67     unsigned postOffset(const MachineBasicBlock &MBB) const {  in postOffset()
69       unsigned Align = MBB.getAlignment();  in postOffset()
74       unsigned ParentAlign = MBB.getParent()->getAlignment();  in postOffset()
104   uint64_t computeBlockSize(const MachineBasicBlock &MBB) const;
131   for (MachineBasicBlock &MBB : *MF) {  in INITIALIZE_PASS()
132     unsigned Align = MBB.getAlignment();  in INITIALIZE_PASS()
133     unsigned Num = MBB.getNumber();  in INITIALIZE_PASS()
135     assert(!Num || BlockInfo[PrevNum].postOffset(MBB) <= BlockInfo[Num].Offset);  in INITIALIZE_PASS()
136     assert(BlockInfo[Num].Size == computeBlockSize(MBB));  in INITIALIZE_PASS()
145   for (auto &MBB : *MF) {  in dumpBBs()
146     const BasicBlockInfo &BBI = BlockInfo[MBB.getNumber()];  in dumpBBs()
147     dbgs() << format("%bb.%u\toffset=%08x\t", MBB.getNumber(), BBI.Offset)  in dumpBBs()
163   for (MachineBasicBlock &MBB : *MF)  in scanFunction()
164     BlockInfo[MBB.getNumber()].Size = computeBlockSize(MBB);  in scanFunction()
171 uint64_t BranchRelaxation::computeBlockSize(const MachineBasicBlock &MBB) const {  in computeBlockSize()
173   for (const MachineInstr &MI : MBB)  in computeBlockSize()
182   const MachineBasicBlock *MBB = MI.getParent();  in getInstrOffset()  local
187   unsigned Offset = BlockInfo[MBB->getNumber()].Offset;  in getInstrOffset()
190   for (MachineBasicBlock::const_iterator I = MBB->begin(); &*I != &MI; ++I) {  in getInstrOffset()
191     assert(I != MBB->end() && "Didn't find MI in its own basic block?");  in getInstrOffset()
200   for (auto &MBB : make_range(MachineFunction::iterator(Start), MF->end())) {  in adjustBlockOffsets()  local
201     unsigned Num = MBB.getNumber();  in adjustBlockOffsets()
206     BlockInfo[Num].Offset = BlockInfo[PrevNum].postOffset(MBB);  in adjustBlockOffsets()
305   MachineBasicBlock *MBB = MI.getParent();  in fixupConditionalBranch()  local
310   auto insertUncondBranch = [&](MachineBasicBlock *MBB,  in fixupConditionalBranch()
312     unsigned &BBSize = BlockInfo[MBB->getNumber()].Size;  in fixupConditionalBranch()
314     TII->insertUnconditionalBranch(*MBB, DestBB, DL, &NewBrSize);  in fixupConditionalBranch()
317   auto insertBranch = [&](MachineBasicBlock *MBB, MachineBasicBlock *TBB,  in fixupConditionalBranch()  argument
320     unsigned &BBSize = BlockInfo[MBB->getNumber()].Size;  in fixupConditionalBranch()
322     TII->insertBranch(*MBB, TBB, FBB, Cond, DL, &NewBrSize);  in fixupConditionalBranch()
325   auto removeBranch = [&](MachineBasicBlock *MBB) {  in fixupConditionalBranch()  argument
326     unsigned &BBSize = BlockInfo[MBB->getNumber()].Size;  in fixupConditionalBranch()
328     TII->removeBranch(*MBB, &RemovedSize);  in fixupConditionalBranch()
332   auto finalizeBlockChanges = [&](MachineBasicBlock *MBB,  in fixupConditionalBranch()
335     adjustBlockOffsets(*MBB);  in fixupConditionalBranch()
342   bool Fail = TII->analyzeBranch(*MBB, TBB, FBB, Cond);  in fixupConditionalBranch()
366                         << MBB->back());  in fixupConditionalBranch()
368       removeBranch(MBB);  in fixupConditionalBranch()
369       insertBranch(MBB, FBB, TBB, Cond);  in fixupConditionalBranch()
370       finalizeBlockChanges(MBB, nullptr);  in fixupConditionalBranch()
376       NewBB = createNewBlockAfter(*MBB);  in fixupConditionalBranch()
381       MBB->replaceSuccessor(FBB, NewBB);  in fixupConditionalBranch()
387     MachineBasicBlock &NextBB = *std::next(MachineFunction::iterator(MBB));  in fixupConditionalBranch()
393     removeBranch(MBB);  in fixupConditionalBranch()
395     insertBranch(MBB, &NextBB, TBB, Cond);  in fixupConditionalBranch()
397     finalizeBlockChanges(MBB, NewBB);  in fixupConditionalBranch()
403                     << "  Insert a new BB after " << MBB->back());  in fixupConditionalBranch()
406     FBB = &(*std::next(MachineFunction::iterator(MBB)));  in fixupConditionalBranch()
419   NewBB = createNewBlockAfter(*MBB);  in fixupConditionalBranch()
430   MBB->replaceSuccessor(TBB, NewBB);  in fixupConditionalBranch()
434   removeBranch(MBB);  in fixupConditionalBranch()
435   insertBranch(MBB, NewBB, FBB, Cond);  in fixupConditionalBranch()
437   finalizeBlockChanges(MBB, NewBB);  in fixupConditionalBranch()
442   MachineBasicBlock *MBB = MI.getParent();  in fixupUnconditionalBranch()  local
452   BlockInfo[MBB->getNumber()].Size -= OldBrSize;  in fixupUnconditionalBranch()
454   MachineBasicBlock *BranchBB = MBB;  in fixupUnconditionalBranch()
458   if (!MBB->empty()) {  in fixupUnconditionalBranch()
459     BranchBB = createNewBlockAfter(*MBB);  in fixupUnconditionalBranch()
462     for (const MachineBasicBlock *Succ : MBB->successors()) {  in fixupUnconditionalBranch()
469     MBB->replaceSuccessor(DestBB, BranchBB);  in fixupUnconditionalBranch()
477   adjustBlockOffsets(*MBB);  in fixupUnconditionalBranch()
487     MachineBasicBlock &MBB = *I;  in relaxBranchInstructions()  local
490     MachineBasicBlock::iterator Last = MBB.getLastNonDebugInstr();  in relaxBranchInstructions()
491     if (Last == MBB.end())  in relaxBranchInstructions()
513     for (MachineBasicBlock::iterator J = MBB.getFirstTerminator();  in relaxBranchInstructions()
514          J != MBB.end(); J = Next) {  in relaxBranchInstructions()
521           if (Next != MBB.end() && Next->isConditionalBranch()) {  in relaxBranchInstructions()
535           Next = MBB.getFirstTerminator();  in relaxBranchInstructions()