138     MachineBasicBlock *BranchBlock;       // Block containing the branch  member
205     : BranchBlock(nullptr), BranchTargetBlock(nullptr),  in INITIALIZE_PASS_DEPENDENCY()
209   BranchBlock = nullptr;  in clear()
236                     << Cand.BranchBlock->getNumber() << " can be coalesced:");  in canCoalesceBranch()
239   if (TII->analyzeBranch(*Cand.BranchBlock, Cand.BranchTargetBlock, FalseMBB,  in canCoalesceBranch()
245   for (auto &I : Cand.BranchBlock->terminators()) {  in canCoalesceBranch()
270   if (Cand.BranchBlock->isEHPad() || Cand.BranchBlock->hasEHPadSuccessor()) {  in canCoalesceBranch()
275   if (Cand.BranchBlock->mayHaveInlineAsmBr()) {  in canCoalesceBranch()
283       !Cand.BranchBlock->isSuccessor(Cand.BranchTargetBlock)) {  in canCoalesceBranch()
289   if (Cand.BranchBlock->succ_size() != 2) {  in canCoalesceBranch()
295   assert(Cand.BranchBlock->canFallThrough() &&  in canCoalesceBranch()
302     (*Cand.BranchBlock->succ_begin() == Cand.BranchTargetBlock)  in canCoalesceBranch()
303     ? *Cand.BranchBlock->succ_rbegin()  in canCoalesceBranch()
304     : *Cand.BranchBlock->succ_begin();  in canCoalesceBranch()
495   if (TargetRegion.BranchTargetBlock != SourceRegion.BranchBlock)  in validateCandidates()
497   else if (!MDT->dominates(TargetRegion.BranchBlock, SourceRegion.BranchBlock))  in validateCandidates()
499   else if (!MPDT->dominates(SourceRegion.BranchBlock, TargetRegion.BranchBlock))  in validateCandidates()
542            I = SourceRegion.BranchBlock->instr_begin(),  in canMerge()
543            E = SourceRegion.BranchBlock->getFirstNonPHI();  in canMerge()
555         if (Use.getParent() == SourceRegion.BranchBlock) {  in canMerge()
567            I = SourceRegion.BranchBlock->getFirstNonPHI(),  in canMerge()
568            E = SourceRegion.BranchBlock->end();  in canMerge()
575     if (!canMoveToEnd(*I, *TargetRegion.BranchBlock)) {  in canMerge()
654   moveAndUpdatePHIs(SourceRegion.BranchBlock, SourceRegion.BranchTargetBlock);  in mergeCandidates()
659       SourceRegion.BranchBlock->getFirstNonPHI();  in mergeCandidates()
661       SourceRegion.BranchBlock->getFirstTerminator();  in mergeCandidates()
665                                   : TargetRegion.BranchBlock;  in mergeCandidates()
670           : TargetRegion.BranchBlock->getFirstTerminator();  in mergeCandidates()
672   Source->splice(Target, SourceRegion.BranchBlock, firstInstr, lastInstr);  in mergeCandidates()
679   SourceRegion.BranchBlock->removeSuccessor(SourceRegion.FallThroughBlock);  in mergeCandidates()
680   TargetRegion.BranchBlock->transferSuccessorsAndUpdatePHIs(  in mergeCandidates()
681       SourceRegion.BranchBlock);  in mergeCandidates()
685   TargetRegion.BranchBlock->ReplaceUsesOfBlockWith(  in mergeCandidates()
686       SourceRegion.BranchBlock, SourceRegion.BranchTargetBlock);  in mergeCandidates()
689       SourceRegion.BranchBlock->terminators().begin();  in mergeCandidates()
690   while (I != SourceRegion.BranchBlock->terminators().end()) {  in mergeCandidates()
706   TargetRegion.FallThroughBlock->removeSuccessor(SourceRegion.BranchBlock);  in mergeCandidates()
709   assert(SourceRegion.BranchBlock->empty() &&  in mergeCandidates()
711   SourceRegion.BranchBlock->eraseFromParent();  in mergeCandidates()
744       Cand1.BranchBlock = &MBB;  in runOnMachineFunction()
750       Cand2.BranchBlock = Cand1.BranchTargetBlock;  in runOnMachineFunction()
756       assert(MPDT->dominates(Cand2.BranchTargetBlock, Cand1.BranchBlock) &&  in runOnMachineFunction()
760         LLVM_DEBUG(dbgs() << "Blocks " << Cand1.BranchBlock->getNumber()  in runOnMachineFunction()
761                           << " and " << Cand2.BranchBlock->getNumber()  in runOnMachineFunction()
767                           << Cand1.BranchBlock->getNumber() << " and "  in runOnMachineFunction()
768                           << Cand2.BranchBlock->getNumber() << "\n");  in runOnMachineFunction()
772       LLVM_DEBUG(dbgs() << "Merging blocks " << Cand1.BranchBlock->getNumber()  in runOnMachineFunction()