112     bool CanMergeBlocks(const BasicBlock *BB, const BasicBlock *DestBB) const;
227     BasicBlock *DestBB = BI->getSuccessor(0);  in EliminateMostlyEmptyBlocks()  local
228     if (DestBB == BB)  in EliminateMostlyEmptyBlocks()
231     if (!CanMergeBlocks(BB, DestBB))  in EliminateMostlyEmptyBlocks()
244                                     const BasicBlock *DestBB) const {  in CanMergeBlocks()
253       if (User->getParent() != DestBB || !isa<PHINode>(User))  in CanMergeBlocks()
258       if (User->getParent() == DestBB) {  in CanMergeBlocks()
273   const PHINode *DestBBPN = dyn_cast<PHINode>(DestBB->begin());  in CanMergeBlocks()
290       BBI = DestBB->begin();  in CanMergeBlocks()
314   BasicBlock *DestBB = BI->getSuccessor(0);  in EliminateMostlyEmptyBlock()  local
316   DEBUG(dbgs() << "MERGING MOSTLY EMPTY BLOCKS - BEFORE:\n" << *BB << *DestBB);  in EliminateMostlyEmptyBlock()
320   if (BasicBlock *SinglePred = DestBB->getSinglePredecessor()) {  in EliminateMostlyEmptyBlock()
321     if (SinglePred != DestBB) {  in EliminateMostlyEmptyBlock()
325       MergeBasicBlockIntoOnlyPred(DestBB, this);  in EliminateMostlyEmptyBlock()
330       DEBUG(dbgs() << "AFTER:\n" << *DestBB << "\n\n\n");  in EliminateMostlyEmptyBlock()
338   for (BasicBlock::iterator BBI = DestBB->begin();  in EliminateMostlyEmptyBlock()
366   BB->replaceAllUsesWith(DestBB);  in EliminateMostlyEmptyBlock()
369     BasicBlock *DestBBIDom = DT->getNode(DestBB)->getIDom()->getBlock();  in EliminateMostlyEmptyBlock()
371     DT->changeImmediateDominator(DestBB, NewIDom);  in EliminateMostlyEmptyBlock()
375     PFI->replaceAllUses(BB, DestBB);  in EliminateMostlyEmptyBlock()
376     PFI->removeEdge(ProfileInfo::getEdge(BB, DestBB));  in EliminateMostlyEmptyBlock()
381   DEBUG(dbgs() << "AFTER:\n" << *DestBB << "\n\n\n");  in EliminateMostlyEmptyBlock()