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    <head>
      <base href="https://bugs.llvm.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Attributor may attempt to truncate a smaller value to a larger one"
   href="https://bugs.llvm.org/show_bug.cgi?id=51457">51457</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Attributor may attempt to truncate a smaller value to a larger one
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>libraries
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>trunk
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>enhancement
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Interprocedural Optimizations
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>jdoerfert@anl.gov
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr>

        <tr>
          <th>Blocks</th>
          <td>51236
          </td>
        </tr></table>
      <p>
        <div>
        <pre>While casting constants we did not explicitly check if the types were larger
before calling CreateTrunc, this crashed:

  store i32 42, i32* @bytes2                                                    
  %bc = bitcast i32* @bytes2 to i64*                                            
  %l = load i64, i64* %bc</pre>
        </div>
      </p>

        <div id="referenced">
          <hr style="border: 1px dashed #969696">
          <b>Referenced Bugs:</b>
          <ul>
              <li>
                [<a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [meta] 13.0.0 Release Blockers"
   href="https://bugs.llvm.org/show_bug.cgi?id=51236">Bug 51236</a>] [meta] 13.0.0 Release Blockers
              </li>
          </ul>
        </div>
        <br>

      <hr>
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      <ul>
          <li>You are on the CC list for the bug.</li>
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