85                                             MachineInstr *LoopStart);
112                                MachineInstr *&LoopStart, MachineInstr *&LoopPhi,  in findLoopComponents()  argument
175   LoopStart = LookThroughCOPY(MRI->getVRegDef(StartReg), MRI);  in findLoopComponents()
176   if (!LoopStart || (LoopStart->getOpcode() != ARM::t2DoLoopStart &&  in findLoopComponents()
177                      LoopStart->getOpcode() != ARM::t2WhileLoopSetup &&  in findLoopComponents()
178                      LoopStart->getOpcode() != ARM::t2WhileLoopStartLR)) {  in findLoopComponents()
182   LLVM_DEBUG(dbgs() << "  found loop start: " << *LoopStart);  in findLoopComponents()
232   MachineInstr *LoopEnd, *LoopPhi, *LoopStart, *LoopDec;  in LowerWhileLoopStart()  local
233   if (!findLoopComponents(ML, MRI, LoopStart, LoopPhi, LoopDec, LoopEnd))  in LowerWhileLoopStart()
236   if (LoopStart->getOpcode() != ARM::t2WhileLoopSetup)  in LowerWhileLoopStart()
239   Register LR = LoopStart->getOperand(0).getReg();  in LowerWhileLoopStart()
244     RevertWhileLoopSetup(LoopStart, TII);  in LowerWhileLoopStart()
245     RevertLoopDec(LoopStart, TII);  in LowerWhileLoopStart()
246     RevertLoopEnd(LoopStart, TII);  in LowerWhileLoopStart()
253           .add(LoopStart->getOperand(1))  in LowerWhileLoopStart()
259   LoopStart->eraseFromParent();  in LowerWhileLoopStart()
274     MachineBasicBlock *PreHeader, MachineInstr *LoopStart) {  in CheckForLRUseInPredecessors()  argument
278   Visited.insert(LoopStart->getParent());  in CheckForLRUseInPredecessors()
294                   LoopStart->getDebugLoc(), TII->get(ARM::t2DoLoopStart));  in CheckForLRUseInPredecessors()
295       MIB.add(LoopStart->getOperand(0));  in CheckForLRUseInPredecessors()
296       MIB.add(LoopStart->getOperand(1));  in CheckForLRUseInPredecessors()
299       LoopStart->getOperand(1).setIsKill(false);  in CheckForLRUseInPredecessors()
302       RevertWhileLoopStartLR(LoopStart, TII, ARM::t2Bcc, true);  in CheckForLRUseInPredecessors()
310   return LoopStart;  in CheckForLRUseInPredecessors()
327   MachineInstr *LoopEnd, *LoopPhi, *LoopStart, *LoopDec;  in MergeLoopEnd()  local
328   if (!findLoopComponents(ML, MRI, LoopStart, LoopPhi, LoopDec, LoopEnd))  in MergeLoopEnd()
335   if (LoopStart->getOpcode() == ARM::t2WhileLoopStartLR && PreHeader)  in MergeLoopEnd()
336     LoopStart = CheckForLRUseInPredecessors(PreHeader, LoopStart);  in MergeLoopEnd()
342         if (LoopStart->getOpcode() == ARM::t2DoLoopStart)  in MergeLoopEnd()
343           RevertDoLoopStart(LoopStart, TII);  in MergeLoopEnd()
345           RevertWhileLoopStartLR(LoopStart, TII);  in MergeLoopEnd()
358   Register StartReg = LoopStart->getOperand(0).getReg();  in MergeLoopEnd()
386     if (LoopStart->getOpcode() == ARM::t2WhileLoopStartLR) {  in MergeLoopEnd()
387       RevertWhileLoopStartLR(LoopStart, TII);  in MergeLoopEnd()
445   MachineInstr *LoopEnd, *LoopPhi, *LoopStart, *LoopDec;  in ConvertTailPredLoop()  local
446   if (!findLoopComponents(ML, MRI, LoopStart, LoopPhi, LoopDec, LoopEnd))  in ConvertTailPredLoop()
448   if (LoopDec != LoopEnd || (LoopStart->getOpcode() != ARM::t2DoLoopStart &&  in ConvertTailPredLoop()
449                              LoopStart->getOpcode() != ARM::t2WhileLoopStartLR))  in ConvertTailPredLoop()
508   MachineBasicBlock *MBB = LoopStart->getParent();  in ConvertTailPredLoop()
511        MRI->use_instructions(LoopStart->getOperand(0).getReg()))  in ConvertTailPredLoop()
518   unsigned NewOpc = LoopStart->getOpcode() == ARM::t2DoLoopStart  in ConvertTailPredLoop()
522       BuildMI(*MBB, InsertPt, LoopStart->getDebugLoc(), TII->get(NewOpc))  in ConvertTailPredLoop()
523           .add(LoopStart->getOperand(0))  in ConvertTailPredLoop()
524           .add(LoopStart->getOperand(1))  in ConvertTailPredLoop()
527     MI.add(LoopStart->getOperand(2));  in ConvertTailPredLoop()
528   LLVM_DEBUG(dbgs() << "Replacing " << *LoopStart << "  with "  in ConvertTailPredLoop()
531   LoopStart->eraseFromParent();  in ConvertTailPredLoop()