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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 - [GVNSink] Seg Fault after deep recursion in lookupOrAdd()"
href="https://bugs.llvm.org/show_bug.cgi?id=36954">36954</a>
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<th>Summary</th>
<td>[GVNSink] Seg Fault after deep recursion in lookupOrAdd()
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Scalar Optimizations
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>paulsson@linux.vnet.ibm.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=20144" name="attach_20144" title="reduced testcase">attachment 20144</a> <a href="attachment.cgi?id=20144&action=edit" title="reduced testcase">[details]</a></span>
reduced testcase
bin/opt -mtriple=s390x-linux-gnu -mcpu=z13 ./tc_gvnsink.ll -S -o /dev/null -O3
-enable-gvn-sink
#255 0x000002aa1f364dea (anonymous
namespace)::ValueTable::lookupOrAdd(llvm::Value*) (bin/opt+0xe64dea)
Stack dump:
0. Program arguments: bin/opt -mtriple=s390x-linux-gnu -mcpu=z13
./tc_gvnsink.ll -S -o /dev/null -O3 -enable-gvn-sink
1. Running pass 'CallGraph Pass Manager' on module './tc_gvnsink.ll'.
2. Running pass 'Early GVN sinking of Expressions' on function '@2'
Segmentation fault</pre>
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