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    <head>
      <base href="https://bugs.llvm.org/">
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - RuntimeDyldELF: Relocation R_PPC64_REL24 overflow"
   href="https://bugs.llvm.org/show_bug.cgi?id=32650">32650</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>RuntimeDyldELF: Relocation R_PPC64_REL24 overflow
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>libraries
          </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>Backend: PowerPC
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>Axel.Naumann@cern.ch
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=18283" name="attach_18283" title="IR reproducing the assertion">attachment 18283</a> <a href="attachment.cgi?id=18283&action=edit" title="IR reproducing the assertion">[details]</a></span>
IR reproducing the assertion

Running attached IR file as

$ lli -jit-kind=orc-mcjit R_PPC64_REL24.ir

triggers

Relocation R_PPC64_REL24 overflow
UNREACHABLE executed at
.../src/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp:761!


The IR is the minimized IR for

$ echo '#include <vector>
std::vector<char> l; int main() { return 0;}' | clang -x c++  -std=c++14 -c
-Xclang -emit-llvm -fno-use-cxa-atexit - -o -

on a Power8 PPC64le. llvm was built as Debug on CentOS 7.3 with GCC 6.3.0.



I bisected; the commit that introduced this failure was the (otherwise crucial,
wonderful) commit:



commit 04d404bad2a4338841d5ab5f0ec3908bbd62fa1a
Author: Lang Hames <<a href="mailto:lhames@gmail.com">lhames@gmail.com</a>>
Date:   Tue Aug 9 19:27:17 2016 +0000

    Re-apply r278065 (Weak symbol support in RuntimeDyld) with a fix for ELF.


    git-svn-id: <a href="https://llvm.org/svn/llvm-project/llvm/trunk@278149">https://llvm.org/svn/llvm-project/llvm/trunk@278149</a>
91177308-0d34-0410-b5e6-96231b3b80d8</pre>
        </div>
      </p>


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