<html>
    <head>
      <base href="https://bugs.llvm.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 - false positive report: clang SA falsely assumes that the loop is executed 0 times"
   href="https://bugs.llvm.org/show_bug.cgi?id=32911">32911</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>false positive report: clang SA falsely assumes that the loop is executed 0 times
          </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>Windows NT
          </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>Static Analyzer
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>daniel.krupp@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Since clang SA falsely assumes that the loop is executed 0 times
it reports "The left operand of '==' is a garbage value" for the following
code:

static unsigned size = 32;

int init(int *s);
void assert(int);

static void test(void)
{
 int val;
 if (size>10){
  for (unsigned j = 0; j<size+1; j++)
  init(&val);
 assert((int) (val == 1));//false positive report
 }
}</pre>
        </div>
      </p>


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