Lines Matching defs:LoopStart

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