diff options
Diffstat (limited to 'include/atomic')
| -rw-r--r-- | include/atomic | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/atomic b/include/atomic index 83889fb473e8..a17bdce1cc6f 100644 --- a/include/atomic +++ b/include/atomic @@ -560,6 +560,22 @@ void atomic_signal_fence(memory_order m) noexcept; # define __cpp_lib_atomic_is_always_lock_free 201603L #endif +#define _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) \ + _LIBCPP_DIAGNOSE_WARNING(__m == memory_order_consume || \ + __m == memory_order_acquire || \ + __m == memory_order_acq_rel, \ + "memory order argument to atomic operation is invalid") + +#define _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) \ + _LIBCPP_DIAGNOSE_WARNING(__m == memory_order_release || \ + __m == memory_order_acq_rel, \ + "memory order argument to atomic operation is invalid") + +#define _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__m, __f) \ + _LIBCPP_DIAGNOSE_WARNING(__f == memory_order_release || \ + __f == memory_order_acq_rel, \ + "memory order argument to atomic operation is invalid") + _LIBCPP_BEGIN_NAMESPACE_STD typedef enum memory_order @@ -881,15 +897,19 @@ struct __atomic_base // false {return static_cast<__atomic_base const volatile*>(this)->is_lock_free();} _LIBCPP_INLINE_VISIBILITY void store(_Tp __d, memory_order __m = memory_order_seq_cst) volatile _NOEXCEPT + _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) {__c11_atomic_store(&__a_, __d, __m);} _LIBCPP_INLINE_VISIBILITY void store(_Tp __d, memory_order __m = memory_order_seq_cst) _NOEXCEPT + _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) {__c11_atomic_store(&__a_, __d, __m);} _LIBCPP_INLINE_VISIBILITY _Tp load(memory_order __m = memory_order_seq_cst) const volatile _NOEXCEPT + _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) {return __c11_atomic_load(&__a_, __m);} _LIBCPP_INLINE_VISIBILITY _Tp load(memory_order __m = memory_order_seq_cst) const _NOEXCEPT + _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) {return __c11_atomic_load(&__a_, __m);} _LIBCPP_INLINE_VISIBILITY operator _Tp() const volatile _NOEXCEPT {return load();} @@ -904,18 +924,22 @@ struct __atomic_base // false _LIBCPP_INLINE_VISIBILITY bool compare_exchange_weak(_Tp& __e, _Tp __d, memory_order __s, memory_order __f) volatile _NOEXCEPT + _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) {return __c11_atomic_compare_exchange_weak(&__a_, &__e, __d, __s, __f);} _LIBCPP_INLINE_VISIBILITY bool compare_exchange_weak(_Tp& __e, _Tp __d, memory_order __s, memory_order __f) _NOEXCEPT + _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) {return __c11_atomic_compare_exchange_weak(&__a_, &__e, __d, __s, __f);} _LIBCPP_INLINE_VISIBILITY bool compare_exchange_strong(_Tp& __e, _Tp __d, memory_order __s, memory_order __f) volatile _NOEXCEPT + _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) {return __c11_atomic_compare_exchange_strong(&__a_, &__e, __d, __s, __f);} _LIBCPP_INLINE_VISIBILITY bool compare_exchange_strong(_Tp& __e, _Tp __d, memory_order __s, memory_order __f) _NOEXCEPT + _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) {return __c11_atomic_compare_exchange_strong(&__a_, &__e, __d, __s, __f);} _LIBCPP_INLINE_VISIBILITY bool compare_exchange_weak(_Tp& __e, _Tp __d, @@ -1181,6 +1205,7 @@ template <class _Tp> inline _LIBCPP_INLINE_VISIBILITY void atomic_store_explicit(volatile atomic<_Tp>* __o, _Tp __d, memory_order __m) _NOEXCEPT + _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) { __o->store(__d, __m); } @@ -1189,6 +1214,7 @@ template <class _Tp> inline _LIBCPP_INLINE_VISIBILITY void atomic_store_explicit(atomic<_Tp>* __o, _Tp __d, memory_order __m) _NOEXCEPT + _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) { __o->store(__d, __m); } @@ -1217,6 +1243,7 @@ template <class _Tp> inline _LIBCPP_INLINE_VISIBILITY _Tp atomic_load_explicit(const volatile atomic<_Tp>* __o, memory_order __m) _NOEXCEPT + _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) { return __o->load(__m); } @@ -1225,6 +1252,7 @@ template <class _Tp> inline _LIBCPP_INLINE_VISIBILITY _Tp atomic_load_explicit(const atomic<_Tp>* __o, memory_order __m) _NOEXCEPT + _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) { return __o->load(__m); } @@ -1309,6 +1337,7 @@ bool atomic_compare_exchange_weak_explicit(volatile atomic<_Tp>* __o, _Tp* __e, _Tp __d, memory_order __s, memory_order __f) _NOEXCEPT + _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) { return __o->compare_exchange_weak(*__e, __d, __s, __f); } @@ -1318,6 +1347,7 @@ inline _LIBCPP_INLINE_VISIBILITY bool atomic_compare_exchange_weak_explicit(atomic<_Tp>* __o, _Tp* __e, _Tp __d, memory_order __s, memory_order __f) _NOEXCEPT + _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) { return __o->compare_exchange_weak(*__e, __d, __s, __f); } @@ -1330,6 +1360,7 @@ bool atomic_compare_exchange_strong_explicit(volatile atomic<_Tp>* __o, _Tp* __e, _Tp __d, memory_order __s, memory_order __f) _NOEXCEPT + _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) { return __o->compare_exchange_strong(*__e, __d, __s, __f); } @@ -1340,6 +1371,7 @@ bool atomic_compare_exchange_strong_explicit(atomic<_Tp>* __o, _Tp* __e, _Tp __d, memory_order __s, memory_order __f) _NOEXCEPT + _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__s, __f) { return __o->compare_exchange_strong(*__e, __d, __s, __f); } |