<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/87454>87454</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            clang-10 build project with flag -flto Core dump. 
        </td>
    </tr>

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

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

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

<pre>
    I am actually using Xtensa DSP clang compiler, I use -flto flag to optimize my code，when link my program, it has a core dump failure as below. It confuses me a lot. Then I change the flag into -flto=thin, and it seems work well, But I'm worried that the code performance would decrease. Can Anybody help me this problem? 



</pre>
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