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List:       llvm-bugs
Subject:    [llvm-bugs] [Bug 63621] llvm-reduce does not preserve uselistorder with ThinLTO
From:       LLVM Bugs via llvm-bugs <llvm-bugs () lists ! llvm ! org>
Date:       2023-06-30 15:02:31
Message-ID: 20230630150231.cdfff0561e5b61c3 () email ! llvm ! org
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<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/63621>63621</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            llvm-reduce does not preserve uselistorder with ThinLTO
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            llvm-reduce
      </td>
    </tr>

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

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

<pre>
    ThinLTOBitcodeWriterPass is used for emitting ThinLTO objects in llvm-reduce, but \
it appears to not surface a way to preserve uselistorder like would be done for \
regular text IR or bitcode

https://github.com/llvm/llvm-project/blob/8099d6c20beeb9465eb036dcfc467a15c0ec516e/llvm/tools/llvm-reduce/ReducerWorkItem.cpp#L728
 </pre>
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