<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/119222>119222</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Increased spilling in x264 with rva22u64 after bidirectional scheduling/register pressure tracking
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            backend:RISC-V
      </td>
    </tr>

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

    <tr>
      <th>Reporter</th>
      <td>
          lukel97
      </td>
    </tr>
</table>

<pre>
    After #115445 we seem to have significantly more spills in this function from x264 when compiling for rva22u64 -O3 (without RVV): https://godbolt.org/z/fcKdrjqxG

Unfortunately this seems to be the cause of a 1.8% regression on 525.x264_r from LLVM 19.1.5 to today: https://lnt.lukelau.me/db_default/v4/nts/profile/13/56/54

I don't think this necessarily warrants a revert given that the patch significantly improved performance for other benchmarks, at least with RVV, but I thought it would be worth flagging anyway. 
</pre>
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