1 /*
2 * Copyright (c) 2009, 2015, 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 package jdk.internal.jvmci.amd64;
24
25 import static jdk.internal.jvmci.code.MemoryBarriers.*;
26 import static jdk.internal.jvmci.code.Register.*;
27
28 import java.nio.*;
29 import java.util.*;
30
31 import jdk.internal.jvmci.code.*;
32 import jdk.internal.jvmci.code.Register.RegisterCategory;
33 import jdk.internal.jvmci.meta.*;
34
35 /**
36 * Represents the AMD64 architecture.
37 */
38 public class AMD64 extends Architecture {
39
40 public static final RegisterCategory CPU = new RegisterCategory("CPU");
41
42 // @formatter:off
43
44 // General purpose CPU registers
45 public static final Register rax = new Register(0, 0, "rax", CPU);
46 public static final Register rcx = new Register(1, 1, "rcx", CPU);
47 public static final Register rdx = new Register(2, 2, "rdx", CPU);
48 public static final Register rbx = new Register(3, 3, "rbx", CPU);
49 public static final Register rsp = new Register(4, 4, "rsp", CPU);
50 public static final Register rbp = new Register(5, 5, "rbp", CPU);
51 public static final Register rsi = new Register(6, 6, "rsi", CPU);
52 public static final Register rdi = new Register(7, 7, "rdi", CPU);
53
54 public static final Register r8 = new Register(8, 8, "r8", CPU);
55 public static final Register r9 = new Register(9, 9, "r9", CPU);
56 public static final Register r10 = new Register(10, 10, "r10", CPU);
57 public static final Register r11 = new Register(11, 11, "r11", CPU);
58 public static final Register r12 = new Register(12, 12, "r12", CPU);
59 public static final Register r13 = new Register(13, 13, "r13", CPU);
60 public static final Register r14 = new Register(14, 14, "r14", CPU);
61 public static final Register r15 = new Register(15, 15, "r15", CPU);
62
63 public static final Register[] cpuRegisters = {
64 rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi,
65 r8, r9, r10, r11, r12, r13, r14, r15
66 };
67
68 private static final int XMM_REFERENCE_MAP_SHIFT = 2;
69
70 public static final RegisterCategory XMM = new RegisterCategory("XMM", cpuRegisters.length, XMM_REFERENCE_MAP_SHIFT);
71
72 // XMM registers
73 public static final Register xmm0 = new Register(16, 0, "xmm0", XMM);
74 public static final Register xmm1 = new Register(17, 1, "xmm1", XMM);
75 public static final Register xmm2 = new Register(18, 2, "xmm2", XMM);
76 public static final Register xmm3 = new Register(19, 3, "xmm3", XMM);
77 public static final Register xmm4 = new Register(20, 4, "xmm4", XMM);
78 public static final Register xmm5 = new Register(21, 5, "xmm5", XMM);
79 public static final Register xmm6 = new Register(22, 6, "xmm6", XMM);
80 public static final Register xmm7 = new Register(23, 7, "xmm7", XMM);
81
82 public static final Register xmm8 = new Register(24, 8, "xmm8", XMM);
83 public static final Register xmm9 = new Register(25, 9, "xmm9", XMM);
84 public static final Register xmm10 = new Register(26, 10, "xmm10", XMM);
85 public static final Register xmm11 = new Register(27, 11, "xmm11", XMM);
86 public static final Register xmm12 = new Register(28, 12, "xmm12", XMM);
87 public static final Register xmm13 = new Register(29, 13, "xmm13", XMM);
88 public static final Register xmm14 = new Register(30, 14, "xmm14", XMM);
89 public static final Register xmm15 = new Register(31, 15, "xmm15", XMM);
90
91 public static final Register[] xmmRegisters = {
92 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7,
93 xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15
94 };
95
96 public static final Register[] cpuxmmRegisters = {
97 rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi,
98 r8, r9, r10, r11, r12, r13, r14, r15,
99 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7,
100 xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15
101 };
102
103 /**
104 * Register used to construct an instruction-relative address.
105 */
106 public static final Register rip = new Register(32, -1, "rip", SPECIAL);
107
108 public static final Register[] allRegisters = {
109 rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi,
110 r8, r9, r10, r11, r12, r13, r14, r15,
111 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7,
112 xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15,
113 rip
114 };
115
116 // @formatter:on
117
118 /**
119 * Basic set of CPU features mirroring what is returned from the cpuid instruction.
120 */
121 public static enum CPUFeature {
122 SSE,
123 SSE2,
124 SSE3,
125 SSE4a,
126 SSE4_1,
127 SSE4_2,
128 SSSE3,
129 POPCNT,
130 LZCNT,
131 AVX,
132 AVX2,
133 ERMS,
134 AMD_3DNOW_PREFETCH,
135 AES,
136 BMI1
137 }
138
139 private final EnumSet<CPUFeature> features;
140
141 /**
142 * Set of flags to control code emission.
143 */
144 public static enum Flag {
145 UseCountLeadingZerosInstruction,
146 UseCountTrailingZerosInstruction
147 }
148
149 private final EnumSet<Flag> flags;
150
151 public AMD64(EnumSet<CPUFeature> features, EnumSet<Flag> flags) {
152 super("AMD64", JavaKind.Long, ByteOrder.LITTLE_ENDIAN, true, allRegisters, LOAD_STORE | STORE_STORE, 1, cpuRegisters.length + (xmmRegisters.length << XMM_REFERENCE_MAP_SHIFT), 8);
153 this.features = features;
154 this.flags = flags;
155 assert features.contains(CPUFeature.SSE2) : "minimum config for x64";
156 }
157
158 public EnumSet<CPUFeature> getFeatures() {
159 return features;
160 }
161
162 public EnumSet<Flag> getFlags() {
163 return flags;
164 }
165
166 @Override
167 public PlatformKind getPlatformKind(JavaKind javaKind) {
168 if (javaKind.isObject()) {
169 return getWordKind();
170 } else {
171 return javaKind;
172 }
173 }
174
175 @Override
176 public boolean canStoreValue(RegisterCategory category, PlatformKind platformKind) {
177 if (!(platformKind instanceof JavaKind)) {
178 return false;
179 }
180
181 JavaKind kind = (JavaKind) platformKind;
182 if (category.equals(CPU)) {
183 switch (kind) {
184 case Boolean:
185 case Byte:
186 case Char:
187 case Short:
188 case Int:
189 case Long:
190 return true;
191 }
192 } else if (category.equals(XMM)) {
193 switch (kind) {
194 case Float:
195 case Double:
196 return true;
197 }
198 }
199
200 return false;
201 }
202
203 @Override
204 public PlatformKind getLargestStorableKind(RegisterCategory category) {
205 if (category.equals(CPU)) {
206 return JavaKind.Long;
207 } else if (category.equals(XMM)) {
208 return JavaKind.Double;
209 } else {
210 return JavaKind.Illegal;
211 }
212 }
213 }