<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 - sigsegv in llvm::PMTopLevelManager::addImmutablePass"
   href="https://bugs.llvm.org/show_bug.cgi?id=38007">38007</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>sigsegv in llvm::PMTopLevelManager::addImmutablePass
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>6.0
          </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>gienah@gentoo.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>The test is run on Gentoo linux amd64, with clang 6.0.1 (or 6.0.0) compiled
to use gold as its default linker:

-DCLANG_DEFAULT_LINKER=/usr/bin/ld.gold'

Compiling a trivial program:

argus% cat main.c
int main(){ return 0; }
argus% 

clang its a debug assertion, or crashes with a SIGSEGV when compiled without
debug:

argus% clang -save-temps -v -flto=thin
-Wl,-plugin=/usr/lib/llvm/6/lib64/LLVMgold.so main.c
clang version 6.0.1 (tags/RELEASE_601/final)
...
See the attached file clang-lto-plugin-sigsegv-bug-report.txt for the
stack trace.</pre>
        </div>
      </p>


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