<html>
    <head>
      <base href="https://llvm.org/bugs/" />
    </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 --- - Port DITypeRef/DIScopeRef/DIRef to the new debug info hierarchy"
   href="https://llvm.org/bugs/show_bug.cgi?id=23081">23081</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Port DITypeRef/DIScopeRef/DIRef to the new debug info hierarchy
          </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>All
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

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

        <tr>
          <th>Component</th>
          <td>Core LLVM classes
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>dexonsmith@apple.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>aprantl@apple.com, dblaikie@gmail.com, echristo@gmail.com, friss@apple.com, llvmbugs@cs.uiuc.edu
          </td>
        </tr>

        <tr>
          <th>Blocks</th>
          <td>23080
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Currently, any field in the debug info hierarchy that can point at an
MDCompositeType returns `Metadata*`, since it could be an MDString or an
MDCompositeType.

We should port the DITypeRef/DIScopeRef/etc. wrappers over so that the factory
functions and accessors are more restrictive and clear.</pre>
        </div>
      </p>
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