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SDK7.0生成的kernel,浮点运算有问题



应用SDK7.0生成的KERNEL跑一下之前代码发现有问题,而且问题是在浮点运算里面,不知道FAE的大牛们有没有好的建议?

如:double dValue = 3000000;

        double test1 = log10(dValue);

        dValue = 3000000000LU;

        test2 = log10(dValue);

分别打印test1和test2是一个-0.000000和0.000000,这里非常奇怪,而且在老的SDK上代码没有问题。

我也确认过了kernel的组件里选择的浮点项目都是一样的