[llvm-bugs] [Bug 141482] [clang-cl][Windows] consteval compilation error occurs when compiling the open source third-party library fmt

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Issue	141482
Summary	[clang-cl][Windows] consteval compilation error occurs when compiling the open source third-party library fmt
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Reporter	jiangxinhaha

    Clang version: 20.1.5

When compiling the open source third-party library fmt, support for c++20 was set, but consteval compilation errors still occurred. The Clang used is already the latest version。

1，The following is the compilation error code snippet：

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2，The error message:

![Image](https://github.com/user-attachments/assets/139bfc19-83bd-4ae2-b156-360cda27005b)

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