1 /* 2 * Copyright (c) 2016, 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 24 25 package org.graalvm.compiler.replacements.amd64; 26 27 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_64; 28 29 import org.graalvm.compiler.core.common.type.StampFactory; 30 import org.graalvm.compiler.graph.NodeClass; 31 import org.graalvm.compiler.graph.NodeInputList; 32 import org.graalvm.compiler.nodeinfo.InputType; 33 import org.graalvm.compiler.nodeinfo.NodeCycles; 34 import org.graalvm.compiler.nodeinfo.NodeInfo; 35 import org.graalvm.compiler.nodes.FixedWithNextNode; 36 import org.graalvm.compiler.nodes.NamedLocationIdentity; 37 import org.graalvm.compiler.nodes.ValueNode; 38 import org.graalvm.compiler.nodes.ValueNodeUtil; 39 import org.graalvm.compiler.nodes.memory.MemoryAccess; 40 import org.graalvm.compiler.nodes.memory.MemoryNode; 41 import org.graalvm.compiler.nodes.spi.LIRLowerable; 42 import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool; 43 import jdk.internal.vm.compiler.word.LocationIdentity; 44 import jdk.internal.vm.compiler.word.Pointer; 45 46 import jdk.vm.ci.meta.JavaKind; 47 import jdk.vm.ci.meta.Value; 48 49 @NodeInfo(size = SIZE_64, cycles = NodeCycles.CYCLES_UNKNOWN) 50 public class AMD64StringIndexOfNode extends FixedWithNextNode implements LIRLowerable, MemoryAccess { 51 public static final NodeClass<AMD64StringIndexOfNode> TYPE = NodeClass.create(AMD64StringIndexOfNode.class); 52 53 @OptionalInput(InputType.Memory) protected MemoryNode lastLocationAccess; 54 55 @Input protected NodeInputList<ValueNode> arguments; 56 57 public AMD64StringIndexOfNode(ValueNode sourcePointer, ValueNode sourceCount, ValueNode targetPointer, ValueNode targetCount) { 58 super(TYPE, StampFactory.forInteger(32)); 59 this.arguments = new NodeInputList<>(this, new ValueNode[]{sourcePointer, sourceCount, targetPointer, targetCount}); 60 } 61 62 @Override 63 public LocationIdentity getLocationIdentity() { 64 return NamedLocationIdentity.getArrayLocation(JavaKind.Char); 65 } 66 67 ValueNode sourcePointer() { 68 return arguments.get(0); 69 } 70 71 ValueNode sourceCount() { 72 return arguments.get(1); 73 } 74 75 ValueNode targetPointer() { 76 return arguments.get(2); 77 } 78 79 ValueNode targetCount() { 80 return arguments.get(3); 81 } 82 83 @Override 84 public void generate(NodeLIRBuilderTool gen) { 85 int constantTargetCount = -1; 86 if (targetCount().isConstant()) { 87 constantTargetCount = targetCount().asJavaConstant().asInt(); 88 } 89 Value result = gen.getLIRGeneratorTool().emitStringIndexOf(gen.operand(sourcePointer()), gen.operand(sourceCount()), gen.operand(targetPointer()), gen.operand(targetCount()), 90 constantTargetCount); 91 gen.setResult(this, result); 92 } 93 94 @Override 95 public MemoryNode getLastLocationAccess() { 96 return lastLocationAccess; 97 } 98 99 @Override 100 public void setLastLocationAccess(MemoryNode lla) { 101 updateUsages(ValueNodeUtil.asNode(lastLocationAccess), ValueNodeUtil.asNode(lla)); 102 lastLocationAccess = lla; 103 } 104 105 @NodeIntrinsic 106 public static native int optimizedStringIndexPointer(Pointer sourcePointer, int sourceCount, Pointer targetPointer, int targetCount); 107 }