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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - First-class (metadata-based) IR for debug info"
href="http://llvm.org/bugs/show_bug.cgi?id=21432">21432</a>
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<th>Summary</th>
<td>First-class (metadata-based) IR for debug info
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>All
</td>
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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>Core LLVM classes
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>dexonsmith@apple.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>We should have first-class (for some metadata-based definition of the term) IR
for debug info. High-level: instead of using generic `MDNode`s for debug info,
use classes with customized assembly, bitcode serialization, ownership, and
memory representation.
This is an umbrella bug for the work coming out of the RFC [1] a few weeks ago,
and there are more details in the LLVMdev post about `MDLocation` [2].
[1]: <a href="http://lists.cs.uiuc.edu/pipermail/llvmdev/2014-October/077715.html">http://lists.cs.uiuc.edu/pipermail/llvmdev/2014-October/077715.html</a>
[2]: <a href="http://lists.cs.uiuc.edu/pipermail/llvmdev/2014-October/078173.html">http://lists.cs.uiuc.edu/pipermail/llvmdev/2014-October/078173.html</a></pre>
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</p>
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