<html>
<head>
<base href="http://llvm.org/bugs/" />
</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 opt crash on csmith fuzz testcase"
href="http://llvm.org/bugs/show_bug.cgi?id=15440">15440</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>llvm opt crash on csmith fuzz testcase
</td>
</tr>
<tr>
<th>Product</th>
<td>tools
</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>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>opt
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>alonzakai@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>Created <span class=""><a href="attachment.cgi?id=10138" name="attach_10138" title="testcase">attachment 10138</a> <a href="attachment.cgi?id=10138&action=edit" title="testcase">[details]</a></span>
testcase
Attached is a testcase that was generated by the csmith fuzzer. It crashes when
run through opt -O1
$ opt -O1 emcc-0-basebc.bc -o out.bc
0 opt 0x0000000000db54d2
1 opt 0x0000000000db5853
2 libpthread.so.0 0x00007f67a27f0cb0
Stack dump:
0. Program arguments: /home/alon/Dev/llvmCore-3.2-rc3.install/bin/opt -O1
emcc-0-basebc.bc -o out.bc
1. Running pass 'Global Variable Optimizer' on module 'emcc-0-basebc.bc'.
Segmentation fault (core dumped)
This is on LLVM 3.2.</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>