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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - extern template of template-overloaded function crashes"
href="https://bugs.llvm.org/show_bug.cgi?id=32359">32359</a>
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<th>Summary</th>
<td>extern template of template-overloaded function crashes
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>3.9
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>-New Bugs
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>bloerwald@googlemail.com
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=18140" name="attach_18140" title="backtrace of clang 3.9.1 crash">attachment 18140</a> <a href="attachment.cgi?id=18140&action=edit" title="backtrace of clang 3.9.1 crash">[details]</a></span>
backtrace of clang 3.9.1 crash
The source
struct trait {
struct type;
};
template<typename Trait> struct templ {
templ (typename Trait::type);
template<typename Direct> templ (Direct);
};
extern template templ<trait>::templ (trait::type);
where the `templ` ctor is overloaded crashes in
clang::Sema::ActOnExplicitInstantiation >
clang::Sema::getMoreSpecializedTemplate with attached backtrace, while instead
it should reject due to ambiguous extern template (is there even a way to
disambiguate, or is that a langauge issue?).
This is the case in at least clang 3.5.1 to 3.9.1.</pre>
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