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.sparc;
  24 
  25 import static jdk.vm.ci.inittimer.InitTimer.*;
  26 
  27 import java.util.*;
  28 
  29 import jdk.vm.ci.code.*;
  30 import jdk.vm.ci.compiler.*;
  31 import jdk.vm.ci.hotspot.*;
  32 import jdk.vm.ci.inittimer.*;
  33 import jdk.vm.ci.runtime.*;
  34 import jdk.vm.ci.service.*;
  35 import jdk.vm.ci.sparc.*;
  36 import jdk.vm.ci.sparc.SPARC.CPUFeature;
  37 
  38 @ServiceProvider(HotSpotJVMCIBackendFactory.class)
  39 public class SPARCHotSpotJVMCIBackendFactory implements HotSpotJVMCIBackendFactory {
  40 
  41     protected TargetDescription createTarget(HotSpotVMConfig config, CompilerFactory compilerFactory) {
  42         final int stackFrameAlignment = 16;
  43         final int implicitNullCheckLimit = 4096;
  44         final boolean inlineObjects = false;
  45         Architecture arch = new SPARC(computeFeatures(config));
  46         return new TargetDescription(compilerFactory.initializeArchitecture(arch), true, stackFrameAlignment, implicitNullCheckLimit, inlineObjects);
  47     }
  48 
  49     protected HotSpotCodeCacheProvider createCodeCache(HotSpotJVMCIRuntimeProvider runtime, TargetDescription target, RegisterConfig regConfig) {
  50         return new HotSpotCodeCacheProvider(runtime, runtime.getConfig(), target, regConfig);
  51     }
  52 
  53     protected EnumSet<CPUFeature> computeFeatures(HotSpotVMConfig config) {
  54         EnumSet<CPUFeature> features = EnumSet.noneOf(CPUFeature.class);
  55         if ((config.sparcFeatures & config.vis1Instructions) != 0) {
  56             features.add(CPUFeature.VIS1);
  57         }
  58         if ((config.sparcFeatures & config.vis2Instructions) != 0) {
  59             features.add(CPUFeature.VIS2);
  60         }
  61         if ((config.sparcFeatures & config.vis3Instructions) != 0) {
  62             features.add(CPUFeature.VIS3);
  63         }
  64         if ((config.sparcFeatures & config.cbcondInstructions) != 0) {
  65             features.add(CPUFeature.CBCOND);
  66         }
  67         if (config.useBlockZeroing) {
  68             features.add(CPUFeature.BLOCK_ZEROING);
  69         }
  70         return features;
  71     }
  72 
  73     @Override
  74     public String getArchitecture() {
  75         return "SPARC";
  76     }
  77 
  78     @Override
  79     public String toString() {
  80         return "JVMCIBackend:" + getArchitecture();
  81     }
  82 
  83     @SuppressWarnings("try")
  84     public JVMCIBackend createJVMCIBackend(HotSpotJVMCIRuntimeProvider runtime, CompilerFactory compilerFactory, JVMCIBackend host) {
  85         assert host == null;
  86         TargetDescription target = createTarget(runtime.getConfig(), compilerFactory);
  87 
  88         HotSpotMetaAccessProvider metaAccess = new HotSpotMetaAccessProvider(runtime);
  89         RegisterConfig regConfig = new SPARCHotSpotRegisterConfig(target, runtime.getConfig());
  90         HotSpotCodeCacheProvider codeCache = createCodeCache(runtime, target, regConfig);
  91         HotSpotConstantReflectionProvider constantReflection = new HotSpotConstantReflectionProvider(runtime);
  92         try (InitTimer rt = timer("instantiate backend")) {
  93             return createBackend(metaAccess, codeCache, constantReflection);
  94         }
  95     }
  96 
  97     protected JVMCIBackend createBackend(HotSpotMetaAccessProvider metaAccess, HotSpotCodeCacheProvider codeCache, HotSpotConstantReflectionProvider constantReflection) {
  98         return new JVMCIBackend(metaAccess, codeCache, constantReflection);
  99     }
 100 }