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annotate src/os_cpu/solaris_sparc/vm/atomic_solaris_sparc.inline.hpp @ 13610:6537a75007e3
consider register priority in rematerialization decision
author | Erik Eckstein <erik.eckstein@oracle.com> |
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date | Mon, 13 Jan 2014 11:28:25 +0100 |
parents | 46c544b8fbfc |
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rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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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 | |
1972 | 25 #ifndef OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_INLINE_HPP |
26 #define OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_INLINE_HPP | |
27 | |
28 #include "runtime/atomic.hpp" | |
29 #include "runtime/os.hpp" | |
30 #include "vm_version_sparc.hpp" | |
31 | |
0 | 32 // Implementation of class atomic |
33 | |
34 inline void Atomic::store (jbyte store_value, jbyte* dest) { *dest = store_value; } | |
35 inline void Atomic::store (jshort store_value, jshort* dest) { *dest = store_value; } | |
36 inline void Atomic::store (jint store_value, jint* dest) { *dest = store_value; } | |
37 inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; } | |
38 inline void Atomic::store_ptr(void* store_value, void* dest) { *(void**)dest = store_value; } | |
39 | |
40 inline void Atomic::store (jbyte store_value, volatile jbyte* dest) { *dest = store_value; } | |
41 inline void Atomic::store (jshort store_value, volatile jshort* dest) { *dest = store_value; } | |
42 inline void Atomic::store (jint store_value, volatile jint* dest) { *dest = store_value; } | |
43 inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; } | |
44 inline void Atomic::store_ptr(void* store_value, volatile void* dest) { *(void* volatile *)dest = store_value; } | |
45 | |
46 inline void Atomic::inc (volatile jint* dest) { (void)add (1, dest); } | |
47 inline void Atomic::inc_ptr(volatile intptr_t* dest) { (void)add_ptr(1, dest); } | |
48 inline void Atomic::inc_ptr(volatile void* dest) { (void)add_ptr(1, dest); } | |
49 | |
50 inline void Atomic::dec (volatile jint* dest) { (void)add (-1, dest); } | |
51 inline void Atomic::dec_ptr(volatile intptr_t* dest) { (void)add_ptr(-1, dest); } | |
52 inline void Atomic::dec_ptr(volatile void* dest) { (void)add_ptr(-1, dest); } | |
53 | |
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54 |
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55 #ifdef _LP64 |
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56 |
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57 inline void Atomic::store(jlong store_value, jlong* dest) { *dest = store_value; } |
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58 inline void Atomic::store(jlong store_value, volatile jlong* dest) { *dest = store_value; } |
894 | 59 inline jlong Atomic::load(volatile jlong* src) { return *src; } |
60 | |
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61 #else |
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62 |
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63 extern "C" void _Atomic_move_long_v9(volatile jlong* src, volatile jlong* dst); |
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64 |
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65 inline void Atomic_move_long(volatile jlong* src, volatile jlong* dst) { |
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66 _Atomic_move_long_v9(src, dst); |
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67 } |
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68 |
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69 inline jlong Atomic::load(volatile jlong* src) { |
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70 volatile jlong dest; |
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71 Atomic_move_long(src, &dest); |
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72 return dest; |
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73 } |
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74 |
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75 inline void Atomic::store(jlong store_value, jlong* dest) { |
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76 Atomic_move_long((volatile jlong*)&store_value, (volatile jlong*)dest); |
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77 } |
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78 |
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79 inline void Atomic::store(jlong store_value, volatile jlong* dest) { |
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80 Atomic_move_long((volatile jlong*)&store_value, dest); |
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81 } |
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82 |
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83 #endif |
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84 |
0 | 85 #ifdef _GNU_SOURCE |
86 | |
87 inline jint Atomic::add (jint add_value, volatile jint* dest) { | |
88 intptr_t rv; | |
89 __asm__ volatile( | |
90 "1: \n\t" | |
91 " ld [%2], %%o2\n\t" | |
92 " add %1, %%o2, %%o3\n\t" | |
93 " cas [%2], %%o2, %%o3\n\t" | |
94 " cmp %%o2, %%o3\n\t" | |
95 " bne 1b\n\t" | |
96 " nop\n\t" | |
97 " add %1, %%o2, %0\n\t" | |
98 : "=r" (rv) | |
99 : "r" (add_value), "r" (dest) | |
100 : "memory", "o2", "o3"); | |
101 return rv; | |
102 } | |
103 | |
104 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { | |
105 intptr_t rv; | |
106 #ifdef _LP64 | |
107 __asm__ volatile( | |
108 "1: \n\t" | |
109 " ldx [%2], %%o2\n\t" | |
110 " add %0, %%o2, %%o3\n\t" | |
111 " casx [%2], %%o2, %%o3\n\t" | |
112 " cmp %%o2, %%o3\n\t" | |
113 " bne %%xcc, 1b\n\t" | |
114 " nop\n\t" | |
115 " add %0, %%o2, %0\n\t" | |
116 : "=r" (rv) | |
117 : "r" (add_value), "r" (dest) | |
118 : "memory", "o2", "o3"); | |
119 #else //_LP64 | |
120 __asm__ volatile( | |
121 "1: \n\t" | |
122 " ld [%2], %%o2\n\t" | |
123 " add %1, %%o2, %%o3\n\t" | |
124 " cas [%2], %%o2, %%o3\n\t" | |
125 " cmp %%o2, %%o3\n\t" | |
126 " bne 1b\n\t" | |
127 " nop\n\t" | |
128 " add %1, %%o2, %0\n\t" | |
129 : "=r" (rv) | |
130 : "r" (add_value), "r" (dest) | |
131 : "memory", "o2", "o3"); | |
132 #endif // _LP64 | |
133 return rv; | |
134 } | |
135 | |
136 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { | |
137 return (void*)add_ptr((intptr_t)add_value, (volatile intptr_t*)dest); | |
138 } | |
139 | |
140 | |
141 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { | |
142 intptr_t rv = exchange_value; | |
143 __asm__ volatile( | |
144 " swap [%2],%1\n\t" | |
145 : "=r" (rv) | |
146 : "0" (exchange_value) /* we use same register as for return value */, "r" (dest) | |
147 : "memory"); | |
148 return rv; | |
149 } | |
150 | |
151 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { | |
152 intptr_t rv = exchange_value; | |
153 #ifdef _LP64 | |
154 __asm__ volatile( | |
155 "1:\n\t" | |
156 " mov %1, %%o3\n\t" | |
157 " ldx [%2], %%o2\n\t" | |
158 " casx [%2], %%o2, %%o3\n\t" | |
159 " cmp %%o2, %%o3\n\t" | |
160 " bne %%xcc, 1b\n\t" | |
161 " nop\n\t" | |
162 " mov %%o2, %0\n\t" | |
163 : "=r" (rv) | |
164 : "r" (exchange_value), "r" (dest) | |
165 : "memory", "o2", "o3"); | |
166 #else //_LP64 | |
167 __asm__ volatile( | |
168 "swap [%2],%1\n\t" | |
169 : "=r" (rv) | |
170 : "0" (exchange_value) /* we use same register as for return value */, "r" (dest) | |
171 : "memory"); | |
172 #endif // _LP64 | |
173 return rv; | |
174 } | |
175 | |
176 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { | |
177 return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest); | |
178 } | |
179 | |
180 | |
181 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { | |
182 jint rv; | |
183 __asm__ volatile( | |
184 " cas [%2], %3, %0" | |
185 : "=r" (rv) | |
186 : "0" (exchange_value), "r" (dest), "r" (compare_value) | |
187 : "memory"); | |
188 return rv; | |
189 } | |
190 | |
191 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { | |
192 #ifdef _LP64 | |
193 jlong rv; | |
194 __asm__ volatile( | |
195 " casx [%2], %3, %0" | |
196 : "=r" (rv) | |
197 : "0" (exchange_value), "r" (dest), "r" (compare_value) | |
198 : "memory"); | |
199 return rv; | |
200 #else //_LP64 | |
201 volatile jlong_accessor evl, cvl, rv; | |
202 evl.long_value = exchange_value; | |
203 cvl.long_value = compare_value; | |
204 | |
205 __asm__ volatile( | |
206 " sllx %2, 32, %2\n\t" | |
207 " srl %3, 0, %3\n\t" | |
208 " or %2, %3, %2\n\t" | |
209 " sllx %5, 32, %5\n\t" | |
210 " srl %6, 0, %6\n\t" | |
211 " or %5, %6, %5\n\t" | |
212 " casx [%4], %5, %2\n\t" | |
213 " srl %2, 0, %1\n\t" | |
214 " srlx %2, 32, %0\n\t" | |
215 : "=r" (rv.words[0]), "=r" (rv.words[1]) | |
216 : "r" (evl.words[0]), "r" (evl.words[1]), "r" (dest), "r" (cvl.words[0]), "r" (cvl.words[1]) | |
217 : "memory"); | |
218 | |
219 return rv.long_value; | |
220 #endif //_LP64 | |
221 } | |
222 | |
223 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { | |
224 intptr_t rv; | |
225 #ifdef _LP64 | |
226 __asm__ volatile( | |
227 " casx [%2], %3, %0" | |
228 : "=r" (rv) | |
229 : "0" (exchange_value), "r" (dest), "r" (compare_value) | |
230 : "memory"); | |
231 #else //_LP64 | |
232 __asm__ volatile( | |
233 " cas [%2], %3, %0" | |
234 : "=r" (rv) | |
235 : "0" (exchange_value), "r" (dest), "r" (compare_value) | |
236 : "memory"); | |
237 #endif // _LP64 | |
238 return rv; | |
239 } | |
240 | |
241 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { | |
242 return (void*)cmpxchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest, (intptr_t)compare_value); | |
243 } | |
244 | |
245 #else // _GNU_SOURCE | |
246 | |
247 #if defined(COMPILER2) || defined(_LP64) | |
248 | |
249 // This is the interface to the atomic instructions in solaris_sparc.il. | |
250 // It's very messy because we need to support v8 and these instructions | |
251 // are illegal there. When sparc v8 is dropped, we can drop out lots of | |
252 // this code. Also compiler2 does not support v8 so the conditional code | |
253 // omits the instruction set check. | |
254 | |
255 extern "C" jint _Atomic_swap32(jint exchange_value, volatile jint* dest); | |
256 extern "C" intptr_t _Atomic_swap64(intptr_t exchange_value, volatile intptr_t* dest); | |
257 | |
258 extern "C" jint _Atomic_cas32(jint exchange_value, volatile jint* dest, jint compare_value); | |
259 extern "C" intptr_t _Atomic_cas64(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value); | |
260 extern "C" jlong _Atomic_casl (jlong exchange_value, volatile jlong* dest, jlong compare_value); | |
261 | |
262 extern "C" jint _Atomic_add32(jint inc, volatile jint* dest); | |
263 extern "C" intptr_t _Atomic_add64(intptr_t add_value, volatile intptr_t* dest); | |
264 | |
265 | |
266 inline jint Atomic::add (jint add_value, volatile jint* dest) { | |
267 return _Atomic_add32(add_value, dest); | |
268 } | |
269 | |
270 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { | |
271 #ifdef _LP64 | |
272 return _Atomic_add64(add_value, dest); | |
273 #else //_LP64 | |
274 return _Atomic_add32(add_value, dest); | |
275 #endif // _LP64 | |
276 } | |
277 | |
278 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { | |
279 return (void*)add_ptr((intptr_t)add_value, (volatile intptr_t*)dest); | |
280 } | |
281 | |
282 | |
283 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { | |
284 return _Atomic_swap32(exchange_value, dest); | |
285 } | |
286 | |
287 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { | |
288 #ifdef _LP64 | |
289 return _Atomic_swap64(exchange_value, dest); | |
290 #else // _LP64 | |
291 return _Atomic_swap32(exchange_value, dest); | |
292 #endif // _LP64 | |
293 } | |
294 | |
295 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { | |
296 return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest); | |
297 } | |
298 | |
299 | |
300 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { | |
301 return _Atomic_cas32(exchange_value, dest, compare_value); | |
302 } | |
303 | |
304 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { | |
305 #ifdef _LP64 | |
306 // Return 64 bit value in %o0 | |
307 return _Atomic_cas64((intptr_t)exchange_value, (intptr_t *)dest, (intptr_t)compare_value); | |
308 #else // _LP64 | |
309 // Return 64 bit value in %o0,%o1 by hand | |
310 return _Atomic_casl(exchange_value, dest, compare_value); | |
311 #endif // _LP64 | |
312 } | |
313 | |
314 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { | |
315 #ifdef _LP64 | |
316 return _Atomic_cas64(exchange_value, dest, compare_value); | |
317 #else // _LP64 | |
318 return _Atomic_cas32(exchange_value, dest, compare_value); | |
319 #endif // _LP64 | |
320 } | |
321 | |
322 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { | |
323 return (void*)cmpxchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest, (intptr_t)compare_value); | |
324 } | |
325 | |
326 | |
327 #else // _LP64 || COMPILER2 | |
328 | |
329 | |
330 // 32-bit compiler1 only | |
331 | |
332 inline jint Atomic::add (jint add_value, volatile jint* dest) { | |
333 return (*os::atomic_add_func)(add_value, dest); | |
334 } | |
335 | |
336 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) { | |
337 return (intptr_t)add((jint)add_value, (volatile jint*)dest); | |
338 } | |
339 | |
340 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) { | |
341 return (void*)add((jint)add_value, (volatile jint*)dest); | |
342 } | |
343 | |
344 | |
345 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) { | |
346 return (*os::atomic_xchg_func)(exchange_value, dest); | |
347 } | |
348 | |
349 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) { | |
350 return (intptr_t)xchg((jint)exchange_value, (volatile jint*)dest); | |
351 } | |
352 | |
353 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { | |
354 return (void*)xchg((jint)exchange_value, (volatile jint*)dest); | |
355 } | |
356 | |
357 | |
358 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) { | |
359 return (*os::atomic_cmpxchg_func)(exchange_value, dest, compare_value); | |
360 } | |
361 | |
362 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) { | |
363 return (*os::atomic_cmpxchg_long_func)(exchange_value, dest, compare_value); | |
364 } | |
365 | |
366 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) { | |
367 return (intptr_t)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value); | |
368 } | |
369 | |
370 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) { | |
371 return (void*)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value); | |
372 } | |
373 | |
374 #endif // _LP64 || COMPILER2 | |
375 | |
376 #endif // _GNU_SOURCE | |
1972 | 377 |
378 #endif // OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_INLINE_HPP |