Mercurial > hg > truffle
annotate src/os_cpu/linux_x86/vm/linux_x86_64.s @ 17467:55fb97c4c58d hs25-b65
8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013
Summary: Copyright year updated for files modified during 2013
Reviewed-by: twisti, iveresov
| author | mikael |
|---|---|
| date | Tue, 24 Dec 2013 11:48:39 -0800 |
| parents | 980532a806a5 |
| children | 4ca6dc0799b6 |
| rev | line source |
|---|---|
| 0 | 1 # |
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8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013
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2 # Copyright (c) 2004, 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 | |
| 25 # NOTE WELL! The _Copy functions are called directly | |
| 26 # from server-compiler-generated code via CallLeafNoFP, | |
| 27 # which means that they *must* either not use floating | |
| 28 # point or use it in the same manner as does the server | |
| 29 # compiler. | |
| 30 | |
| 31 .globl _Copy_arrayof_conjoint_bytes | |
| 32 .globl _Copy_arrayof_conjoint_jshorts | |
| 33 .globl _Copy_conjoint_jshorts_atomic | |
| 34 .globl _Copy_arrayof_conjoint_jints | |
| 35 .globl _Copy_conjoint_jints_atomic | |
| 36 .globl _Copy_arrayof_conjoint_jlongs | |
| 37 .globl _Copy_conjoint_jlongs_atomic | |
| 38 | |
| 39 .text | |
| 40 | |
| 41 .globl SpinPause | |
| 42 .align 16 | |
| 43 .type SpinPause,@function | |
| 44 SpinPause: | |
| 45 rep | |
| 46 nop | |
| 47 movq $1, %rax | |
| 48 ret | |
| 49 | |
| 50 # Support for void Copy::arrayof_conjoint_bytes(void* from, | |
| 51 # void* to, | |
| 52 # size_t count) | |
| 53 # rdi - from | |
| 54 # rsi - to | |
| 55 # rdx - count, treated as ssize_t | |
| 56 # | |
| 57 .p2align 4,,15 | |
| 58 .type _Copy_arrayof_conjoint_bytes,@function | |
| 59 _Copy_arrayof_conjoint_bytes: | |
| 60 movq %rdx,%r8 # byte count | |
| 61 shrq $3,%rdx # qword count | |
| 62 cmpq %rdi,%rsi | |
| 63 leaq -1(%rdi,%r8,1),%rax # from + bcount*1 - 1 | |
| 64 jbe acb_CopyRight | |
| 65 cmpq %rax,%rsi | |
| 66 jbe acb_CopyLeft | |
| 67 acb_CopyRight: | |
| 68 leaq -8(%rdi,%rdx,8),%rax # from + qcount*8 - 8 | |
| 69 leaq -8(%rsi,%rdx,8),%rcx # to + qcount*8 - 8 | |
| 70 negq %rdx | |
| 71 jmp 7f | |
| 72 .p2align 4,,15 | |
| 73 1: movq 8(%rax,%rdx,8),%rsi | |
| 74 movq %rsi,8(%rcx,%rdx,8) | |
| 75 addq $1,%rdx | |
| 76 jnz 1b | |
| 77 2: testq $4,%r8 # check for trailing dword | |
| 78 jz 3f | |
| 79 movl 8(%rax),%esi # copy trailing dword | |
| 80 movl %esi,8(%rcx) | |
| 81 addq $4,%rax | |
| 82 addq $4,%rcx # original %rsi is trashed, so we | |
| 83 # can't use it as a base register | |
| 84 3: testq $2,%r8 # check for trailing word | |
| 85 jz 4f | |
| 86 movw 8(%rax),%si # copy trailing word | |
| 87 movw %si,8(%rcx) | |
| 88 addq $2,%rcx | |
| 89 4: testq $1,%r8 # check for trailing byte | |
| 90 jz 5f | |
| 91 movb -1(%rdi,%r8,1),%al # copy trailing byte | |
| 92 movb %al,8(%rcx) | |
| 93 5: ret | |
| 94 .p2align 4,,15 | |
| 95 6: movq -24(%rax,%rdx,8),%rsi | |
| 96 movq %rsi,-24(%rcx,%rdx,8) | |
| 97 movq -16(%rax,%rdx,8),%rsi | |
| 98 movq %rsi,-16(%rcx,%rdx,8) | |
| 99 movq -8(%rax,%rdx,8),%rsi | |
| 100 movq %rsi,-8(%rcx,%rdx,8) | |
| 101 movq (%rax,%rdx,8),%rsi | |
| 102 movq %rsi,(%rcx,%rdx,8) | |
| 103 7: addq $4,%rdx | |
| 104 jle 6b | |
| 105 subq $4,%rdx | |
| 106 jl 1b | |
| 107 jmp 2b | |
| 108 acb_CopyLeft: | |
| 109 testq $1,%r8 # check for trailing byte | |
| 110 jz 1f | |
| 111 movb -1(%rdi,%r8,1),%cl # copy trailing byte | |
| 112 movb %cl,-1(%rsi,%r8,1) | |
| 113 subq $1,%r8 # adjust for possible trailing word | |
| 114 1: testq $2,%r8 # check for trailing word | |
| 115 jz 2f | |
| 116 movw -2(%rdi,%r8,1),%cx # copy trailing word | |
| 117 movw %cx,-2(%rsi,%r8,1) | |
| 118 2: testq $4,%r8 # check for trailing dword | |
| 119 jz 5f | |
| 120 movl (%rdi,%rdx,8),%ecx # copy trailing dword | |
| 121 movl %ecx,(%rsi,%rdx,8) | |
| 122 jmp 5f | |
| 123 .p2align 4,,15 | |
| 124 3: movq -8(%rdi,%rdx,8),%rcx | |
| 125 movq %rcx,-8(%rsi,%rdx,8) | |
| 126 subq $1,%rdx | |
| 127 jnz 3b | |
| 128 ret | |
| 129 .p2align 4,,15 | |
| 130 4: movq 24(%rdi,%rdx,8),%rcx | |
| 131 movq %rcx,24(%rsi,%rdx,8) | |
| 132 movq 16(%rdi,%rdx,8),%rcx | |
| 133 movq %rcx,16(%rsi,%rdx,8) | |
| 134 movq 8(%rdi,%rdx,8),%rcx | |
| 135 movq %rcx,8(%rsi,%rdx,8) | |
| 136 movq (%rdi,%rdx,8),%rcx | |
| 137 movq %rcx,(%rsi,%rdx,8) | |
| 138 5: subq $4,%rdx | |
| 139 jge 4b | |
| 140 addq $4,%rdx | |
| 141 jg 3b | |
| 142 ret | |
| 143 | |
| 144 # Support for void Copy::arrayof_conjoint_jshorts(void* from, | |
| 145 # void* to, | |
| 146 # size_t count) | |
| 147 # Equivalent to | |
| 148 # conjoint_jshorts_atomic | |
| 149 # | |
| 150 # If 'from' and/or 'to' are aligned on 4- or 2-byte boundaries, we | |
| 151 # let the hardware handle it. The tow or four words within dwords | |
| 152 # or qwords that span cache line boundaries will still be loaded | |
| 153 # and stored atomically. | |
| 154 # | |
| 155 # rdi - from | |
| 156 # rsi - to | |
| 157 # rdx - count, treated as ssize_t | |
| 158 # | |
| 159 .p2align 4,,15 | |
| 160 .type _Copy_arrayof_conjoint_jshorts,@function | |
| 161 .type _Copy_conjoint_jshorts_atomic,@function | |
| 162 _Copy_arrayof_conjoint_jshorts: | |
| 163 _Copy_conjoint_jshorts_atomic: | |
| 164 movq %rdx,%r8 # word count | |
| 165 shrq $2,%rdx # qword count | |
| 166 cmpq %rdi,%rsi | |
| 167 leaq -2(%rdi,%r8,2),%rax # from + wcount*2 - 2 | |
| 168 jbe acs_CopyRight | |
| 169 cmpq %rax,%rsi | |
| 170 jbe acs_CopyLeft | |
| 171 acs_CopyRight: | |
| 172 leaq -8(%rdi,%rdx,8),%rax # from + qcount*8 - 8 | |
| 173 leaq -8(%rsi,%rdx,8),%rcx # to + qcount*8 - 8 | |
| 174 negq %rdx | |
| 175 jmp 6f | |
| 176 1: movq 8(%rax,%rdx,8),%rsi | |
| 177 movq %rsi,8(%rcx,%rdx,8) | |
| 178 addq $1,%rdx | |
| 179 jnz 1b | |
| 180 2: testq $2,%r8 # check for trailing dword | |
| 181 jz 3f | |
| 182 movl 8(%rax),%esi # copy trailing dword | |
| 183 movl %esi,8(%rcx) | |
| 184 addq $4,%rcx # original %rsi is trashed, so we | |
| 185 # can't use it as a base register | |
| 186 3: testq $1,%r8 # check for trailing word | |
| 187 jz 4f | |
| 188 movw -2(%rdi,%r8,2),%si # copy trailing word | |
| 189 movw %si,8(%rcx) | |
| 190 4: ret | |
| 191 .p2align 4,,15 | |
| 192 5: movq -24(%rax,%rdx,8),%rsi | |
| 193 movq %rsi,-24(%rcx,%rdx,8) | |
| 194 movq -16(%rax,%rdx,8),%rsi | |
| 195 movq %rsi,-16(%rcx,%rdx,8) | |
| 196 movq -8(%rax,%rdx,8),%rsi | |
| 197 movq %rsi,-8(%rcx,%rdx,8) | |
| 198 movq (%rax,%rdx,8),%rsi | |
| 199 movq %rsi,(%rcx,%rdx,8) | |
| 200 6: addq $4,%rdx | |
| 201 jle 5b | |
| 202 subq $4,%rdx | |
| 203 jl 1b | |
| 204 jmp 2b | |
| 205 acs_CopyLeft: | |
| 206 testq $1,%r8 # check for trailing word | |
| 207 jz 1f | |
| 208 movw -2(%rdi,%r8,2),%cx # copy trailing word | |
| 209 movw %cx,-2(%rsi,%r8,2) | |
| 210 1: testq $2,%r8 # check for trailing dword | |
| 211 jz 4f | |
| 212 movl (%rdi,%rdx,8),%ecx # copy trailing dword | |
| 213 movl %ecx,(%rsi,%rdx,8) | |
| 214 jmp 4f | |
| 215 2: movq -8(%rdi,%rdx,8),%rcx | |
| 216 movq %rcx,-8(%rsi,%rdx,8) | |
| 217 subq $1,%rdx | |
| 218 jnz 2b | |
| 219 ret | |
| 220 .p2align 4,,15 | |
| 221 3: movq 24(%rdi,%rdx,8),%rcx | |
| 222 movq %rcx,24(%rsi,%rdx,8) | |
| 223 movq 16(%rdi,%rdx,8),%rcx | |
| 224 movq %rcx,16(%rsi,%rdx,8) | |
| 225 movq 8(%rdi,%rdx,8),%rcx | |
| 226 movq %rcx,8(%rsi,%rdx,8) | |
| 227 movq (%rdi,%rdx,8),%rcx | |
| 228 movq %rcx,(%rsi,%rdx,8) | |
| 229 4: subq $4,%rdx | |
| 230 jge 3b | |
| 231 addq $4,%rdx | |
| 232 jg 2b | |
| 233 ret | |
| 234 | |
| 235 # Support for void Copy::arrayof_conjoint_jints(jint* from, | |
| 236 # jint* to, | |
| 237 # size_t count) | |
| 238 # Equivalent to | |
| 239 # conjoint_jints_atomic | |
| 240 # | |
| 241 # If 'from' and/or 'to' are aligned on 4-byte boundaries, we let | |
| 242 # the hardware handle it. The two dwords within qwords that span | |
| 243 # cache line boundaries will still be loaded and stored atomically. | |
| 244 # | |
| 245 # rdi - from | |
| 246 # rsi - to | |
| 247 # rdx - count, treated as ssize_t | |
| 248 # | |
| 249 .p2align 4,,15 | |
| 250 .type _Copy_arrayof_conjoint_jints,@function | |
| 251 .type _Copy_conjoint_jints_atomic,@function | |
| 252 _Copy_arrayof_conjoint_jints: | |
| 253 _Copy_conjoint_jints_atomic: | |
| 254 movq %rdx,%r8 # dword count | |
| 255 shrq %rdx # qword count | |
| 256 cmpq %rdi,%rsi | |
| 257 leaq -4(%rdi,%r8,4),%rax # from + dcount*4 - 4 | |
| 258 jbe aci_CopyRight | |
| 259 cmpq %rax,%rsi | |
| 260 jbe aci_CopyLeft | |
| 261 aci_CopyRight: | |
| 262 leaq -8(%rdi,%rdx,8),%rax # from + qcount*8 - 8 | |
| 263 leaq -8(%rsi,%rdx,8),%rcx # to + qcount*8 - 8 | |
| 264 negq %rdx | |
| 265 jmp 5f | |
| 266 .p2align 4,,15 | |
| 267 1: movq 8(%rax,%rdx,8),%rsi | |
| 268 movq %rsi,8(%rcx,%rdx,8) | |
| 269 addq $1,%rdx | |
| 270 jnz 1b | |
| 271 2: testq $1,%r8 # check for trailing dword | |
| 272 jz 3f | |
| 273 movl 8(%rax),%esi # copy trailing dword | |
| 274 movl %esi,8(%rcx) | |
| 275 3: ret | |
| 276 .p2align 4,,15 | |
| 277 4: movq -24(%rax,%rdx,8),%rsi | |
| 278 movq %rsi,-24(%rcx,%rdx,8) | |
| 279 movq -16(%rax,%rdx,8),%rsi | |
| 280 movq %rsi,-16(%rcx,%rdx,8) | |
| 281 movq -8(%rax,%rdx,8),%rsi | |
| 282 movq %rsi,-8(%rcx,%rdx,8) | |
| 283 movq (%rax,%rdx,8),%rsi | |
| 284 movq %rsi,(%rcx,%rdx,8) | |
| 285 5: addq $4,%rdx | |
| 286 jle 4b | |
| 287 subq $4,%rdx | |
| 288 jl 1b | |
| 289 jmp 2b | |
| 290 aci_CopyLeft: | |
| 291 testq $1,%r8 # check for trailing dword | |
| 292 jz 3f | |
| 293 movl -4(%rdi,%r8,4),%ecx # copy trailing dword | |
| 294 movl %ecx,-4(%rsi,%r8,4) | |
| 295 jmp 3f | |
| 296 1: movq -8(%rdi,%rdx,8),%rcx | |
| 297 movq %rcx,-8(%rsi,%rdx,8) | |
| 298 subq $1,%rdx | |
| 299 jnz 1b | |
| 300 ret | |
| 301 .p2align 4,,15 | |
| 302 2: movq 24(%rdi,%rdx,8),%rcx | |
| 303 movq %rcx,24(%rsi,%rdx,8) | |
| 304 movq 16(%rdi,%rdx,8),%rcx | |
| 305 movq %rcx,16(%rsi,%rdx,8) | |
| 306 movq 8(%rdi,%rdx,8),%rcx | |
| 307 movq %rcx,8(%rsi,%rdx,8) | |
| 308 movq (%rdi,%rdx,8),%rcx | |
| 309 movq %rcx,(%rsi,%rdx,8) | |
| 310 3: subq $4,%rdx | |
| 311 jge 2b | |
| 312 addq $4,%rdx | |
| 313 jg 1b | |
| 314 ret | |
| 315 | |
| 316 # Support for void Copy::arrayof_conjoint_jlongs(jlong* from, | |
| 317 # jlong* to, | |
| 318 # size_t count) | |
| 319 # Equivalent to | |
| 320 # conjoint_jlongs_atomic | |
| 321 # arrayof_conjoint_oops | |
| 322 # conjoint_oops_atomic | |
| 323 # | |
| 324 # rdi - from | |
| 325 # rsi - to | |
| 326 # rdx - count, treated as ssize_t | |
| 327 # | |
| 328 .p2align 4,,15 | |
| 329 .type _Copy_arrayof_conjoint_jlongs,@function | |
| 330 .type _Copy_conjoint_jlongs_atomic,@function | |
| 331 _Copy_arrayof_conjoint_jlongs: | |
| 332 _Copy_conjoint_jlongs_atomic: | |
| 333 cmpq %rdi,%rsi | |
| 334 leaq -8(%rdi,%rdx,8),%rax # from + count*8 - 8 | |
| 335 jbe acl_CopyRight | |
| 336 cmpq %rax,%rsi | |
| 337 jbe acl_CopyLeft | |
| 338 acl_CopyRight: | |
| 339 leaq -8(%rsi,%rdx,8),%rcx # to + count*8 - 8 | |
| 340 negq %rdx | |
| 341 jmp 3f | |
| 342 1: movq 8(%rax,%rdx,8),%rsi | |
| 343 movq %rsi,8(%rcx,%rdx,8) | |
| 344 addq $1,%rdx | |
| 345 jnz 1b | |
| 346 ret | |
| 347 .p2align 4,,15 | |
| 348 2: movq -24(%rax,%rdx,8),%rsi | |
| 349 movq %rsi,-24(%rcx,%rdx,8) | |
| 350 movq -16(%rax,%rdx,8),%rsi | |
| 351 movq %rsi,-16(%rcx,%rdx,8) | |
| 352 movq -8(%rax,%rdx,8),%rsi | |
| 353 movq %rsi,-8(%rcx,%rdx,8) | |
| 354 movq (%rax,%rdx,8),%rsi | |
| 355 movq %rsi,(%rcx,%rdx,8) | |
| 356 3: addq $4,%rdx | |
| 357 jle 2b | |
| 358 subq $4,%rdx | |
| 359 jl 1b | |
| 360 ret | |
| 361 4: movq -8(%rdi,%rdx,8),%rcx | |
| 362 movq %rcx,-8(%rsi,%rdx,8) | |
| 363 subq $1,%rdx | |
| 364 jnz 4b | |
| 365 ret | |
| 366 .p2align 4,,15 | |
| 367 5: movq 24(%rdi,%rdx,8),%rcx | |
| 368 movq %rcx,24(%rsi,%rdx,8) | |
| 369 movq 16(%rdi,%rdx,8),%rcx | |
| 370 movq %rcx,16(%rsi,%rdx,8) | |
| 371 movq 8(%rdi,%rdx,8),%rcx | |
| 372 movq %rcx,8(%rsi,%rdx,8) | |
| 373 movq (%rdi,%rdx,8),%rcx | |
| 374 movq %rcx,(%rsi,%rdx,8) | |
| 375 acl_CopyLeft: | |
| 376 subq $4,%rdx | |
| 377 jge 5b | |
| 378 addq $4,%rdx | |
| 379 jg 4b | |
| 380 ret |