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      <base href="https://bugs.webkit.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [JSC] Assertion failure in JSC::JSObject::putInline (super-property-access.js)"
   href="https://bugs.webkit.org/show_bug.cgi?id=157524">157524</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[JSC] Assertion failure in JSC::JSObject::putInline (super-property-access.js)
          </td>
        </tr>

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

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

        <tr>
          <th>Version</th>
          <td>WebKit Local 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>caitp&#64;igalia.com
          </td>
        </tr></table>
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        <pre>Failure in ftl-eager variants of super-property-access.js (introduced in <a href="http://trac.webkit.org/changeset/200586">http://trac.webkit.org/changeset/200586</a>)

```
   56      ALWAYS_INLINE bool JSObject::putInline(JSCell* cell, ExecState* exec, PropertyName propertyName, JSValue value, PutPropertySlot&amp; slot)
   57      {
   58          JSObject* thisObject = jsCast&lt;JSObject*&gt;(cell);
-&gt; 59          ASSERT(value);
   60          ASSERT(!Heap::heap(value) || Heap::heap(value) == Heap::heap(thisObject));
   61          VM&amp; vm = exec-&gt;vm();
   62      

```

reached via operationPutByValWithThisStrict</pre>
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