lib/CodeGen/MachineCopyPropagation.cpp

85 static bool NoInterveningSideEffect(const MachineInstr *CopyMI,
87   const MachineBasicBlock *MBB = CopyMI->getParent();
90   MachineBasicBlock::const_iterator I = CopyMI;
113 static bool isNopCopy(MachineInstr *CopyMI, unsigned Def, unsigned Src,
115   unsigned SrcSrc = CopyMI->getOperand(1).getReg();
119     unsigned SrcDef = CopyMI->getOperand(0).getReg();
153         MachineInstr *CopyMI = CI->second;
155             (!MRI->isReserved(Src) || NoInterveningSideEffect(CopyMI, MI)) &&
156             isNopCopy(CopyMI, Def, Src, TRI)) {
173           // Clear any kills of Def between CopyMI and MI. This extends the
175           for (MachineBasicBlock::iterator I = CopyMI, E = MI; I != E; ++I)