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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Segfault when assembling "test [eax],dl" or "xchg ecx,[esi+0x7e]""
href="http://llvm.org/bugs/show_bug.cgi?id=16065">16065</a>
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<tr>
<th>Summary</th>
<td>Segfault when assembling "test [eax],dl" or "xchg ecx,[esi+0x7e]"
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>3.2
</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>MC
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>ysangkok@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>These commands crash llvm-mc:
echo "test [eax],dl" | llvm-mc-3.2 -triple i386 -x86-asm-syntax intel
echo "xchg ecx,[esi+0x7e]" | llvm-mc-3.2 -triple i386 -x86-asm-syntax intel
Expected:
An error message.
Stack Trace:
0 libLLVM-3.2.so.1 0xb6f25898
1 libLLVM-3.2.so.1 0xb6f25f3c
2 0xb76f3400 __kernel_sigreturn + 0
3 libLLVM-3.2.so.1 0xb6acb190 llvm::MCExpr::print(llvm::raw_ostream&) const +
64
4 libLLVM-3.2.so.1 0xb6ffabc6
llvm::X86ATTInstPrinter::printOperand(llvm::MCInst const*, unsigned int,
llvm::raw_ostream&) + 246
5 libLLVM-3.2.so.1 0xb6ffc587
llvm::X86ATTInstPrinter::printMemReference(llvm::MCInst const*, unsigned int,
llvm::raw_ostream&) + 551
6 libLLVM-3.2.so.1 0xb6ffc9d8
llvm::X86ATTInstPrinter::printInstruction(llvm::MCInst const*,
llvm::raw_ostream&) + 456
7 libLLVM-3.2.so.1 0xb6ffd7d0 llvm::X86ATTInstPrinter::printInst(llvm::MCInst
const*, llvm::raw_ostream&, llvm::StringRef) + 208
8 libLLVM-3.2.so.1 0xb6aaa5bb
9 libLLVM-3.2.so.1 0xb6ff963b
10 libLLVM-3.2.so.1 0xb6b108f3
11 libLLVM-3.2.so.1 0xb6b13deb
12 llvm-mc-3.2 0x0804c188
13 libc.so.6 0xb5eed935 __libc_start_main + 245
14 llvm-mc-3.2 0x0804caf9</pre>
</div>
</p>
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