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    <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 --- - Miscompile after Sanjoy's SCEV changes"
   href="https://llvm.org/bugs/show_bug.cgi?id=27944">27944</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Miscompile after Sanjoy's SCEV changes
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Polly
          </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>normal
          </td>
        </tr>

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

        <tr>
          <th>Component</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>polly-dev@googlegroups.com
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>tobias@grosser.es
          </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>It seems that after Sanjoys SCEV changes that happend between 115336 and 115351
a miscompile was introduced in FAIL: lencod.execution_time

<a href="http://lab.llvm.org:8011/builders/perf-x86_64-penryn-O3-polly-before-vectorizer-unprofitable/builds/3034">http://lab.llvm.org:8011/builders/perf-x86_64-penryn-O3-polly-before-vectorizer-unprofitable/builds/3034</a>

To the the build-breakage that happened before it is not easily possible to
track down the precise version.</pre>
        </div>
      </p>
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