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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - CodeGenMapTable can fail to delete duplicate ColFieldValueMap entries"
href="https://llvm.org/bugs/show_bug.cgi?id=26196">26196</a>
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<th>Summary</th>
<td>CodeGenMapTable can fail to delete duplicate ColFieldValueMap entries
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<th>Product</th>
<td>tools
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<th>Version</th>
<td>3.7
</td>
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<th>Hardware</th>
<td>All
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>TableGen
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>stephen.montgomery333@gmail.com
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org, stoklund@2pi.dk
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>There is a loop in emitEnums() (CodeGenMapTable.cpp) whose purpose is to remove
duplicate column field values. I think this loop is wrong because it increments
the loop counter regardless of whether a duplicate value is deleted or not.
When a duplicate _is_ deleted, the next value is skipped. So two duplicate
values is OK but if there are 3 consecutive duplicates, the third one isn't
deleted.
This is a problem, for me at least, because I end up with an enum that has
duplicate enumerators and my instruction mapping code won't compile.
I guess an easy fix would be to decrement j whenever a value is deleted.</pre>
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