| //===-------------- thread_local_destruction_order.pass.cpp ---------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // Darwin TLV finalization routines used to fail when creating a thread-local |
| // variable in the destructor for another thread-local variable: |
| // - http://lists.llvm.org/pipermail/cfe-dev/2016-November/051376.html |
| // - rdar://29523281 |
| // This was fixed in dyld in macos 10.15. |
| // |
| // XFAIL: macosx10.14 |
| // XFAIL: macosx10.13 |
| // XFAIL: macosx10.12 |
| // XFAIL: macosx10.11 |
| // XFAIL: macosx10.10 |
| // XFAIL: macosx10.9 |
| |
| // UNSUPPORTED: c++03 |
| // UNSUPPORTED: libcxxabi-no-threads |
| |
| #include <cassert> |
| #include <thread> |
| |
| int seq = 0; |
| |
| class OrderChecker { |
| public: |
| explicit OrderChecker(int n) : n_{n} { } |
| |
| ~OrderChecker() { |
| assert(seq++ == n_); |
| } |
| |
| private: |
| int n_; |
| }; |
| |
| template <int ID> |
| class CreatesThreadLocalInDestructor { |
| public: |
| ~CreatesThreadLocalInDestructor() { |
| thread_local OrderChecker checker{ID}; |
| } |
| }; |
| |
| OrderChecker global{7}; |
| |
| void thread_fn() { |
| static OrderChecker fn_static{5}; |
| thread_local CreatesThreadLocalInDestructor<2> creates_tl2; |
| thread_local OrderChecker fn_thread_local{1}; |
| thread_local CreatesThreadLocalInDestructor<0> creates_tl0; |
| } |
| |
| int main() { |
| static OrderChecker fn_static{6}; |
| |
| std::thread{thread_fn}.join(); |
| assert(seq == 3); |
| |
| thread_local OrderChecker fn_thread_local{4}; |
| thread_local CreatesThreadLocalInDestructor<3> creates_tl; |
| |
| return 0; |
| } |