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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - x86-64 VAArg fails for Mixed GP-FP Structures"
href="http://llvm.org/bugs/show_bug.cgi?id=20018">20018</a>
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<th>Summary</th>
<td>x86-64 VAArg fails for Mixed GP-FP Structures
</td>
</tr>
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<th>Product</th>
<td>clang
</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>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>
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<th>Component</th>
<td>-New Bugs
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>tjablin@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=12649" name="attach_12649" title="Test case">attachment 12649</a> <a href="attachment.cgi?id=12649&action=edit" title="Test case">[details]</a></span>
Test case
When reading a struct with mixed GP-FP type as a variadic argument, if the
struct starts with two floats, then LLVM will try to read the floats from
gp_offset rather than fp_offset. The underlying problem is that
CodeGen/TargetInfo.cpp on line 2593 is checking if the structures types are
floats when it should be checking if they are floats or float vectors. I have
attached a simple test case.</pre>
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