<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 --- - Missed optimization: obviously dead STOREs left in bitcode"
   href="http://llvm.org/bugs/show_bug.cgi?id=16451">16451</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Missed optimization: obviously dead STOREs left in bitcode
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>libraries
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>3.2
          </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>Scalar Optimizations
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>David.Monniaux@imag.fr
          </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>Consider the following:

int valeur;
volatile int bidule;

void toto() {
  if (bidule) {
    valeur = 65;
  } else {
    valeur = 33;
  }
  if (bidule) {
    valeur++;
  } else {
    valeur--;
  }
}

This code could be compiled with a single STORE instruction at the end, yet
gets compiled with two STOREs, the first of which is dead.</pre>
        </div>
      </p>
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