapping::doRestorePlacement(MCInst *BestPosSave, unsigned CSR,  in doRestorePlacement()  argument
996         doesInstUsesCSR(*PP.getInst(), CSR)) {  in doRestorePlacement()
1059 bool ShrinkWrapping::validatePushPopsMode(unsigned CSR, MCInst *BestPosSave,  in validatePushPopsMode()  argument
1063       dbgs() << "Reg " << CSR  in validatePushPopsMode()
1071       dbgs() << "Reg " << CSR  in validatePushPopsMode()
1077   for (MCInst *Save : CSA.getSavesByReg(CSR)) {  in validatePushPopsMode()
1079       LLVM_DEBUG(dbgs() << "Reg " << CSR << " cannot collapse region.\n");  in validatePushPopsMode()
1084   for (MCInst *Load : CSA.getRestoresByReg(CSR)) {  in validatePushPopsMode()
1086       LLVM_DEBUG(dbgs() << "Reg " << CSR << " has a mismatching restore.\n");  in validatePushPopsMode()
1097       dbgs() << "Reg " << CSR  in validatePushPopsMode()
1108     unsigned CSR) {  in fixPopsPlacements()  argument
1119       BV &= UsesByReg[CSR];  in fixPopsPlacements()
1129         BV &= UsesByReg[CSR];  in fixPopsPlacements()
1139         dbgs() << "Could not find restore insertion point for " << CSR  in fixPopsPlacements()
1149 void ShrinkWrapping::scheduleOldSaveRestoresRemoval(unsigned CSR,  in scheduleOldSaveRestoresRemoval()  argument
1158         if (SLM.getOffsetCFIReg(Inst) == CSR) {  in scheduleOldSaveRestoresRemoval()
1159           HasDeletedOffsetCFIs[CSR] = true;  in scheduleOldSaveRestoresRemoval()
1160           scheduleChange(&Inst, WorklistItem(WorklistItem::Erase, CSR));  in scheduleOldSaveRestoresRemoval()
1169       if (SavedReg != CSR && RestoredReg != CSR) {  in scheduleOldSaveRestoresRemoval()
1177                                          CSR));  in scheduleOldSaveRestoresRemoval()
1181           SavedReg == CSR && DeletedPushCFIs[CSR].empty();  in scheduleOldSaveRestoresRemoval()
1183           RestoredReg == CSR && DeletedPopCFIs[CSR].empty();  in scheduleOldSaveRestoresRemoval()
1190         scheduleChange(CFI, WorklistItem(WorklistItem::Erase, CSR));  in scheduleOldSaveRestoresRemoval()
1196           DeletedPushCFIs[CSR].push_back(CFI->getOperand(0).getImm());  in scheduleOldSaveRestoresRemoval()
1201           DeletedPopCFIs[CSR].push_back(CFI->getOperand(0).getImm());  in scheduleOldSaveRestoresRemoval()
1209 bool ShrinkWrapping::doesInstUsesCSR(const MCInst &Inst, uint16_t CSR) {  in doesInstUsesCSR()  argument
1210   if (BC.MIB->isCFI(Inst) || CSA.getSavedReg(Inst) == CSR ||  in doesInstUsesCSR()
1211       CSA.getRestoredReg(Inst) == CSR)  in doesInstUsesCSR()
1215   return BV[CSR];  in doesInstUsesCSR()
1219     unsigned CSR, MCInst *BestPosSave,  in scheduleSaveRestoreInsertions()  argument
1222   const FrameIndexEntry *FIESave = CSA.SaveFIEByReg[CSR];  in scheduleSaveRestoreInsertions()
1223   const FrameIndexEntry *FIELoad = CSA.LoadFIEByReg[CSR];  in scheduleSaveRestoreInsertions()
1234                  *FIESave, CSR);  in scheduleSaveRestoreInsertions()
1258         (doesInstUsesCSR(*PP.getInst(), CSR) || PrecededByPrefix)) {  in scheduleSaveRestoreInsertions()
1264                      *FIELoad, CSR);  in scheduleSaveRestoreInsertions()
1270                    *FIELoad, CSR);  in scheduleSaveRestoreInsertions()
1541 void ShrinkWrapping::insertUpdatedCFI(unsigned CSR, int SPValPush,  in insertUpdatedCFI()  argument
1561       if (Reg != CSR || !IsStore || !IsSimple)  in insertUpdatedCFI()
1571     dbgs() << "Now using as save point for reg " << CSR << " :";  in insertUpdatedCFI()
1591           InstIter = insertCFIsForPushOrPop(*BB, InsertionIter, CSR, true, 0,  in insertUpdatedCFI()
1594           InstIter = insertCFIsForPushOrPop(*BB, InsertionIter, CSR, false, 0,  in insertUpdatedCFI()
1602         insertCFIsForPushOrPop(*BB, BB->begin(), CSR, true, 0, SPValPush);  in insertUpdatedCFI()
1605         insertCFIsForPushOrPop(*PrevBB, PrevBB->end(), CSR, true, 0, SPValPush);  in insertUpdatedCFI()
1607         insertCFIsForPushOrPop(*PrevBB, PrevBB->end(), CSR, false, 0, SPValPop);  in insertUpdatedCFI()