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<base href="http://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Segfault when using a variable template initialized by a lambda inside a lambda"
href="http://llvm.org/bugs/show_bug.cgi?id=20046">20046</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Segfault when using a variable template initialized by a lambda inside a lambda
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Macintosh
</td>
</tr>
<tr>
<th>OS</th>
<td>MacOS X
</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>C++1y
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>ldionne.2@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=12661" name="attach_12661" title="Test cases with comments">attachment 12661</a> <a href="attachment.cgi?id=12661&action=edit" title="Test cases with comments">[details]</a></span>
Test cases with comments
Hi,
The following code causes a segmentation fault on Clang r210972:
------------------------------------------------------------------------------
template <typename ...Anything>
auto variable_template = [] { return 1; }();
int main() {
auto f = [](auto) { return variable_template<>; };
f(1);
}
------------------------------------------------------------------------------
The error message is (no stack trace; see the attached test cases):
------------------------------------------------------------------------------
clang-3.5: error: unable to execute command: Segmentation fault: 11
clang-3.5: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 3.5.0
Target: x86_64-apple-darwin13.2.0
Thread model: posix
clang-3.5: note: diagnostic msg: PLEASE submit a bug report to
<a href="http://llvm.org/bugs/">http://llvm.org/bugs/</a> and include the crash backtrace, preprocessed source, and
associated run script.
clang-3.5: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-3.5: note: diagnostic msg:
/var/folders/1t/g6fmf1h52nq1b6k9gnv600xc0000gn/T/worksheet-07b61d.cpp
clang-3.5: note: diagnostic msg:
/var/folders/1t/g6fmf1h52nq1b6k9gnv600xc0000gn/T/worksheet-07b61d.sh
clang-3.5: note: diagnostic msg:
********************
------------------------------------------------------------------------------
The exact command line is:
~/code/llvm/build/bin/clang++ -std=c++1y -o /dev/null
~/desktop/bugreport/worksheet.cpp
I also attached a couple of test cases with comments.
Regards,
Louis Dionne</pre>
</div>
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