36 void llvm::DeleteDeadBlock(BasicBlock *BB) {  in DeleteDeadBlock()  argument
37   assert((pred_begin(BB) == pred_end(BB) ||  in DeleteDeadBlock()
39          BB->getSinglePredecessor() == BB) && "Block is not dead!");  in DeleteDeadBlock()
40   TerminatorInst *BBTerm = BB->getTerminator();  in DeleteDeadBlock()
45     BBTerm->getSuccessor(i)->removePredecessor(BB);  in DeleteDeadBlock()
48   while (!BB->empty()) {  in DeleteDeadBlock()
49     Instruction &I = BB->back();  in DeleteDeadBlock()
57     BB->getInstList().pop_back();  in DeleteDeadBlock()
61   BB->eraseFromParent();  in DeleteDeadBlock()
68 void llvm::FoldSingleEntryPHINodes(BasicBlock *BB, Pass *P) {  in FoldSingleEntryPHINodes()  argument
69   if (!isa<PHINode>(BB->begin())) return;  in FoldSingleEntryPHINodes()
78   while (PHINode *PN = dyn_cast<PHINode>(BB->begin())) {  in FoldSingleEntryPHINodes()
98 bool llvm::DeleteDeadPHIs(BasicBlock *BB, const TargetLibraryInfo *TLI) {  in DeleteDeadPHIs()  argument
102   for (BasicBlock::iterator I = BB->begin();  in DeleteDeadPHIs()
116 bool llvm::MergeBlockIntoPredecessor(BasicBlock *BB, Pass *P) {  in MergeBlockIntoPredecessor()  argument
118   if (BB->hasAddressTaken()) return false;  in MergeBlockIntoPredecessor()
121   BasicBlock *PredBB = BB->getUniquePredecessor();  in MergeBlockIntoPredecessor()
125   if (PredBB == BB) return false;  in MergeBlockIntoPredecessor()
130   BasicBlock *OnlySucc = BB;  in MergeBlockIntoPredecessor()
141   for (BasicBlock::iterator BI = BB->begin(), BE = BB->end(); BI != BE; ++BI) {  in MergeBlockIntoPredecessor()
151   if (isa<PHINode>(BB->front()))  in MergeBlockIntoPredecessor()
152     FoldSingleEntryPHINodes(BB, P);  in MergeBlockIntoPredecessor()
159   BB->replaceAllUsesWith(PredBB);  in MergeBlockIntoPredecessor()
162   PredBB->getInstList().splice(PredBB->end(), BB->getInstList());  in MergeBlockIntoPredecessor()
166     PredBB->takeName(BB);  in MergeBlockIntoPredecessor()
171       if (DomTreeNode *DTN = DT->getNode(BB)) {  in MergeBlockIntoPredecessor()
178         DT->eraseNode(BB);  in MergeBlockIntoPredecessor()
182         LI->removeBlock(BB);  in MergeBlockIntoPredecessor()
190   BB->eraseFromParent();  in MergeBlockIntoPredecessor()
241 BasicBlock *llvm::SplitEdge(BasicBlock *BB, BasicBlock *Succ, Pass *P) {  in SplitEdge()  argument
242   unsigned SuccNum = GetSuccessorNumber(BB, Succ);  in SplitEdge()
245   TerminatorInst *LatchTerm = BB->getTerminator();  in SplitEdge()
254     assert(SP == BB && "CFG broken");  in SplitEdge()
261   assert(BB->getTerminator()->getNumSuccessors() == 1 &&  in SplitEdge()
263   return SplitBlock(BB, BB->getTerminator(), P);  in SplitEdge()
442 BasicBlock *llvm::SplitBlockPredecessors(BasicBlock *BB,  in SplitBlockPredecessors()  argument
446   BasicBlock *NewBB = BasicBlock::Create(BB->getContext(), BB->getName()+Suffix,  in SplitBlockPredecessors()
447                                          BB->getParent(), BB);  in SplitBlockPredecessors()
450   BranchInst *BI = BranchInst::Create(BB, NewBB);  in SplitBlockPredecessors()
459     Preds[i]->getTerminator()->replaceUsesOfWith(BB, NewBB);  in SplitBlockPredecessors()
468     for (BasicBlock::iterator I = BB->begin(); isa<PHINode>(I); ++I)  in SplitBlockPredecessors()
475   UpdateAnalysisInformation(BB, NewBB, Preds, P, HasLoopExit);  in SplitBlockPredecessors()
478   UpdatePHINodes(BB, NewBB, Preds, BI, P, HasLoopExit);  in SplitBlockPredecessors()
594 ReturnInst *llvm::FoldReturnIntoUncondBranch(ReturnInst *RI, BasicBlock *BB,  in FoldReturnIntoUncondBranch()  argument
616       if (PN->getParent() == BB) {  in FoldReturnIntoUncondBranch()
627   BB->removePredecessor(Pred);  in FoldReturnIntoUncondBranch()
681 Value *llvm::GetIfCondition(BasicBlock *BB, BasicBlock *&IfTrue,  in GetIfCondition()  argument
683   PHINode *SomePHI = dyn_cast<PHINode>(BB->begin());  in GetIfCondition()
693     pred_iterator PI = pred_begin(BB), PE = pred_end(BB);  in GetIfCondition()
734     if (Pred1Br->getSuccessor(0) == BB &&  in GetIfCondition()
739                Pred1Br->getSuccessor(1) == BB) {  in GetIfCondition()