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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Miscompile of indexed floating point constant store"
href="https://bugs.llvm.org/show_bug.cgi?id=40644">40644</a>
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<th>Summary</th>
<td>Miscompile of indexed floating point constant store
</td>
</tr>
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<th>Product</th>
<td>libraries
</td>
</tr>
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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>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Common Code Generator Code
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>jonathanchesterfield@gmail.com
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>replaceStoreOfFPConstant called from DAGCombine replaces stores of floating
point constants with stores of integer constants without considering whether it
is an indexed or truncating store.
LegalizeDAG has the same oversight in OptimizeFloatStore.
A simple !isNormalStore() return would fix either, or a more comprehensive fix
would be to recreate indexed/truncating stores.
Thanks!
Jon</pre>
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