<html>
    <head>
      <base href="https://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 --- - [polly] Segfault in polly::Scop::addLoopBoundsToHeaderDomain"
   href="https://llvm.org/bugs/show_bug.cgi?id=30952">30952</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[polly] Segfault in polly::Scop::addLoopBoundsToHeaderDomain
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Polly
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </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>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Optimizer
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>polly-dev@googlegroups.com
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>efriedma@codeaurora.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Testcase:

define void @f() {
a:
  br i1 undef, label %c, label %b

b:
  br label %d

c:
  ret void

d:
  switch i8 0, label %e [
    i8 71, label %d
    i8 56, label %d
  ]

e:
  unreachable
}


Crashes with opt -polly-scops -polly-process-unprofitable.

The crash is on the line "int idx = BI->getSuccessor(0) != HeaderBB;" in
polly::Scop::addLoopBoundsToHeaderDomain.</pre>
        </div>
      </p>
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      <ul>
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