69 template<size_t byte_size>
70 struct Atomic::PlatformAdd
71 : Atomic::AddAndFetch<Atomic::PlatformAdd<byte_size> >
72 {
73 template<typename D, typename I>
74 D add_and_fetch(D volatile* dest, I add_value, atomic_memory_order order) const;
75 };
76
77 template<>
78 template<typename D, typename I>
79 inline D Atomic::PlatformAdd<4>::add_and_fetch(D volatile* dest, I add_value,
80 atomic_memory_order order) const {
81 STATIC_ASSERT(4 == sizeof(I));
82 STATIC_ASSERT(4 == sizeof(D));
83 return add_using_helper<int32_t>(os::atomic_add_func, dest, add_value);
84 }
85
86
87 template<>
88 template<typename T>
89 inline T Atomic::PlatformXchg<4>::operator()(T exchange_value,
90 T volatile* dest,
91 atomic_memory_order order) const {
92 STATIC_ASSERT(4 == sizeof(T));
93 return xchg_using_helper<int32_t>(os::atomic_xchg_func, exchange_value, dest);
94 }
95
96
97 // The memory_order parameter is ignored - we always provide the strongest/most-conservative ordering
98
99 // No direct support for cmpxchg of bytes; emulate using int.
100 template<>
101 struct Atomic::PlatformCmpxchg<1> : Atomic::CmpxchgByteUsingInt {};
102
103
104 inline int32_t reorder_cmpxchg_func(int32_t exchange_value,
105 int32_t volatile* dest,
106 int32_t compare_value) {
107 // Warning: Arguments are swapped to avoid moving them for kernel call
108 return (*os::atomic_cmpxchg_func)(compare_value, exchange_value, dest);
109 }
110
111 inline int64_t reorder_cmpxchg_long_func(int64_t exchange_value,
112 int64_t volatile* dest,
113 int64_t compare_value) {
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69 template<size_t byte_size>
70 struct Atomic::PlatformAdd
71 : Atomic::AddAndFetch<Atomic::PlatformAdd<byte_size> >
72 {
73 template<typename D, typename I>
74 D add_and_fetch(D volatile* dest, I add_value, atomic_memory_order order) const;
75 };
76
77 template<>
78 template<typename D, typename I>
79 inline D Atomic::PlatformAdd<4>::add_and_fetch(D volatile* dest, I add_value,
80 atomic_memory_order order) const {
81 STATIC_ASSERT(4 == sizeof(I));
82 STATIC_ASSERT(4 == sizeof(D));
83 return add_using_helper<int32_t>(os::atomic_add_func, dest, add_value);
84 }
85
86
87 template<>
88 template<typename T>
89 inline T Atomic::PlatformXchg<4>::operator()(T volatile* dest,
90 T exchange_value,
91 atomic_memory_order order) const {
92 STATIC_ASSERT(4 == sizeof(T));
93 return xchg_using_helper<int32_t>(os::atomic_xchg_func, dest, exchange_value);
94 }
95
96
97 // The memory_order parameter is ignored - we always provide the strongest/most-conservative ordering
98
99 // No direct support for cmpxchg of bytes; emulate using int.
100 template<>
101 struct Atomic::PlatformCmpxchg<1> : Atomic::CmpxchgByteUsingInt {};
102
103
104 inline int32_t reorder_cmpxchg_func(int32_t exchange_value,
105 int32_t volatile* dest,
106 int32_t compare_value) {
107 // Warning: Arguments are swapped to avoid moving them for kernel call
108 return (*os::atomic_cmpxchg_func)(compare_value, exchange_value, dest);
109 }
110
111 inline int64_t reorder_cmpxchg_long_func(int64_t exchange_value,
112 int64_t volatile* dest,
113 int64_t compare_value) {
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