++NumSplit;
// Update the CFG. All succs of OrigBB are now succs of NewBB.
- while (!OrigBB->succ_empty()) {
- MachineBasicBlock *Succ = *OrigBB->succ_begin();
- OrigBB->removeSuccessor(Succ);
- NewBB->addSuccessor(Succ);
-
- // This pass should be run after register allocation, so there should be no
- // PHI nodes to update.
- assert((Succ->empty() || !Succ->begin()->isPHI())
- && "PHI nodes should be eliminated by now!");
- }
+ NewBB->transferSuccessors(OrigBB);
// OrigBB branches to NewBB.
OrigBB->addSuccessor(NewBB);