231 struct LoopStructure;
245   bool isProfitableToTransform(const Loop &L, LoopStructure &LS);
461 struct LoopStructure {  struct
489   LoopStructure() = default;
491   template <typename M> LoopStructure map(M Map) const {  in map()  argument
492     LoopStructure Result;  in map()
508   static Optional<LoopStructure> parseLoopStructure(ScalarEvolution &, Loop &,
530     LoopStructure Structure;
594   changeIterationSpaceEnd(const LoopStructure &LS, BasicBlock *Preheader,
600   BasicBlock *createPreheader(const LoopStructure &LS, BasicBlock *OldPreheader,
608       LoopStructure &LS, BasicBlock *ContinuationBlockAndPreheader,
640   LoopStructure MainLoopStructure;
645                   const LoopStructure &LS, ScalarEvolution &SE,  in LoopConstrainer()
752 Optional<LoopStructure>
753 LoopStructure::parseLoopStructure(ScalarEvolution &SE, Loop &L,  in parseLoopStructure()
1035   LoopStructure Result;  in parseLoopStructure()
1195     const LoopStructure &LS, BasicBlock *Preheader, Value *ExitSubloopAt,  in changeIterationSpaceEnd()
1350     LoopStructure &LS, BasicBlock *ContinuationBlock,  in rewriteIncomingValuesForPHIs()
1360 BasicBlock *LoopConstrainer::createPreheader(const LoopStructure &LS,  in createPreheader()
1854                                                         LoopStructure &LS) {  in isProfitableToTransform()
1921   Optional<LoopStructure> MaybeLoopStructure =  in run()
1922       LoopStructure::parseLoopStructure(SE, *L, FailureReason);  in run()
1928   LoopStructure LS = MaybeLoopStructure.getValue();  in run()