1268 template <typename ExtendOp> struct ExtendOpTraits {  struct
1281 struct ExtendOpTraits<SCEVSignExtendExpr> : public ExtendOpTraitsBase {  struct
1293 const ExtendOpTraitsBase::GetExtendExprTy ExtendOpTraits<
1297 struct ExtendOpTraits<SCEVZeroExtendExpr> : public ExtendOpTraitsBase {  struct
1309 const ExtendOpTraitsBase::GetExtendExprTy ExtendOpTraits<
1324   auto WrapType = ExtendOpTraits<ExtendOpTy>::WrapType;  in getPreStartForExtend()
1325   auto GetExtendExpr = ExtendOpTraits<ExtendOpTy>::GetExtendExpr;  in getPreStartForExtend()
1388       ExtendOpTraits<ExtendOpTy>::getOverflowLimitForStep(Step, &Pred, SE);  in getPreStartForExtend()
1402   auto GetExtendExpr = ExtendOpTraits<ExtendOpTy>::GetExtendExpr;  in getExtendAddRecStart()
1449   auto WrapType = ExtendOpTraits<ExtendOpTy>::WrapType;  in proveNoWrapByVaryingStart()
1478       const SCEV *Limit = ExtendOpTraits<ExtendOpTy>::getOverflowLimitForStep(  in proveNoWrapByVaryingStart()