297                                         MachineBasicBlock *MBB2,  in ComputeCommonTailLength()  argument
301   I2 = MBB2->end();  in ComputeCommonTailLength()
304   while (I1 != MBB1->begin() && I2 != MBB2->begin()) {  in ComputeCommonTailLength()
310           if (I2==MBB2->begin())  in ComputeCommonTailLength()
323       if (I2==MBB2->begin()) {  in ComputeCommonTailLength()
347   if (I1 == MBB1->begin() && I2 != MBB2->begin()) {  in ComputeCommonTailLength()
350       if (I2 == MBB2->begin()) {  in ComputeCommonTailLength()
357   if (I2 == MBB2->begin() && I1 != MBB1->begin()) {  in ComputeCommonTailLength()
516                               MachineBasicBlock *MBB2,  in ProfitableToMerge()  argument
523   CommonTailLen = ComputeCommonTailLength(MBB1, MBB2, I1, I2);  in ProfitableToMerge()
527                << " and BB#" << MBB2->getNumber() << " is " << CommonTailLen  in ProfitableToMerge()
532   if (MBB1 == PredBB || MBB2 == PredBB) {  in ProfitableToMerge()
534     unsigned NumTerms = CountTerminators(MBB1 == PredBB ? MBB2 : MBB1, I);  in ProfitableToMerge()
543   if (MBB1->isLayoutSuccessor(MBB2) && I2 == MBB2->begin())  in ProfitableToMerge()
545   if (MBB2->isLayoutSuccessor(MBB1) && I1 == MBB1->begin())  in ProfitableToMerge()
552   if (SuccBB && MBB1 != PredBB && MBB2 != PredBB &&  in ProfitableToMerge()
554       !MBB2->back().getDesc().isBarrier())  in ProfitableToMerge()
568       (I1 == MBB1->begin() || I2 == MBB2->begin()))  in ProfitableToMerge()
991                                 MachineBasicBlock *MBB2) {  in IsBetterFallthrough()  argument
996   if (IsEmptyBlock(MBB1) || IsEmptyBlock(MBB2)) return false;  in IsBetterFallthrough()
1000   if (MBB1->isSuccessor(MBB2)) return true;  in IsBetterFallthrough()
1001   if (MBB2->isSuccessor(MBB1)) return false;  in IsBetterFallthrough()
1008   MachineBasicBlock::iterator MBB2I = --MBB2->end();  in IsBetterFallthrough()