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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [LegacyPassManager] PM does not verifies passes preserved by setPreservesAll()"
href="https://llvm.org/bugs/show_bug.cgi?id=24456">24456</a>
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<th>Summary</th>
<td>[LegacyPassManager] PM does not verifies passes preserved by setPreservesAll()
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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>Linux
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<th>Status</th>
<td>NEW
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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>Core LLVM classes
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>pavel.g.prokofiev@intel.com
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=14723" name="attach_14723" title="A unit test that uses setPreservesAll() and checks whether the analysis verified.">attachment 14723</a> <a href="attachment.cgi?id=14723&action=edit" title="A unit test that uses setPreservesAll() and checks whether the analysis verified.">[details]</a></span>
A unit test that uses setPreservesAll() and checks whether the analysis
verified.
The LegacyPassManager, PMDataManager::verifyPreservedAnalysis() iterates over
PreservedSet and calls verifyAnalysis() for each analysis.
In other hand, some passes use setPreservesAll() which setups a flag, but adds
nothing to the PreservedSet.
As a result only passes, added by addPreserved<T>(), will be verified.
A unit test reproducer is in attachment.</pre>
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