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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 - "Instruction does not dominate all uses" with opt -disable-basicaa -loop-versioning"
   href="https://bugs.llvm.org/show_bug.cgi?id=37650">37650</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>"Instruction does not dominate all uses" with opt -disable-basicaa -loop-versioning
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>new-bugs
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </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>new bugs
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>mikael.holmen@ericsson.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=20380" name="attach_20380" title="reproducer">attachment 20380</a> <a href="attachment.cgi?id=20380&action=edit" title="reproducer">[details]</a></span>
reproducer

opt -S -o - bbi-14805.ll -disable-basicaa -loop-versioning

gives

Instruction does not dominate all uses!
  %inc = add nsw i16 undef, 1
  store i16 %inc, i16* @c, align 1
LLVM ERROR: Broken function found, compilation aborted!

Found when running random passes/flags on random input. We don't normally use
-disable-basicaa -loop-versioning.

This happens also with some old opt binary built in Nov 2016.</pre>
        </div>
      </p>


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