687   BasicBlock *PredBB = DestBB->getSinglePredecessor();  in MergeBasicBlockIntoOnlyPred()  local
688   assert(PredBB && "Block doesn't have a single predecessor!");  in MergeBasicBlockIntoOnlyPred()
691   if (PredBB == &DestBB->getParent()->getEntryBlock())  in MergeBasicBlockIntoOnlyPred()
699     Updates.push_back({DominatorTree::Delete, PredBB, DestBB});  in MergeBasicBlockIntoOnlyPred()
700     for (auto I = pred_begin(PredBB), E = pred_end(PredBB); I != E; ++I) {  in MergeBasicBlockIntoOnlyPred()
701       Updates.push_back({DominatorTree::Delete, *I, PredBB});  in MergeBasicBlockIntoOnlyPred()
720   PredBB->replaceAllUsesWith(DestBB);  in MergeBasicBlockIntoOnlyPred()
723   PredBB->getTerminator()->eraseFromParent();  in MergeBasicBlockIntoOnlyPred()
724   DestBB->getInstList().splice(DestBB->begin(), PredBB->getInstList());  in MergeBasicBlockIntoOnlyPred()
725   new UnreachableInst(PredBB->getContext(), PredBB);  in MergeBasicBlockIntoOnlyPred()
730     DestBB->moveAfter(PredBB);  in MergeBasicBlockIntoOnlyPred()
733     assert(PredBB->getInstList().size() == 1 &&  in MergeBasicBlockIntoOnlyPred()
734            isa<UnreachableInst>(PredBB->getTerminator()) &&  in MergeBasicBlockIntoOnlyPred()
738     DTU->deleteBB(PredBB);  in MergeBasicBlockIntoOnlyPred()
750     PredBB->eraseFromParent(); // Nuke BB if DTU is nullptr.  in MergeBasicBlockIntoOnlyPred()
929       BasicBlock *PredBB = OldValPN->getIncomingBlock(i);  in redirectValuesFromPredecessorsToPhi()  local
931       Value *Selected = selectIncomingValueForBlock(PredVal, PredBB,  in redirectValuesFromPredecessorsToPhi()
936       PN->addIncoming(Selected, PredBB);  in redirectValuesFromPredecessorsToPhi()
942       BasicBlock *PredBB = BBPreds[i];  in redirectValuesFromPredecessorsToPhi()  local
943       Value *Selected = selectIncomingValueForBlock(OldVal, PredBB,  in redirectValuesFromPredecessorsToPhi()
948       PN->addIncoming(Selected, PredBB);  in redirectValuesFromPredecessorsToPhi()