Mercurial > hg > graal-compiler
annotate src/share/vm/asm/register.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 | c18cbe5936b8 |
| children | 1d7922586cf6 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 2000, 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 SHARE_VM_ASM_REGISTER_HPP |
| 26 #define SHARE_VM_ASM_REGISTER_HPP | |
| 27 | |
| 28 #include "utilities/top.hpp" | |
| 29 | |
| 0 | 30 // Use AbstractRegister as shortcut |
| 31 class AbstractRegisterImpl; | |
| 32 typedef AbstractRegisterImpl* AbstractRegister; | |
| 33 | |
| 34 | |
| 35 // The super class for platform specific registers. Instead of using value objects, | |
| 36 // registers are implemented as pointers. Subclassing is used so all registers can | |
| 37 // use the debugging suport below. No virtual functions are used for efficiency. | |
| 38 // They are canonicalized; i.e., registers are equal if their pointers are equal, | |
| 39 // and vice versa. A concrete implementation may just map the register onto 'this'. | |
| 40 | |
| 41 class AbstractRegisterImpl { | |
| 42 protected: | |
| 43 int value() const { return (int)(intx)this; } | |
| 44 }; | |
| 45 | |
| 46 | |
| 47 // | |
| 48 // Macros for use in defining Register instances. We'd like to be | |
| 49 // able to simply define const instances of the RegisterImpl* for each | |
| 50 // of the registers needed on a system in a header file. However many | |
| 51 // compilers don't handle this very well and end up producing a | |
| 52 // private definition in every file which includes the header file. | |
| 53 // Along with the static constructors necessary for initialization it | |
| 54 // can consume a significant amount of space in the result library. | |
| 55 // | |
| 56 // The following macros allow us to declare the instance in a .hpp and | |
| 57 // produce an enumeration value which has the same number. Then in a | |
| 58 // .cpp the the register instance can be defined using the enumeration | |
| 59 // value. This avoids the use of static constructors and multiple | |
| 60 // definitions per .cpp. In addition #defines for the register can be | |
| 61 // produced so that the constant registers can be inlined. These | |
| 62 // macros should not be used inside other macros, because you may get | |
| 63 // multiple evaluations of the macros which can give bad results. | |
| 64 // | |
| 65 // Here are some example uses and expansions. Note that the macro | |
| 66 // invocation is terminated with a ;. | |
| 67 // | |
| 68 // CONSTANT_REGISTER_DECLARATION(Register, G0, 0); | |
| 69 // | |
| 70 // extern const Register G0 ; | |
| 71 // enum { G0_RegisterEnumValue = 0 } ; | |
| 72 // | |
| 73 // REGISTER_DECLARATION(Register, Gmethod, G5); | |
| 74 // | |
| 75 // extern const Register Gmethod ; | |
| 76 // enum { Gmethod_RegisterEnumValue = G5_RegisterEnumValue } ; | |
| 77 // | |
| 78 // REGISTER_DEFINITION(Register, G0); | |
| 79 // | |
| 80 // const Register G0 = ( ( Register ) G0_RegisterEnumValue ) ; | |
| 81 // | |
| 82 | |
| 83 #define AS_REGISTER(type,name) ((type)name##_##type##EnumValue) | |
| 84 | |
| 85 #define CONSTANT_REGISTER_DECLARATION(type, name, value) \ | |
| 86 extern const type name; \ | |
| 87 enum { name##_##type##EnumValue = (value) } | |
| 88 | |
| 89 #define REGISTER_DECLARATION(type, name, value) \ | |
| 90 extern const type name; \ | |
| 91 enum { name##_##type##EnumValue = value##_##type##EnumValue } | |
| 92 | |
| 93 #define REGISTER_DEFINITION(type, name) \ | |
| 94 const type name = ((type)name##_##type##EnumValue) | |
| 95 | |
| 96 | |
| 97 | |
| 98 // Debugging support | |
| 99 | |
| 100 inline void assert_different_registers( | |
| 101 AbstractRegister a, | |
| 102 AbstractRegister b | |
| 103 ) { | |
| 104 assert( | |
| 105 a != b, | |
| 106 "registers must be different" | |
| 107 ); | |
| 108 } | |
| 109 | |
| 110 | |
| 111 inline void assert_different_registers( | |
| 112 AbstractRegister a, | |
| 113 AbstractRegister b, | |
| 114 AbstractRegister c | |
| 115 ) { | |
| 116 assert( | |
| 117 a != b && a != c | |
| 118 && b != c, | |
| 119 "registers must be different" | |
| 120 ); | |
| 121 } | |
| 122 | |
| 123 | |
| 124 inline void assert_different_registers( | |
| 125 AbstractRegister a, | |
| 126 AbstractRegister b, | |
| 127 AbstractRegister c, | |
| 128 AbstractRegister d | |
| 129 ) { | |
| 130 assert( | |
| 131 a != b && a != c && a != d | |
| 132 && b != c && b != d | |
| 133 && c != d, | |
| 134 "registers must be different" | |
| 135 ); | |
| 136 } | |
| 137 | |
| 138 | |
| 139 inline void assert_different_registers( | |
| 140 AbstractRegister a, | |
| 141 AbstractRegister b, | |
| 142 AbstractRegister c, | |
| 143 AbstractRegister d, | |
| 144 AbstractRegister e | |
| 145 ) { | |
| 146 assert( | |
| 147 a != b && a != c && a != d && a != e | |
| 148 && b != c && b != d && b != e | |
| 149 && c != d && c != e | |
| 150 && d != e, | |
| 151 "registers must be different" | |
| 152 ); | |
| 153 } | |
| 154 | |
| 155 | |
| 156 inline void assert_different_registers( | |
| 157 AbstractRegister a, | |
| 158 AbstractRegister b, | |
| 159 AbstractRegister c, | |
| 160 AbstractRegister d, | |
| 161 AbstractRegister e, | |
| 162 AbstractRegister f | |
| 163 ) { | |
| 164 assert( | |
| 165 a != b && a != c && a != d && a != e && a != f | |
| 166 && b != c && b != d && b != e && b != f | |
| 167 && c != d && c != e && c != f | |
| 168 && d != e && d != f | |
| 169 && e != f, | |
| 170 "registers must be different" | |
| 171 ); | |
| 172 } | |
| 173 | |
| 174 | |
| 175 inline void assert_different_registers( | |
| 176 AbstractRegister a, | |
| 177 AbstractRegister b, | |
| 178 AbstractRegister c, | |
| 179 AbstractRegister d, | |
| 180 AbstractRegister e, | |
| 181 AbstractRegister f, | |
| 182 AbstractRegister g | |
| 183 ) { | |
| 184 assert( | |
| 185 a != b && a != c && a != d && a != e && a != f && a != g | |
| 186 && b != c && b != d && b != e && b != f && b != g | |
| 187 && c != d && c != e && c != f && c != g | |
| 188 && d != e && d != f && d != g | |
| 189 && e != f && e != g | |
| 190 && f != g, | |
| 191 "registers must be different" | |
| 192 ); | |
| 193 } | |
| 194 | |
| 195 | |
| 196 inline void assert_different_registers( | |
| 197 AbstractRegister a, | |
| 198 AbstractRegister b, | |
| 199 AbstractRegister c, | |
| 200 AbstractRegister d, | |
| 201 AbstractRegister e, | |
| 202 AbstractRegister f, | |
| 203 AbstractRegister g, | |
| 204 AbstractRegister h | |
| 205 ) { | |
| 206 assert( | |
| 207 a != b && a != c && a != d && a != e && a != f && a != g && a != h | |
| 208 && b != c && b != d && b != e && b != f && b != g && b != h | |
| 209 && c != d && c != e && c != f && c != g && c != h | |
| 210 && d != e && d != f && d != g && d != h | |
| 211 && e != f && e != g && e != h | |
| 212 && f != g && f != h | |
| 213 && g != h, | |
| 214 "registers must be different" | |
| 215 ); | |
| 216 } | |
| 1972 | 217 |
| 218 #endif // SHARE_VM_ASM_REGISTER_HPP |