69   BasicBlock *unifyReturnBlockSet(Function &F, DomTreeUpdater &DTU,
70                                   ArrayRef<BasicBlock *> ReturningBlocks,
118                                BasicBlock &BB) {  in isUniformlyReached()
119   SmallVector<BasicBlock *, 8> Stack(predecessors(&BB));  in isUniformlyReached()
120   SmallPtrSet<BasicBlock *, 8> Visited;  in isUniformlyReached()
123     BasicBlock *Top = Stack.pop_back_val();  in isUniformlyReached()
127     for (BasicBlock *Pred : predecessors(Top)) {  in isUniformlyReached()
136 BasicBlock *AMDGPUUnifyDivergentExitNodes::unifyReturnBlockSet(  in unifyReturnBlockSet()
137     Function &F, DomTreeUpdater &DTU, ArrayRef<BasicBlock *> ReturningBlocks,  in unifyReturnBlockSet()
142   BasicBlock *NewRetBlock = BasicBlock::Create(F.getContext(), Name, &F);  in unifyReturnBlockSet()
159   for (BasicBlock *BB : ReturningBlocks) {  in unifyReturnBlockSet()
175   for (BasicBlock *BB : ReturningBlocks) {  in unifyReturnBlockSet()
200   SmallVector<BasicBlock *, 4> ReturningBlocks;  in runOnFunction()
201   SmallVector<BasicBlock *, 4> UnreachableBlocks;  in runOnFunction()
204   BasicBlock *DummyReturnBB = nullptr;  in runOnFunction()
209   for (BasicBlock *BB : PDT.roots()) {  in runOnFunction()
220         DummyReturnBB = BasicBlock::Create(F.getContext(),  in runOnFunction()
229         BasicBlock *LoopHeaderBB = BI->getSuccessor(0);  in runOnFunction()
235         SmallVector<BasicBlock *, 2> Successors(successors(BB));  in runOnFunction()
238         BasicBlock *TransitionBB = BB->splitBasicBlock(BI, "TransitionBlock");  in runOnFunction()
245         for (BasicBlock *Successor : Successors) {  in runOnFunction()
261     BasicBlock *UnreachableBlock = nullptr;  in runOnFunction()
266       UnreachableBlock = BasicBlock::Create(F.getContext(),  in runOnFunction()
271       for (BasicBlock *BB : UnreachableBlocks) {  in runOnFunction()