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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [x86 disassembler] Invalid used of 'w' suffix on push and pop using 64-bit registers"
href="https://bugs.llvm.org/show_bug.cgi?id=32806">32806</a>
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<th>Summary</th>
<td>[x86 disassembler] Invalid used of 'w' suffix on push and pop using 64-bit registers
</td>
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<th>Product</th>
<td>libraries
</td>
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<th>Version</th>
<td>3.9
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>MC
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>nholcomb@wisc.edu
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>The following instruction accesses a 64-bit register, but the mnemonic
indicates that it is using a 16-bit register. I tried assembling the output of
LLVM using gas and got an error.
Bytes: 67 49 5e
Output: popw %r14
Error from gas: incorrect register `%r14' used with `w' suffix
Expected: popq %r14</pre>
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