<html>
<head>
<base href="https://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 --- - crash in llvm::ReplaceableMetadataImpl::get during 'Combine redundant instructions'"
href="https://llvm.org/bugs/show_bug.cgi?id=26219">26219</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>crash in llvm::ReplaceableMetadataImpl::get during 'Combine redundant instructions'
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Windows NT
</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>-New Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>rogero@howzatt.demon.co.uk
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=15672" name="attach_15672" title="Original source code">attachment 15672</a> <a href="attachment.cgi?id=15672&action=edit" title="Original source code">[details]</a></span>
Original source code
The following short program crashes with clang++ with -O2 or -O3:
#include <map>
#include <vector>
int main()
{
std::map<int, int> m;
const std::vector<char> vec { 0 };
for (auto it = vec.begin(); it != vec.end(); ++it)
{}
}
I'm using a clang built from a recent (Jan 11th) git snapshot.
clang++ -std=c++11 -O2 -Weverything combine-redundant-instructions-crash.cxx -c
-save-temps
uname -a: Linux linuxdev121 2.6.32-573.3.1.el6.x86_64 #1 SMP Thu Aug 13
12:55:33 CDT 2015 x86_64 x86_64 x86_64 GNU/Linux</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>