<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 --- - clang crashed when using LTO"
   href="http://llvm.org/bugs/show_bug.cgi?id=18641">18641</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>clang crashed when using LTO
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>clang
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>trunk
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>MacOS X
          </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>Modules
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>191919@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>clang svn trunk gave the following message when linking the executable:

Intrinsic name not mangled correctly for type arguments!
i64 (i8*, i1)* @llvm.objectsize.i64.p0i8
Broken module found, compilation aborted!
Stack dump:
0.    Running pass 'Function Pass Manager' on module 'ld-temp.o'.
1.    Running pass 'Module Verifier' on function '@XXX_CallbackProc'
clang: error: unable to execute command: Illegal instruction: 4
clang: error: linker command failed due to signal (use -v to see invocation)

then failed.

It worked fine without -flto. The version which came with Xcode 5.0.2 also
works fine.

Please let me know what information is needed for further investigation.

---

clang version:
$ /opt/bin/clang -v
clang version 3.5 (trunk 200285)
Target: x86_64-apple-darwin13.0.0
Thread model: posix

OS version:
$ uname -a
Darwin localhost 13.0.0 Darwin Kernel Version 13.0.0: Thu Sep 19 22:22:27 PDT
2013; root:xnu-2422.1.72~6/RELEASE_X86_64 x86_64

clang configuration:
$ ../llvm/configure --enable-optimized=YES --enable-assertions=NO --prefix=/opt
--enable-targets=host,x86,arm,aarch64</pre>
        </div>
      </p>
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