1/* 2 * Copyright (c) 2000, 2016, 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 CPU_X86_VM_REGISTER_X86_HPP 26#define CPU_X86_VM_REGISTER_X86_HPP 27 28#include "asm/register.hpp" 29 30class VMRegImpl; 31typedef VMRegImpl* VMReg; 32 33// Use Register as shortcut 34class RegisterImpl; 35typedef RegisterImpl* Register; 36 37 38// The implementation of integer registers for the ia32 architecture 39inline Register as_Register(int encoding) { 40 return (Register)(intptr_t) encoding; 41} 42 43class RegisterImpl: public AbstractRegisterImpl { 44 public: 45 enum { 46#ifndef AMD64 47 number_of_registers = 8, 48 number_of_byte_registers = 4, 49 max_slots_per_register = 1 50#else 51 number_of_registers = 16, 52 number_of_byte_registers = 16, 53 max_slots_per_register = 1 54#endif // AMD64 55 }; 56 57 // derived registers, offsets, and addresses 58 Register successor() const { return as_Register(encoding() + 1); } 59 60 // construction 61 inline friend Register as_Register(int encoding); 62 63 inline VMReg as_VMReg(); 64 65 // accessors 66 int encoding() const { assert(is_valid(), "invalid register"); return (intptr_t)this; } 67 bool is_valid() const { return 0 <= (intptr_t)this && (intptr_t)this < number_of_registers; } 68 bool has_byte_register() const { return 0 <= (intptr_t)this && (intptr_t)this < number_of_byte_registers; } 69 const char* name() const; 70}; 71 72// The integer registers of the ia32/amd64 architecture 73 74CONSTANT_REGISTER_DECLARATION(Register, noreg, (-1)); 75 76 77CONSTANT_REGISTER_DECLARATION(Register, rax, (0)); 78CONSTANT_REGISTER_DECLARATION(Register, rcx, (1)); 79CONSTANT_REGISTER_DECLARATION(Register, rdx, (2)); 80CONSTANT_REGISTER_DECLARATION(Register, rbx, (3)); 81CONSTANT_REGISTER_DECLARATION(Register, rsp, (4)); 82CONSTANT_REGISTER_DECLARATION(Register, rbp, (5)); 83CONSTANT_REGISTER_DECLARATION(Register, rsi, (6)); 84CONSTANT_REGISTER_DECLARATION(Register, rdi, (7)); 85#ifdef AMD64 86CONSTANT_REGISTER_DECLARATION(Register, r8, (8)); 87CONSTANT_REGISTER_DECLARATION(Register, r9, (9)); 88CONSTANT_REGISTER_DECLARATION(Register, r10, (10)); 89CONSTANT_REGISTER_DECLARATION(Register, r11, (11)); 90CONSTANT_REGISTER_DECLARATION(Register, r12, (12)); 91CONSTANT_REGISTER_DECLARATION(Register, r13, (13)); 92CONSTANT_REGISTER_DECLARATION(Register, r14, (14)); 93CONSTANT_REGISTER_DECLARATION(Register, r15, (15)); 94#endif // AMD64 95 96// Use FloatRegister as shortcut 97class FloatRegisterImpl; 98typedef FloatRegisterImpl* FloatRegister; 99 100inline FloatRegister as_FloatRegister(int encoding) { 101 return (FloatRegister)(intptr_t) encoding; 102} 103 104// The implementation of floating point registers for the ia32 architecture 105class FloatRegisterImpl: public AbstractRegisterImpl { 106 public: 107 enum { 108 number_of_registers = 8 109 }; 110 111 // construction 112 inline friend FloatRegister as_FloatRegister(int encoding); 113 114 inline VMReg as_VMReg(); 115 116 // derived registers, offsets, and addresses 117 118 FloatRegister successor() const { return as_FloatRegister(encoding() + 1); } 119 120 // accessors 121 int encoding() const { assert(is_valid(), "invalid register"); return (intptr_t)this; } 122 bool is_valid() const { return 0 <= (intptr_t)this && (intptr_t)this < number_of_registers; } 123 const char* name() const; 124 125}; 126 127CONSTANT_REGISTER_DECLARATION(FloatRegister, fnoreg, (-1)); 128 129// Use XMMRegister as shortcut 130class XMMRegisterImpl; 131typedef XMMRegisterImpl* XMMRegister; 132 133// Use MMXRegister as shortcut 134class MMXRegisterImpl; 135typedef MMXRegisterImpl* MMXRegister; 136 137inline XMMRegister as_XMMRegister(int encoding) { 138 return (XMMRegister)(intptr_t)encoding; 139} 140 141inline MMXRegister as_MMXRegister(int encoding) { 142 return (MMXRegister)(intptr_t)encoding; 143} 144 145// The implementation of XMM registers for the IA32 architecture 146class XMMRegisterImpl: public AbstractRegisterImpl { 147 public: 148 enum { 149#ifndef AMD64 150 number_of_registers = 8, 151 max_slots_per_register = 16 // 512-bit 152#else 153 number_of_registers = 32, 154 max_slots_per_register = 16 // 512-bit 155#endif // AMD64 156 }; 157 158 // construction 159 friend XMMRegister as_XMMRegister(int encoding); 160 161 inline VMReg as_VMReg(); 162 163 // derived registers, offsets, and addresses 164 XMMRegister successor() const { return as_XMMRegister(encoding() + 1); } 165 166 // accessors 167 int encoding() const { assert(is_valid(), "invalid register (%d)", (int)(intptr_t)this ); return (intptr_t)this; } 168 bool is_valid() const { return 0 <= (intptr_t)this && (intptr_t)this < number_of_registers; } 169 const char* name() const; 170 const char* sub_word_name(int offset) const; 171}; 172 173 174// The XMM registers, for P3 and up chips 175CONSTANT_REGISTER_DECLARATION(XMMRegister, xnoreg , (-1)); 176CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm0 , ( 0)); 177CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm1 , ( 1)); 178CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm2 , ( 2)); 179CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm3 , ( 3)); 180CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm4 , ( 4)); 181CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm5 , ( 5)); 182CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm6 , ( 6)); 183CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm7 , ( 7)); 184#ifdef AMD64 185CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm8, (8)); 186CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm9, (9)); 187CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm10, (10)); 188CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm11, (11)); 189CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm12, (12)); 190CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm13, (13)); 191CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm14, (14)); 192CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm15, (15)); 193CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm16, (16)); 194CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm17, (17)); 195CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm18, (18)); 196CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm19, (19)); 197CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm20, (20)); 198CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm21, (21)); 199CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm22, (22)); 200CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm23, (23)); 201CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm24, (24)); 202CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm25, (25)); 203CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm26, (26)); 204CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm27, (27)); 205CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm28, (28)); 206CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm29, (29)); 207CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm30, (30)); 208CONSTANT_REGISTER_DECLARATION(XMMRegister, xmm31, (31)); 209#endif // AMD64 210 211// Only used by the 32bit stubGenerator. These can't be described by vmreg and hence 212// can't be described in oopMaps and therefore can't be used by the compilers (at least 213// were deopt might wan't to see them). 214 215// The MMX registers, for P3 and up chips 216CONSTANT_REGISTER_DECLARATION(MMXRegister, mnoreg , (-1)); 217CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx0 , ( 0)); 218CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx1 , ( 1)); 219CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx2 , ( 2)); 220CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx3 , ( 3)); 221CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx4 , ( 4)); 222CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx5 , ( 5)); 223CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx6 , ( 6)); 224CONSTANT_REGISTER_DECLARATION(MMXRegister, mmx7 , ( 7)); 225 226// Use XMMRegister as shortcut 227class KRegisterImpl; 228typedef KRegisterImpl* KRegister; 229 230inline KRegister as_KRegister(int encoding) { 231 return (KRegister)(intptr_t)encoding; 232} 233 234// The implementation of XMM registers for the IA32 architecture 235class KRegisterImpl : public AbstractRegisterImpl { 236public: 237 enum { 238 number_of_registers = 8, 239 max_slots_per_register = 1 240 }; 241 242 // construction 243 friend KRegister as_KRegister(int encoding); 244 245 inline VMReg as_VMReg(); 246 247 // derived registers, offsets, and addresses 248 KRegister successor() const { return as_KRegister(encoding() + 1); } 249 250 // accessors 251 int encoding() const { assert(is_valid(), "invalid register (%d)", (int)(intptr_t)this); return (intptr_t)this; } 252 bool is_valid() const { return 0 <= (intptr_t)this && (intptr_t)this < number_of_registers; } 253 const char* name() const; 254}; 255 256// The Mask registers, for AVX3 enabled and up chips 257CONSTANT_REGISTER_DECLARATION(KRegister, knoreg, (-1)); 258CONSTANT_REGISTER_DECLARATION(KRegister, k0, (0)); 259CONSTANT_REGISTER_DECLARATION(KRegister, k1, (1)); 260CONSTANT_REGISTER_DECLARATION(KRegister, k2, (2)); 261CONSTANT_REGISTER_DECLARATION(KRegister, k3, (3)); 262CONSTANT_REGISTER_DECLARATION(KRegister, k4, (4)); 263CONSTANT_REGISTER_DECLARATION(KRegister, k5, (5)); 264CONSTANT_REGISTER_DECLARATION(KRegister, k6, (6)); 265CONSTANT_REGISTER_DECLARATION(KRegister, k7, (7)); 266 267// Need to know the total number of registers of all sorts for SharedInfo. 268// Define a class that exports it. 269class ConcreteRegisterImpl : public AbstractRegisterImpl { 270 public: 271 enum { 272 // A big enough number for C2: all the registers plus flags 273 // This number must be large enough to cover REG_COUNT (defined by c2) registers. 274 // There is no requirement that any ordering here matches any ordering c2 gives 275 // it's optoregs. 276 277 number_of_registers = RegisterImpl::number_of_registers + 278#ifdef AMD64 279 RegisterImpl::number_of_registers + // "H" half of a 64bit register 280#endif // AMD64 281 2 * FloatRegisterImpl::number_of_registers + 282 XMMRegisterImpl::max_slots_per_register * XMMRegisterImpl::number_of_registers + 283 KRegisterImpl::number_of_registers + // mask registers 284 1 // eflags 285 }; 286 287 static const int max_gpr; 288 static const int max_fpr; 289 static const int max_xmm; 290 static const int max_kpr; 291 292}; 293 294#endif // CPU_X86_VM_REGISTER_X86_HPP 295