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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - TrieEdge leak in MachONormalizedFileBinaryWriter.cpp"
href="http://llvm.org/bugs/show_bug.cgi?id=21682">21682</a>
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<th>Summary</th>
<td>TrieEdge leak in MachONormalizedFileBinaryWriter.cpp
</td>
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<th>Product</th>
<td>lld
</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>All
</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>All Bugs
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>devlists@shadowlab.org
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<p>
<div>
<pre>TrieNode uses a SmallVector to store TrieEdge children.
But TrieNode is allocated using an llvm::bumpPtr allocator, and so its
destructor is never invoked when the memory is freed. As a result the
SmallVector destructor is never call either, and as the SmallVector is not
allocator aware, the memory managed by the SmallVector leaks.
A possible solution would be to use an other structure to store the TrieEdge
(chained list) that does not require additional memory allocation.
TrieEdge will contain a pointer to its sibling, and will be allocated using the
llvm bumpPtr allocator.</pre>
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</p>
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