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annotate jvmci/jdk.vm.ci.hotspot.sparc/src/jdk/vm/ci/hotspot/sparc/SPARCHotSpotJVMCIBackendFactory.java @ 22681:c278790fa252

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[SPARC] Move allocatable register selection out of the Architecture description
author Stefan Anzinger <stefan.anzinger@oracle.com>
date Tue, 13 Oct 2015 18:22:26 +0200
parents 1bbd4a7c274b
children 2935e7fbd941
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1 /*
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2 * Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package jdk.vm.ci.hotspot.sparc;
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24
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25 import static jdk.vm.ci.inittimer.InitTimer.timer;
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26
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27 import java.util.EnumSet;
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28
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29 import jdk.vm.ci.code.Architecture;
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30 import jdk.vm.ci.code.RegisterConfig;
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31 import jdk.vm.ci.code.TargetDescription;
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32 import jdk.vm.ci.code.stack.StackIntrospection;
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33 import jdk.vm.ci.hotspot.HotSpotCodeCacheProvider;
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34 import jdk.vm.ci.hotspot.HotSpotConstantReflectionProvider;
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35 import jdk.vm.ci.hotspot.HotSpotJVMCIBackendFactory;
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36 import jdk.vm.ci.hotspot.HotSpotJVMCIRuntimeProvider;
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37 import jdk.vm.ci.hotspot.HotSpotMetaAccessProvider;
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38 import jdk.vm.ci.hotspot.HotSpotStackIntrospection;
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39 import jdk.vm.ci.hotspot.HotSpotVMConfig;
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40 import jdk.vm.ci.inittimer.InitTimer;
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41 import jdk.vm.ci.runtime.JVMCIBackend;
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42 import jdk.vm.ci.service.ServiceProvider;
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43 import jdk.vm.ci.sparc.SPARC;
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44 import jdk.vm.ci.sparc.SPARC.CPUFeature;
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45
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46 @ServiceProvider(HotSpotJVMCIBackendFactory.class)
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47 public class SPARCHotSpotJVMCIBackendFactory implements HotSpotJVMCIBackendFactory {
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48
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49 protected TargetDescription createTarget(HotSpotVMConfig config) {
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50 final int stackFrameAlignment = 16;
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51 final int implicitNullCheckLimit = 4096;
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52 final boolean inlineObjects = false;
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53 Architecture arch = new SPARC(computeFeatures(config));
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54 return new TargetDescription(arch, true, stackFrameAlignment, implicitNullCheckLimit, inlineObjects);
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55 }
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56
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57 protected HotSpotCodeCacheProvider createCodeCache(HotSpotJVMCIRuntimeProvider runtime, TargetDescription target, RegisterConfig regConfig) {
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58 return new HotSpotCodeCacheProvider(runtime, runtime.getConfig(), target, regConfig);
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59 }
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60
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61 protected EnumSet<CPUFeature> computeFeatures(HotSpotVMConfig config) {
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62 EnumSet<CPUFeature> features = EnumSet.noneOf(CPUFeature.class);
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63 if ((config.sparcFeatures & config.vis1Instructions) != 0) {
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64 features.add(CPUFeature.VIS1);
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65 }
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66 if ((config.sparcFeatures & config.vis2Instructions) != 0) {
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67 features.add(CPUFeature.VIS2);
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68 }
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69 if ((config.sparcFeatures & config.vis3Instructions) != 0) {
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70 features.add(CPUFeature.VIS3);
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71 }
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72 if ((config.sparcFeatures & config.cbcondInstructions) != 0) {
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73 features.add(CPUFeature.CBCOND);
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74 }
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75 if (config.useBlockZeroing) {
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76 features.add(CPUFeature.BLOCK_ZEROING);
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77 }
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78 return features;
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79 }
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80
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81 @Override
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82 public String getArchitecture() {
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83 return "SPARC";
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84 }
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85
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86 @Override
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87 public String toString() {
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88 return "JVMCIBackend:" + getArchitecture();
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89 }
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90
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91 @SuppressWarnings("try")
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92 public JVMCIBackend createJVMCIBackend(HotSpotJVMCIRuntimeProvider runtime, JVMCIBackend host) {
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93 assert host == null;
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94 TargetDescription target = createTarget(runtime.getConfig());
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95
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96 HotSpotMetaAccessProvider metaAccess = new HotSpotMetaAccessProvider(runtime);
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97 RegisterConfig regConfig = new SPARCHotSpotRegisterConfig(target.arch, runtime.getConfig());
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98 HotSpotCodeCacheProvider codeCache = createCodeCache(runtime, target, regConfig);
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99 HotSpotConstantReflectionProvider constantReflection = new HotSpotConstantReflectionProvider(runtime);
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100 StackIntrospection stackIntrospection = new HotSpotStackIntrospection(runtime);
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101 try (InitTimer rt = timer("instantiate backend")) {
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102 return createBackend(metaAccess, codeCache, constantReflection, stackIntrospection);
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103 }
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104 }
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105
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106 protected JVMCIBackend createBackend(HotSpotMetaAccessProvider metaAccess, HotSpotCodeCacheProvider codeCache, HotSpotConstantReflectionProvider constantReflection,
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107 StackIntrospection stackIntrospection) {
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108 return new JVMCIBackend(metaAccess, codeCache, constantReflection, stackIntrospection);
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109 }
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110 }