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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Missing handling of endianness(host) != endianess(target) in ExecutionEngine::LoadValueFromMemory"
href="https://llvm.org/bugs/show_bug.cgi?id=27832">27832</a>
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<th>Summary</th>
<td>Missing handling of endianness(host) != endianess(target) in ExecutionEngine::LoadValueFromMemory
</td>
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<th>Product</th>
<td>libraries
</td>
</tr>
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<th>Version</th>
<td>3.8
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
</tr>
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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>
</tr>
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<th>Component</th>
<td>Generic Execution Engine Support
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>llvm@christian-eichler.de
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=16394" name="attach_16394" title="Example .ll (big endian targetlayout)">attachment 16394</a> <a href="attachment.cgi?id=16394&action=edit" title="Example .ll (big endian targetlayout)">[details]</a></span>
Example .ll (big endian targetlayout)
Method `ExecutionEngine::StoreValueToMemory` reverses the byte order in memory
if the endianness of host and target do not match.
Method `ExecutionEngine::LoadValueFromMemory` currently does not undo that
operation, leading to loading of incorrect values.
Running lli with the .ll file attached to this report shows different return
values for `lli -force-interpreter loadstore_endian.ll` and `lli
loadstore_endian.ll` when executed on a little endian system.
This statement holds (at least) for lli from LLVM 3.4 up to LLVM 3.8</pre>
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