95   MachineInstr *findPairable(MachineInstr &I1, bool &DoInsertAtI1,
100   void combine(MachineInstr &I1, MachineInstr &I2,
104   bool isSafeToMoveTogether(MachineInstr &I1, MachineInstr &I2,
249 bool HexagonCopyToCombine::isSafeToMoveTogether(MachineInstr &I1,  in isSafeToMoveTogether()  argument
258   if (I2UseReg && I1.modifiesRegister(I2UseReg, TRI))  in isSafeToMoveTogether()
269       End = --(MachineBasicBlock::reverse_iterator(I1));  in isSafeToMoveTogether()
272       End = MachineBasicBlock::reverse_iterator(I1);  in isSafeToMoveTogether()
317     MachineBasicBlock::iterator I(I1), End(I2);  in isSafeToMoveTogether()
321     unsigned I1UseReg = UseReg(I1.getOperand(1));  in isSafeToMoveTogether()
368       bool Added = I1.addRegisterKilled(KilledOperand, TRI);  in isSafeToMoveTogether()
468       MachineInstr &I1 = *MI++;  in runOnMachineFunction()  local
470       if (I1.isDebugValue())  in runOnMachineFunction()
476       if (ShouldCombineAggressively && PotentiallyNewifiableTFR.count(&I1))  in runOnMachineFunction()
480       if (!isCombinableInstType(I1, TII, ShouldCombineAggressively))  in runOnMachineFunction()
488       MachineInstr *I2 = findPairable(I1, DoInsertAtI1, OptForSize);  in runOnMachineFunction()
491         combine(I1, *I2, MI, DoInsertAtI1, OptForSize);  in runOnMachineFunction()
503 MachineInstr *HexagonCopyToCombine::findPairable(MachineInstr &I1,  in findPairable()  argument
506   MachineBasicBlock::iterator I2 = std::next(MachineBasicBlock::iterator(I1));  in findPairable()
511   unsigned I1DestReg = I1.getOperand(0).getReg();  in findPairable()
513   for (MachineBasicBlock::iterator End = I1.getParent()->end(); I2 != End;  in findPairable()
541     if ((IsI2LowReg && !areCombinableOperations(TRI, I1, *I2, AllowC64)) ||  in findPairable()
542         (IsI1LowReg && !areCombinableOperations(TRI, *I2, I1, AllowC64)))  in findPairable()
545     if (isSafeToMoveTogether(I1, *I2, I1DestReg, I2DestReg, DoInsertAtI1))  in findPairable()
554 void HexagonCopyToCombine::combine(MachineInstr &I1, MachineInstr &I2,  in combine()  argument
563   unsigned I1DestReg = I1.getOperand(0).getReg();  in combine()
576   MachineOperand &LoOperand = IsI1Loreg ? I1.getOperand(1) : I2.getOperand(1);  in combine()
577   MachineOperand &HiOperand = IsI1Loreg ? I2.getOperand(1) : I1.getOperand(1);  in combine()
585                isGreaterThanNBitTFRI<16>(I1) && isGreaterThanNBitTFRI<16>(I2);  in combine()
587   MachineBasicBlock::iterator InsertPt(DoInsertAtI1 ? I1 : I2);  in combine()
614   I1.eraseFromParent();  in combine()