<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/100064>100064</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            llvm/lib/CodeGenData/CodeGenData.cpp:177: 2 * clumsy string passing
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            llvm:codegen,
            code-quality
      </td>
    </tr>

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

    <tr>
      <th>Reporter</th>
      <td>
          dcb314
      </td>
    </tr>
</table>

<pre>
    Static analyser cppcheck says:

trunk/llvm/lib/CodeGenData/CodeGenData.cpp:177:58: performance: Function parameter 'Hint' should be passed by const reference. [passedByValue]
trunk/llvm/lib/CodeGenData/CodeGenData.cpp:177:38: performance: Function parameter 'Whence' should be passed by const reference. [passedByValue]

Source code is

oid warn(Twine Message, std::string Whence, std::string Hint) {

</pre>
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