<html>
    <head>
      <base href="http://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 --- - Do not know how to split this operator's operand"
   href="http://llvm.org/bugs/show_bug.cgi?id=15399">15399</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Do not know how to split this operator's operand
          </td>
        </tr>

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

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

        <tr>
          <th>Reporter</th>
          <td>scott+llvm+bugzilla@pakin.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvmbugs@cs.uiuc.edu
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=10110" name="attach_10110" title="Source code for bug reproducer">attachment 10110</a> <a href="attachment.cgi?id=10110&action=edit" title="Source code for bug reproducer">[details]</a></span>
Source code for bug reproducer

Clang is exploding when trying to link some bitcode that invokes
@llvm.x86.avx.cvt.pd2dq.256 (_mm256_cvtpd_epi32() in the C source file):

$ gcc -fplugin=/home/pakin/llvm/lib/dragonegg.so -fplugin-arg-dragonegg-emit-ir
-march=native -S split-op-op.c -o split-op-op.ll
$ clang split-op-op.ll
fatal error: error in backend: Do not know how to split this operator's
operand!

/usr/bin/ld: /tmp/split-op-op-6izk0w.o: No such file: No such file or directory
clang: error: clang frontend command failed with exit code 70 (use -v to see
invocation)
clang: error: linker command failed with exit code 1 (use -v to see invocation)
clang version 3.3 (trunk 176192)
Target: x86_64-unknown-linux-gnu
Thread model: posix
clang: note: diagnostic msg: PLEASE submit a bug report to
<a href="http://llvm.org/bugs/">http://llvm.org/bugs/</a> and include the crash backtrace, preprocessed source, and
associated run script.
clang: note: diagnostic msg: Error generating preprocessed source(s) - no
preprocessable inputs.

-- Scott</pre>
        </div>
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