410 struct LoopStructure {  struct
427   LoopStructure()  in LoopStructure()  function
432   template <typename M> LoopStructure map(M Map) const {  in map()  argument
433     LoopStructure Result;  in map()
447   static Optional<LoopStructure> parseLoopStructure(ScalarEvolution &,
472     LoopStructure Structure;
541   changeIterationSpaceEnd(const LoopStructure &LS, BasicBlock *Preheader,
548   BasicBlock *createPreheader(const LoopStructure &LS, BasicBlock *OldPreheader,
556       LoopStructure &LS, BasicBlock *ContinuationBlockAndPreheader,
585   LoopStructure MainLoopStructure;
588   LoopConstrainer(Loop &L, LoopInfo &LI, const LoopStructure &LS,  in LoopConstrainer()
622 Optional<LoopStructure>
623 LoopStructure::parseLoopStructure(ScalarEvolution &SE, BranchProbabilityInfo &BPI,  in parseLoopStructure()
810   LoopStructure Result;  in parseLoopStructure()
946     const LoopStructure &LS, BasicBlock *Preheader, Value *ExitSubloopAt,  in changeIterationSpaceEnd()
1102     LoopStructure &LS, BasicBlock *ContinuationBlock,  in rewriteIncomingValuesForPHIs()
1120 BasicBlock *LoopConstrainer::createPreheader(const LoopStructure &LS,  in createPreheader()
1407   Optional<LoopStructure> MaybeLoopStructure =  in runOnLoop()
1408       LoopStructure::parseLoopStructure(SE, BPI, *L, FailureReason);  in runOnLoop()
1414   LoopStructure LS = MaybeLoopStructure.getValue();  in runOnLoop()