<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 --- - False positive: Value stored is never read"
   href="http://llvm.org/bugs/show_bug.cgi?id=17948">17948</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>False positive: Value stored is never read
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>clang
          </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>Static Analyzer
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>kremenek@apple.com
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>immanuel.litzroth@cloudfounders.com
          </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>This code triggers a warning:
<span class="quote">> clang-problems.cpp:, Clang (LLVM based), Priority: Normal
> Value stored to 'i' is never read. </span >
Value is read in another thread.

<span class="quote">>></span >
struct Test
{
public:
    Test(bool& i_bool)
        : the_bool(i_bool)
    {}

    void
    run()
    {
        while(the_bool);
    }
    bool& the_bool;
};

void
schedule_test(Test* t)
{
    // puts it on a queue that is handled in another thread
    (void)t;
}

void f()
{
    bool i = false;
    Test* t = new Test(i);
    schedule_test(t);
    i = true;
    // wait for threadpool to become empty
}</pre>
        </div>
      </p>
      <hr>
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