6f13c71d31
We ran into a FE crash and root caused to `ER.get()` on line 5584 here being nullptr. I think this is a result of not checking if ER here is invalid. Example of crash-on-valid C++ https://gist.github.com/yuxuanchen1997/576dce964666f0f8713fccacf5847138 Note that this crash happens only with `-std=c++20`.
34 lines
591 B
C++
34 lines
591 B
C++
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++20 %s
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// expected-no-diagnostics
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template <bool v>
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struct BC {
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static constexpr bool value = v;
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};
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template <typename T, typename Arg>
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struct Constructible : BC<__is_constructible(T, Arg)> {};
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template <typename T>
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using Requires = T::value;
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template <typename T>
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struct optional {
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template <typename U, Requires<Constructible<T, U>> = true>
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optional(U) {}
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};
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struct MO {};
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struct S : MO {};
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struct TB {
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TB(optional<S>) {}
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};
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class TD : TB, MO {
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using TB::TB;
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};
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void foo() {
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static_assert(Constructible<TD, TD>::value);
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}
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