172 static bool isSourceDefinedByImplicitDef(const MachineInstr *MPhi,  in isSourceDefinedByImplicitDef()  argument
174   for (unsigned i = 1; i != MPhi->getNumOperands(); i += 2) {  in isSourceDefinedByImplicitDef()
175     unsigned SrcReg = MPhi->getOperand(i).getReg();  in isSourceDefinedByImplicitDef()
195   MachineInstr *MPhi = MBB.remove(MBB.begin());  in LowerAtomicPHINode()  local
197   unsigned NumSrcs = (MPhi->getNumOperands() - 1) / 2;  in LowerAtomicPHINode()
198   unsigned DestReg = MPhi->getOperand(0).getReg();  in LowerAtomicPHINode()
199   assert(MPhi->getOperand(0).getSubReg() == 0 && "Can't handle sub-reg PHIs");  in LowerAtomicPHINode()
200   bool isDead = MPhi->getOperand(0).isDead();  in LowerAtomicPHINode()
211   if (isSourceDefinedByImplicitDef(MPhi, MRI))  in LowerAtomicPHINode()
214     BuildMI(MBB, AfterPHIsIt, MPhi->getDebugLoc(),  in LowerAtomicPHINode()
219     unsigned &entry = LoweredPHIs[MPhi];  in LowerAtomicPHINode()
225       DEBUG(dbgs() << "Reusing " << PrintReg(IncomingReg) << " for " << *MPhi);  in LowerAtomicPHINode()
230     BuildMI(MBB, AfterPHIsIt, MPhi->getDebugLoc(),  in LowerAtomicPHINode()
267     LV->removeVirtualRegistersKilled(MPhi);  in LowerAtomicPHINode()
272       LV->removeVirtualRegisterDead(DestReg, MPhi);  in LowerAtomicPHINode()
277   for (unsigned i = 1; i != MPhi->getNumOperands(); i += 2)  in LowerAtomicPHINode()
278     --VRegPHIUseCount[BBVRegPair(MPhi->getOperand(i+1).getMBB()->getNumber(),  in LowerAtomicPHINode()
279                                  MPhi->getOperand(i).getReg())];  in LowerAtomicPHINode()
285     unsigned SrcReg = MPhi->getOperand(i*2+1).getReg();  in LowerAtomicPHINode()
286     unsigned SrcSubReg = MPhi->getOperand(i*2+1).getSubReg();  in LowerAtomicPHINode()
293     MachineBasicBlock &opBlock = *MPhi->getOperand(i*2+2).getMBB();  in LowerAtomicPHINode()
316       BuildMI(opBlock, InsertPos, MPhi->getDebugLoc(),  in LowerAtomicPHINode()
387     MF.DeleteMachineInstr(MPhi);  in LowerAtomicPHINode()