383     struct DAGRootTracker {  struct in __anon25f666240111::LoopReroll
384       DAGRootTracker(LoopReroll *Parent, Loop *L, Instruction *IV,  in DAGRootTracker()  function
406       using UsesTy = MapVector<Instruction *, BitVector>;
435       LoopReroll *Parent;
438       Loop *L;
439       ScalarEvolution *SE;
440       AliasAnalysis *AA;
441       TargetLibraryInfo *TLI;
442       DominatorTree *DT;
443       LoopInfo *LI;
444       bool PreserveLCSSA;
447       Instruction *IV;
450       int64_t Inc;
455       uint64_t Scale;
458       SmallVector<DAGRootSet,16> RootSets;
461       SmallInstructionVector LoopIncs;
466       UsesTy Uses;
469       DenseMap<Instruction *, int64_t> &IVToIncMap;
471       Instruction *LoopControlIV;