Mercurial > hg > truffle
annotate src/cpu/zero/vm/copy_zero.hpp @ 21947:9f70fc90169d
Truffle: remove expensive assertion
| author | Andreas Woess <andreas.woess@oracle.com> |
|---|---|
| date | Wed, 17 Jun 2015 04:09:30 +0200 |
| parents | f95d63e2154a |
| children |
| rev | line source |
|---|---|
| 1010 | 1 /* |
| 1972 | 2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
| 1010 | 3 * Copyright 2007 Red Hat, Inc. |
| 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 5 * | |
| 6 * This code is free software; you can redistribute it and/or modify it | |
| 7 * under the terms of the GNU General Public License version 2 only, as | |
| 8 * published by the Free Software Foundation. | |
| 9 * | |
| 10 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 13 * version 2 for more details (a copy is included in the LICENSE file that | |
| 14 * accompanied this code). | |
| 15 * | |
| 16 * You should have received a copy of the GNU General Public License version | |
| 17 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 19 * | |
|
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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21 * or visit www.oracle.com if you need additional information or have any |
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22 * questions. |
| 1010 | 23 * |
| 24 */ | |
| 25 | |
| 1972 | 26 #ifndef CPU_ZERO_VM_COPY_ZERO_HPP |
| 27 #define CPU_ZERO_VM_COPY_ZERO_HPP | |
| 28 | |
| 1010 | 29 // Inline functions for memory copy and fill. |
| 30 | |
| 31 static void pd_conjoint_words(HeapWord* from, HeapWord* to, size_t count) { | |
| 32 memmove(to, from, count * HeapWordSize); | |
| 33 } | |
| 34 | |
| 35 static void pd_disjoint_words(HeapWord* from, HeapWord* to, size_t count) { | |
| 36 switch (count) { | |
| 37 case 8: to[7] = from[7]; | |
| 38 case 7: to[6] = from[6]; | |
| 39 case 6: to[5] = from[5]; | |
| 40 case 5: to[4] = from[4]; | |
| 41 case 4: to[3] = from[3]; | |
| 42 case 3: to[2] = from[2]; | |
| 43 case 2: to[1] = from[1]; | |
| 44 case 1: to[0] = from[0]; | |
| 45 case 0: break; | |
| 46 default: | |
| 47 memcpy(to, from, count * HeapWordSize); | |
| 48 break; | |
| 49 } | |
| 50 } | |
| 51 | |
| 52 static void pd_disjoint_words_atomic(HeapWord* from, | |
| 53 HeapWord* to, | |
| 54 size_t count) { | |
| 55 switch (count) { | |
| 56 case 8: to[7] = from[7]; | |
| 57 case 7: to[6] = from[6]; | |
| 58 case 6: to[5] = from[5]; | |
| 59 case 5: to[4] = from[4]; | |
| 60 case 4: to[3] = from[3]; | |
| 61 case 3: to[2] = from[2]; | |
| 62 case 2: to[1] = from[1]; | |
| 63 case 1: to[0] = from[0]; | |
| 64 case 0: break; | |
| 65 default: | |
| 66 while (count-- > 0) { | |
| 67 *to++ = *from++; | |
| 68 } | |
| 69 break; | |
| 70 } | |
| 71 } | |
| 72 | |
| 73 static void pd_aligned_conjoint_words(HeapWord* from, | |
| 74 HeapWord* to, | |
| 75 size_t count) { | |
| 76 memmove(to, from, count * HeapWordSize); | |
| 77 } | |
| 78 | |
| 79 static void pd_aligned_disjoint_words(HeapWord* from, | |
| 80 HeapWord* to, | |
| 81 size_t count) { | |
| 82 pd_disjoint_words(from, to, count); | |
| 83 } | |
| 84 | |
| 85 static void pd_conjoint_bytes(void* from, void* to, size_t count) { | |
| 86 memmove(to, from, count); | |
| 87 } | |
| 88 | |
| 89 static void pd_conjoint_bytes_atomic(void* from, void* to, size_t count) { | |
| 90 memmove(to, from, count); | |
| 91 } | |
| 92 | |
| 93 static void pd_conjoint_jshorts_atomic(jshort* from, jshort* to, size_t count) { | |
| 94 _Copy_conjoint_jshorts_atomic(from, to, count); | |
| 95 } | |
| 96 | |
| 97 static void pd_conjoint_jints_atomic(jint* from, jint* to, size_t count) { | |
| 98 _Copy_conjoint_jints_atomic(from, to, count); | |
| 99 } | |
| 100 | |
| 101 static void pd_conjoint_jlongs_atomic(jlong* from, jlong* to, size_t count) { | |
| 102 _Copy_conjoint_jlongs_atomic(from, to, count); | |
| 103 } | |
| 104 | |
| 105 static void pd_conjoint_oops_atomic(oop* from, oop* to, size_t count) { | |
| 106 #ifdef _LP64 | |
| 107 assert(BytesPerLong == BytesPerOop, "jlongs and oops must be the same size"); | |
| 108 _Copy_conjoint_jlongs_atomic((jlong*)from, (jlong*)to, count); | |
| 109 #else | |
| 110 assert(BytesPerInt == BytesPerOop, "jints and oops must be the same size"); | |
| 111 _Copy_conjoint_jints_atomic((jint*)from, (jint*)to, count); | |
| 112 #endif // _LP64 | |
| 113 } | |
| 114 | |
| 115 static void pd_arrayof_conjoint_bytes(HeapWord* from, | |
| 116 HeapWord* to, | |
| 117 size_t count) { | |
| 118 _Copy_arrayof_conjoint_bytes(from, to, count); | |
| 119 } | |
| 120 | |
| 121 static void pd_arrayof_conjoint_jshorts(HeapWord* from, | |
| 122 HeapWord* to, | |
| 123 size_t count) { | |
| 124 _Copy_arrayof_conjoint_jshorts(from, to, count); | |
| 125 } | |
| 126 | |
| 127 static void pd_arrayof_conjoint_jints(HeapWord* from, | |
| 128 HeapWord* to, | |
| 129 size_t count) { | |
| 130 _Copy_arrayof_conjoint_jints(from, to, count); | |
| 131 } | |
| 132 | |
| 133 static void pd_arrayof_conjoint_jlongs(HeapWord* from, | |
| 134 HeapWord* to, | |
| 135 size_t count) { | |
| 136 _Copy_arrayof_conjoint_jlongs(from, to, count); | |
| 137 } | |
| 138 | |
| 139 static void pd_arrayof_conjoint_oops(HeapWord* from, | |
| 140 HeapWord* to, | |
| 141 size_t count) { | |
| 142 #ifdef _LP64 | |
| 143 assert(BytesPerLong == BytesPerOop, "jlongs and oops must be the same size"); | |
| 144 _Copy_arrayof_conjoint_jlongs(from, to, count); | |
| 145 #else | |
| 146 assert(BytesPerInt == BytesPerOop, "jints and oops must be the same size"); | |
| 147 _Copy_arrayof_conjoint_jints(from, to, count); | |
| 148 #endif // _LP64 | |
| 149 } | |
| 150 | |
| 151 static void pd_fill_to_words(HeapWord* tohw, size_t count, juint value) { | |
| 152 #ifdef _LP64 | |
| 153 julong* to = (julong*) tohw; | |
| 154 julong v = ((julong) value << 32) | value; | |
| 155 #else | |
| 156 juint* to = (juint*) tohw; | |
| 157 juint v = value; | |
| 158 #endif // _LP64 | |
| 159 | |
| 160 while (count-- > 0) { | |
| 161 *to++ = v; | |
| 162 } | |
| 163 } | |
| 164 | |
| 165 static void pd_fill_to_aligned_words(HeapWord* tohw, | |
| 166 size_t count, | |
| 167 juint value) { | |
| 168 pd_fill_to_words(tohw, count, value); | |
| 169 } | |
| 170 | |
| 171 static void pd_fill_to_bytes(void* to, size_t count, jubyte value) { | |
| 172 memset(to, value, count); | |
| 173 } | |
| 174 | |
| 175 static void pd_zero_to_words(HeapWord* tohw, size_t count) { | |
| 176 pd_fill_to_words(tohw, count, 0); | |
| 177 } | |
| 178 | |
| 179 static void pd_zero_to_bytes(void* to, size_t count) { | |
| 180 memset(to, 0, count); | |
| 181 } | |
| 1972 | 182 |
| 183 #endif // CPU_ZERO_VM_COPY_ZERO_HPP |