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 package org.graalvm.compiler.core.aarch64; 25 26 import org.graalvm.compiler.asm.aarch64.AArch64Address; 27 import org.graalvm.compiler.asm.aarch64.AArch64Address.AddressingMode; 28 import org.graalvm.compiler.core.common.LIRKind; 29 import org.graalvm.compiler.debug.GraalError; 30 import org.graalvm.compiler.graph.NodeClass; 31 import org.graalvm.compiler.lir.aarch64.AArch64AddressValue; 32 import org.graalvm.compiler.lir.gen.LIRGeneratorTool; 33 import org.graalvm.compiler.nodeinfo.NodeInfo; 34 import org.graalvm.compiler.nodes.ValueNode; 35 import org.graalvm.compiler.nodes.memory.address.AddressNode; 36 import org.graalvm.compiler.nodes.spi.LIRLowerable; 37 import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool; 38 39 import jdk.vm.ci.meta.AllocatableValue; 40 import jdk.vm.ci.meta.Value; 41 42 /** 43 * Represents an address of the form... TODO. 44 */ 45 @NodeInfo 46 public class AArch64AddressNode extends AddressNode implements LIRLowerable { 47 48 public static final NodeClass<AArch64AddressNode> TYPE = NodeClass.create(AArch64AddressNode.class); 49 50 @OptionalInput private ValueNode base; 51 52 @OptionalInput private ValueNode index; 53 private AArch64Address.AddressingMode addressingMode; 54 55 private int displacement; 56 57 public AArch64AddressNode(ValueNode base) { 58 this(base, null); 59 } 60 61 public AArch64AddressNode(ValueNode base, ValueNode index) { 62 super(TYPE); 63 this.base = base; 64 this.index = index; 65 this.addressingMode = AddressingMode.REGISTER_OFFSET; 66 } 67 68 @Override 69 public void generate(NodeLIRBuilderTool gen) { 70 LIRGeneratorTool tool = gen.getLIRGeneratorTool(); 71 72 AllocatableValue baseValue = base == null ? Value.ILLEGAL : tool.asAllocatable(gen.operand(base)); 73 AllocatableValue indexValue = index == null ? Value.ILLEGAL : tool.asAllocatable(gen.operand(index)); 74 75 AllocatableValue baseReference = LIRKind.derivedBaseFromValue(baseValue); 76 AllocatableValue indexReference; 77 if (addressingMode.equals(AddressingMode.IMMEDIATE_UNSCALED)) { 78 indexReference = LIRKind.derivedBaseFromValue(indexValue); 79 throw GraalError.unimplemented(); 80 } else { 81 if (LIRKind.isValue(indexValue.getValueKind())) { 82 indexReference = null; 83 } else { 84 indexReference = Value.ILLEGAL; 85 } 86 } 87 88 LIRKind kind = LIRKind.combineDerived(tool.getLIRKind(stamp()), baseReference, indexReference); 89 final boolean scaled = false; 90 gen.setResult(this, new AArch64AddressValue(kind, baseValue, indexValue, displacement, scaled, addressingMode)); 91 } 92 93 public ValueNode getBase() { 94 return base; 95 } 96 97 public void setBase(ValueNode base) { 98 // allow modification before inserting into the graph 99 if (isAlive()) { 100 updateUsages(this.base, base); 101 } 102 this.base = base; 103 } 104 105 public ValueNode getIndex() { 106 return index; 107 } 108 109 public void setIndex(ValueNode index) { 110 // allow modification before inserting into the graph 111 if (isAlive()) { 112 updateUsages(this.index, index); 113 } 114 this.index = index; 115 } 116 117 public int getDisplacement() { 118 return displacement; 119 } 120 121 public void setDisplacement(int displacement) { 122 this.displacement = displacement; 123 } 124 }