<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/106182>106182</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [clang] error: clang frontend command failed with exit code 139
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            clang
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          gbresearch
      </td>
    </tr>
</table>

<pre>
    The following code fails with code 139:
```
template<class Base, template<class...> class S>
inline auto create_unique(auto&&... args) -> std::unique_ptr<Base>
requires(std::derived_from<std::remove_cvref_t<decltype(S{std::forward<decltype(args)>(args)...})>, Base>)
{
    using Type = std::remove_cvref_t<decltype(S{std::forward<decltype(args)>(args)...})>;
 return std::make_unique<Type>(std::forward<decltype(args)>(args)...);
}
```
removing constraint, code compiles. Full [demo](https://gcc.godbolt.org/z/5esrWsETT) in Code Explorer,
</pre>
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