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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - __builtin_dump_struct crashed on struct with bitfields"
href="https://bugs.llvm.org/show_bug.cgi?id=50091">50091</a>
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<th>Summary</th>
<td>__builtin_dump_struct crashed on struct with bitfields
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>11.0
</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>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>C
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>ijkxyz@msn.com
</td>
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<th>CC</th>
<td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=24795" name="attach_24795" title="clang created preprocessed source file and script">attachment 24795</a> <a href="attachment.cgi?id=24795&action=edit" title="clang created preprocessed source file and script">[details]</a></span>
clang created preprocessed source file and script
The following code makes clang crash. It happened on clang8, clang11 and
clang12.
typedef union {
struct {
int a : 2;
int b : 2;
};
int asInt;
} MyBitFields;
MyBitFields r;
int main() {
__builtin_dump_struct(&r, &printf);
return 0;
}</pre>
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