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.vm.ci.amd64;
24
25 import static jdk.vm.ci.code.MemoryBarriers.LOAD_STORE;
26 import static jdk.vm.ci.code.MemoryBarriers.STORE_STORE;
27 import static jdk.vm.ci.code.Register.SPECIAL;
28
29 import java.nio.ByteOrder;
30 import java.util.EnumSet;
31
32 import jdk.vm.ci.code.Architecture;
33 import jdk.vm.ci.code.Register;
34 import jdk.vm.ci.code.Register.RegisterCategory;
35 import jdk.vm.ci.meta.JavaKind;
36 import jdk.vm.ci.meta.PlatformKind;
37
38 /**
39 * Represents the AMD64 architecture.
40 */
41 public class AMD64 extends Architecture {
42
43 public static final RegisterCategory CPU = new RegisterCategory("CPU");
44
45 // @formatter:off
46
47 // General purpose CPU registers
48 public static final Register rax = new Register(0, 0, "rax", CPU);
49 public static final Register rcx = new Register(1, 1, "rcx", CPU);
50 public static final Register rdx = new Register(2, 2, "rdx", CPU);
51 public static final Register rbx = new Register(3, 3, "rbx", CPU);
52 public static final Register rsp = new Register(4, 4, "rsp", CPU);
53 public static final Register rbp = new Register(5, 5, "rbp", CPU);
54 public static final Register rsi = new Register(6, 6, "rsi", CPU);
55 public static final Register rdi = new Register(7, 7, "rdi", CPU);
56
57 public static final Register r8 = new Register(8, 8, "r8", CPU);
58 public static final Register r9 = new Register(9, 9, "r9", CPU);
59 public static final Register r10 = new Register(10, 10, "r10", CPU);
60 public static final Register r11 = new Register(11, 11, "r11", CPU);
61 public static final Register r12 = new Register(12, 12, "r12", CPU);
62 public static final Register r13 = new Register(13, 13, "r13", CPU);
63 public static final Register r14 = new Register(14, 14, "r14", CPU);
64 public static final Register r15 = new Register(15, 15, "r15", CPU);
65
66 public static final Register[] cpuRegisters = {
67 rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi,
68 r8, r9, r10, r11, r12, r13, r14, r15
69 };
70
71 public static final RegisterCategory XMM = new RegisterCategory("XMM");
72
73 // XMM registers
74 public static final Register xmm0 = new Register(16, 0, "xmm0", XMM);
75 public static final Register xmm1 = new Register(17, 1, "xmm1", XMM);
76 public static final Register xmm2 = new Register(18, 2, "xmm2", XMM);
77 public static final Register xmm3 = new Register(19, 3, "xmm3", XMM);
78 public static final Register xmm4 = new Register(20, 4, "xmm4", XMM);
79 public static final Register xmm5 = new Register(21, 5, "xmm5", XMM);
80 public static final Register xmm6 = new Register(22, 6, "xmm6", XMM);
81 public static final Register xmm7 = new Register(23, 7, "xmm7", XMM);
82
83 public static final Register xmm8 = new Register(24, 8, "xmm8", XMM);
84 public static final Register xmm9 = new Register(25, 9, "xmm9", XMM);
85 public static final Register xmm10 = new Register(26, 10, "xmm10", XMM);
86 public static final Register xmm11 = new Register(27, 11, "xmm11", XMM);
87 public static final Register xmm12 = new Register(28, 12, "xmm12", XMM);
88 public static final Register xmm13 = new Register(29, 13, "xmm13", XMM);
89 public static final Register xmm14 = new Register(30, 14, "xmm14", XMM);
90 public static final Register xmm15 = new Register(31, 15, "xmm15", XMM);
91
92 public static final Register xmm16 = new Register(32, 16, "xmm16", XMM);
93 public static final Register xmm17 = new Register(33, 17, "xmm17", XMM);
94 public static final Register xmm18 = new Register(34, 18, "xmm18", XMM);
95 public static final Register xmm19 = new Register(35, 19, "xmm19", XMM);
96 public static final Register xmm20 = new Register(36, 20, "xmm20", XMM);
97 public static final Register xmm21 = new Register(37, 21, "xmm21", XMM);
98 public static final Register xmm22 = new Register(38, 22, "xmm22", XMM);
99 public static final Register xmm23 = new Register(39, 23, "xmm23", XMM);
100
101 public static final Register xmm24 = new Register(40, 24, "xmm24", XMM);
102 public static final Register xmm25 = new Register(41, 25, "xmm25", XMM);
103 public static final Register xmm26 = new Register(42, 26, "xmm26", XMM);
104 public static final Register xmm27 = new Register(43, 27, "xmm27", XMM);
105 public static final Register xmm28 = new Register(44, 28, "xmm28", XMM);
106 public static final Register xmm29 = new Register(45, 29, "xmm29", XMM);
107 public static final Register xmm30 = new Register(46, 30, "xmm30", XMM);
108 public static final Register xmm31 = new Register(47, 31, "xmm31", XMM);
109
110 public static final Register[] xmmRegistersSSE = {
111 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7,
112 xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15
113 };
114
115 public static final Register[] xmmRegistersAVX512 = {
116 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7,
117 xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15,
118 xmm16, xmm17, xmm18, xmm19, xmm20, xmm21, xmm22, xmm23,
119 xmm24, xmm25, xmm26, xmm27, xmm28, xmm29, xmm30, xmm31
120 };
121
122 public static final RegisterCategory MASK = new RegisterCategory("MASK", false);
123
124 public static final Register k0 = new Register(48, 0, "k0", MASK);
125 public static final Register k1 = new Register(49, 1, "k1", MASK);
126 public static final Register k2 = new Register(50, 2, "k2", MASK);
127 public static final Register k3 = new Register(51, 3, "k3", MASK);
128 public static final Register k4 = new Register(52, 4, "k4", MASK);
129 public static final Register k5 = new Register(53, 5, "k5", MASK);
130 public static final Register k6 = new Register(54, 6, "k6", MASK);
131 public static final Register k7 = new Register(55, 7, "k7", MASK);
132
133 public static final Register[] valueRegistersSSE = {
134 rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi,
135 r8, r9, r10, r11, r12, r13, r14, r15,
136 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7,
137 xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15
138 };
139
140 public static final Register[] valueRegistersAVX512 = {
141 rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi,
142 r8, r9, r10, r11, r12, r13, r14, r15,
143 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7,
144 xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15,
145 xmm16, xmm17, xmm18, xmm19, xmm20, xmm21, xmm22, xmm23,
146 xmm24, xmm25, xmm26, xmm27, xmm28, xmm29, xmm30, xmm31,
147 k0, k1, k2, k3, k4, k5, k6, k7
148 };
149
150 /**
151 * Register used to construct an instruction-relative address.
152 */
153 public static final Register rip = new Register(56, -1, "rip", SPECIAL);
154
155 public static final Register[] allRegisters = {
156 rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi,
157 r8, r9, r10, r11, r12, r13, r14, r15,
158 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7,
159 xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15,
160 xmm16, xmm17, xmm18, xmm19, xmm20, xmm21, xmm22, xmm23,
161 xmm24, xmm25, xmm26, xmm27, xmm28, xmm29, xmm30, xmm31,
162 k0, k1, k2, k3, k4, k5, k6, k7,
163 rip
164 };
165
166 // @formatter:on
167
168 /**
169 * Basic set of CPU features mirroring what is returned from the cpuid instruction. See:
170 * {@code VM_Version::cpuFeatureFlags}.
171 */
172 public static enum CPUFeature {
173 CX8,
174 CMOV,
175 FXSR,
176 HT,
177 MMX,
178 AMD_3DNOW_PREFETCH,
179 SSE,
180 SSE2,
181 SSE3,
182 SSSE3,
183 SSE4A,
184 SSE4_1,
185 SSE4_2,
186 POPCNT,
187 LZCNT,
188 TSC,
189 TSCINV,
190 AVX,
191 AVX2,
192 AES,
193 ERMS,
194 CLMUL,
195 BMI1,
196 BMI2,
197 RTM,
198 ADX,
199 AVX512F,
200 AVX512DQ,
201 AVX512PF,
202 AVX512ER,
203 AVX512CD,
204 AVX512BW,
205 AVX512VL
206 }
207
208 private final EnumSet<CPUFeature> features;
209
210 /**
211 * Set of flags to control code emission.
212 */
213 public static enum Flag {
214 UseCountLeadingZerosInstruction,
215 UseCountTrailingZerosInstruction
216 }
217
218 private final EnumSet<Flag> flags;
219
220 private final AMD64Kind largestKind;
221
222 public AMD64(EnumSet<CPUFeature> features, EnumSet<Flag> flags) {
223 super("AMD64", AMD64Kind.QWORD, ByteOrder.LITTLE_ENDIAN, true, allRegisters, LOAD_STORE | STORE_STORE, 1, 8);
224 this.features = features;
225 this.flags = flags;
226 assert features.contains(CPUFeature.SSE2) : "minimum config for x64";
227
228 if (features.contains(CPUFeature.AVX512F)) {
229 largestKind = AMD64Kind.V512_QWORD;
230 } else if (features.contains(CPUFeature.AVX)) {
231 largestKind = AMD64Kind.V256_QWORD;
232 } else {
233 largestKind = AMD64Kind.V128_QWORD;
234 }
235 }
236
237 public EnumSet<CPUFeature> getFeatures() {
238 return features;
239 }
240
241 public EnumSet<Flag> getFlags() {
242 return flags;
243 }
244
245 @Override
246 public Register[] getAvailableValueRegisters() {
247 if (features.contains(CPUFeature.AVX512F)) {
248 return valueRegistersAVX512;
249 } else {
250 return valueRegistersSSE;
251 }
252 }
253
254 @Override
255 public PlatformKind getPlatformKind(JavaKind javaKind) {
256 switch (javaKind) {
257 case Boolean:
258 case Byte:
259 return AMD64Kind.BYTE;
260 case Short:
261 case Char:
262 return AMD64Kind.WORD;
263 case Int:
264 return AMD64Kind.DWORD;
265 case Long:
266 case Object:
267 return AMD64Kind.QWORD;
268 case Float:
269 return AMD64Kind.SINGLE;
270 case Double:
271 return AMD64Kind.DOUBLE;
272 default:
273 return null;
274 }
275 }
276
277 @Override
278 public boolean canStoreValue(RegisterCategory category, PlatformKind platformKind) {
279 AMD64Kind kind = (AMD64Kind) platformKind;
280 if (kind.isInteger()) {
281 return category.equals(CPU);
282 } else if (kind.isXMM()) {
283 return category.equals(XMM);
284 } else {
285 assert kind.isMask();
286 return category.equals(MASK);
287 }
288 }
289
290 @Override
291 public AMD64Kind getLargestStorableKind(RegisterCategory category) {
292 if (category.equals(CPU)) {
293 return AMD64Kind.QWORD;
294 } else if (category.equals(XMM)) {
295 return largestKind;
296 } else if (category.equals(MASK)) {
297 return AMD64Kind.MASK64;
298 } else {
299 return null;
300 }
301 }
302 }