Lines Matching defs:FromMBB

2165   MachineBasicBlock &FromMBB = *FromBBI.BB;
2166   for (MachineInstr &I : FromMBB) {
2199     std::vector<MachineBasicBlock *> Succs(FromMBB.succ_begin(),
2200                                            FromMBB.succ_end());
2201     MachineBasicBlock *NBB = getNextBlock(FromMBB);
2227   MachineBasicBlock &FromMBB = *FromBBI.BB;
2228   assert(!FromMBB.hasAddressTaken() &&
2233   if (FromMBB.mayHaveInlineAsmBr())
2234     for (MachineInstr &MI : FromMBB)
2240   // In case FromMBB contains terminators (e.g. return instruction),
2242   MachineBasicBlock::iterator FromTI = FromMBB.getFirstTerminator();
2244   ToBBI.BB->splice(ToTI, &FromMBB, FromMBB.begin(), FromTI);
2247   if (FromTI != FromMBB.end() && !TII->isPredicated(*FromTI))
2249   ToBBI.BB->splice(ToTI, &FromMBB, FromTI, FromMBB.end());
2258   SmallVector<MachineBasicBlock *, 4> FromSuccs(FromMBB.successors());
2259   MachineBasicBlock *NBB = getNextBlock(FromMBB);
2261   // The edge probability from ToBBI.BB to FromMBB, which is only needed when
2262   // AddEdges is true and FromMBB is a successor of ToBBI.BB.
2264   if (AddEdges && ToBBI.BB->isSuccessor(&FromMBB)) {
2267     To2FromProb = MBPI->getEdgeProbability(ToBBI.BB, &FromMBB);
2268     ToBBI.BB->removeSuccessor(&FromMBB);
2274       FromMBB.removeSuccessor(Succ);
2281       // which is a portion of the edge probability from FromMBB to Succ. The
2282       // portion ratio is the edge probability from ToBBI.BB to FromMBB (if
2284       NewProb = MBPI->getEdgeProbability(&FromMBB, Succ);
2286       // To2FromProb is 0 when FromMBB is not a successor of ToBBI.BB. This
2287       // only happens when if-converting a diamond CFG and FromMBB is the
2288       // tail BB.  In this case FromMBB post-dominates ToBBI.BB and hence we
2289       // could just use the probabilities on FromMBB's out-edges when adding
2295     FromMBB.removeSuccessor(Succ);
2300       // below, in which A is ToBBI.BB and B is FromMBB. In this case we
2329   // Move the now empty FromMBB out of the way to the end of the function so
2331   MachineBasicBlock *Last = &*FromMBB.getParent()->rbegin();
2332   if (Last != &FromMBB)
2333     FromMBB.moveAfter(Last);