Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/os_cpu/solaris_sparc/vm/solaris_sparc.il
src/os_cpu/solaris_sparc/vm/solaris_sparc.il
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| 1 // | |
| 2 // Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved. | |
| 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 // | |
| 19 // Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 // or visit www.oracle.com if you need additional information or have any | |
| 21 // questions. | |
| 22 // | |
| 23 // | |
| 24 | |
| 25 // Get the raw thread ID from %g7 | |
| 26 | |
| 27 .inline _raw_thread_id, 0 | |
| 28 .register %g7,#scratch | |
| 29 .volatile | |
| 30 mov %g7, %o0 | |
| 31 .nonvolatile | |
| 32 .end | |
| 33 | |
| 34 | |
| 35 // Clear SPARC fprs.FEF DU and DL bits -- | |
| 36 // allows the kernel to avoid saving FPU state at context-switch time. | |
| 37 // Use for state-transition points (into _thread_blocked) or when | |
| 38 // parking. | |
| 39 | |
| 40 .inline _mark_fpu_nosave, 0 | |
| 41 .volatile | |
| 42 wr %g0, 0, %fprs | |
| 43 .nonvolatile | |
| 44 .end | |
| 45 | |
| 46 // Support for jint Atomic::xchg(jint exchange_value, volatile jint* dest). | |
| 47 // | |
| 48 // Arguments: | |
| 49 // exchange_value: O0 | |
| 50 // dest: O1 | |
| 51 // | |
| 52 // Results: | |
| 53 // O0: the value previously stored in dest | |
| 54 | |
| 55 .inline _Atomic_swap32, 2 | |
| 56 .volatile | |
| 57 swap [%o1],%o0 | |
| 58 .nonvolatile | |
| 59 .end | |
| 60 | |
| 61 | |
| 62 // Support for intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t * dest). | |
| 63 // | |
| 64 // 64-bit | |
| 65 // | |
| 66 // Arguments: | |
| 67 // exchange_value: O0 | |
| 68 // dest: O1 | |
| 69 // | |
| 70 // Results: | |
| 71 // O0: the value previously stored in dest | |
| 72 | |
| 73 .inline _Atomic_swap64, 2 | |
| 74 .volatile | |
| 75 1: | |
| 76 mov %o0, %o3 | |
| 77 ldx [%o1], %o2 | |
| 78 casx [%o1], %o2, %o3 | |
| 79 cmp %o2, %o3 | |
| 80 bne %xcc, 1b | |
| 81 nop | |
| 82 mov %o2, %o0 | |
| 83 .nonvolatile | |
| 84 .end | |
| 85 | |
| 86 | |
| 87 // Support for jint Atomic::cmpxchg(jint exchange_value, | |
| 88 // volatile jint* dest, | |
| 89 // jint compare_value) | |
| 90 // | |
| 91 // Arguments: | |
| 92 // exchange_value: O0 | |
| 93 // dest: O1 | |
| 94 // compare_value: O2 | |
| 95 // | |
| 96 // Results: | |
| 97 // O0: the value previously stored in dest | |
| 98 | |
| 99 .inline _Atomic_cas32, 3 | |
| 100 .volatile | |
| 101 cas [%o1], %o2, %o0 | |
| 102 .nonvolatile | |
| 103 .end | |
| 104 | |
| 105 | |
| 106 // Support for intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, | |
| 107 // volatile intptr_t* dest, | |
| 108 // intptr_t compare_value) | |
| 109 // | |
| 110 // 64-bit | |
| 111 // | |
| 112 // Arguments: | |
| 113 // exchange_value: O0 | |
| 114 // dest: O1 | |
| 115 // compare_value: O2 | |
| 116 // | |
| 117 // Results: | |
| 118 // O0: the value previously stored in dest | |
| 119 | |
| 120 .inline _Atomic_cas64, 3 | |
| 121 .volatile | |
| 122 casx [%o1], %o2, %o0 | |
| 123 .nonvolatile | |
| 124 .end | |
| 125 | |
| 126 | |
| 127 // Support for jlong Atomic::cmpxchg(jlong exchange_value, | |
| 128 // volatile jlong* dest, | |
| 129 // jlong compare_value) | |
| 130 // | |
| 131 // 32-bit calling conventions | |
| 132 // | |
| 133 // Arguments: | |
| 134 // exchange_value: O1:O0 | |
| 135 // dest: O2 | |
| 136 // compare_value: O4:O3 | |
| 137 // | |
| 138 // Results: | |
| 139 // O1:O0: the value previously stored in dest | |
| 140 | |
| 141 .inline _Atomic_casl, 3 | |
| 142 .volatile | |
| 143 sllx %o0, 32, %o0 | |
| 144 srl %o1, 0, %o1 | |
| 145 or %o0,%o1,%o0 | |
| 146 sllx %o3, 32, %o3 | |
| 147 srl %o4, 0, %o4 | |
| 148 or %o3,%o4,%o3 | |
| 149 casx [%o2], %o3, %o0 | |
| 150 srl %o0, 0, %o1 | |
| 151 srlx %o0, 32, %o0 | |
| 152 .nonvolatile | |
| 153 .end | |
| 154 | |
| 155 // Support for jlong Atomic::load and Atomic::store on v9. | |
| 156 // | |
| 157 // void _Atomic_move_long_v9(volatile jlong* src, volatile jlong* dst) | |
| 158 // | |
| 159 // Arguments: | |
| 160 // src: O0 | |
| 161 // dest: O1 | |
| 162 // | |
| 163 // Overwrites O2 | |
| 164 | |
| 165 .inline _Atomic_move_long_v9,2 | |
| 166 .volatile | |
| 167 ldx [%o0], %o2 | |
| 168 stx %o2, [%o1] | |
| 169 .nonvolatile | |
| 170 .end | |
| 171 | |
| 172 // Support for jint Atomic::add(jint add_value, volatile jint* dest). | |
| 173 // | |
| 174 // Arguments: | |
| 175 // add_value: O0 (e.g., +1 or -1) | |
| 176 // dest: O1 | |
| 177 // | |
| 178 // Results: | |
| 179 // O0: the new value stored in dest | |
| 180 // | |
| 181 // Overwrites O3 | |
| 182 | |
| 183 .inline _Atomic_add32, 2 | |
| 184 .volatile | |
| 185 2: | |
| 186 ld [%o1], %o2 | |
| 187 add %o0, %o2, %o3 | |
| 188 cas [%o1], %o2, %o3 | |
| 189 cmp %o2, %o3 | |
| 190 bne 2b | |
| 191 nop | |
| 192 add %o0, %o2, %o0 | |
| 193 .nonvolatile | |
| 194 .end | |
| 195 | |
| 196 | |
| 197 // Support for intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) | |
| 198 // | |
| 199 // 64-bit | |
| 200 // | |
| 201 // Arguments: | |
| 202 // add_value: O0 (e.g., +1 or -1) | |
| 203 // dest: O1 | |
| 204 // | |
| 205 // Results: | |
| 206 // O0: the new value stored in dest | |
| 207 // | |
| 208 // Overwrites O3 | |
| 209 | |
| 210 .inline _Atomic_add64, 2 | |
| 211 .volatile | |
| 212 3: | |
| 213 ldx [%o1], %o2 | |
| 214 add %o0, %o2, %o3 | |
| 215 casx [%o1], %o2, %o3 | |
| 216 cmp %o2, %o3 | |
| 217 bne %xcc, 3b | |
| 218 nop | |
| 219 add %o0, %o2, %o0 | |
| 220 .nonvolatile | |
| 221 .end | |
| 222 | |
| 223 | |
| 224 // Support for void OrderAccess::acquire() | |
| 225 // The method is intentionally empty. | |
| 226 // It exists for the sole purpose of generating | |
| 227 // a C/C++ sequence point over which the compiler won't | |
| 228 // reorder code. | |
| 229 | |
| 230 .inline _OrderAccess_acquire,0 | |
| 231 .volatile | |
| 232 .nonvolatile | |
| 233 .end | |
| 234 | |
| 235 | |
| 236 // Support for void OrderAccess::fence() | |
| 237 | |
| 238 .inline _OrderAccess_fence,0 | |
| 239 .volatile | |
| 240 membar #StoreLoad | |
| 241 .nonvolatile | |
| 242 .end | |
| 243 | |
| 244 | |
| 245 // Support for void Prefetch::read(void *loc, intx interval) | |
| 246 // | |
| 247 // Prefetch for several reads. | |
| 248 | |
| 249 .inline _Prefetch_read, 2 | |
| 250 .volatile | |
| 251 prefetch [%o0+%o1], 0 | |
| 252 .nonvolatile | |
| 253 .end | |
| 254 | |
| 255 | |
| 256 // Support for void Prefetch::write(void *loc, intx interval) | |
| 257 // | |
| 258 // Prefetch for several writes. | |
| 259 | |
| 260 .inline _Prefetch_write, 2 | |
| 261 .volatile | |
| 262 prefetch [%o0+%o1], 2 | |
| 263 .nonvolatile | |
| 264 .end | |
| 265 | |
| 266 | |
| 267 // Support for void Copy::conjoint_jlongs_atomic(jlong* from, jlong* to, size_t count) | |
| 268 // | |
| 269 // 32-bit | |
| 270 // | |
| 271 // Arguments: | |
| 272 // from: O0 | |
| 273 // to: O1 | |
| 274 // count: O2 treated as signed | |
| 275 // | |
| 276 // Clobbers: | |
| 277 // long_value: O2, O3 | |
| 278 // count: O4 | |
| 279 // | |
| 280 // if (from > to) { | |
| 281 // while (--count >= 0) { | |
| 282 // *to++ = *from++; | |
| 283 // } | |
| 284 // } else { | |
| 285 // while (--count >= 0) { | |
| 286 // to[count] = from[count]; | |
| 287 // } | |
| 288 // } | |
| 289 .inline _Copy_conjoint_jlongs_atomic, 3 | |
| 290 .volatile | |
| 291 cmp %o0, %o1 | |
| 292 bleu 4f | |
| 293 sll %o2, 3, %o4 | |
| 294 ba 2f | |
| 295 1: | |
| 296 subcc %o4, 8, %o4 | |
| 297 std %o2, [%o1] | |
| 298 add %o0, 8, %o0 | |
| 299 add %o1, 8, %o1 | |
| 300 2: | |
| 301 bge,a 1b | |
| 302 ldd [%o0], %o2 | |
| 303 ba 5f | |
| 304 nop | |
| 305 3: | |
| 306 std %o2, [%o1+%o4] | |
| 307 4: | |
| 308 subcc %o4, 8, %o4 | |
| 309 bge,a 3b | |
| 310 ldd [%o0+%o4], %o2 | |
| 311 5: | |
| 312 .nonvolatile | |
| 313 .end |
