<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/143336>143336</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [ASAN] "-fsanitize=address" flag halting the executable
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          saksham-joshi
      </td>
    </tr>
</table>

<pre>
    ## Code:
```cpp
// CPP VERSION = c++17
#include <exception>
#include <iostream>

struct FileNameNotProvidedToCompiler : public std::exception {
    inline virtual const char* what() const noexcept override {
        return "getting the file name";
    }
};

int main() {
    try {
        throw FileNameNotProvidedToCompiler();
    } catch (const FileNameNotProvidedToCompiler& excep) {
        std::cerr << excep.what() << std::endl;
    }
    std::cerr << "\n >>>> Done <<<<";
}
````

## Issue:
- The above code is being compiled with this command:
   ```bash
   clang++ experi.cpp -o experi.exe -Wall -std=c++17 -fsanitize=address
   ```
- There are no compilation errors.
- But after executing the executable (i.e. experi.exe), the output is nothing.
-  **Neither the ASAN displayed any problem nor the ```std::cerr```**.
- After removing the flag "-fsanitize=address",
  ```bash
   clang++ experi.cpp -o experi.exe -Wall -std=c++17
  ```
   the code compiles with no issues and the executable ran with no problem.
- I ran the same code in online compilers, and it ran with no issues.
- I also used onlinegdb.com's extra compiler flags feature where I placed "-fsanitize=address" as a compiler flag and it ran smoothly. (NOTE: onlinegdb.com uses GCC for C/C++).

## My specs:
- OS: Windows 11 24H2
- Processor: i5 10th gen (x64 arch)
- RAM: 8 GB DDR4
- Clang-version: 20.1.6


> ## Please fix this issue and if I am lacking some knowledge, please teach me. Thank You in Advance🩵.
</pre>
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