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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 - undefined behavior in SelectionDAGAddressAnalysis.cpp"
href="https://bugs.llvm.org/show_bug.cgi?id=36074">36074</a>
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<th>Summary</th>
<td>undefined behavior in SelectionDAGAddressAnalysis.cpp
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>Macintosh
</td>
</tr>
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<th>OS</th>
<td>MacOS X
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<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>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>yannlaiglechapuy@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=19738" name="attach_19738" title="reduced code">attachment 19738</a> <a href="attachment.cgi?id=19738&action=edit" title="reduced code">[details]</a></span>
reduced code
With the attached reduced file:
<span class="quote">> llc -O1 SelectionDAG_UB.ll</span >
[...]lib/CodeGen/SelectionDAG/SelectionDAGAddressAnalysis.cpp:23:22:
runtime error: signed integer overflow: 7124803381091165632 -
-7949118599238474896 cannot be represented in type 'long long'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior
[...]lib/CodeGen/SelectionDAG/SelectionDAGAddressAnalysis.cpp:23:22 in
Stack dump:
0. Program arguments: llc -O1 SelectionDAG_UB.ll
1. Running pass 'Function Pass Manager' on module 'SelectionDAG_UB.ll'.
2. Running pass 'X86 DAG->DAG Instruction Selection' on function '@Test'</pre>
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