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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - DSE miscompile"
href="http://llvm.org/bugs/show_bug.cgi?id=18068">18068</a>
</td>
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<tr>
<th>Summary</th>
<td>DSE miscompile
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</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>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Scalar Optimizations
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>hfinkel@anl.gov
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=11614" name="attach_11614" title="bugpoint reduced test case">attachment 11614</a> <a href="attachment.cgi?id=11614&action=edit" title="bugpoint reduced test case">[details]</a></span>
bugpoint reduced test case
ClangBugs2/diff/t43047 from PR16431 is a DSE miscompile.
To reproduce:
opt -o o.bc -basicaa -dse bugpoint-tooptimize.bc
clang o.bc bugpoint-tonotoptimize.bc -o t
./t < input.txt
res = 1910
whereas running:
clang bugpoint-tooptimize.bc bugpoint-tonotoptimize.bc -o t
./t < input.txt
res = 2553</pre>
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