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        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Unit put_by_id_with_this and put_by_id instructions"
   href="https://bugs.webkit.org/show_bug.cgi?id=162125">162125</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Unit put_by_id_with_this and put_by_id instructions
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>WebKit Nightly Build
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>JavaScriptCore
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>ticaiolima&#64;gmail.com
          </td>
        </tr></table>
      <p>
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        <pre>The current implementation is using the instruction op_put_by_id_with_this to handle super setter bindings correctly. This operand is just a call to slow path which means that setters called from super aren't optimized to use IC or accessor inlining.

To unify these opcodes, we need to add one more operand on op_put_by_id to store the this reference and teach the following layers and ICs that base and this operands sometimes aren't the same.</pre>
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      </p>
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          <li>You are the assignee for the bug.</li>
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