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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - clang miscompiles basic C code involving modulo at -O3"
href="http://llvm.org/bugs/show_bug.cgi?id=20849">20849</a>
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<th>Summary</th>
<td>clang miscompiles basic C code involving modulo at -O3
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
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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>
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<th>Priority</th>
<td>P
</td>
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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>
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<th>Reporter</th>
<td>michaelni@gmx.at
</td>
</tr>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=12987" name="attach_12987" title="testcase">attachment 12987</a> <a href="attachment.cgi?id=12987&action=edit" title="testcase">[details]</a></span>
testcase
the attached code when compiled with -O3
gives totally wrong output on x86_64
that is values larger than 126
version:
Ubuntu clang version 3.5.0-svn216089-1~exp1 (branches/release_35) (based on
LLVM 3.5.0)</pre>
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