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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - ConstantData should not have use-lists"
href="https://llvm.org/bugs/show_bug.cgi?id=30513">30513</a>
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<th>Summary</th>
<td>ConstantData should not have use-lists
</td>
</tr>
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<th>Product</th>
<td>libraries
</td>
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<th>Version</th>
<td>trunk
</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>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Core LLVM classes
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>dexonsmith@apple.com
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<p>
<div>
<pre>r261464 added ConstantData as a code cleanup, but my real goal was to
eventually remove use-lists from types like ConstantInt and ConstantFP. Code
that walks through uses of i32 0 is usually wrong, and even when correct, is
usually inefficient.
Since r261464, I've been rather lazily committing patches to avoid iterating
through ConstantData use-lists. I'll send an RFC to llvm-dev in a moment with
more reasoning and some WIP patches (I'll post a link here after posting), but
I thought a PR to track remaining work would be in order.</pre>
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