776   BasicBlock *PredBB = DestBB->getSinglePredecessor();  in MergeBasicBlockIntoOnlyPred()  local
777   assert(PredBB && "Block doesn't have a single predecessor!");  in MergeBasicBlockIntoOnlyPred()
779   bool ReplaceEntryBB = PredBB->isEntryBlock();  in MergeBasicBlockIntoOnlyPred()
788     Updates.reserve(Updates.size() + 2 * pred_size(PredBB) + 1);  in MergeBasicBlockIntoOnlyPred()
789     for (BasicBlock *PredOfPredBB : predecessors(PredBB))  in MergeBasicBlockIntoOnlyPred()
791       if (PredOfPredBB != PredBB)  in MergeBasicBlockIntoOnlyPred()
795     for (BasicBlock *PredOfPredBB : predecessors(PredBB))  in MergeBasicBlockIntoOnlyPred()
797         Updates.push_back({DominatorTree::Delete, PredOfPredBB, PredBB});  in MergeBasicBlockIntoOnlyPred()
798     Updates.push_back({DominatorTree::Delete, PredBB, DestBB});  in MergeBasicBlockIntoOnlyPred()
813   PredBB->replaceAllUsesWith(DestBB);  in MergeBasicBlockIntoOnlyPred()
816   PredBB->getTerminator()->eraseFromParent();  in MergeBasicBlockIntoOnlyPred()
817   DestBB->splice(DestBB->begin(), PredBB);  in MergeBasicBlockIntoOnlyPred()
818   new UnreachableInst(PredBB->getContext(), PredBB);  in MergeBasicBlockIntoOnlyPred()
823     DestBB->moveAfter(PredBB);  in MergeBasicBlockIntoOnlyPred()
826     assert(PredBB->size() == 1 &&  in MergeBasicBlockIntoOnlyPred()
827            isa<UnreachableInst>(PredBB->getTerminator()) &&  in MergeBasicBlockIntoOnlyPred()
831     DTU->deleteBB(PredBB);  in MergeBasicBlockIntoOnlyPred()
843     PredBB->eraseFromParent(); // Nuke BB if DTU is nullptr.  in MergeBasicBlockIntoOnlyPred()
1074       BasicBlock *PredBB = OldValPN->getIncomingBlock(i);  in redirectValuesFromPredecessorsToPhi()  local
1076       if (PredBB == CommonPred)  in redirectValuesFromPredecessorsToPhi()
1081           selectIncomingValueForBlock(PredVal, PredBB, IncomingValues);  in redirectValuesFromPredecessorsToPhi()
1085       PN->addIncoming(Selected, PredBB);  in redirectValuesFromPredecessorsToPhi()
1094       BasicBlock *PredBB = BBPreds[i];  in redirectValuesFromPredecessorsToPhi()  local
1096       if (PredBB == CommonPred)  in redirectValuesFromPredecessorsToPhi()
1100           selectIncomingValueForBlock(OldVal, PredBB, IncomingValues);  in redirectValuesFromPredecessorsToPhi()
1104       PN->addIncoming(Selected, PredBB);  in redirectValuesFromPredecessorsToPhi()