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third_party/libcxxabi: Add test suite (#1076)

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Added the `libcxxabi` test suite as found in LLVM 17.0.6.

Some tests that do not apply to the current configuration of
comsopolitan are not added. These include:
- `backtrace_test`, `forced_unwind*`: Use unwind function unsupported in
SjLj mode.
- `noexception*`: Designed to test `libcxxabi` in no exceptions mode.

Some tests are added but not enabled due to bugs specific to GCC or
cosmopolitan. These are clearly indicated in the `BUILD.mk` file.
This commit is contained in:
Trung Nguyen 2024-01-09 01:50:06 +07:00 • committed by GitHub
parent 8fb24a8f88
commit b0566348b2
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65 changed files with 43262 additions and 2 deletions
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53
third_party/libcxxabi/test/catch_reference_nullptr.pass.cc vendored Normal file
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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03
// UNSUPPORTED: no-exceptions
#include "third_party/libcxx/cassert"
#include "third_party/libcxx/cstddef"
#include "third_party/libcxx/cstdlib"
#include "third_party/libcxx/type_traits"
struct A {};
template<typename T, bool CanCatchNullptr>
static void catch_nullptr_test() {
try {
throw nullptr;
} catch (T &p) {
assert(CanCatchNullptr && !static_cast<bool>(p));
} catch (...) {
assert(!CanCatchNullptr);
}
}
int main(int, char**)
{
static_assert(std::is_same<std::nullptr_t, decltype(nullptr)>::value, "");
// A reference to nullptr_t can catch nullptr.
catch_nullptr_test<std::nullptr_t, true>();
catch_nullptr_test<const std::nullptr_t, true>();
catch_nullptr_test<volatile std::nullptr_t, true>();
catch_nullptr_test<const volatile std::nullptr_t, true>();
// No other reference type can.
#if 0
// FIXME: These tests fail, because the ABI provides no way for us to
// distinguish this from catching by value.
catch_nullptr_test<void *, false>();
catch_nullptr_test<void * const, false>();
catch_nullptr_test<int *, false>();
catch_nullptr_test<A *, false>();
catch_nullptr_test<int A::*, false>();
catch_nullptr_test<int (A::*)(), false>();
#endif
return 0;
}