<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=http://email.email.llvm.org/c/eJylUj2P2zAM_TX2QlwgS7YvGTxcGxzQtejQVZZom3ey5Up00vTXl07TFp0LEJL4IfI9kn30t-7LRBmuFALMxDRaRrCwRsaFyQZYMQ2QcEyYM8UFhhRn4Akh2MziCGiz_MjgKbstZ_QwYcLCvBTqXKiXiXnNu6ZfRRJeCK_5EMJlPsQ0iulcVaau9a_ox6lfnSRJt6eV3Du0zUn3Dp2vS98ZfzInW9qNp5i6FFkAJxonLrcUun-rjcTT1h9cnEXZSz6upzXFN3QsKuW8YZZHY9qmLafOe1OrocUKddscjaorpdqTVsfB93WtfBlsjyF3RfOh0Lq37h0XLxW_HlvRC_0R5Hq0Rcx7wBoT777mXP4_Quq00iLqWLXGVOZgnqv--TRU2JpWgPuiVjhbCn96XKbunrLfxizOQJn_DqC0MtZxQbwTEoRMHLD7DVsG_E2qswAGCfguJJsz0HJB8Vm4CMSYIAtdx_DpMzi7xIWcDfTD8r4uVyEogT0tcQXy-1LxDVxcMtuFyzu57s7sJz0h1TM>53656</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            backport request: [x86] invert a vector select IR canonicalization with a binop identity constant
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            backend:X86,
            release:backport
      </td>
    </tr>

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

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

<pre>
    This will mitigate a potential perf regression from the last release as discussed here:
https://reviews.llvm.org/D113442

/cherry-pick 6592bcecd4
</pre>
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