1 /* 2 * Copyright (c) 2003, 2019, 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 #ifndef OS_CPU_SOLARIS_X86_COPY_SOLARIS_X86_INLINE_HPP 26 #define OS_CPU_SOLARIS_X86_COPY_SOLARIS_X86_INLINE_HPP 27 28 static void pd_conjoint_words(const HeapWord* from, HeapWord* to, size_t count) { 29 (void)memmove(to, from, count * HeapWordSize); 30 } 31 32 static void pd_disjoint_words(const HeapWord* from, HeapWord* to, size_t count) { 33 #ifndef AMD64 34 (void)memcpy(to, from, count * HeapWordSize); 35 #else 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 (void)memcpy(to, from, count * HeapWordSize); 48 break; 49 } 50 #endif // AMD64 51 } 52 53 static void pd_disjoint_words_atomic(const HeapWord* from, HeapWord* to, size_t count) { 54 switch (count) { 55 case 8: to[7] = from[7]; 56 case 7: to[6] = from[6]; 57 case 6: to[5] = from[5]; 58 case 5: to[4] = from[4]; 59 case 4: to[3] = from[3]; 60 case 3: to[2] = from[2]; 61 case 2: to[1] = from[1]; 62 case 1: to[0] = from[0]; 63 case 0: break; 64 default: while (count-- > 0) { 65 *to++ = *from++; 66 } 67 break; 68 } 69 } 70 71 static void pd_aligned_conjoint_words(const HeapWord* from, HeapWord* to, size_t count) { 72 (void)memmove(to, from, count * HeapWordSize); 73 } 74 75 static void pd_aligned_disjoint_words(const HeapWord* from, HeapWord* to, size_t count) { 76 pd_disjoint_words(from, to, count); 77 } 78 79 static void pd_conjoint_bytes(const void* from, void* to, size_t count) { 80 #ifdef AMD64 81 (void)memmove(to, from, count); 82 #else 83 _Copy_conjoint_bytes(from, to, count); 84 #endif // AMD64 85 } 86 87 static void pd_conjoint_bytes_atomic(const void* from, void* to, size_t count) { 88 pd_conjoint_bytes(from, to, count); 89 } 90 91 static void pd_conjoint_jshorts_atomic(const jshort* from, jshort* to, size_t count) { 92 _Copy_conjoint_jshorts_atomic(from, to, count); 93 } 94 95 static void pd_conjoint_jints_atomic(const jint* from, jint* to, size_t count) { 96 _Copy_conjoint_jints_atomic(from, to, count); 97 } 98 99 static void pd_conjoint_jlongs_atomic(const jlong* from, jlong* to, size_t count) { 100 // Guarantee use of fild/fistp or xmm regs via some asm code, because compilers won't. 101 _Copy_conjoint_jlongs_atomic(from, to, count); 102 } 103 104 static void pd_conjoint_oops_atomic(const oop* from, oop* to, size_t count) { 105 #ifdef AMD64 106 assert(BytesPerLong == BytesPerOop, "jlongs and oops must be the same size"); 107 _Copy_conjoint_jlongs_atomic((const jlong*)from, (jlong*)to, count); 108 #else 109 _Copy_conjoint_jints_atomic((const jint*)from, (jint*)to, count); 110 #endif // AMD64 111 } 112 113 static void pd_arrayof_conjoint_bytes(const HeapWord* from, HeapWord* to, size_t count) { 114 _Copy_arrayof_conjoint_bytes(from, to, count); 115 } 116 117 static void pd_arrayof_conjoint_jshorts(const HeapWord* from, HeapWord* to, size_t count) { 118 _Copy_arrayof_conjoint_jshorts(from, to, count); 119 } 120 121 static void pd_arrayof_conjoint_jints(const HeapWord* from, HeapWord* to, size_t count) { 122 _Copy_arrayof_conjoint_jints(from, to, count); 123 } 124 125 static void pd_arrayof_conjoint_jlongs(const HeapWord* from, HeapWord* to, size_t count) { 126 #ifdef AMD64 127 _Copy_arrayof_conjoint_jlongs(from, to, count); 128 #else 129 pd_conjoint_jlongs_atomic((const jlong*)from, (jlong*)to, count); 130 #endif // AMD64 131 } 132 133 static void pd_arrayof_conjoint_oops(const HeapWord* from, HeapWord* to, size_t count) { 134 #ifdef AMD64 135 assert(BytesPerLong == BytesPerOop, "jlongs and oops must be the same size"); 136 _Copy_arrayof_conjoint_jlongs(from, to, count); 137 #else 138 assert(BytesPerInt == BytesPerOop, "jints and oops must be the same size"); 139 _Copy_arrayof_conjoint_jints(from, to, count); 140 #endif // AMD64 141 } 142 143 #endif // OS_CPU_SOLARIS_X86_COPY_SOLARIS_X86_INLINE_HPP