1 /*
   2  * Copyright (c) 2012, 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.hotspot.amd64;
  24 
  25 import static jdk.vm.ci.inittimer.InitTimer.*;
  26 
  27 import java.util.*;
  28 
  29 import jdk.vm.ci.amd64.*;
  30 import jdk.vm.ci.code.*;
  31 import jdk.vm.ci.compiler.*;
  32 import jdk.vm.ci.hotspot.*;
  33 import jdk.vm.ci.inittimer.*;
  34 import jdk.vm.ci.meta.*;
  35 import jdk.vm.ci.runtime.*;
  36 import jdk.vm.ci.service.*;
  37 
  38 @ServiceProvider(HotSpotJVMCIBackendFactory.class)
  39 public class AMD64HotSpotJVMCIBackendFactory implements HotSpotJVMCIBackendFactory {
  40 
  41     protected EnumSet<AMD64.CPUFeature> computeFeatures(HotSpotVMConfig config) {
  42         // Configure the feature set using the HotSpot flag settings.
  43         EnumSet<AMD64.CPUFeature> features = EnumSet.noneOf(AMD64.CPUFeature.class);
  44         if ((config.x86CPUFeatures & config.cpu3DNOWPREFETCH) != 0) {
  45             features.add(AMD64.CPUFeature.AMD_3DNOW_PREFETCH);
  46         }
  47         assert config.useSSE >= 2 : "minimum config for x64";
  48         features.add(AMD64.CPUFeature.SSE);
  49         features.add(AMD64.CPUFeature.SSE2);
  50         if ((config.x86CPUFeatures & config.cpuSSE3) != 0) {
  51             features.add(AMD64.CPUFeature.SSE3);
  52         }
  53         if ((config.x86CPUFeatures & config.cpuSSSE3) != 0) {
  54             features.add(AMD64.CPUFeature.SSSE3);
  55         }
  56         if ((config.x86CPUFeatures & config.cpuSSE4A) != 0) {
  57             features.add(AMD64.CPUFeature.SSE4A);
  58         }
  59         if ((config.x86CPUFeatures & config.cpuSSE41) != 0) {
  60             features.add(AMD64.CPUFeature.SSE4_1);
  61         }
  62         if ((config.x86CPUFeatures & config.cpuSSE42) != 0) {
  63             features.add(AMD64.CPUFeature.SSE4_2);
  64         }
  65         if ((config.x86CPUFeatures & config.cpuPOPCNT) != 0) {
  66             features.add(AMD64.CPUFeature.POPCNT);
  67         }
  68         if ((config.x86CPUFeatures & config.cpuLZCNT) != 0) {
  69             features.add(AMD64.CPUFeature.LZCNT);
  70         }
  71         if ((config.x86CPUFeatures & config.cpuAVX) != 0) {
  72             features.add(AMD64.CPUFeature.AVX);
  73         }
  74         if ((config.x86CPUFeatures & config.cpuAVX2) != 0) {
  75             features.add(AMD64.CPUFeature.AVX2);
  76         }
  77         if ((config.x86CPUFeatures & config.cpuAES) != 0) {
  78             features.add(AMD64.CPUFeature.AES);
  79         }
  80         if ((config.x86CPUFeatures & config.cpuERMS) != 0) {
  81             features.add(AMD64.CPUFeature.ERMS);
  82         }
  83         if ((config.x86CPUFeatures & config.cpuBMI1) != 0) {
  84             features.add(AMD64.CPUFeature.BMI1);
  85         }
  86         return features;
  87     }
  88 
  89     protected EnumSet<AMD64.Flag> computeFlags(HotSpotVMConfig config) {
  90         EnumSet<AMD64.Flag> flags = EnumSet.noneOf(AMD64.Flag.class);
  91         if (config.useCountLeadingZerosInstruction) {
  92             flags.add(AMD64.Flag.UseCountLeadingZerosInstruction);
  93         }
  94         if (config.useCountTrailingZerosInstruction) {
  95             flags.add(AMD64.Flag.UseCountTrailingZerosInstruction);
  96         }
  97         return flags;
  98     }
  99 
 100     protected TargetDescription createTarget(HotSpotVMConfig config, CompilerFactory compilerFactory) {
 101         final int stackFrameAlignment = 16;
 102         final int implicitNullCheckLimit = 4096;
 103         final boolean inlineObjects = true;
 104         Architecture arch = new AMD64(computeFeatures(config), computeFlags(config));
 105         return new TargetDescription(compilerFactory.initializeArchitecture(arch), true, stackFrameAlignment, implicitNullCheckLimit, inlineObjects);
 106     }
 107 
 108     protected HotSpotConstantReflectionProvider createConstantReflection(HotSpotJVMCIRuntimeProvider runtime) {
 109         return new HotSpotConstantReflectionProvider(runtime);
 110     }
 111 
 112     protected RegisterConfig createRegisterConfig(HotSpotJVMCIRuntimeProvider runtime, TargetDescription target) {
 113         return new AMD64HotSpotRegisterConfig(target.arch, runtime.getConfig());
 114     }
 115 
 116     protected HotSpotCodeCacheProvider createCodeCache(HotSpotJVMCIRuntimeProvider runtime, TargetDescription target, RegisterConfig regConfig) {
 117         return new HotSpotCodeCacheProvider(runtime, runtime.getConfig(), target, regConfig);
 118     }
 119 
 120     protected HotSpotMetaAccessProvider createMetaAccess(HotSpotJVMCIRuntimeProvider runtime) {
 121         return new HotSpotMetaAccessProvider(runtime);
 122     }
 123 
 124     @Override
 125     public String getArchitecture() {
 126         return "AMD64";
 127     }
 128 
 129     @Override
 130     public String toString() {
 131         return "JVMCIBackend:" + getArchitecture();
 132     }
 133 
 134     @SuppressWarnings("try")
 135     public JVMCIBackend createJVMCIBackend(HotSpotJVMCIRuntimeProvider runtime, CompilerFactory compilerFactory, JVMCIBackend host) {
 136 
 137         assert host == null;
 138         TargetDescription target = createTarget(runtime.getConfig(), compilerFactory);
 139 
 140         RegisterConfig regConfig;
 141         HotSpotCodeCacheProvider codeCache;
 142         ConstantReflectionProvider constantReflection;
 143         HotSpotMetaAccessProvider metaAccess;
 144         try (InitTimer t = timer("create providers")) {
 145             try (InitTimer rt = timer("create MetaAccess provider")) {
 146                 metaAccess = createMetaAccess(runtime);
 147             }
 148             try (InitTimer rt = timer("create RegisterConfig")) {
 149                 regConfig = createRegisterConfig(runtime, target);
 150             }
 151             try (InitTimer rt = timer("create CodeCache provider")) {
 152                 codeCache = createCodeCache(runtime, target, regConfig);
 153             }
 154             try (InitTimer rt = timer("create ConstantReflection provider")) {
 155                 constantReflection = createConstantReflection(runtime);
 156             }
 157         }
 158         try (InitTimer rt = timer("instantiate backend")) {
 159             return createBackend(metaAccess, codeCache, constantReflection);
 160         }
 161     }
 162 
 163     protected JVMCIBackend createBackend(HotSpotMetaAccessProvider metaAccess, HotSpotCodeCacheProvider codeCache, ConstantReflectionProvider constantReflection) {
 164         return new JVMCIBackend(metaAccess, codeCache, constantReflection);
 165     }
 166 }