66     unsigned postOffset(const MachineBasicBlock &MBB) const {  in postOffset()
68       const Align Alignment = MBB.getAlignment();  in postOffset()
69       const Align ParentAlign = MBB.getParent()->getAlignment();  in postOffset()
99   uint64_t computeBlockSize(const MachineBasicBlock &MBB) const;
126   for (MachineBasicBlock &MBB : *MF) {  in INITIALIZE_PASS()
127     const unsigned Num = MBB.getNumber();  in INITIALIZE_PASS()
128     assert(!Num || BlockInfo[PrevNum].postOffset(MBB) <= BlockInfo[Num].Offset);  in INITIALIZE_PASS()
129     assert(BlockInfo[Num].Size == computeBlockSize(MBB));  in INITIALIZE_PASS()
138   for (auto &MBB : *MF) {  in dumpBBs()
139     const BasicBlockInfo &BBI = BlockInfo[MBB.getNumber()];  in dumpBBs()
140     dbgs() << format("%%bb.%u\toffset=%08x\t", MBB.getNumber(), BBI.Offset)  in dumpBBs()
156   for (MachineBasicBlock &MBB : *MF)  in scanFunction()
157     BlockInfo[MBB.getNumber()].Size = computeBlockSize(MBB);  in scanFunction()
164 uint64_t BranchRelaxation::computeBlockSize(const MachineBasicBlock &MBB) const {  in computeBlockSize()
166   for (const MachineInstr &MI : MBB)  in computeBlockSize()
175   const MachineBasicBlock *MBB = MI.getParent();  in getInstrOffset()  local
180   unsigned Offset = BlockInfo[MBB->getNumber()].Offset;  in getInstrOffset()
183   for (MachineBasicBlock::const_iterator I = MBB->begin(); &*I != &MI; ++I) {  in getInstrOffset()
184     assert(I != MBB->end() && "Didn't find MI in its own basic block?");  in getInstrOffset()
193   for (auto &MBB :  in adjustBlockOffsets()  local
195     unsigned Num = MBB.getNumber();  in adjustBlockOffsets()
198     BlockInfo[Num].Offset = BlockInfo[PrevNum].postOffset(MBB);  in adjustBlockOffsets()
296   MachineBasicBlock *MBB = MI.getParent();  in fixupConditionalBranch()  local
301   auto insertUncondBranch = [&](MachineBasicBlock *MBB,  in fixupConditionalBranch()
303     unsigned &BBSize = BlockInfo[MBB->getNumber()].Size;  in fixupConditionalBranch()
305     TII->insertUnconditionalBranch(*MBB, DestBB, DL, &NewBrSize);  in fixupConditionalBranch()
308   auto insertBranch = [&](MachineBasicBlock *MBB, MachineBasicBlock *TBB,  in fixupConditionalBranch()  argument
311     unsigned &BBSize = BlockInfo[MBB->getNumber()].Size;  in fixupConditionalBranch()
313     TII->insertBranch(*MBB, TBB, FBB, Cond, DL, &NewBrSize);  in fixupConditionalBranch()
316   auto removeBranch = [&](MachineBasicBlock *MBB) {  in fixupConditionalBranch()  argument
317     unsigned &BBSize = BlockInfo[MBB->getNumber()].Size;  in fixupConditionalBranch()
319     TII->removeBranch(*MBB, &RemovedSize);  in fixupConditionalBranch()
323   auto finalizeBlockChanges = [&](MachineBasicBlock *MBB,  in fixupConditionalBranch()
326     adjustBlockOffsets(*MBB);  in fixupConditionalBranch()
333   bool Fail = TII->analyzeBranch(*MBB, TBB, FBB, Cond);  in fixupConditionalBranch()
357                         << MBB->back());  in fixupConditionalBranch()
359       removeBranch(MBB);  in fixupConditionalBranch()
360       insertBranch(MBB, FBB, TBB, Cond);  in fixupConditionalBranch()
361       finalizeBlockChanges(MBB, nullptr);  in fixupConditionalBranch()
367       NewBB = createNewBlockAfter(*MBB);  in fixupConditionalBranch()
372       MBB->replaceSuccessor(FBB, NewBB);  in fixupConditionalBranch()
378     MachineBasicBlock &NextBB = *std::next(MachineFunction::iterator(MBB));  in fixupConditionalBranch()
384     removeBranch(MBB);  in fixupConditionalBranch()
386     insertBranch(MBB, &NextBB, TBB, Cond);  in fixupConditionalBranch()
388     finalizeBlockChanges(MBB, NewBB);  in fixupConditionalBranch()
394                     << "  Insert a new BB after " << MBB->back());  in fixupConditionalBranch()
397     FBB = &(*std::next(MachineFunction::iterator(MBB)));  in fixupConditionalBranch()
410   NewBB = createNewBlockAfter(*MBB);  in fixupConditionalBranch()
421   MBB->replaceSuccessor(TBB, NewBB);  in fixupConditionalBranch()
425   removeBranch(MBB);  in fixupConditionalBranch()
426   insertBranch(MBB, NewBB, FBB, Cond);  in fixupConditionalBranch()
428   finalizeBlockChanges(MBB, NewBB);  in fixupConditionalBranch()
433   MachineBasicBlock *MBB = MI.getParent();  in fixupUnconditionalBranch()  local
443   BlockInfo[MBB->getNumber()].Size -= OldBrSize;  in fixupUnconditionalBranch()
445   MachineBasicBlock *BranchBB = MBB;  in fixupUnconditionalBranch()
449   if (!MBB->empty()) {  in fixupUnconditionalBranch()
450     BranchBB = createNewBlockAfter(*MBB);  in fixupUnconditionalBranch()
453     for (const MachineBasicBlock *Succ : MBB->successors()) {  in fixupUnconditionalBranch()
460     MBB->replaceSuccessor(DestBB, BranchBB);  in fixupUnconditionalBranch()
475   adjustBlockOffsets(*MBB);  in fixupUnconditionalBranch()
515   for (MachineBasicBlock &MBB : *MF) {  in relaxBranchInstructions()
517     MachineBasicBlock::iterator Last = MBB.getLastNonDebugInstr();  in relaxBranchInstructions()
518     if (Last == MBB.end())  in relaxBranchInstructions()
540     for (MachineBasicBlock::iterator J = MBB.getFirstTerminator();  in relaxBranchInstructions()
541          J != MBB.end(); J = Next) {  in relaxBranchInstructions()
555         if (Next != MBB.end() && Next->isConditionalBranch()) {  in relaxBranchInstructions()
569         Next = MBB.getFirstTerminator();  in relaxBranchInstructions()