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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
35 lines
1.2 KiB
C++
35 lines
1.2 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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// This tests that libc++abi still provides __cxa_uncaught_exception() for
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// ABI compatibility, even though the Standard doesn't require it to.
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// __cxa_uncaught_exception was not re-exported from libc++ previously. This leads
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// to undefined symbols when linking against a libc++ that re-exports the symbols,
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// but running against a libc++ that doesn't. Fortunately, usage of __cxa_uncaught_exception()
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// in the wild seems to be close to non-existent.
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// XFAIL: using-built-library-before-llvm-19
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#include <cxxabi.h>
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#include <cassert>
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// namespace __cxxabiv1 {
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// extern bool __cxa_uncaught_exception () throw();
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// }
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struct A {
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~A() { assert( __cxxabiv1::__cxa_uncaught_exception()); }
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};
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int main () {
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try { A a; throw 3; assert(false); }
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catch (int) {}
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}
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