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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - PDB emission fails with thin-lto"
href="https://bugs.llvm.org/show_bug.cgi?id=34499">34499</a>
</td>
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<tr>
<th>Summary</th>
<td>PDB emission fails with thin-lto
</td>
</tr>
<tr>
<th>Product</th>
<td>lld
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Windows NT
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>COFF
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>Alberto.Magni@microsoft.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=19107" name="attach_19107" title="Reproducer">attachment 19107</a> <a href="attachment.cgi?id=19107&action=edit" title="Reproducer">[details]</a></span>
Reproducer
Given the reproducer attached, the following sequence of commands
clang-cl /c /Zi /O2 -flto=thin foo.c
clang-cl /c /Zi /O2 -flto=thin main.c
lld-link /OUT:prog.exe /DEBUG /PDB:prog.pdb /subsystem:CONSOLE /entry:main
foo.obj main.obj
produces this error:
Native PDB Error: The entry already exists. The specified module already
exists
The following commands, with full LTO, work correctly:
clang-cl /c /Zi /O2 -flto foo.c
clang-cl /c /Zi /O2 -flto main.c
lld-link /OUT:prog.exe /DEBUG /PDB:prog.pdb /subsystem:CONSOLE /entry:main
foo.obj main.obj
I am using:
<a href="https://github.com/llvm-mirror/clang.git">https://github.com/llvm-mirror/clang.git</a>
3f0db6ed816c5fae9bf6a7b2b1711e8fc57b8589
<a href="https://github.com/llvm-mirror/llvm.git">https://github.com/llvm-mirror/llvm.git</a>
aba02efc6c6441eddd72388638f70cbb17e39b96
<a href="https://github.com/llvm-mirror/lld.git">https://github.com/llvm-mirror/lld.git</a>:
d470133e80e2090b7281880320ddead759c7fa2d</pre>
</div>
</p>
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