<html>
    <head>
      <base href="http://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 --- - Bad alignment in MultiSource/Benchmarks/PAQ8p"
   href="http://llvm.org/bugs/show_bug.cgi?id=18502">18502</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Bad alignment in MultiSource/Benchmarks/PAQ8p
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Test Suite
          </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>Nightly Tester
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>stoklund@2pi.dk
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvmbugs@cs.uiuc.edu
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>The template instantiation BH<4>::operator[] in paq8p.cpp contains:

  static U8 tmp[B];  // element to move to front
  if (j==M) {
    --j;
    memset(tmp, 0, B);
    *(U16*)tmp=chk;
    if (M>2 && t[(i+j)*B+2]>t[(i+j-1)*B+2]) --j;
  }

The SPARC linker is evil and doesn't align the global 'static U8 tmp[B]', so
the U16 store is unaligned and crashes.</pre>
        </div>
      </p>
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