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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - LVI only understands one range check idiom"
href="https://llvm.org/bugs/show_bug.cgi?id=27109">27109</a>
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<th>Summary</th>
<td>LVI only understands one range check idiom
</td>
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<th>Product</th>
<td>new-bugs
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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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>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>chandlerc@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=16115" name="attach_16115" title="Test case from John Regehr">attachment 16115</a> <a href="attachment.cgi?id=16115&action=edit" title="Test case from John Regehr">[details]</a></span>
Test case from John Regehr
There are numerous other range check idioms. We either need much more powerful
canonicalization or more patterns. I suspect a bit of both.
Attached is a test case from John Regehr as one motivating example.</pre>
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