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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Frontend crash when compiling with -O2"
href="https://bugs.llvm.org/show_bug.cgi?id=49626">49626</a>
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<th>Summary</th>
<td>Frontend crash when compiling with -O2
</td>
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<th>Product</th>
<td>clang
</td>
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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>Linux
</td>
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>C++2a
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>koncek.marian@gmail.com
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</tr>
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<th>CC</th>
<td>blitzrakete@gmail.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<pre>Created <span class=""><a href="attachment.cgi?id=24656" name="attach_24656" title="short source which causes the crash">attachment 24656</a> <a href="attachment.cgi?id=24656&action=edit" title="short source which causes the crash">[details]</a></span>
short source which causes the crash
See (also as an attachment):
<a href="https://godbolt.org/z/fb9adx">https://godbolt.org/z/fb9adx</a>
compile with:
$ clang++ -std=c++2a example.cpp -O2
It seems like this crash happens only with this particular setup, i. e.
inheriting from std::array, casting to std::string_view and printing to cout.
Removing various parts made clang work fine.</pre>
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