373     SrcMBB = *SrcMBB->succ_begin();  in singlePathTo()
546   MachineBasicBlock::succ_iterator It = MBB->succ_begin();  in getFalseBranch()
894   MachineBasicBlock *childBlk = *MBB->succ_begin();  in serialPatternMatch()
928     && *TrueMBB->succ_begin() == *FalseMBB->succ_begin()) {  in ifPatternMatch()
930     LandBlk = *TrueMBB->succ_begin();  in ifPatternMatch()
931   } else if (TrueMBB->succ_size() == 1 && *TrueMBB->succ_begin() == FalseMBB) {  in ifPatternMatch()
936              && *FalseMBB->succ_begin() == TrueMBB) {  in ifPatternMatch()
945     LandBlk = *FalseMBB->succ_begin();  in ifPatternMatch()
948     LandBlk = *TrueMBB->succ_begin();  in ifPatternMatch()
1098       Num += serialPatternMatch(*HeadMBB->succ_begin());  in handleJumpintoIfImp()
1099       Num += serialPatternMatch(*std::next(HeadMBB->succ_begin()));  in handleJumpintoIfImp()
1106     DownBlk = (DownBlk->succ_size() == 1) ? (*DownBlk->succ_begin()) : nullptr;  in handleJumpintoIfImp()
1484     SrcMBB = *SrcMBB->succ_begin();  in cloneOnSideEntryTo()
1576   MachineBasicBlock *MBB1 = *MBB->succ_begin();  in removeRedundantConditionalBranch()
1577   MachineBasicBlock *MBB2 = *std::next(MBB->succ_begin());  in removeRedundantConditionalBranch()
1607     MBB->removeSuccessor(*MBB->succ_begin());  in removeSuccessor()