1339 template <typename ExtendOp> struct ExtendOpTraits {  struct
1352 struct ExtendOpTraits<SCEVSignExtendExpr> : public ExtendOpTraitsBase {  struct
1364 const ExtendOpTraitsBase::GetExtendExprTy ExtendOpTraits<
1368 struct ExtendOpTraits<SCEVZeroExtendExpr> : public ExtendOpTraitsBase {  struct
1380 const ExtendOpTraitsBase::GetExtendExprTy ExtendOpTraits<
1395   auto WrapType = ExtendOpTraits<ExtendOpTy>::WrapType;  in getPreStartForExtend()
1396   auto GetExtendExpr = ExtendOpTraits<ExtendOpTy>::GetExtendExpr;  in getPreStartForExtend()
1456       ExtendOpTraits<ExtendOpTy>::getOverflowLimitForStep(Step, &Pred, SE);  in getPreStartForExtend()
1470   auto GetExtendExpr = ExtendOpTraits<ExtendOpTy>::GetExtendExpr;  in getExtendAddRecStart()
1517   auto WrapType = ExtendOpTraits<ExtendOpTy>::WrapType;  in proveNoWrapByVaryingStart()
1546       const SCEV *Limit = ExtendOpTraits<ExtendOpTy>::getOverflowLimitForStep(  in proveNoWrapByVaryingStart()