<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=http://email.email.llvm.org/c/eJylUk1vnDAQ_TXmYgWBDYgcfGCDUq2i5NDNH7DxLEzWYGqbRvvvO9C0p94q-Ws-_N4bj423d_U-QQQ-QuLOf0IAy39smICDDu7OxBOfQS-4jDxNOtFCKVzTnDFGSvbr6kPaFkwIkSfPr1vYk3jEeXV4ve9XeN9940Yf-cvhmHW8kWUwxZwVPSu63-ubTzhQ4HNCB6TI33ZqIj7HuAFnQtayESKzStpH-agzvaXJB_X95YKzX7ItODWltEYmOyaeaYyYps3kg5_JcO7nn-1hDf4DhkQm7tiRDrVs2zKbVG0KaWVRyaq0tmqvrakrra0U9SBAtEPmtAEXFatPTAijhxsslhi7LgxTU5GP1X32_0pQiULQKJuykmUhcqI1UA3CtIZYm5ZVBcwaXb7j5D6MWVAHpNnGSEGHkR74b1DHiOMCcAgnhQmTA3X56lRPUIsFe6KmPPvwrgP9ijdvgT_wV1K2d-KrwvOl38uS3en8RE1p_uVHPhGco1vZUZY6avoF7nzNag>53881</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            SimplifyDemandedBitsForTargetNode - Missing AArch64ISD::BIC & AArch64ISD::BICi handling
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            backend:AArch64
      </td>
    </tr>

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

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

<pre>
    These get lowered quite early, meaning that there are missed opportunities to further simplify the DAG based on the masked bits.

Noticed while looking at Issue #53622
</pre>
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