<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 --- - likely wrong code bug"
   href="http://llvm.org/bugs/show_bug.cgi?id=17158">17158</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>likely wrong code bug
          </td>
        </tr>

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

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

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

        <tr>
          <th>Reporter</th>
          <td>regehr@cs.utah.edu
          </td>
        </tr>

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

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>regehr@john-home ~/z/reduce/r108 $ clang -O1 -w small.c ; ./a.out 
1
regehr@john-home ~/z/reduce/r108 $ clang -O2 -w small.c ; ./a.out 
0
regehr@john-home ~/z/reduce/r108 $ cat small.c
int printf(const char *, ...);
struct x0 {
  int x1;
  char x2;
};
struct x3 {
  struct x0 x4;
  char x5;
} x6;
int main() {
  struct x3 x7 = { { 0, 0 }, 1 };
  x6 = x7;
  x7.x4.x2;
  printf("%d\n", x6.x5);
  return 0;
}
regehr@john-home ~/z/reduce/r108 $ clang -v
clang version 3.4 (trunk 190166)
Target: x86_64-unknown-linux-gnu
Thread model: posix
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.7
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.7.3
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.7.3
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.7</pre>
        </div>
      </p>
      <hr>
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      <ul>
          <li>You are on the CC list for the bug.</li>
      </ul>
    </body>
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