<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/59395>59395</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [May be a BUG!] Use clang to compile this code will use a lot of memory... Reach more than 10G... Very AMAZING..
        </td>
    </tr>

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

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

    <tr>
      <th>Reporter</th>
      <td>
          VonSdite
      </td>
    </tr>
</table>

<pre>
    ```c++
#include <atomic>
class AmazingClass {
public:
    AmazingClass()
    {
        m_array = new std::atomic_uint32_t[1 << 26];
    }

    ~AmazingClass()
 {
        delete[] m_array;
    }

private:
 std::atomic_uint32_t* m_array;
};

int main(int argc, char const *argv[])
{
    return 0;
}
```

I don't know why it will use so much memory....

I try clang++ version:
- Ubuntu clang version 14.0.0-1ubuntu1
- clang version 13.0.1

It confuses me !!! 

I try `gcc/g++`. I have not encountered this problem.

Finally, I found a solution like this:
```c++
#include <atomic>
class AmazingClass {
public:
 AmazingClass()
    {
        auto* tmp = new std::atomic_uint32_t[1 << 26];  // It works !!!!
        m_array = tmp;
    }

 ~AmazingClass()
    {
        delete[] m_array;
 }

private:
    std::atomic_uint32_t* m_array;
};

int main(int argc, char const *argv[])
{
    return 0;
}
```
</pre>
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