ed61d6a466
The use_system_cxx_lib Lit feature was only used for back-deployment testing. However, one immense hole in that setup was that we didn't have a proper way to test Apple's own libc++ outside of back-deployment, which was embodied by the fact that we needed to define _LIBCPP_DISABLE_AVAILABILITY when testing (see change in libcxx/utils/libcxx/test/params.py). This led to the apple-system testing configuration not checking for availability markup, which is obviously quite bad since the library we ship actually has availability markup. Using stdlib=<VENDOR>-libc++ instead to encode back-deployment restrictions on tests is simpler and it makes it possible to naturally support tests such as availability markup checking even in the tip-of-trunk Apple-libc++ configuration. Differential Revision: https://reviews.llvm.org/D146366
43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: no-exceptions
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// ___cxa_throw_bad_array_new_length is re-exported from libc++ only starting
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// in macosx 10.15
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// XFAIL: stdlib=apple-libc++ && target={{.+}}-apple-macosx10.{{9|10|11|12|13|14}}
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#include <cxxabi.h>
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#include <new>
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// If the expression passed to operator new[] would result in an overflow, the
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// allocation function is not called, and a std::bad_array_new_length exception
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// is thrown instead (5.3.4p7).
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bool bad_array_new_length_test() {
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try {
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// We test this directly because Clang does not currently codegen the
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// correct call to __cxa_bad_array_new_length, so this test would result
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// in passing -1 to ::operator new[], which would then throw a
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// std::bad_alloc, causing the test to fail.
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__cxxabiv1::__cxa_throw_bad_array_new_length();
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} catch ( const std::bad_array_new_length &banl ) {
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return true;
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}
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return false;
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}
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int main(int, char**) {
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int ret_val = 0;
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if ( !bad_array_new_length_test ()) {
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ret_val = 1;
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}
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return ret_val;
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}
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