<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 --- - trunk r264314 fails with polly: __multi3 is not available in the i386 compiler-rt"
   href="https://llvm.org/bugs/show_bug.cgi?id=27077">27077</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>trunk r264314 fails with polly: __multi3 is not available in the i386 compiler-rt
          </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>All
          </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>Other
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>jeremyhu@apple.com
          </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>i386 builds of ffmpeg trunk are failing to link when built with polly.  They
are linking just fine without polly.  x86_64 is fine.

LD    ffmpeg_g
Undefined symbols for architecture i386:
  "___multi3", referenced from:
      _color_correlation_bgr in libavfilter.a(vf_dctdnoiz.o)
      _color_correlation_rgb in libavfilter.a(vf_dctdnoiz.o)
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [ffmpeg_g] Error 1

__multi3 is only available in the compiler runtime on x86_64 and on Snow
Leopard+.  It is not on i386:

Looking at El Cap:

/usr/lib/system $ nm -arch i386 libcompiler_rt.dylib | grep multi3
0000588f S $ld$hide$os10.4$___multi3
00005890 S $ld$hide$os10.5$___multi3

/usr/lib/system $ nm -arch x86_64 libcompiler_rt.dylib | grep multi3
0000000000005c9f S $ld$hide$os10.4$___multi3
0000000000005ca0 S $ld$hide$os10.5$___multi3
0000000000004696 T ___multi3</pre>
        </div>
      </p>
      <hr>
      <span>You are receiving this mail because:</span>
      
      <ul>
          <li>You are on the CC list for the bug.</li>
      </ul>
    </body>
</html>