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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 --- - Abort after class declaration as template argument"
href="http://llvm.org/bugs/show_bug.cgi?id=18653">18653</a>
</td>
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<tr>
<th>Summary</th>
<td>Abort after class declaration as template argument
</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>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>C++
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>pkeir@outlook.com
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=11968" name="attach_11968" title="The C++ code which produces the abort">attachment 11968</a> <a href="attachment.cgi?id=11968&action=edit" title="The C++ code which produces the abort">[details]</a></span>
The C++ code which produces the abort
The attached code causes clang to abort (core dump). The code provides a class
declaration as the template argument to a function call made within a class
template method. I believe this is a C++11 feature, and so I provide the
-std=c++11 flag; though the same error occurs without it.
clang++ -c -std=c++11 declbug.cpp
If I instead declare class newclass outside a code scope, for example outside
the class template, (so changing to external linkage), the abort disappears.
The errors produced start with:
clang:
/home/xxxxx/projects/llvm_src/local_repo/Mon-25-Nov-2013--11-46-50/llvm/tools/clang/lib/Sema/SemaTemplateInstantiate.cpp:2785:
llvm::PointerUnion<Decl *, LocalInstantiationScope::DeclArgumentPack *>
*clang::LocalInstantiationScope::findInstantiationOf(const clang::Decl *):
Assertion `isa<LabelDecl>(D) && "declaration not instantiated in this scope"'
failed.
clang++ --version provides:
clang version 3.4 (ssh://superserver/var/lib/git/clang.git
4695dcd5c247a1848faed59b575909bdf2829888)
(ssh://superserver/var/lib/git/llvm.git
53f84cf3a29b54666bd58749f2fdf9834ef4daa7)
Target: x86_64-unknown-linux-gnu
Thread model: posix</pre>
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