Mercurial > hg > truffle
annotate src/os_cpu/linux_x86/vm/copy_linux_x86.inline.hpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
| author | stefank |
|---|---|
| date | Tue, 23 Nov 2010 13:22:55 -0800 |
| parents | d93949c5bdcc |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 2003, 2010, 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_LINUX_X86_VM_COPY_LINUX_X86_INLINE_HPP |
| 26 #define OS_CPU_LINUX_X86_VM_COPY_LINUX_X86_INLINE_HPP | |
| 27 | |
| 0 | 28 static void pd_conjoint_words(HeapWord* from, HeapWord* to, size_t count) { |
| 29 #ifdef AMD64 | |
| 30 (void)memmove(to, from, count * HeapWordSize); | |
| 31 #else | |
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32 // Includes a zero-count check. |
| 0 | 33 intx temp; |
| 34 __asm__ volatile(" testl %6,%6 ;" | |
| 35 " jz 7f ;" | |
| 36 " cmpl %4,%5 ;" | |
| 37 " leal -4(%4,%6,4),%3;" | |
| 38 " jbe 1f ;" | |
| 39 " cmpl %7,%5 ;" | |
| 40 " jbe 4f ;" | |
| 41 "1: cmpl $32,%6 ;" | |
| 42 " ja 3f ;" | |
| 43 " subl %4,%1 ;" | |
| 44 "2: movl (%4),%3 ;" | |
| 45 " movl %7,(%5,%4,1) ;" | |
| 46 " addl $4,%0 ;" | |
| 47 " subl $1,%2 ;" | |
| 48 " jnz 2b ;" | |
| 49 " jmp 7f ;" | |
| 50 "3: rep; smovl ;" | |
| 51 " jmp 7f ;" | |
| 52 "4: cmpl $32,%2 ;" | |
| 53 " movl %7,%0 ;" | |
| 54 " leal -4(%5,%6,4),%1;" | |
| 55 " ja 6f ;" | |
| 56 " subl %4,%1 ;" | |
| 57 "5: movl (%4),%3 ;" | |
| 58 " movl %7,(%5,%4,1) ;" | |
| 59 " subl $4,%0 ;" | |
| 60 " subl $1,%2 ;" | |
| 61 " jnz 5b ;" | |
| 62 " jmp 7f ;" | |
| 63 "6: std ;" | |
| 64 " rep; smovl ;" | |
| 65 " cld ;" | |
| 66 "7: nop " | |
| 67 : "=S" (from), "=D" (to), "=c" (count), "=r" (temp) | |
| 68 : "0" (from), "1" (to), "2" (count), "3" (temp) | |
| 69 : "memory", "flags"); | |
| 70 #endif // AMD64 | |
| 71 } | |
| 72 | |
| 73 static void pd_disjoint_words(HeapWord* from, HeapWord* to, size_t count) { | |
| 74 #ifdef AMD64 | |
| 75 switch (count) { | |
| 76 case 8: to[7] = from[7]; | |
| 77 case 7: to[6] = from[6]; | |
| 78 case 6: to[5] = from[5]; | |
| 79 case 5: to[4] = from[4]; | |
| 80 case 4: to[3] = from[3]; | |
| 81 case 3: to[2] = from[2]; | |
| 82 case 2: to[1] = from[1]; | |
| 83 case 1: to[0] = from[0]; | |
| 84 case 0: break; | |
| 85 default: | |
| 86 (void)memcpy(to, from, count * HeapWordSize); | |
| 87 break; | |
| 88 } | |
| 89 #else | |
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90 // Includes a zero-count check. |
| 0 | 91 intx temp; |
| 92 __asm__ volatile(" testl %6,%6 ;" | |
| 93 " jz 3f ;" | |
| 94 " cmpl $32,%6 ;" | |
| 95 " ja 2f ;" | |
| 96 " subl %4,%1 ;" | |
| 97 "1: movl (%4),%3 ;" | |
| 98 " movl %7,(%5,%4,1);" | |
| 99 " addl $4,%0 ;" | |
| 100 " subl $1,%2 ;" | |
| 101 " jnz 1b ;" | |
| 102 " jmp 3f ;" | |
| 103 "2: rep; smovl ;" | |
| 104 "3: nop " | |
| 105 : "=S" (from), "=D" (to), "=c" (count), "=r" (temp) | |
| 106 : "0" (from), "1" (to), "2" (count), "3" (temp) | |
| 107 : "memory", "cc"); | |
| 108 #endif // AMD64 | |
| 109 } | |
| 110 | |
| 111 static void pd_disjoint_words_atomic(HeapWord* from, HeapWord* to, size_t count) { | |
| 112 #ifdef AMD64 | |
| 113 switch (count) { | |
| 114 case 8: to[7] = from[7]; | |
| 115 case 7: to[6] = from[6]; | |
| 116 case 6: to[5] = from[5]; | |
| 117 case 5: to[4] = from[4]; | |
| 118 case 4: to[3] = from[3]; | |
| 119 case 3: to[2] = from[2]; | |
| 120 case 2: to[1] = from[1]; | |
| 121 case 1: to[0] = from[0]; | |
| 122 case 0: break; | |
| 123 default: | |
| 124 while (count-- > 0) { | |
| 125 *to++ = *from++; | |
| 126 } | |
| 127 break; | |
| 128 } | |
| 129 #else | |
| 130 // pd_disjoint_words is word-atomic in this implementation. | |
| 131 pd_disjoint_words(from, to, count); | |
| 132 #endif // AMD64 | |
| 133 } | |
| 134 | |
| 135 static void pd_aligned_conjoint_words(HeapWord* from, HeapWord* to, size_t count) { | |
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136 pd_conjoint_words(from, to, count); |
| 0 | 137 } |
| 138 | |
| 139 static void pd_aligned_disjoint_words(HeapWord* from, HeapWord* to, size_t count) { | |
| 140 pd_disjoint_words(from, to, count); | |
| 141 } | |
| 142 | |
| 143 static void pd_conjoint_bytes(void* from, void* to, size_t count) { | |
| 144 #ifdef AMD64 | |
| 145 (void)memmove(to, from, count); | |
| 146 #else | |
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6730276: JDI_REGRESSION tests fail with "Error: count must be non-zero" error on x86
kvn
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147 // Includes a zero-count check. |
| 0 | 148 intx temp; |
| 149 __asm__ volatile(" testl %6,%6 ;" | |
| 150 " jz 13f ;" | |
| 151 " cmpl %4,%5 ;" | |
| 152 " leal -1(%4,%6),%3 ;" | |
| 153 " jbe 1f ;" | |
| 154 " cmpl %7,%5 ;" | |
| 155 " jbe 8f ;" | |
| 156 "1: cmpl $3,%6 ;" | |
| 157 " jbe 6f ;" | |
| 158 " movl %6,%3 ;" | |
| 159 " movl $4,%2 ;" | |
| 160 " subl %4,%2 ;" | |
| 161 " andl $3,%2 ;" | |
| 162 " jz 2f ;" | |
| 163 " subl %6,%3 ;" | |
| 164 " rep; smovb ;" | |
| 165 "2: movl %7,%2 ;" | |
| 166 " shrl $2,%2 ;" | |
| 167 " jz 5f ;" | |
| 168 " cmpl $32,%2 ;" | |
| 169 " ja 4f ;" | |
| 170 " subl %4,%1 ;" | |
| 171 "3: movl (%4),%%edx ;" | |
| 172 " movl %%edx,(%5,%4,1);" | |
| 173 " addl $4,%0 ;" | |
| 174 " subl $1,%2 ;" | |
| 175 " jnz 3b ;" | |
| 176 " addl %4,%1 ;" | |
| 177 " jmp 5f ;" | |
| 178 "4: rep; smovl ;" | |
| 179 "5: movl %7,%2 ;" | |
| 180 " andl $3,%2 ;" | |
| 181 " jz 13f ;" | |
| 182 "6: xorl %7,%3 ;" | |
| 183 "7: movb (%4,%7,1),%%dl ;" | |
| 184 " movb %%dl,(%5,%7,1) ;" | |
| 185 " addl $1,%3 ;" | |
| 186 " subl $1,%2 ;" | |
| 187 " jnz 7b ;" | |
| 188 " jmp 13f ;" | |
| 189 "8: std ;" | |
| 190 " cmpl $12,%2 ;" | |
| 191 " ja 9f ;" | |
| 192 " movl %7,%0 ;" | |
| 193 " leal -1(%6,%5),%1 ;" | |
| 194 " jmp 11f ;" | |
| 195 "9: xchgl %3,%2 ;" | |
| 196 " movl %6,%0 ;" | |
| 197 " addl $1,%2 ;" | |
| 198 " leal -1(%7,%5),%1 ;" | |
| 199 " andl $3,%2 ;" | |
| 200 " jz 10f ;" | |
| 201 " subl %6,%3 ;" | |
| 202 " rep; smovb ;" | |
| 203 "10: movl %7,%2 ;" | |
| 204 " subl $3,%0 ;" | |
| 205 " shrl $2,%2 ;" | |
| 206 " subl $3,%1 ;" | |
| 207 " rep; smovl ;" | |
| 208 " andl $3,%3 ;" | |
| 209 " jz 12f ;" | |
| 210 " movl %7,%2 ;" | |
| 211 " addl $3,%0 ;" | |
| 212 " addl $3,%1 ;" | |
| 213 "11: rep; smovb ;" | |
| 214 "12: cld ;" | |
| 215 "13: nop ;" | |
| 216 : "=S" (from), "=D" (to), "=c" (count), "=r" (temp) | |
| 217 : "0" (from), "1" (to), "2" (count), "3" (temp) | |
| 218 : "memory", "flags", "%edx"); | |
| 219 #endif // AMD64 | |
| 220 } | |
| 221 | |
| 222 static void pd_conjoint_bytes_atomic(void* from, void* to, size_t count) { | |
| 223 pd_conjoint_bytes(from, to, count); | |
| 224 } | |
| 225 | |
| 226 static void pd_conjoint_jshorts_atomic(jshort* from, jshort* to, size_t count) { | |
| 227 _Copy_conjoint_jshorts_atomic(from, to, count); | |
| 228 } | |
| 229 | |
| 230 static void pd_conjoint_jints_atomic(jint* from, jint* to, size_t count) { | |
| 231 #ifdef AMD64 | |
| 232 _Copy_conjoint_jints_atomic(from, to, count); | |
| 233 #else | |
| 234 assert(HeapWordSize == BytesPerInt, "heapwords and jints must be the same size"); | |
| 235 // pd_conjoint_words is word-atomic in this implementation. | |
| 236 pd_conjoint_words((HeapWord*)from, (HeapWord*)to, count); | |
| 237 #endif // AMD64 | |
| 238 } | |
| 239 | |
| 240 static void pd_conjoint_jlongs_atomic(jlong* from, jlong* to, size_t count) { | |
| 241 #ifdef AMD64 | |
| 242 _Copy_conjoint_jlongs_atomic(from, to, count); | |
| 243 #else | |
| 244 // Guarantee use of fild/fistp or xmm regs via some asm code, because compilers won't. | |
| 245 if (from > to) { | |
| 246 while (count-- > 0) { | |
| 247 __asm__ volatile("fildll (%0); fistpll (%1)" | |
| 248 : | |
| 249 : "r" (from), "r" (to) | |
| 250 : "memory" ); | |
| 251 ++from; | |
| 252 ++to; | |
| 253 } | |
| 254 } else { | |
| 255 while (count-- > 0) { | |
| 256 __asm__ volatile("fildll (%0,%2,8); fistpll (%1,%2,8)" | |
| 257 : | |
| 258 : "r" (from), "r" (to), "r" (count) | |
| 259 : "memory" ); | |
| 260 } | |
| 261 } | |
| 262 #endif // AMD64 | |
| 263 } | |
| 264 | |
| 265 static void pd_conjoint_oops_atomic(oop* from, oop* to, size_t count) { | |
| 266 #ifdef AMD64 | |
| 267 assert(BytesPerLong == BytesPerOop, "jlongs and oops must be the same size"); | |
| 268 _Copy_conjoint_jlongs_atomic((jlong*)from, (jlong*)to, count); | |
| 269 #else | |
| 270 assert(HeapWordSize == BytesPerOop, "heapwords and oops must be the same size"); | |
| 271 // pd_conjoint_words is word-atomic in this implementation. | |
| 272 pd_conjoint_words((HeapWord*)from, (HeapWord*)to, count); | |
| 273 #endif // AMD64 | |
| 274 } | |
| 275 | |
| 276 static void pd_arrayof_conjoint_bytes(HeapWord* from, HeapWord* to, size_t count) { | |
| 277 _Copy_arrayof_conjoint_bytes(from, to, count); | |
| 278 } | |
| 279 | |
| 280 static void pd_arrayof_conjoint_jshorts(HeapWord* from, HeapWord* to, size_t count) { | |
| 281 _Copy_arrayof_conjoint_jshorts(from, to, count); | |
| 282 } | |
| 283 | |
| 284 static void pd_arrayof_conjoint_jints(HeapWord* from, HeapWord* to, size_t count) { | |
| 285 #ifdef AMD64 | |
| 286 _Copy_arrayof_conjoint_jints(from, to, count); | |
| 287 #else | |
| 288 pd_conjoint_jints_atomic((jint*)from, (jint*)to, count); | |
| 289 #endif // AMD64 | |
| 290 } | |
| 291 | |
| 292 static void pd_arrayof_conjoint_jlongs(HeapWord* from, HeapWord* to, size_t count) { | |
| 293 #ifdef AMD64 | |
| 294 _Copy_arrayof_conjoint_jlongs(from, to, count); | |
| 295 #else | |
| 296 pd_conjoint_jlongs_atomic((jlong*)from, (jlong*)to, count); | |
| 297 #endif // AMD64 | |
| 298 } | |
| 299 | |
| 300 static void pd_arrayof_conjoint_oops(HeapWord* from, HeapWord* to, size_t count) { | |
| 301 #ifdef AMD64 | |
| 302 assert(BytesPerLong == BytesPerOop, "jlongs and oops must be the same size"); | |
| 303 _Copy_arrayof_conjoint_jlongs(from, to, count); | |
| 304 #else | |
| 305 pd_conjoint_oops_atomic((oop*)from, (oop*)to, count); | |
| 306 #endif // AMD64 | |
| 307 } | |
| 1972 | 308 |
| 309 #endif // OS_CPU_LINUX_X86_VM_COPY_LINUX_X86_INLINE_HPP |