55 bool llvm::ConstantFoldTerminator(BasicBlock *BB, bool DeleteDeadConditions) {  in ConstantFoldTerminator()  argument
56   TerminatorInst *T = BB->getTerminator();  in ConstantFoldTerminator()
77       OldDest->removePredecessor(BB);  in ConstantFoldTerminator()
148       BasicBlock *BB = SI->getParent();  in ConstantFoldTerminator()  local
157           Succ->removePredecessor(BB);  in ConstantFoldTerminator()
209         BB->getTerminator()->eraseFromParent();  in ConstantFoldTerminator()
210         new UnreachableInst(BB->getContext(), BB);  in ConstantFoldTerminator()
356 bool llvm::SimplifyInstructionsInBlock(BasicBlock *BB, const TargetData *TD) {  in SimplifyInstructionsInBlock()  argument
364   AssertingVH<Instruction> TerminatorVH(--BB->end());  in SimplifyInstructionsInBlock()
367   for (BasicBlock::iterator BI = BB->begin(), E = --BB->end(); BI != E; ) {  in SimplifyInstructionsInBlock()
375         BI = BB->begin();  in SimplifyInstructionsInBlock()
381       BI = BB->begin();  in SimplifyInstructionsInBlock()
402 void llvm::RemovePredecessorAndSimplify(BasicBlock *BB, BasicBlock *Pred,  in RemovePredecessorAndSimplify()  argument
405   if (!isa<PHINode>(BB->begin()))  in RemovePredecessorAndSimplify()
411   BB->removePredecessor(Pred, true);  in RemovePredecessorAndSimplify()
413   WeakVH PhiIt = &BB->front();  in RemovePredecessorAndSimplify()
424     if (PhiIt != OldPhiIt) PhiIt = &BB->front();  in RemovePredecessorAndSimplify()
487 static bool CanPropagatePredecessorsForPHIs(BasicBlock *BB, BasicBlock *Succ) {  in CanPropagatePredecessorsForPHIs()  argument
488   assert(*succ_begin(BB) == Succ && "Succ is not successor of BB!");  in CanPropagatePredecessorsForPHIs()
490   DEBUG(dbgs() << "Looking to fold " << BB->getName() << " into "   in CanPropagatePredecessorsForPHIs()
497   SmallPtrSet<BasicBlock*, 16> BBPreds(pred_begin(BB), pred_end(BB));  in CanPropagatePredecessorsForPHIs()
507     PHINode *BBPN = dyn_cast<PHINode>(PN->getIncomingValueForBlock(BB));  in CanPropagatePredecessorsForPHIs()
508     if (BBPN && BBPN->getParent() == BB) {  in CanPropagatePredecessorsForPHIs()
521       Value* Val = PN->getIncomingValueForBlock(BB);  in CanPropagatePredecessorsForPHIs()
545 bool llvm::TryToSimplifyUncondBranchFromEmptyBlock(BasicBlock *BB) {  in TryToSimplifyUncondBranchFromEmptyBlock()  argument
546   assert(BB != &BB->getParent()->getEntryBlock() &&  in TryToSimplifyUncondBranchFromEmptyBlock()
550   BasicBlock *Succ = cast<BranchInst>(BB->getTerminator())->getSuccessor(0);  in TryToSimplifyUncondBranchFromEmptyBlock()
551   if (BB == Succ) return false;  in TryToSimplifyUncondBranchFromEmptyBlock()
555   if (!CanPropagatePredecessorsForPHIs(BB, Succ)) return false;  in TryToSimplifyUncondBranchFromEmptyBlock()
570     BasicBlock::iterator BBI = BB->begin();  in TryToSimplifyUncondBranchFromEmptyBlock()
575           if (PN->getIncomingBlock(UI) != BB)  in TryToSimplifyUncondBranchFromEmptyBlock()
585   DEBUG(dbgs() << "Killing Trivial BB: \n" << *BB);  in TryToSimplifyUncondBranchFromEmptyBlock()
591     const SmallVector<BasicBlock*, 16> BBPreds(pred_begin(BB), pred_end(BB));  in TryToSimplifyUncondBranchFromEmptyBlock()
596       Value *OldVal = PN->removeIncomingValue(BB, false);  in TryToSimplifyUncondBranchFromEmptyBlock()
601       if (isa<PHINode>(OldVal) && cast<PHINode>(OldVal)->getParent() == BB) {  in TryToSimplifyUncondBranchFromEmptyBlock()
624     BB->getTerminator()->eraseFromParent();  in TryToSimplifyUncondBranchFromEmptyBlock()
625     Succ->getInstList().splice(Succ->getFirstNonPHI(), BB->getInstList());  in TryToSimplifyUncondBranchFromEmptyBlock()
627     while (PHINode *PN = dyn_cast<PHINode>(&BB->front())) {  in TryToSimplifyUncondBranchFromEmptyBlock()
635   BB->replaceAllUsesWith(Succ);  in TryToSimplifyUncondBranchFromEmptyBlock()
636   if (!Succ->hasName()) Succ->takeName(BB);  in TryToSimplifyUncondBranchFromEmptyBlock()
637   BB->eraseFromParent();              // Delete the old basic block.  in TryToSimplifyUncondBranchFromEmptyBlock()
646 bool llvm::EliminateDuplicatePHINodes(BasicBlock *BB) {  in EliminateDuplicatePHINodes()  argument
662   for (BasicBlock::iterator I = BB->begin();  in EliminateDuplicatePHINodes()