--- /dev/null 2015-10-08 07:24:46.000000000 -1000 +++ new/src/jdk.vm.ci/share/classes/jdk.vm.ci.amd64/src/jdk/vm/ci/amd64/AMD64.java 2015-10-08 07:24:46.000000000 -1000 @@ -0,0 +1,231 @@ +/* + * Copyright (c) 2009, 2015, 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.*; +import static jdk.vm.ci.code.Register.*; + +import java.nio.*; +import java.util.*; + +import jdk.vm.ci.code.*; +import jdk.vm.ci.code.Register.RegisterCategory; +import jdk.vm.ci.meta.*; + +/** + * Represents the AMD64 architecture. + */ +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[] cpuRegisters = { + rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi, + r8, r9, r10, r11, r12, r13, r14, r15 + }; + + private static final int XMM_REFERENCE_MAP_SHIFT = 2; + + public static final RegisterCategory XMM = new RegisterCategory("XMM", cpuRegisters.length, XMM_REFERENCE_MAP_SHIFT); + + // XMM registers + public static final Register xmm0 = new Register(16, 0, "xmm0", XMM); + public static final Register xmm1 = new Register(17, 1, "xmm1", XMM); + public static final Register xmm2 = new Register(18, 2, "xmm2", XMM); + public static final Register xmm3 = new Register(19, 3, "xmm3", XMM); + public static final Register xmm4 = new Register(20, 4, "xmm4", XMM); + public static final Register xmm5 = new Register(21, 5, "xmm5", XMM); + public static final Register xmm6 = new Register(22, 6, "xmm6", XMM); + public static final Register xmm7 = new Register(23, 7, "xmm7", XMM); + + public static final Register xmm8 = new Register(24, 8, "xmm8", XMM); + public static final Register xmm9 = new Register(25, 9, "xmm9", XMM); + public static final Register xmm10 = new Register(26, 10, "xmm10", XMM); + public static final Register xmm11 = new Register(27, 11, "xmm11", XMM); + public static final Register xmm12 = new Register(28, 12, "xmm12", XMM); + public static final Register xmm13 = new Register(29, 13, "xmm13", XMM); + public static final Register xmm14 = new Register(30, 14, "xmm14", XMM); + public static final Register xmm15 = new Register(31, 15, "xmm15", XMM); + + public static final Register[] xmmRegisters = { + xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, + xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15 + }; + + public static final Register[] cpuxmmRegisters = { + 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 + }; + + /** + * Register used to construct an instruction-relative address. + */ + public static final Register rip = new Register(32, -1, "rip", SPECIAL); + + public static final Register[] allRegisters = { + 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, + rip + }; + + // @formatter:on + + /** + * Basic set of CPU features mirroring what is returned from the cpuid instruction. See: + * {@code VM_Version::cpuFeatureFlags}. + */ + public static enum CPUFeature { + CX8, + CMOV, + FXSR, + HT, + MMX, + AMD_3DNOW_PREFETCH, + SSE, + SSE2, + SSE3, + SSSE3, + SSE4A, + SSE4_1, + SSE4_2, + POPCNT, + LZCNT, + TSC, + TSCINV, + AVX, + AVX2, + AES, + ERMS, + CLMUL, + BMI1, + BMI2, + RTM, + ADX, + AVX512F, + AVX512DQ, + AVX512PF, + AVX512ER, + AVX512CD, + AVX512BW + } + + private final EnumSet features; + + /** + * Set of flags to control code emission. + */ + public static enum Flag { + UseCountLeadingZerosInstruction, + UseCountTrailingZerosInstruction + } + + private final EnumSet flags; + + public AMD64(EnumSet features, EnumSet flags) { + super("AMD64", JavaKind.Long, ByteOrder.LITTLE_ENDIAN, true, allRegisters, LOAD_STORE | STORE_STORE, 1, cpuRegisters.length + (xmmRegisters.length << XMM_REFERENCE_MAP_SHIFT), 8); + this.features = features; + this.flags = flags; + assert features.contains(CPUFeature.SSE2) : "minimum config for x64"; + } + + public EnumSet getFeatures() { + return features; + } + + public EnumSet getFlags() { + return flags; + } + + @Override + public PlatformKind getPlatformKind(JavaKind javaKind) { + if (javaKind.isObject()) { + return getWordKind(); + } else { + return javaKind; + } + } + + @Override + public boolean canStoreValue(RegisterCategory category, PlatformKind platformKind) { + if (!(platformKind instanceof JavaKind)) { + return false; + } + + JavaKind kind = (JavaKind) platformKind; + if (category.equals(CPU)) { + switch (kind) { + case Boolean: + case Byte: + case Char: + case Short: + case Int: + case Long: + return true; + } + } else if (category.equals(XMM)) { + switch (kind) { + case Float: + case Double: + return true; + } + } + + return false; + } + + @Override + public PlatformKind getLargestStorableKind(RegisterCategory category) { + if (category.equals(CPU)) { + return JavaKind.Long; + } else if (category.equals(XMM)) { + return JavaKind.Double; + } else { + return JavaKind.Illegal; + } + } +}