<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/136373>136373</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Placeholder used in parameter name should conflict with placeholder used for automatic variable
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
            cor3ntin
      </td>
    </tr>

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

<pre>
    Given [CWG3005](http://wg21.link/cwg3005) we should reject the following:

```cpp
void f(int _) {
    int _; // error
}
```

godbolt: https://godbolt.org/z/1fa4njchc
</pre>
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