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    <head>
      <base href="https://llvm.org/bugs/" />
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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 --- - [LTO] Reject modules without a datalayout"
   href="https://llvm.org/bugs/show_bug.cgi?id=31123">31123</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[LTO] Reject modules without a datalayout
          </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>Interprocedural Optimizations
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>davide@freebsd.org
          </td>
        </tr>

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

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>In r287699, I changed lld to not emit an error when a bitcode file passed as
input doesn't contain a datalayout.
I previously added this check because we didn't set a default datalayout in lld
and that caused the linker to crash.
Now, lld switched to `lib/LTO` and we always call setDataLayout on the
LTOModule.

Mehdi (and Chandler) pointed out it would be a good thing(TM) to warn (or
error?) on modules without a datalayout. I agree, and I think the right place
to implement this (at least initially is lib/LTO).</pre>
        </div>
      </p>
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