lib/CodeGen/TwoAddressInstructionPass.cpp

214   MachineInstr *KillMI = NULL;
226     KillMI = LIS->getInstructionFromIndex(I->end);
228   if (!KillMI) {
235       KillMI = UseMO.getParent();
243   if (!KillMI || KillMI->getParent() != MBB || KillMI == MI ||
244       KillMI == OldPos || KillMI->isTerminator())
254   MachineBasicBlock::iterator KillPos = KillMI;
277         if (OtherMI == KillMI && MOReg == SavedReg)
296       LV->replaceKillInstruction(SavedReg, KillMI, MI);
760   MachineInstr *KillMI = 0;
772     KillMI = LIS->getInstructionFromIndex(I->end);
774     KillMI = LV->getVarInfo(Reg).findKill(MBB);
776   if (!KillMI || MI == KillMI || KillMI->isCopy() || KillMI->isCopyLike())
780   if (KillMI->hasUnmodeledSideEffects() || KillMI->isCall() ||
781       KillMI->isBranch() || KillMI->isTerminator())
786   if (isTwoAddrUse(*KillMI, Reg, DstReg))
829   MachineBasicBlock::iterator KillPos = KillMI;
872         assert((MOReg != Reg || OtherMI == KillMI) &&
905     LV->removeVirtualRegisterKilled(Reg, KillMI);
909   DEBUG(dbgs() << "\trescheduled below kill: " << *KillMI);
923       return true; // MI is defining something KillMI uses
954   MachineInstr *KillMI = 0;
966     KillMI = LIS->getInstructionFromIndex(I->end);
968     KillMI = LV->getVarInfo(Reg).findKill(MBB);
970   if (!KillMI || MI == KillMI || KillMI->isCopy() || KillMI->isCopyLike())
975   if (isTwoAddrUse(*KillMI, Reg, DstReg))
979   if (!KillMI->isSafeToMove(TII, AA, SeenStore))
986   for (unsigned i = 0, e = KillMI->getNumOperands(); i != e; ++i) {
987     const MachineOperand &MO = KillMI->getOperand(i);
996       bool isKill = MO.isKill() || (LIS && isPlainlyKilled(KillMI, MOReg, LIS));
1011   MachineBasicBlock::iterator KillPos = KillMI;
1034           // Moving KillMI can clobber the physical register if the def has
1065   MachineBasicBlock::iterator From = KillMI;
1076     LIS->handleMove(KillMI);
1078     LV->removeVirtualRegisterKilled(Reg, KillMI);
1082   DEBUG(dbgs() << "\trescheduled kill: " << *KillMI);