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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Inline assembly: 1 byte passed with constraint S" moved into DH instead of ESI"
href="https://llvm.org/bugs/show_bug.cgi?id=29061">29061</a>
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<th>Summary</th>
<td>Inline assembly: 1 byte passed with constraint S" moved into DH instead of ESI
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>All
</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>Backend: X86
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>philipp.kloke@web.de
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>This code
void test(char c)
{
__asm__("" : : "S"(c));
}
creates this disassembled output:
00000000 <test>:
0: 56 push %esi
1: 8a 74 24 08 mov 0x8(%esp),%dh
5: 5e pop %esi
6: c3 ret</pre>
</div>
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