Target/Hexagon/HexagonCFGOptimizer.cpp

149         MachineBasicBlock* LayoutSucc = NULL;
153           LayoutSucc = FirstSucc;
156           LayoutSucc = SecondSucc;
170         if (!LayoutSucc || (CondBranchTarget != JumpAroundTarget)) {
174         if ((NumSuccs == 2) && LayoutSucc && (LayoutSucc->pred_size() == 1)) {
177           if ((LayoutSucc->size() == 1) &&
178               IsUnconditionalJump(LayoutSucc->front().getOpcode())) {
180               LayoutSucc->front().getOperand(0).getMBB();
182             bool case1 = LayoutSucc->isLayoutSuccessor(JumpAroundTarget);
194               // Remove the unconditional branch in LayoutSucc.
195               LayoutSucc->erase(LayoutSucc->begin());
196               LayoutSucc->removeSuccessor(UncondTarget);
197               LayoutSucc->addSuccessor(JumpAroundTarget);
202                 JumpAroundTarget->moveAfter(LayoutSucc);
212               // The live-in to LayoutSucc is now all values live-in to
215               std::vector<unsigned> OrigLiveIn(LayoutSucc->livein_begin(),
216                                                LayoutSucc->livein_end());
220                 LayoutSucc->removeLiveIn(OrigLiveIn[i]);
223                 LayoutSucc->addLiveIn(NewLiveIn[i]);