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3497500946
This patch removes many annotations that are not relevant anymore since we don't support or test back-deploying to macOS < 10.13. It also cleans up raw usage of target triples to identify versions of dylibs shipped on prior versions of macOS, and uses the target-agnostic Lit features instead. Finally, it reorders both the Lit backdeployment features and the corresponding availability macros in the library in a way that makes more sense, and reformulates the Lit backdeployment features in terms of when a version of LLVM was introduced instead of encoding the system versions on which it hasn't been introduced yet. Although one can be derived from the other, encoding the negative form is extremely error-prone. Fixes #80901
43 lines
1.3 KiB
C++
43 lines
1.3 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 LLVM 9.
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// XFAIL: using-built-library-before-llvm-9
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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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