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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - SegFault with __builtin_bit_cast to templated type and auto return type"
href="https://bugs.llvm.org/show_bug.cgi?id=42936">42936</a>
</td>
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<th>Summary</th>
<td>SegFault with __builtin_bit_cast to templated type and auto return type
</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>All
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<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>Frontend
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>Roland.Schulz@Intel.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
</td>
</tr></table>
<p>
<div>
<pre>template<class T> struct S { int x;};
auto f() {
int t = 5;
return __builtin_bit_cast(S<int>, t);
}
Error:
1. <source>:8:41: current parser token ';'
2. <source>:6:10: parsing function body 'f'
3. <source>:6:10: in compound statement ('{}')
#4 0x0000557591fc2a05 clang::ASTContext::getASTRecordLayout(clang::RecordDecl
const*) const
(/opt/compiler-explorer/clang-trunk-20190808/bin/clang-10+0x47d8a05)
clang-10: error: unable to execute command: Segmentation fault (core dumped)
<a href="https://godbolt.org/z/4sPmp2">https://godbolt.org/z/4sPmp2</a></pre>
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