1322 template <typename ExtendOp> struct ExtendOpTraits {  struct
1335 struct ExtendOpTraits<SCEVSignExtendExpr> : public ExtendOpTraitsBase {  struct
1347 const ExtendOpTraitsBase::GetExtendExprTy ExtendOpTraits<
1351 struct ExtendOpTraits<SCEVZeroExtendExpr> : public ExtendOpTraitsBase {  struct
1363 const ExtendOpTraitsBase::GetExtendExprTy ExtendOpTraits<
1378   auto WrapType = ExtendOpTraits<ExtendOpTy>::WrapType;  in getPreStartForExtend()
1379   auto GetExtendExpr = ExtendOpTraits<ExtendOpTy>::GetExtendExpr;  in getPreStartForExtend()
1439       ExtendOpTraits<ExtendOpTy>::getOverflowLimitForStep(Step, &Pred, SE);  in getPreStartForExtend()
1453   auto GetExtendExpr = ExtendOpTraits<ExtendOpTy>::GetExtendExpr;  in getExtendAddRecStart()
1500   auto WrapType = ExtendOpTraits<ExtendOpTy>::WrapType;  in proveNoWrapByVaryingStart()
1529       const SCEV *Limit = ExtendOpTraits<ExtendOpTy>::getOverflowLimitForStep(  in proveNoWrapByVaryingStart()