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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Assertion `idx < size()' failed in HandleUnionActiveMemberChange"
href="https://bugs.llvm.org/show_bug.cgi?id=45879">45879</a>
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<th>Summary</th>
<td>Assertion `idx < size()' failed in HandleUnionActiveMemberChange
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<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>peter@pcc.me.uk
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
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<p>
<div>
<pre>$ cat test-formatted.ii
struct a {
char b = 0;
};
struct s {
a f;
};
constexpr void m() {
a l;
l = s{}.f;
}
void p() { return m(); }
$ clang++ -c -o test.o test-formatted.ii -std=gnu++2a
clang++: ../llvm/include/llvm/ADT/SmallVector.h:180:
llvm::SmallVectorTemplateCommon::const_reference
llvm::SmallVectorTemplateCommon<clang::APValue::LValuePathEntry,
void>::operator[](llvm::SmallVectorTemplateCommon::size_type) const [T =
clang::APValue::LValuePathEntry]: Assertion `idx < size()' failed.</pre>
</div>
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