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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Incorrect output contradicting static_assert's"
href="https://bugs.llvm.org/show_bug.cgi?id=51302">51302</a>
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<th>Summary</th>
<td>Incorrect output contradicting static_assert's
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>12.0
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>Windows NT
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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++
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>fchelnokov@gmail.com
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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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<pre>The following correct code:
```
#include <iostream>
constexpr int p(auto) { return 0; }
constexpr int q() { return p(0); }
constexpr int p(auto) requires true { return 1; }
static_assert(p(0) == 1);
static_assert(q() == 0);
int main()
{
std::cout << q() << p(0) << '\n';
}
```
incorrectly prints `11` in Clang despite of static_assert's.</pre>
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