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     Succ->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,  in FoldSingleEntryPHINodes()  argument
70   if (!isa<PHINode>(BB->begin())) return;  in FoldSingleEntryPHINodes()
72   while (PHINode *PN = dyn_cast<PHINode>(BB->begin())) {  in FoldSingleEntryPHINodes()
90 bool llvm::DeleteDeadPHIs(BasicBlock *BB, const TargetLibraryInfo *TLI) {  in DeleteDeadPHIs()  argument
94   for (BasicBlock::iterator I = BB->begin();  in DeleteDeadPHIs()
108 bool llvm::MergeBlockIntoPredecessor(BasicBlock *BB, DominatorTree *DT,  in MergeBlockIntoPredecessor()  argument
112   if (BB->hasAddressTaken()) return false;  in MergeBlockIntoPredecessor()
115   BasicBlock *PredBB = BB->getUniquePredecessor();  in MergeBlockIntoPredecessor()
119   if (PredBB == BB) return false;  in MergeBlockIntoPredecessor()
125   BasicBlock *OnlySucc = BB;  in MergeBlockIntoPredecessor()
136   for (BasicBlock::iterator BI = BB->begin(), BE = BB->end(); BI != BE; ++BI) {  in MergeBlockIntoPredecessor()
146   if (isa<PHINode>(BB->front()))  in MergeBlockIntoPredecessor()
147     FoldSingleEntryPHINodes(BB, MemDep);  in MergeBlockIntoPredecessor()
154   BB->replaceAllUsesWith(PredBB);  in MergeBlockIntoPredecessor()
157   PredBB->getInstList().splice(PredBB->end(), BB->getInstList());  in MergeBlockIntoPredecessor()
161     PredBB->takeName(BB);  in MergeBlockIntoPredecessor()
165     if (DomTreeNode *DTN = DT->getNode(BB)) {  in MergeBlockIntoPredecessor()
173       DT->eraseNode(BB);  in MergeBlockIntoPredecessor()
177     LI->removeBlock(BB);  in MergeBlockIntoPredecessor()
182   BB->eraseFromParent();  in MergeBlockIntoPredecessor()
238 BasicBlock *llvm::SplitEdge(BasicBlock *BB, BasicBlock *Succ, DominatorTree *DT,  in SplitEdge()  argument
240   unsigned SuccNum = GetSuccessorNumber(BB, Succ);  in SplitEdge()
243   TerminatorInst *LatchTerm = BB->getTerminator();  in SplitEdge()
253     assert(SP == BB && "CFG broken");  in SplitEdge()
260   assert(BB->getTerminator()->getNumSuccessors() == 1 &&  in SplitEdge()
262   return SplitBlock(BB, BB->getTerminator(), DT, LI);  in SplitEdge()
474 BasicBlock *llvm::SplitBlockPredecessors(BasicBlock *BB,  in SplitBlockPredecessors()  argument
479   if (!BB->canSplitPredecessors())  in SplitBlockPredecessors()
484   if (BB->isLandingPad()) {  in SplitBlockPredecessors()
488     SplitLandingPadPredecessors(BB, Preds, Suffix, NewName.c_str(), NewBBs, DT,  in SplitBlockPredecessors()
495       BB->getContext(), BB->getName() + Suffix, BB->getParent(), BB);  in SplitBlockPredecessors()
498   BranchInst *BI = BranchInst::Create(BB, NewBB);  in SplitBlockPredecessors()
499   BI->setDebugLoc(BB->getFirstNonPHI()->getDebugLoc());  in SplitBlockPredecessors()
508     Preds[i]->getTerminator()->replaceUsesOfWith(BB, NewBB);  in SplitBlockPredecessors()
517     for (BasicBlock::iterator I = BB->begin(); isa<PHINode>(I); ++I)  in SplitBlockPredecessors()
524   UpdateAnalysisInformation(BB, NewBB, Preds, DT, LI, PreserveLCSSA,  in SplitBlockPredecessors()
528   UpdatePHINodes(BB, NewBB, Preds, BI, HasLoopExit);  in SplitBlockPredecessors()
648 ReturnInst *llvm::FoldReturnIntoUncondBranch(ReturnInst *RI, BasicBlock *BB,  in FoldReturnIntoUncondBranch()  argument
670       if (PN->getParent() == BB) {  in FoldReturnIntoUncondBranch()
681   BB->removePredecessor(Pred);  in FoldReturnIntoUncondBranch()
787 Value *llvm::GetIfCondition(BasicBlock *BB, BasicBlock *&IfTrue,  in GetIfCondition()  argument
789   PHINode *SomePHI = dyn_cast<PHINode>(BB->begin());  in GetIfCondition()
799     pred_iterator PI = pred_begin(BB), PE = pred_end(BB);  in GetIfCondition()
840     if (Pred1Br->getSuccessor(0) == BB &&  in GetIfCondition()
845                Pred1Br->getSuccessor(1) == BB) {  in GetIfCondition()