<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 --- - Assertion `Origin && "Missing origin"' failed."
   href="http://llvm.org/bugs/show_bug.cgi?id=22494">22494</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Assertion `Origin && "Missing origin"' failed.
          </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>Miscellaneous Instrumentation passes
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>hans@chromium.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>eugeni.stepanov@gmail.com, llvmbugs@cs.uiuc.edu
          </td>
        </tr>

        <tr>
          <th>Blocks</th>
          <td>22374
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=13817" name="attach_13817" title="unreduced repro">attachment 13817</a> <a href="attachment.cgi?id=13817&action=edit" title="unreduced repro">[details]</a></span>
unreduced repro

This fires when building Chromium with msan.

This reproduces on the 3.6 release branch, so I've marked it a release blocker.

Unreduced repro attached. Run line:

clang "-cc1" "-triple" "x86_64-unknown-linux-gnu" "-emit-obj" "-disable-free" 
"-mrelocation-model" "pic" "-pic-level" "2" "-mthread-model" "posix"
"-mdisable-fp-elim" "-relaxed-aliasing" "-fmath-errno" "-masm-verbose"
"-mconstructor-aliases" "-munwind-tables" "-fuse-init-array" "-target-cpu"
"x86-64" "-momit-leaf-frame-pointer" "-gline-tables-only" "-dwarf-column-info"
"-ffunction-sections" "-fdata-sections" "-nostdinc++"  "-O2"  "-std=gnu++11"
"-fdeprecated-macro"  "-fvisibility" "hidden" "-fvisibility-inlines-hidden"
"-fsanitize=memory" "-fsanitize-memory-track-origins=2"
"-fno-assume-sane-operator-new" "-pthread" "-stack-protector" "1"
"-stack-protector-buffer-size" "4" "-mstackrealign" "-fno-rtti"
"-fno-threadsafe-statics" "-fobjc-runtime=gcc" "-vectorize-loops"
"-vectorize-slp" "-x" "c++" "missingorigin.cpp"</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>