<html>
<head>
<base href="https://bugs.llvm.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - llvm-mc-7 fails to decode AVX-512 vshuff32x2, vshuff64x2, vshuff32x2 and vshuff64x2 opcodes."
href="https://bugs.llvm.org/show_bug.cgi?id=42293">42293</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>llvm-mc-7 fails to decode AVX-512 vshuff32x2, vshuff64x2, vshuff32x2 and vshuff64x2 opcodes.
</td>
</tr>
<tr>
<th>Product</th>
<td>tools
</td>
</tr>
<tr>
<th>Version</th>
<td>7.0
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>llvmc
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>hgreving@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>llvm-mc-7 fails to decode opcodes above.
e.g.
echo "0x62 0xf3 0x75 0x08 0x23 0xc2 0x25" | /usr/bin/llvm-mc-7 -disassemble
-triple=x86_64
.text
<stdin>:1:1: warning: invalid instruction encoding
0x62 0xf3 0x75 0x08 0x23 0xc2 0x25
^
<stdin>:1:26: warning: invalid instruction encoding
0x62 0xf3 0x75 0x08 0x23 0xc2 0x25
^
<stdin>:1:31: warning: invalid instruction encoding
0x62 0xf3 0x75 0x08 0x23 0xc2 0x25
^
Should be (e.g. from binutils)
objdump -d test | grep shuf
5fe: 62 f3 75 08 23 c2 25 vshuff32x4 $0x25,%xmm2,%xmm1,%xmm0</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>