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from 89d9c634dc5 dwarf2: ICE with local class in unused function [PR97918] new 83a1beee276 libstdc++: Add C++2a synchronization support

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Summary of changes: libstdc++-v3/include/Makefile.am | 5 + libstdc++-v3/include/Makefile.in | 5 + libstdc++-v3/include/bits/atomic_base.h | 195 ++++++++++++- libstdc++-v3/include/bits/atomic_timed_wait.h | 287 +++++++++++++++++++ libstdc++-v3/include/bits/atomic_wait.h | 306 +++++++++++++++++++++ libstdc++-v3/include/bits/semaphore_base.h | 296 ++++++++++++++++++++ libstdc++-v3/include/std/atomic | 78 ++++++ libstdc++-v3/include/std/latch | 91 ++++++ libstdc++-v3/include/std/semaphore | 92 +++++++ libstdc++-v3/include/std/version | 2 + .../1.cc => 29_atomics/atomic/wait_notify/bool.cc} | 55 ++-- .../atomic/wait_notify/generic.cc} | 25 +- .../atomic/wait_notify/pointers.cc} | 55 ++-- .../atomic_flag/wait_notify}/1.cc | 55 ++-- .../atomic_float/wait_notify.cc} | 26 +- .../atomic_integral/wait_notify.cc} | 55 ++-- .../testsuite/29_atomics/atomic_ref/wait_notify.cc | 90 ++++++ .../iota/constexpr.cc => 30_threads/latch/1.cc} | 16 +- .../3.cc => 30_threads/latch/2.cc} | 8 +- .../stop_token/stop_possible.cc => latch/3.cc} | 47 +++- .../cons/sentinel.cc => 30_threads/semaphore/1.cc} | 15 +- .../3.cc => 30_threads/semaphore/2.cc} | 8 +- .../semaphore/least_max_value_neg.cc} | 16 +- .../1.cc => 30_threads/semaphore/try_acquire.cc} | 39 ++- .../30_threads/semaphore/try_acquire_for.cc | 85 ++++++ .../30_threads/semaphore/try_acquire_posix.cc | 153 +++++++++++ .../30_threads/semaphore/try_acquire_until.cc | 94 +++++++ .../testsuite/util/atomic/wait_notify_util.h | 160 +++++++++++ 28 files changed, 2195 insertions(+), 164 deletions(-) create mode 100644 libstdc++-v3/include/bits/atomic_timed_wait.h create mode 100644 libstdc++-v3/include/bits/atomic_wait.h create mode 100644 libstdc++-v3/include/bits/semaphore_base.h create mode 100644 libstdc++-v3/include/std/latch create mode 100644 libstdc++-v3/include/std/semaphore copy libstdc++-v3/testsuite/{experimental/net/system_context/1.cc => 29_atomics/at [...] copy libstdc++-v3/testsuite/{20_util/to_address/debug.cc => 29_atomics/atomic/wait [...] copy libstdc++-v3/testsuite/{experimental/net/system_context/1.cc => 29_atomics/at [...] copy libstdc++-v3/testsuite/{experimental/net/system_context => 29_atomics/atomic_ [...] copy libstdc++-v3/testsuite/{25_algorithms/lower_bound/debug/partitioned_pred_neg. [...] copy libstdc++-v3/testsuite/{experimental/net/system_context/1.cc => 29_atomics/at [...] create mode 100644 libstdc++-v3/testsuite/29_atomics/atomic_ref/wait_notify.cc copy libstdc++-v3/testsuite/{26_numerics/iota/constexpr.cc => 30_threads/latch/1.c [...] copy libstdc++-v3/testsuite/{20_util/unwrap_reference/3.cc => 30_threads/latch/2.c [...] copy libstdc++-v3/testsuite/30_threads/{stop_token/stop_token/stop_possible.cc => [...] copy libstdc++-v3/testsuite/{24_iterators/istreambuf_iterator/cons/sentinel.cc => [...] copy libstdc++-v3/testsuite/{20_util/unwrap_reference/3.cc => 30_threads/semaphore [...] copy libstdc++-v3/testsuite/{std/ranges/97600.cc => 30_threads/semaphore/least_max [...] copy libstdc++-v3/testsuite/{experimental/net/system_context/1.cc => 30_threads/se [...] create mode 100644 libstdc++-v3/testsuite/30_threads/semaphore/try_acquire_for.cc create mode 100644 libstdc++-v3/testsuite/30_threads/semaphore/try_acquire_posix.cc create mode 100644 libstdc++-v3/testsuite/30_threads/semaphore/try_acquire_until.cc create mode 100644 libstdc++-v3/testsuite/util/atomic/wait_notify_util.h