/* * Copyright (c) 2009, 2025, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package jdk.vm.ci.amd64; import static jdk.vm.ci.code.MemoryBarriers.LOAD_LOAD; import static jdk.vm.ci.code.MemoryBarriers.LOAD_STORE; import static jdk.vm.ci.code.MemoryBarriers.STORE_STORE; import static jdk.vm.ci.code.Register.SPECIAL; import java.nio.ByteOrder; import java.util.EnumSet; import java.util.List; import jdk.vm.ci.code.Architecture; import jdk.vm.ci.code.CPUFeatureName; import jdk.vm.ci.code.Register; import jdk.vm.ci.code.Register.RegisterCategory; import jdk.vm.ci.meta.JavaKind; import jdk.vm.ci.meta.PlatformKind; /** * Represents the AMD64 architecture. * * The value returned by {@code Architecture#getName} for an instance of this class is {@code "AMD64"}. */ public class AMD64 extends Architecture { public static final RegisterCategory CPU = new RegisterCategory("CPU"); // @formatter:off // General purpose CPU registers public static final Register rax = new Register(0, 0, "rax", CPU); public static final Register rcx = new Register(1, 1, "rcx", CPU); public static final Register rdx = new Register(2, 2, "rdx", CPU); public static final Register rbx = new Register(3, 3, "rbx", CPU); public static final Register rsp = new Register(4, 4, "rsp", CPU); public static final Register rbp = new Register(5, 5, "rbp", CPU); public static final Register rsi = new Register(6, 6, "rsi", CPU); public static final Register rdi = new Register(7, 7, "rdi", CPU); public static final Register r8 = new Register(8, 8, "r8", CPU); public static final Register r9 = new Register(9, 9, "r9", CPU); public static final Register r10 = new Register(10, 10, "r10", CPU); public static final Register r11 = new Register(11, 11, "r11", CPU); public static final Register r12 = new Register(12, 12, "r12", CPU); public static final Register r13 = new Register(13, 13, "r13", CPU); public static final Register r14 = new Register(14, 14, "r14", CPU); public static final Register r15 = new Register(15, 15, "r15", CPU); public static final Register r16 = new Register(16, 16, "r16", CPU); public static final Register r17 = new Register(17, 17, "r17", CPU); public static final Register r18 = new Register(18, 18, "r18", CPU); public static final Register r19 = new Register(19, 19, "r19", CPU); public static final Register r20 = new Register(20, 20, "r20", CPU); public static final Register r21 = new Register(21, 21, "r21", CPU); public static final Register r22 = new Register(22, 22, "r22", CPU); public static final Register r23 = new Register(23, 23, "r23", CPU); public static final Register r24 = new Register(24, 24, "r24", CPU); public static final Register r25 = new Register(25, 25, "r25", CPU); public static final Register r26 = new Register(26, 26, "r26", CPU); public static final Register r27 = new Register(27, 27, "r27", CPU); public static final Register r28 = new Register(28, 28, "r28", CPU); public static final Register r29 = new Register(29, 29, "r29", CPU); public static final Register r30 = new Register(30, 30, "r30", CPU); public static final Register r31 = new Register(31, 31, "r31", CPU); // The set of common CPU registers available on all x64 platforms. public static final List cpuRegisters = List.of( rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi, r8, r9, r10, r11, r12, r13, r14, r15 ); public static final List cpuRegistersAPX = List.of( rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi, r8, r9, r10, r11, r12, r13, r14, r15, r16, r17, r18, r19, r20, r21, r22, r23, r24, r25, r26, r27, r28, r29, r30, r31 ); public static final RegisterCategory XMM = new RegisterCategory("XMM"); // XMM registers public static final Register xmm0 = new Register(32, 0, "xmm0", XMM); public static final Register xmm1 = new Register(33, 1, "xmm1", XMM); public static final Register xmm2 = new Register(34, 2, "xmm2", XMM); public static final Register xmm3 = new Register(35, 3, "xmm3", XMM); public static final Register xmm4 = new Register(36, 4, "xmm4", XMM); public static final Register xmm5 = new Register(37, 5, "xmm5", XMM); public static final Register xmm6 = new Register(38, 6, "xmm6", XMM); public static final Register xmm7 = new Register(39, 7, "xmm7", XMM); public static final Register xmm8 = new Register(40, 8, "xmm8", XMM); public static final Register xmm9 = new Register(41, 9, "xmm9", XMM); public static final Register xmm10 = new Register(42, 10, "xmm10", XMM); public static final Register xmm11 = new Register(43, 11, "xmm11", XMM); public static final Register xmm12 = new Register(44, 12, "xmm12", XMM); public static final Register xmm13 = new Register(45, 13, "xmm13", XMM); public static final Register xmm14 = new Register(46, 14, "xmm14", XMM); public static final Register xmm15 = new Register(47, 15, "xmm15", XMM); public static final Register xmm16 = new Register(48, 16, "xmm16", XMM); public static final Register xmm17 = new Register(49, 17, "xmm17", XMM); public static final Register xmm18 = new Register(50, 18, "xmm18", XMM); public static final Register xmm19 = new Register(51, 19, "xmm19", XMM); public static final Register xmm20 = new Register(52, 20, "xmm20", XMM); public static final Register xmm21 = new Register(53, 21, "xmm21", XMM); public static final Register xmm22 = new Register(54, 22, "xmm22", XMM); public static final Register xmm23 = new Register(55, 23, "xmm23", XMM); public static final Register xmm24 = new Register(56, 24, "xmm24", XMM); public static final Register xmm25 = new Register(57, 25, "xmm25", XMM); public static final Register xmm26 = new Register(58, 26, "xmm26", XMM); public static final Register xmm27 = new Register(59, 27, "xmm27", XMM); public static final Register xmm28 = new Register(60, 28, "xmm28", XMM); public static final Register xmm29 = new Register(61, 29, "xmm29", XMM); public static final Register xmm30 = new Register(62, 30, "xmm30", XMM); public static final Register xmm31 = new Register(63, 31, "xmm31", XMM); public static final List xmmRegistersSSE = List.of( xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15 ); public static final List xmmRegistersAVX512 = List.of( xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15, xmm16, xmm17, xmm18, xmm19, xmm20, xmm21, xmm22, xmm23, xmm24, xmm25, xmm26, xmm27, xmm28, xmm29, xmm30, xmm31 ); public static final RegisterCategory MASK = new RegisterCategory("MASK", false); public static final Register k0 = new Register(64, 0, "k0", MASK); public static final Register k1 = new Register(65, 1, "k1", MASK); public static final Register k2 = new Register(66, 2, "k2", MASK); public static final Register k3 = new Register(67, 3, "k3", MASK); public static final Register k4 = new Register(68, 4, "k4", MASK); public static final Register k5 = new Register(69, 5, "k5", MASK); public static final Register k6 = new Register(70, 6, "k6", MASK); public static final Register k7 = new Register(71, 7, "k7", MASK); public static final List valueRegistersSSE = List.of( rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi, r8, r9, r10, r11, r12, r13, r14, r15, xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15 ); public static final List valueRegistersAVX512 = List.of( rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi, r8, r9, r10, r11, r12, r13, r14, r15, xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15, xmm16, xmm17, xmm18, xmm19, xmm20, xmm21, xmm22, xmm23, xmm24, xmm25, xmm26, xmm27, xmm28, xmm29, xmm30, xmm31, k0, k1, k2, k3, k4, k5, k6, k7 ); public static final List valueRegistersSSEAndAPX = List.of( rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi, r8, r9, r10, r11, r12, r13, r14, r15, r16, r17, r18, r19, r20, r21, r22, r23, r24, r25, r26, r27, r28, r29, r30, r31, xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15 ); public static final List valueRegistersAVX512AndAPX = List.of( rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi, r8, r9, r10, r11, r12, r13, r14, r15, r16, r17, r18, r19, r20, r21, r22, r23, r24, r25, r26, r27, r28, r29, r30, r31, xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15, xmm16, xmm17, xmm18, xmm19, xmm20, xmm21, xmm22, xmm23, xmm24, xmm25, xmm26, xmm27, xmm28, xmm29, xmm30, xmm31, k0, k1, k2, k3, k4, k5, k6, k7 ); /** * Register used to construct an instruction-relative address. */ public static final Register rip = new Register(72, -1, "rip", SPECIAL); public static final List allRegisters = List.of( rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi, r8, r9, r10, r11, r12, r13, r14, r15, r16, r17, r18, r19, r20, r21, r22, r23, r24, r25, r26, r27, r28, r29, r30, r31, xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15, xmm16, xmm17, xmm18, xmm19, xmm20, xmm21, xmm22, xmm23, xmm24, xmm25, xmm26, xmm27, xmm28, xmm29, xmm30, xmm31, k0, k1, k2, k3, k4, k5, k6, k7, rip ); // @formatter:on /** * Basic set of CPU features mirroring what is returned from the cpuid instruction. See: * {@code VM_Version::cpuFeatureFlags}. */ public enum CPUFeature implements CPUFeatureName { CX8, CMOV, FXSR, HT, MMX, AMD_3DNOW_PREFETCH, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4_1, SSE4_2, POPCNT, LZCNT, TSC, TSCINV, TSCINV_BIT, AVX, AVX2, AES, ERMS, CLMUL, BMI1, BMI2, RTM, ADX, AVX512F, AVX512DQ, AVX512PF, AVX512ER, AVX512CD, AVX512BW, AVX512VL, SHA, FMA, VZEROUPPER, AVX512_VPOPCNTDQ, AVX512_VPCLMULQDQ, AVX512_VAES, AVX512_VNNI, FLUSH, FLUSHOPT, CLWB, AVX512_VBMI2, AVX512_VBMI, HV, SERIALIZE, RDTSCP, RDPID, FSRM, GFNI, AVX512_BITALG, F16C, PKU, OSPKE, CET_IBT, CET_SS, AVX512_IFMA, AVX_IFMA, APX_F, SHA512, AVX512_FP16, AVX10_1, AVX10_2 } private final EnumSet features; private final AMD64Kind largestKind; private final AMD64Kind largestMaskKind; public AMD64(EnumSet features) { super("AMD64", AMD64Kind.QWORD, ByteOrder.LITTLE_ENDIAN, true, allRegisters, LOAD_LOAD | LOAD_STORE | STORE_STORE, 1, 8); this.features = features; assert features.contains(CPUFeature.SSE2) : "minimum config for x64"; if (features.contains(CPUFeature.AVX512F)) { largestKind = AMD64Kind.V512_QWORD; if (features.contains(CPUFeature.AVX512BW)) { largestMaskKind = AMD64Kind.MASK64; } else { largestMaskKind = AMD64Kind.MASK16; } } else if (features.contains(CPUFeature.AVX)) { largestKind = AMD64Kind.V256_QWORD; largestMaskKind = null; } else { largestKind = AMD64Kind.V128_QWORD; largestMaskKind = null; } } @Override public EnumSet getFeatures() { return features; } @Override public List getAvailableValueRegisters() { if (features.contains(CPUFeature.APX_F)) { if (features.contains(CPUFeature.AVX512F)) { return valueRegistersAVX512AndAPX; } else { return valueRegistersSSEAndAPX; } } else if (features.contains(CPUFeature.AVX512F)) { return valueRegistersAVX512; } else { return valueRegistersSSE; } } @Override public PlatformKind getPlatformKind(JavaKind javaKind) { switch (javaKind) { case Boolean: case Byte: return AMD64Kind.BYTE; case Short: case Char: return AMD64Kind.WORD; case Int: return AMD64Kind.DWORD; case Long: case Object: return AMD64Kind.QWORD; case Float: return AMD64Kind.SINGLE; case Double: return AMD64Kind.DOUBLE; default: return null; } } @Override public boolean canStoreValue(RegisterCategory category, PlatformKind platformKind) { AMD64Kind kind = (AMD64Kind) platformKind; if (kind.isInteger()) { return category.equals(CPU); } else if (kind.isXMM()) { return category.equals(XMM); } else { assert kind.isMask(); return category.equals(MASK); } } @Override public AMD64Kind getLargestStorableKind(RegisterCategory category) { if (category.equals(CPU)) { return AMD64Kind.QWORD; } else if (category.equals(XMM)) { return largestKind; } else if (category.equals(MASK)) { return largestMaskKind; } else { return null; } } }