92   static bool CanVary(const Expr *Ex,
618 bool IdempotentOperationChecker::CanVary(const Expr *Ex,  in CanVary()  argument
621   Ex = Ex->IgnoreParenCasts();  in CanVary()
623   if (Ex->getLocStart().isMacroID())  in CanVary()
626   switch (Ex->getStmtClass()) {  in CanVary()
658                        cast<const UnaryExprOrTypeTraitExpr>(Ex);  in CanVary()
665     return !isConstantOrPseudoConstant(cast<DeclRefExpr>(Ex), AC);  in CanVary()
669     const BinaryOperator *B = cast<const BinaryOperator>(Ex);  in CanVary()
681     const UnaryOperator *U = cast<const UnaryOperator>(Ex);  in CanVary()
691     return CanVary(cast<const ChooseExpr>(Ex)->getChosenSubExpr(  in CanVary()
695     return CanVary(cast<AbstractConditionalOperator>(Ex)->getCond(), AC);  in CanVary()