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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - "fatal error: error in backend" code with exceptions in clang for msvc in Release x64 configuration"
href="https://llvm.org/bugs/show_bug.cgi?id=25307">25307</a>
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<th>Summary</th>
<td>"fatal error: error in backend" code with exceptions in clang for msvc in Release x64 configuration
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
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<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>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>-New Bugs
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>adamf88@gmail.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>Created <span class=""><a href="attachment.cgi?id=15151" name="attach_15151" title="Sample code to reproduce the error">attachment 15151</a> <a href="attachment.cgi?id=15151&action=edit" title="Sample code to reproduce the error">[details]</a></span>
Sample code to reproduce the error
I used the most recent build available to download:
LLVM-3.8.0-r250698-win32.exe
If I try to compile attached code in Visual Studio 2010 (using Platform
Toolset: LLVM-vs2010, Configuration: Release and Platform: x64) then I get an
error:
CL : fatal error : error in backend: assembler label '.LBB0_-1' can not be
undefined
I can reproduce it only in configuration Release x64 with O2 flag.
I know exceptions aren't ready yet for MSVC, but maybe this scenario will be
helpful.</pre>
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