40 // necessary (and expensive). We should generate separate cases if
41 // this becomes a performance problem.
42
43 #pragma warning(disable: 4035) // Disables warnings reporting missing return statement
44
45 inline void Atomic::store (jbyte store_value, jbyte* dest) { *dest = store_value; }
46 inline void Atomic::store (jshort store_value, jshort* dest) { *dest = store_value; }
47 inline void Atomic::store (jint store_value, jint* dest) { *dest = store_value; }
48
49 inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; }
50 inline void Atomic::store_ptr(void* store_value, void* dest) { *(void**)dest = store_value; }
51
52 inline void Atomic::store (jbyte store_value, volatile jbyte* dest) { *dest = store_value; }
53 inline void Atomic::store (jshort store_value, volatile jshort* dest) { *dest = store_value; }
54 inline void Atomic::store (jint store_value, volatile jint* dest) { *dest = store_value; }
55
56
57 inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; }
58 inline void Atomic::store_ptr(void* store_value, volatile void* dest) { *(void* volatile *)dest = store_value; }
59
60 #ifdef AMD64
61 inline void Atomic::store (jlong store_value, jlong* dest) { *dest = store_value; }
62 inline void Atomic::store (jlong store_value, volatile jlong* dest) { *dest = store_value; }
63
64 inline jint Atomic::add (jint add_value, volatile jint* dest) {
65 return (jint)(*os::atomic_add_func)(add_value, dest);
66 }
67
68 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) {
69 return (intptr_t)(*os::atomic_add_ptr_func)(add_value, dest);
70 }
71
72 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) {
73 return (void*)(*os::atomic_add_ptr_func)(add_value, (volatile intptr_t*)dest);
74 }
75
76 inline void Atomic::inc (volatile jint* dest) {
77 (void)add (1, dest);
78 }
79
80 inline void Atomic::inc_ptr(volatile intptr_t* dest) {
81 (void)add_ptr(1, dest);
82 }
83
84 inline void Atomic::inc_ptr(volatile void* dest) {
85 (void)add_ptr(1, dest);
86 }
87
88 inline void Atomic::dec (volatile jint* dest) {
89 (void)add (-1, dest);
90 }
91
92 inline void Atomic::dec_ptr(volatile intptr_t* dest) {
93 (void)add_ptr(-1, dest);
113 template<> \
114 template<typename T> \
115 inline T Atomic::PlatformCmpxchg<ByteSize>::operator()(T exchange_value, \
116 T volatile* dest, \
117 T compare_value, \
118 cmpxchg_memory_order order) const { \
119 STATIC_ASSERT(ByteSize == sizeof(T)); \
120 return cmpxchg_using_helper<StubType>(StubName, exchange_value, dest, compare_value); \
121 }
122
123 DEFINE_STUB_CMPXCHG(1, jbyte, os::atomic_cmpxchg_byte_func)
124 DEFINE_STUB_CMPXCHG(4, jint, os::atomic_cmpxchg_func)
125 DEFINE_STUB_CMPXCHG(8, jlong, os::atomic_cmpxchg_long_func)
126
127 #undef DEFINE_STUB_CMPXCHG
128
129 inline jlong Atomic::load(const volatile jlong* src) { return *src; }
130
131 #else // !AMD64
132
133 inline jint Atomic::add (jint add_value, volatile jint* dest) {
134 __asm {
135 mov edx, dest;
136 mov eax, add_value;
137 mov ecx, eax;
138 lock xadd dword ptr [edx], eax;
139 add eax, ecx;
140 }
141 }
142
143 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) {
144 return (intptr_t)add((jint)add_value, (volatile jint*)dest);
145 }
146
147 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) {
148 return (void*)add((jint)add_value, (volatile jint*)dest);
149 }
150
151 inline void Atomic::inc (volatile jint* dest) {
152 // alternative for InterlockedIncrement
153 __asm {
154 mov edx, dest;
155 lock add dword ptr [edx], 1;
156 }
157 }
158
159 inline void Atomic::inc_ptr(volatile intptr_t* dest) {
160 inc((volatile jint*)dest);
161 }
162
163 inline void Atomic::inc_ptr(volatile void* dest) {
164 inc((volatile jint*)dest);
165 }
166
167 inline void Atomic::dec (volatile jint* dest) {
168 // alternative for InterlockedDecrement
|
40 // necessary (and expensive). We should generate separate cases if
41 // this becomes a performance problem.
42
43 #pragma warning(disable: 4035) // Disables warnings reporting missing return statement
44
45 inline void Atomic::store (jbyte store_value, jbyte* dest) { *dest = store_value; }
46 inline void Atomic::store (jshort store_value, jshort* dest) { *dest = store_value; }
47 inline void Atomic::store (jint store_value, jint* dest) { *dest = store_value; }
48
49 inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; }
50 inline void Atomic::store_ptr(void* store_value, void* dest) { *(void**)dest = store_value; }
51
52 inline void Atomic::store (jbyte store_value, volatile jbyte* dest) { *dest = store_value; }
53 inline void Atomic::store (jshort store_value, volatile jshort* dest) { *dest = store_value; }
54 inline void Atomic::store (jint store_value, volatile jint* dest) { *dest = store_value; }
55
56
57 inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; }
58 inline void Atomic::store_ptr(void* store_value, volatile void* dest) { *(void* volatile *)dest = store_value; }
59
60 template<size_t byte_size>
61 struct Atomic::PlatformAdd
62 : Atomic::AddAndFetch<Atomic::PlatformAdd<byte_size> >
63 {
64 template<typename I, typename D>
65 D add_and_fetch(I add_value, D volatile* dest) const;
66 };
67
68 template<>
69 struct Atomic::PlatformAdd<2>: Atomic::AddShortUsingInt {};
70
71 #ifdef AMD64
72 inline void Atomic::store (jlong store_value, jlong* dest) { *dest = store_value; }
73 inline void Atomic::store (jlong store_value, volatile jlong* dest) { *dest = store_value; }
74
75 template<>
76 template<typename I, typename D>
77 inline D Atomic::PlatformAdd<4>::add_and_fetch(I add_value, D volatile* dest) const {
78 return add_using_helper<jint>(os::atomic_add_func, add_value, dest);
79 }
80
81 template<>
82 template<typename I, typename D>
83 inline D Atomic::PlatformAdd<8>::add_and_fetch(I add_value, D volatile* dest) const {
84 return add_using_helper<intptr_t>(os::atomic_add_ptr_func, add_value, dest);
85 }
86
87 inline void Atomic::inc (volatile jint* dest) {
88 (void)add (1, dest);
89 }
90
91 inline void Atomic::inc_ptr(volatile intptr_t* dest) {
92 (void)add_ptr(1, dest);
93 }
94
95 inline void Atomic::inc_ptr(volatile void* dest) {
96 (void)add_ptr(1, dest);
97 }
98
99 inline void Atomic::dec (volatile jint* dest) {
100 (void)add (-1, dest);
101 }
102
103 inline void Atomic::dec_ptr(volatile intptr_t* dest) {
104 (void)add_ptr(-1, dest);
124 template<> \
125 template<typename T> \
126 inline T Atomic::PlatformCmpxchg<ByteSize>::operator()(T exchange_value, \
127 T volatile* dest, \
128 T compare_value, \
129 cmpxchg_memory_order order) const { \
130 STATIC_ASSERT(ByteSize == sizeof(T)); \
131 return cmpxchg_using_helper<StubType>(StubName, exchange_value, dest, compare_value); \
132 }
133
134 DEFINE_STUB_CMPXCHG(1, jbyte, os::atomic_cmpxchg_byte_func)
135 DEFINE_STUB_CMPXCHG(4, jint, os::atomic_cmpxchg_func)
136 DEFINE_STUB_CMPXCHG(8, jlong, os::atomic_cmpxchg_long_func)
137
138 #undef DEFINE_STUB_CMPXCHG
139
140 inline jlong Atomic::load(const volatile jlong* src) { return *src; }
141
142 #else // !AMD64
143
144 template<>
145 template<typename I, typename D>
146 inline D Atomic::PlatformAdd<4>::add_and_fetch(I add_value, D volatile* dest) const {
147 STATIC_ASSERT(4 == sizeof(I));
148 STATIC_ASSERT(4 == sizeof(D));
149 __asm {
150 mov edx, dest;
151 mov eax, add_value;
152 mov ecx, eax;
153 lock xadd dword ptr [edx], eax;
154 add eax, ecx;
155 }
156 }
157
158 inline void Atomic::inc (volatile jint* dest) {
159 // alternative for InterlockedIncrement
160 __asm {
161 mov edx, dest;
162 lock add dword ptr [edx], 1;
163 }
164 }
165
166 inline void Atomic::inc_ptr(volatile intptr_t* dest) {
167 inc((volatile jint*)dest);
168 }
169
170 inline void Atomic::inc_ptr(volatile void* dest) {
171 inc((volatile jint*)dest);
172 }
173
174 inline void Atomic::dec (volatile jint* dest) {
175 // alternative for InterlockedDecrement
|