Lines Matching defs:PreMBB

767       MachineBasicBlock *PreMBB = BBI->getOperand(i + 1).getMBB();
768       // Is there a critical edge from PreMBB to MBB?
769       if (PreMBB->succ_size() == 1)
774       if (PreMBB == &MBB && !SplitAllCriticalEdges)
776       const MachineLoop *PreLoop = MLI ? MLI->getLoopFor(PreMBB) : nullptr;
782       // use. That means the copy we will insert in PreMBB won't be a kill, and
786       bool ShouldSplit = isLiveOutPastPHIs(Reg, PreMBB);
791                           << printMBBReference(*PreMBB) << " -> "
796       // other PreMBB successor, and we can avoid the interference by splitting
822       if (!(P ? PreMBB->SplitCriticalEdge(&MBB, *P, LiveInSets)
823               : PreMBB->SplitCriticalEdge(&MBB, *MFAM, LiveInSets))) {