Mercurial > hg > truffle
annotate src/os_cpu/windows_x86/vm/copy_windows_x86.inline.hpp @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
| author | trims |
|---|---|
| date | Thu, 27 May 2010 19:08:38 -0700 |
| parents | a61af66fc99e |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 0 | 1 /* |
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6941466: Oracle rebranding changes for Hotspot repositories
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2 * Copyright (c) 2003, 2004, 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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6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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6941466: Oracle rebranding changes for Hotspot repositories
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 static void pd_conjoint_words(HeapWord* from, HeapWord* to, size_t count) { | |
| 26 (void)memmove(to, from, count * HeapWordSize); | |
| 27 } | |
| 28 | |
| 29 static void pd_disjoint_words(HeapWord* from, HeapWord* to, size_t count) { | |
| 30 #ifdef AMD64 | |
| 31 switch (count) { | |
| 32 case 8: to[7] = from[7]; | |
| 33 case 7: to[6] = from[6]; | |
| 34 case 6: to[5] = from[5]; | |
| 35 case 5: to[4] = from[4]; | |
| 36 case 4: to[3] = from[3]; | |
| 37 case 3: to[2] = from[2]; | |
| 38 case 2: to[1] = from[1]; | |
| 39 case 1: to[0] = from[0]; | |
| 40 case 0: break; | |
| 41 default: | |
| 42 (void)memcpy(to, from, count * HeapWordSize); | |
| 43 break; | |
| 44 } | |
| 45 #else | |
| 46 (void)memcpy(to, from, count * HeapWordSize); | |
| 47 #endif // AMD64 | |
| 48 } | |
| 49 | |
| 50 static void pd_disjoint_words_atomic(HeapWord* from, HeapWord* to, size_t count) { | |
| 51 switch (count) { | |
| 52 case 8: to[7] = from[7]; | |
| 53 case 7: to[6] = from[6]; | |
| 54 case 6: to[5] = from[5]; | |
| 55 case 5: to[4] = from[4]; | |
| 56 case 4: to[3] = from[3]; | |
| 57 case 3: to[2] = from[2]; | |
| 58 case 2: to[1] = from[1]; | |
| 59 case 1: to[0] = from[0]; | |
| 60 case 0: break; | |
| 61 default: while (count-- > 0) { | |
| 62 *to++ = *from++; | |
| 63 } | |
| 64 break; | |
| 65 } | |
| 66 } | |
| 67 | |
| 68 static void pd_aligned_conjoint_words(HeapWord* from, HeapWord* to, size_t count) { | |
| 69 (void)memmove(to, from, count * HeapWordSize); | |
| 70 } | |
| 71 | |
| 72 static void pd_aligned_disjoint_words(HeapWord* from, HeapWord* to, size_t count) { | |
| 73 pd_disjoint_words(from, to, count); | |
| 74 } | |
| 75 | |
| 76 static void pd_conjoint_bytes(void* from, void* to, size_t count) { | |
| 77 (void)memmove(to, from, count); | |
| 78 } | |
| 79 | |
| 80 static void pd_conjoint_bytes_atomic(void* from, void* to, size_t count) { | |
| 81 pd_conjoint_bytes(from, to, count); | |
| 82 } | |
| 83 | |
| 84 static void pd_conjoint_jshorts_atomic(jshort* from, jshort* to, size_t count) { | |
| 85 // FIXME | |
| 86 (void)memmove(to, from, count << LogBytesPerShort); | |
| 87 } | |
| 88 | |
| 89 static void pd_conjoint_jints_atomic(jint* from, jint* to, size_t count) { | |
| 90 // FIXME | |
| 91 (void)memmove(to, from, count << LogBytesPerInt); | |
| 92 } | |
| 93 | |
| 94 static void pd_conjoint_jlongs_atomic(jlong* from, jlong* to, size_t count) { | |
| 95 #ifdef AMD64 | |
| 96 assert(BytesPerLong == BytesPerOop, "jlongs and oops must be the same size"); | |
| 97 pd_conjoint_oops_atomic((oop*)from, (oop*)to, count); | |
| 98 #else | |
| 99 // Guarantee use of fild/fistp or xmm regs via some asm code, because compilers won't. | |
| 100 __asm { | |
| 101 mov eax, from; | |
| 102 mov edx, to; | |
| 103 mov ecx, count; | |
| 104 cmp eax, edx; | |
| 105 jbe downtest; | |
| 106 jmp uptest; | |
| 107 up: | |
| 108 fild qword ptr [eax]; | |
| 109 fistp qword ptr [edx]; | |
| 110 add eax, 8; | |
| 111 add edx, 8; | |
| 112 uptest: | |
| 113 sub ecx, 1; | |
| 114 jge up; | |
| 115 jmp done; | |
| 116 down: | |
| 117 fild qword ptr [eax][ecx*8]; | |
| 118 fistp qword ptr [edx][ecx*8]; | |
| 119 downtest: | |
| 120 sub ecx, 1; | |
| 121 jge down; | |
| 122 done:; | |
| 123 } | |
| 124 #endif // AMD64 | |
| 125 } | |
| 126 | |
| 127 static void pd_conjoint_oops_atomic(oop* from, oop* to, size_t count) { | |
| 128 // Do better than this: inline memmove body NEEDS CLEANUP | |
| 129 if (from > to) { | |
| 130 while (count-- > 0) { | |
| 131 // Copy forwards | |
| 132 *to++ = *from++; | |
| 133 } | |
| 134 } else { | |
| 135 from += count - 1; | |
| 136 to += count - 1; | |
| 137 while (count-- > 0) { | |
| 138 // Copy backwards | |
| 139 *to-- = *from--; | |
| 140 } | |
| 141 } | |
| 142 } | |
| 143 | |
| 144 static void pd_arrayof_conjoint_bytes(HeapWord* from, HeapWord* to, size_t count) { | |
| 145 #ifdef AMD64 | |
| 146 pd_conjoint_bytes_atomic(from, to, count); | |
| 147 #else | |
| 148 pd_conjoint_bytes(from, to, count); | |
| 149 #endif // AMD64 | |
| 150 } | |
| 151 | |
| 152 static void pd_arrayof_conjoint_jshorts(HeapWord* from, HeapWord* to, size_t count) { | |
| 153 pd_conjoint_jshorts_atomic((jshort*)from, (jshort*)to, count); | |
| 154 } | |
| 155 | |
| 156 static void pd_arrayof_conjoint_jints(HeapWord* from, HeapWord* to, size_t count) { | |
| 157 pd_conjoint_jints_atomic((jint*)from, (jint*)to, count); | |
| 158 } | |
| 159 | |
| 160 static void pd_arrayof_conjoint_jlongs(HeapWord* from, HeapWord* to, size_t count) { | |
| 161 pd_conjoint_jlongs_atomic((jlong*)from, (jlong*)to, count); | |
| 162 } | |
| 163 | |
| 164 static void pd_arrayof_conjoint_oops(HeapWord* from, HeapWord* to, size_t count) { | |
| 165 pd_conjoint_oops_atomic((oop*)from, (oop*)to, count); | |
| 166 } |