142     MachineBasicBlock *BranchBlock;       // Block containing the branch  member
209     : BranchBlock(nullptr), BranchTargetBlock(nullptr),  in INITIALIZE_PASS_DEPENDENCY()
213   BranchBlock = nullptr;  in clear()
240                     << Cand.BranchBlock->getNumber() << " can be coalesced:");  in canCoalesceBranch()
243   if (TII->analyzeBranch(*Cand.BranchBlock, Cand.BranchTargetBlock, FalseMBB,  in canCoalesceBranch()
249   for (auto &I : Cand.BranchBlock->terminators()) {  in canCoalesceBranch()
274   if (Cand.BranchBlock->isEHPad() || Cand.BranchBlock->hasEHPadSuccessor()) {  in canCoalesceBranch()
282       !Cand.BranchBlock->isSuccessor(Cand.BranchTargetBlock)) {  in canCoalesceBranch()
288   if (Cand.BranchBlock->succ_size() != 2) {  in canCoalesceBranch()
294   assert(Cand.BranchBlock->canFallThrough() &&  in canCoalesceBranch()
301     (*Cand.BranchBlock->succ_begin() == Cand.BranchTargetBlock)  in canCoalesceBranch()
302     ? *Cand.BranchBlock->succ_rbegin()  in canCoalesceBranch()
303     : *Cand.BranchBlock->succ_begin();  in canCoalesceBranch()
493   if (TargetRegion.BranchTargetBlock != SourceRegion.BranchBlock)  in validateCandidates()
495   else if (!MDT->dominates(TargetRegion.BranchBlock, SourceRegion.BranchBlock))  in validateCandidates()
497   else if (!MPDT->dominates(SourceRegion.BranchBlock, TargetRegion.BranchBlock))  in validateCandidates()
540            I = SourceRegion.BranchBlock->instr_begin(),  in canMerge()
541            E = SourceRegion.BranchBlock->getFirstNonPHI();  in canMerge()
553         if (Use.getParent() == SourceRegion.BranchBlock) {  in canMerge()
565            I = SourceRegion.BranchBlock->getFirstNonPHI(),  in canMerge()
566            E = SourceRegion.BranchBlock->end();  in canMerge()
573     if (!canMoveToEnd(*I, *TargetRegion.BranchBlock)) {  in canMerge()
652   moveAndUpdatePHIs(SourceRegion.BranchBlock, SourceRegion.BranchTargetBlock);  in mergeCandidates()
657       SourceRegion.BranchBlock->getFirstNonPHI();  in mergeCandidates()
659       SourceRegion.BranchBlock->getFirstTerminator();  in mergeCandidates()
663                                   : TargetRegion.BranchBlock;  in mergeCandidates()
668           : TargetRegion.BranchBlock->getFirstTerminator();  in mergeCandidates()
670   Source->splice(Target, SourceRegion.BranchBlock, firstInstr, lastInstr);  in mergeCandidates()
677   SourceRegion.BranchBlock->removeSuccessor(SourceRegion.FallThroughBlock);  in mergeCandidates()
678   TargetRegion.BranchBlock->transferSuccessorsAndUpdatePHIs(  in mergeCandidates()
679       SourceRegion.BranchBlock);  in mergeCandidates()
683   TargetRegion.BranchBlock->ReplaceUsesOfBlockWith(  in mergeCandidates()
684       SourceRegion.BranchBlock, SourceRegion.BranchTargetBlock);  in mergeCandidates()
687       SourceRegion.BranchBlock->terminators().begin();  in mergeCandidates()
688   while (I != SourceRegion.BranchBlock->terminators().end()) {  in mergeCandidates()
704   TargetRegion.FallThroughBlock->removeSuccessor(SourceRegion.BranchBlock);  in mergeCandidates()
707   assert(SourceRegion.BranchBlock->empty() &&  in mergeCandidates()
709   SourceRegion.BranchBlock->eraseFromParent();  in mergeCandidates()
742       Cand1.BranchBlock = &MBB;  in runOnMachineFunction()
748       Cand2.BranchBlock = Cand1.BranchTargetBlock;  in runOnMachineFunction()
755       assert(MPDT->dominates(Cand2.BranchTargetBlock, Cand1.BranchBlock) &&  in runOnMachineFunction()
759         LLVM_DEBUG(dbgs() << "Blocks " << Cand1.BranchBlock->getNumber()  in runOnMachineFunction()
760                           << " and " << Cand2.BranchBlock->getNumber()  in runOnMachineFunction()
766                           << Cand1.BranchBlock->getNumber() << " and "  in runOnMachineFunction()
767                           << Cand2.BranchBlock->getNumber() << "\n");  in runOnMachineFunction()
771       LLVM_DEBUG(dbgs() << "Merging blocks " << Cand1.BranchBlock->getNumber()  in runOnMachineFunction()