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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - More expressions are considered live due to GCF simplification on chained short circuit logical binary operators."
href="http://llvm.org/bugs/show_bug.cgi?id=18159">18159</a>
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<th>Summary</th>
<td>More expressions are considered live due to GCF simplification on chained short circuit logical binary operators.
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<th>Product</th>
<td>clang
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>All
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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>Static Analyzer
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<th>Assignee</th>
<td>kremenek@apple.com
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<th>Reporter</th>
<td>ganna@apple.com
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>The Live Variable analyzes are keeping more expressions alive due to CFG
special handling of the chained short circuit logical operators. So far the
problem is only visible when the logical expressions require cleanups (the
binary operator is wrapped inside ExprWithCleanups.)
The incorrect live variable analyzes are problematic for Pavel's commit
r189090(refactor conditional expression evaluating code), which is a stepping
block for r189746 (temporary destructors).</pre>
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