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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Wrong disassembly of MOV64mr with 32 bit operand"
href="http://llvm.org/bugs/show_bug.cgi?id=20338">20338</a>
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<th>Summary</th>
<td>Wrong disassembly of MOV64mr with 32 bit operand
</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>
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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>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>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>jmuizelaar@mozilla.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>mov qword ptr [eax], rcx
disassembles as:
67 48 89 08 mov dword ptr [eax], rcx
given:
llvm-mc -x86-asm-syntax=intel -filetype=obj -o object.o wrong-disasm.s
&& llvm-objdump -x86-asm-syntax=intel -d object.o
During disassembly, we incorrectly create a MOV32mr opcode instead of the
MOV64mr that we're supposed to create.</pre>
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