1 /* 2 * Copyright (c) 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 org.graalvm.compiler.hotspot.nodes; 24 25 import static org.graalvm.compiler.core.common.GraalOptions.GeneratePIC; 26 import static org.graalvm.compiler.hotspot.GraalHotSpotVMConfig.INJECTED_VMCONFIG; 27 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_1; 28 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_1; 29 30 import org.graalvm.compiler.api.replacements.Fold; 31 import org.graalvm.compiler.api.replacements.Fold.InjectedParameter; 32 import org.graalvm.compiler.core.common.type.StampFactory; 33 import org.graalvm.compiler.graph.Node; 34 import org.graalvm.compiler.graph.NodeClass; 35 import org.graalvm.compiler.graph.spi.Canonicalizable; 36 import org.graalvm.compiler.graph.spi.CanonicalizerTool; 37 import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; 38 import org.graalvm.compiler.hotspot.HotSpotLIRGenerator; 39 import org.graalvm.compiler.nodeinfo.NodeInfo; 40 import org.graalvm.compiler.nodes.ConstantNode; 41 import org.graalvm.compiler.nodes.calc.FloatingNode; 42 import org.graalvm.compiler.nodes.spi.LIRLowerable; 43 import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool; 44 45 import jdk.vm.ci.meta.JavaKind; 46 import jdk.vm.ci.meta.Value; 47 48 /** 49 * Represents {@link GraalHotSpotVMConfig} values that may change after compilation. 50 */ 51 @NodeInfo(cycles = CYCLES_1, size = SIZE_1) 52 public class GraalHotSpotVMConfigNode extends FloatingNode implements LIRLowerable, Canonicalizable { 53 public static final NodeClass<GraalHotSpotVMConfigNode> TYPE = NodeClass.create(GraalHotSpotVMConfigNode.class); 54 55 private final GraalHotSpotVMConfig config; 56 protected final int markId; 57 58 public GraalHotSpotVMConfigNode(@InjectedNodeParameter GraalHotSpotVMConfig config, int markId, JavaKind kind) { 59 super(TYPE, StampFactory.forKind(kind)); 60 this.config = config; 61 this.markId = markId; 62 } 63 64 /** 65 * Constructor selected by {@link #loadConfigValue(int, JavaKind)}. 66 * 67 * @param config 68 * @param markId 69 */ 70 public GraalHotSpotVMConfigNode(@InjectedNodeParameter GraalHotSpotVMConfig config, int markId) { 71 super(TYPE, StampFactory.forKind(JavaKind.Boolean)); 72 this.config = config; 73 this.markId = 0; 74 } 75 76 @Override 77 public void generate(NodeLIRBuilderTool generator) { 78 Value res = ((HotSpotLIRGenerator) generator.getLIRGeneratorTool()).emitLoadConfigValue(markId); 79 generator.setResult(this, res); 80 } 81 82 @NodeIntrinsic 83 private static native boolean isConfigValueConstant(@ConstantNodeParameter int markId); 84 85 @NodeIntrinsic 86 private static native long loadConfigValue(@ConstantNodeParameter int markId, @ConstantNodeParameter JavaKind kind); 87 88 public static long cardTableAddress() { 89 return loadConfigValue(cardTableAddressMark(INJECTED_VMCONFIG), JavaKind.Long); 90 } 91 92 public static boolean isCardTableAddressConstant() { 93 return isConfigValueConstant(cardTableAddressMark(INJECTED_VMCONFIG)); 94 } 95 96 public static long heapTopAddress() { 97 return loadConfigValue(heapTopAddressMark(INJECTED_VMCONFIG), JavaKind.Long); 98 } 99 100 public static long heapEndAddress() { 101 return loadConfigValue(heapEndAddressMark(INJECTED_VMCONFIG), JavaKind.Long); 102 } 103 104 public static long crcTableAddress() { 105 return loadConfigValue(crcTableAddressMark(INJECTED_VMCONFIG), JavaKind.Long); 106 } 107 108 public static int logOfHeapRegionGrainBytes() { 109 return (int) loadConfigValue(logOfHeapRegionGrainBytesMark(INJECTED_VMCONFIG), JavaKind.Byte); 110 } 111 112 public static boolean inlineContiguousAllocationSupported() { 113 return (int) loadConfigValue(inlineContiguousAllocationSupportedMark(INJECTED_VMCONFIG), JavaKind.Byte) > 0; 114 } 115 116 @Fold 117 public static int cardTableAddressMark(@InjectedParameter GraalHotSpotVMConfig config) { 118 return config.MARKID_CARD_TABLE_ADDRESS; 119 } 120 121 @Fold 122 public static int heapTopAddressMark(@InjectedParameter GraalHotSpotVMConfig config) { 123 return config.MARKID_HEAP_TOP_ADDRESS; 124 } 125 126 @Fold 127 public static int heapEndAddressMark(@InjectedParameter GraalHotSpotVMConfig config) { 128 return config.MARKID_HEAP_END_ADDRESS; 129 } 130 131 @Fold 132 public static int crcTableAddressMark(@InjectedParameter GraalHotSpotVMConfig config) { 133 return config.MARKID_CRC_TABLE_ADDRESS; 134 } 135 136 @Fold 137 public static int logOfHeapRegionGrainBytesMark(@InjectedParameter GraalHotSpotVMConfig config) { 138 return config.MARKID_LOG_OF_HEAP_REGION_GRAIN_BYTES; 139 } 140 141 @Fold 142 public static int inlineContiguousAllocationSupportedMark(@InjectedParameter GraalHotSpotVMConfig config) { 143 return config.MARKID_INLINE_CONTIGUOUS_ALLOCATION_SUPPORTED; 144 } 145 146 @Override 147 public Node canonical(CanonicalizerTool tool) { 148 if (markId == 0) { 149 return ConstantNode.forBoolean(!GeneratePIC.getValue()); 150 } 151 if (!GeneratePIC.getValue()) { 152 if (markId == cardTableAddressMark(config)) { 153 return ConstantNode.forLong(config.cardtableStartAddress); 154 } else if (markId == heapTopAddressMark(config)) { 155 return ConstantNode.forLong(config.heapTopAddress); 156 } else if (markId == heapEndAddressMark(config)) { 157 return ConstantNode.forLong(config.heapEndAddress); 158 } else if (markId == crcTableAddressMark(config)) { 159 return ConstantNode.forLong(config.crcTableAddress); 160 } else if (markId == logOfHeapRegionGrainBytesMark(config)) { 161 return ConstantNode.forInt(config.logOfHRGrainBytes); 162 } else if (markId == inlineContiguousAllocationSupportedMark(config)) { 163 return ConstantNode.forBoolean(config.inlineContiguousAllocationSupported); 164 } else { 165 assert false; 166 } 167 } 168 return this; 169 } 170 }