229 struct LoopStructure;
243   bool isProfitableToTransform(const Loop &L, LoopStructure &LS);
459 struct LoopStructure {  struct
487   LoopStructure() = default;
489   template <typename M> LoopStructure map(M Map) const {  in map()  argument
490     LoopStructure Result;  in map()
506   static Optional<LoopStructure> parseLoopStructure(ScalarEvolution &, Loop &,
528     LoopStructure Structure;
592   changeIterationSpaceEnd(const LoopStructure &LS, BasicBlock *Preheader,
598   BasicBlock *createPreheader(const LoopStructure &LS, BasicBlock *OldPreheader,
606       LoopStructure &LS, BasicBlock *ContinuationBlockAndPreheader,
638   LoopStructure MainLoopStructure;
643                   const LoopStructure &LS, ScalarEvolution &SE,  in LoopConstrainer()
750 Optional<LoopStructure>
751 LoopStructure::parseLoopStructure(ScalarEvolution &SE, Loop &L,  in parseLoopStructure()
1033   LoopStructure Result;  in parseLoopStructure()
1193     const LoopStructure &LS, BasicBlock *Preheader, Value *ExitSubloopAt,  in changeIterationSpaceEnd()
1348     LoopStructure &LS, BasicBlock *ContinuationBlock,  in rewriteIncomingValuesForPHIs()
1358 BasicBlock *LoopConstrainer::createPreheader(const LoopStructure &LS,  in createPreheader()
1856                                                         LoopStructure &LS) {  in isProfitableToTransform()
1923   Optional<LoopStructure> MaybeLoopStructure =  in run()
1924       LoopStructure::parseLoopStructure(SE, *L, FailureReason);  in run()
1930   LoopStructure LS = *MaybeLoopStructure;  in run()