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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW " title="NEW --- - Assertion failure in clang regression test" href="https://urldefense.proofpoint.com/v2/url?u=https-3A__llvm.org_bugs_show-5Fbug.cgi-3Fid-3D24305&d=AwMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=8p6H-lwBr_h9933_0_LUops3YgIqzZHiQ8eZy5Bt1SI&s=xHWyTizFtTfTVOf4M1OlD1pkOr0o3sCZgbtd1MIZOso&e=">24305</a>
</td>
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<th>Summary</th>
<td>Assertion failure in clang regression test
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>C++11
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>sunil_srivastava@playstation.sony.com
</td>
</tr>
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<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>Following example, trimmed from
llvm/tools/clang/test/CXX/class/class.union/p1.cpp gives assertion failure with
-std=c++11
$ cat p1.cpp
class CopyCtor {
CopyCtor(CopyCtor &cc);
};
template <class A, class B> struct Either {
bool tag;
union {
A a;
B b;
};
Either(const A& a) : tag(true), a(a) {}
};
void fred() {
Either<int,CopyCtor> copyctor(0);
}
$ clang++ -S -std=c++11 p1.cpp
…/llvm/tools/clang/include/clang/AST/DeclCXX.h:909: void
clang::CXXRecordDecl::setImplicitMoveConstructorIsDeleted(): Assertion
`(data().DefaultedMoveConstructorIsDeleted ||
needsOverloadResolutionForMoveConstructor()) && "move constructor should not be
deleted"' failed.
…..
clang version 3.8.0 (trunk 243453)
Target: x86_64-unknown-linux-gnu
Thread model: posix</pre>
</div>
</p>
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