Mercurial > hg > graal-compiler
annotate src/os_cpu/windows_x86/vm/atomic_windows_x86.inline.hpp @ 1623:fcbb92a1ab3b
Merge
author | jrose |
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date | Tue, 29 Jun 2010 16:09:57 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
rev | line source |
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0 | 1 /* |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 // The following alternative implementations are needed because | |
26 // Windows 95 doesn't support (some of) the corresponding Windows NT | |
27 // calls. Furthermore, these versions allow inlining in the caller. | |
28 // (More precisely: The documentation for InterlockedExchange says | |
29 // it is supported for Windows 95. However, when single-stepping | |
30 // through the assembly code we cannot step into the routine and | |
31 // when looking at the routine address we see only garbage code. | |
32 // Better safe then sorry!). Was bug 7/31/98 (gri). | |
33 // | |
34 // Performance note: On uniprocessors, the 'lock' prefixes are not | |
35 // necessary (and expensive). We should generate separate cases if | |
36 // this becomes a performance problem. | |
37 | |
38 #pragma warning(disable: 4035) // Disables warnings reporting missing return statement | |
39 | |
40 inline void Atomic::store (jbyte store_value, jbyte* dest) { *dest = store_value; } | |
41 inline void Atomic::store (jshort store_value, jshort* dest) { *dest = store_value; } | |
42 inline void Atomic::store (jint store_value, jint* dest) { *dest = store_value; } | |
43 | |
44 inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; } | |
45 inline void Atomic::store_ptr(void* store_value, void* dest) { *(void**)dest = store_value; } | |
46 | |
47 inline void Atomic::store (jbyte store_value, volatile jbyte* dest) { *dest = store_value; } | |
48 inline void Atomic::store (jshort store_value, volatile jshort* dest) { *dest = store_value; } | |
49 inline void Atomic::store (jint store_value, volatile jint* dest) { *dest = store_value; } | |
50 | |
51 | |
52 inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; } | |
53 inline void Atomic::store_ptr(void* store_value, volatile void* dest) { *(void* volatile *)dest = store_value; } | |
54 | |
55 // Adding a lock prefix to an instruction on MP machine | |
56 // VC++ doesn't like the lock prefix to be on a single line | |
57 // so we can't insert a label after the lock prefix. | |
58 // By emitting a lock prefix, we can define a label after it. | |
59 #define LOCK_IF_MP(mp) __asm cmp mp, 0 \ | |
60 __asm je L0 \ | |
61 __asm _emit 0xF0 \ | |
62 __asm L0: | |
63 | |
64 #ifdef AMD64 | |
65 inline void Atomic::store (jlong store_value, jlong* dest) { *dest = store_value; } | |
66 inline void Atomic::store (jlong store_value, volatile jlong* dest) { *dest = store_value; } | |
67 | |
68 inline jint Atomic::add (jint add_value, volatile jint* dest) { | |
69 return (jint)(*os::atomic_add_func)(add_value, dest); | |
70 } | |
71 | |
72 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { | |
73 return (intptr_t)(*os::atomic_add_ptr_func)(add_value, dest); | |
74 } | |
75 | |
76 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { | |
77 return (void*)(*os::atomic_add_ptr_func)(add_value, (volatile intptr_t*)dest); | |
78 } | |
79 | |
80 inline void Atomic::inc (volatile jint* dest) { | |
81 (void)add (1, dest); | |
82 } | |
83 | |
84 inline void Atomic::inc_ptr(volatile intptr_t* dest) { | |
85 (void)add_ptr(1, dest); | |
86 } | |
87 | |
88 inline void Atomic::inc_ptr(volatile void* dest) { | |
89 (void)add_ptr(1, dest); | |
90 } | |
91 | |
92 inline void Atomic::dec (volatile jint* dest) { | |
93 (void)add (-1, dest); | |
94 } | |
95 | |
96 inline void Atomic::dec_ptr(volatile intptr_t* dest) { | |
97 (void)add_ptr(-1, dest); | |
98 } | |
99 | |
100 inline void Atomic::dec_ptr(volatile void* dest) { | |
101 (void)add_ptr(-1, dest); | |
102 } | |
103 | |
104 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { | |
105 return (jint)(*os::atomic_xchg_func)(exchange_value, dest); | |
106 } | |
107 | |
108 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { | |
109 return (intptr_t)(os::atomic_xchg_ptr_func)(exchange_value, dest); | |
110 } | |
111 | |
112 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { | |
113 return (void *)(os::atomic_xchg_ptr_func)((intptr_t)exchange_value, (volatile intptr_t*)dest); | |
114 } | |
115 | |
116 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { | |
117 return (*os::atomic_cmpxchg_func)(exchange_value, dest, compare_value); | |
118 } | |
119 | |
120 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { | |
121 return (*os::atomic_cmpxchg_long_func)(exchange_value, dest, compare_value); | |
122 } | |
123 | |
124 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { | |
125 return (intptr_t)cmpxchg((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value); | |
126 } | |
127 | |
128 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { | |
129 return (void*)cmpxchg((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value); | |
130 } | |
131 | |
132 #else // !AMD64 | |
133 | |
134 //inline void Atomic::store (jlong store_value, jlong* dest) { *dest = store_value; } | |
135 //inline void Atomic::store (jlong store_value, volatile jlong* dest) { *dest = store_value; } | |
136 inline jint Atomic::add (jint add_value, volatile jint* dest) { | |
137 int mp = os::is_MP(); | |
138 __asm { | |
139 mov edx, dest; | |
140 mov eax, add_value; | |
141 mov ecx, eax; | |
142 LOCK_IF_MP(mp) | |
143 xadd dword ptr [edx], eax; | |
144 add eax, ecx; | |
145 } | |
146 } | |
147 | |
148 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { | |
149 return (intptr_t)add((jint)add_value, (volatile jint*)dest); | |
150 } | |
151 | |
152 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { | |
153 return (void*)add((jint)add_value, (volatile jint*)dest); | |
154 } | |
155 | |
156 inline void Atomic::inc (volatile jint* dest) { | |
157 // alternative for InterlockedIncrement | |
158 int mp = os::is_MP(); | |
159 __asm { | |
160 mov edx, dest; | |
161 LOCK_IF_MP(mp) | |
162 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 | |
176 int mp = os::is_MP(); | |
177 __asm { | |
178 mov edx, dest; | |
179 LOCK_IF_MP(mp) | |
180 sub dword ptr [edx], 1; | |
181 } | |
182 } | |
183 | |
184 inline void Atomic::dec_ptr(volatile intptr_t* dest) { | |
185 dec((volatile jint*)dest); | |
186 } | |
187 | |
188 inline void Atomic::dec_ptr(volatile void* dest) { | |
189 dec((volatile jint*)dest); | |
190 } | |
191 | |
192 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { | |
193 // alternative for InterlockedExchange | |
194 __asm { | |
195 mov eax, exchange_value; | |
196 mov ecx, dest; | |
197 xchg eax, dword ptr [ecx]; | |
198 } | |
199 } | |
200 | |
201 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { | |
202 return (intptr_t)xchg((jint)exchange_value, (volatile jint*)dest); | |
203 } | |
204 | |
205 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { | |
206 return (void*)xchg((jint)exchange_value, (volatile jint*)dest); | |
207 } | |
208 | |
209 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { | |
210 // alternative for InterlockedCompareExchange | |
211 int mp = os::is_MP(); | |
212 __asm { | |
213 mov edx, dest | |
214 mov ecx, exchange_value | |
215 mov eax, compare_value | |
216 LOCK_IF_MP(mp) | |
217 cmpxchg dword ptr [edx], ecx | |
218 } | |
219 } | |
220 | |
221 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { | |
222 int mp = os::is_MP(); | |
223 jint ex_lo = (jint)exchange_value; | |
224 jint ex_hi = *( ((jint*)&exchange_value) + 1 ); | |
225 jint cmp_lo = (jint)compare_value; | |
226 jint cmp_hi = *( ((jint*)&compare_value) + 1 ); | |
227 __asm { | |
228 push ebx | |
229 push edi | |
230 mov eax, cmp_lo | |
231 mov edx, cmp_hi | |
232 mov edi, dest | |
233 mov ebx, ex_lo | |
234 mov ecx, ex_hi | |
235 LOCK_IF_MP(mp) | |
236 cmpxchg8b qword ptr [edi] | |
237 pop edi | |
238 pop ebx | |
239 } | |
240 } | |
241 | |
242 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { | |
243 return (intptr_t)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value); | |
244 } | |
245 | |
246 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { | |
247 return (void*)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value); | |
248 } | |
249 #endif // AMD64 | |
250 | |
251 #pragma warning(default: 4035) // Enables warnings reporting missing return statement |