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.NET 编译器对添加的限制？

发布于 2024-10-25 22:44:05 字数 8886 浏览 4 评论 0原文

我和我的同事刚刚发现 vb.net 代码中可以使用的参数数量似乎有限制。

对我来说奇怪的是，这段代码会构建，但是当我运行它时，它会抛出一个 InvalidProgramException ，说“JIT 编译器遇到了内部限制”。

以前有人见过这样的事情吗？你能指出为什么会发生这种情况吗？

（我在 VS 2010 中使用 .net 4.0。我们在 VS 2008 中发现了这一点，结果略有不同。）

示例代码：

    Dim bigVariable As Double = 10.35
    Dim factor As Double = 1.3
    Dim hugeNumberOfArgs As Double = (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor)

        Console.WriteLine("Result: " & hugeNumberOfArgs)
        Console.ReadKey()
原文

My co-worker and i just found that there seems to be a limitation on the number of parameters that can be used in vb.net code.

What's strange to me is that this code will build but when i run it, it throws an InvalidProgramException saying that the "JIT Compiler encountered an internal limitation".

Has anyone seen anything like this before? Can you point me to why this is happening?

(i'm using .net 4.0 with VS 2010. We found this in VS 2008 and it had a slightly different result.)

Sample code:

    Dim bigVariable As Double = 10.35
    Dim factor As Double = 1.3
    Dim hugeNumberOfArgs As Double = (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) +
(bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor) + (bigVariable * factor)

        Console.WriteLine("Result: " & hugeNumberOfArgs)
        Console.ReadKey()

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梓梦 2024-11-01 22:44:05

经过进一步调查，我不认为这是编译器问题。代码在调试中崩溃，但在零售中工作正常。我已经对 IL 进行了几次比较，但没有发现明显的差异。

这个错误也在 C# 中重现。如果您尝试自己重现此问题，请确保将 /debug+ 传递给命令行编译器。

这似乎是 JIT 编译中的一个错误。防止调试模式下崩溃的一种方法是添加以下代码行

<Assembly: Debuggable(DebuggableAttribute.DebuggingModes.DisableOptimizations)>

一旦添加，代码将成功执行。这以及两种语言的重现强烈表明这是 JIT 流程中的一个错误。

After further investigation I don't believe this is a compiler issue. The code crashes in Debug and works fine in Retail. I've diff'd the IL a few times and can't come across a discernable difference.

Also this bug repros in C# as well. If you're trying to repro this yourself make sure you pass /debug+ to the command line compiler.

This appears to be a bug in the JIT compilation. One way to prevent the crash in debug mode is to add the following line of code

<Assembly: Debuggable(DebuggableAttribute.DebuggingModes.DisableOptimizations)>

Once this is added the code will execute successfully. This and reproing in both languages strongly suggests that it's a bug in the JIT process.

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