Lines Matching defs:PreMBB

776       MachineBasicBlock *PreMBB = BBI->getOperand(i + 1).getMBB();
777       // Is there a critical edge from PreMBB to MBB?
778       if (PreMBB->succ_size() == 1)
783       if (PreMBB == &MBB && !SplitAllCriticalEdges)
785       const MachineLoop *PreLoop = MLI ? MLI->getLoopFor(PreMBB) : nullptr;
791       // use. That means the copy we will insert in PreMBB won't be a kill, and
795       bool ShouldSplit = isLiveOutPastPHIs(Reg, PreMBB);
800                           << printMBBReference(*PreMBB) << " -> "
805       // other PreMBB successor, and we can avoid the interference by splitting
831       if (!(P ? PreMBB->SplitCriticalEdge(&MBB, *P, LiveInSets, &MDTU)
832               : PreMBB->SplitCriticalEdge(&MBB, *MFAM, LiveInSets, &MDTU))) {