<html>
    <head>
      <base href="http://bugzilla.gdcproject.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 - Optimization makes incorrect results"
   href="http://bugzilla.gdcproject.org/show_bug.cgi?id=198">198</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Optimization makes incorrect results
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>GDC
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>4.9.x
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86_64
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>critical
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>gdc
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>ibuclaw@gdcproject.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>alex@sunopti.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=88" name="attach_88" title="A source file that shows the bug">attachment 88</a> <a href="attachment.cgi?id=88&action=edit" title="A source file that shows the bug">[details]</a></span>
A source file that shows the bug

I have reduced the example code as much as I can without making the bug
disappear.
If it is compiled with
gdc vector.d
I get :
f() = [1,2,3]

If it is compiled with 
gdc -O vector.d
I get :
f() = [nan, nan, nan]</pre>
        </div>
      </p>


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