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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - COFF LTO creates object files MSVC cannot read"
href="https://llvm.org/bugs/show_bug.cgi?id=31884">31884</a>
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<th>Summary</th>
<td>COFF LTO creates object files MSVC cannot read
</td>
</tr>
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<th>Product</th>
<td>libraries
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>MC
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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</tr>
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<th>Reporter</th>
<td>ruiu@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>I tried to link medium size programs with LLD's new command line option,
/msvclto. That option does LTO in LLD and then pass resulting object files to
MSVC link.exe.
When I attempt to link ninja, MSVC link failed with the following error.
lld-lto-5b59ce.obj : fatal error LNK1243: invalid or corrupt file: COMDAT
section 0x22C associated with following section 0x22F
Looks like MSVC cannot handle forward references when reading associated
sections. We probably have to emit associated sections first and then
references to them next.</pre>
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</p>
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