1 /*
2 * Copyright (c) 2015, 2018, 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
26 package org.graalvm.compiler.core.aarch64;
27
28 import jdk.vm.ci.meta.AllocatableValue;
29 import jdk.vm.ci.meta.JavaKind;
30 import jdk.vm.ci.meta.Value;
31 import jdk.internal.vm.compiler.collections.EconomicMap;
32 import jdk.internal.vm.compiler.collections.Equivalence;
33 import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler;
34 import org.graalvm.compiler.core.common.LIRKind;
35 import org.graalvm.compiler.core.gen.NodeMatchRules;
36 import org.graalvm.compiler.core.match.ComplexMatchResult;
37 import org.graalvm.compiler.core.match.MatchRule;
38 import org.graalvm.compiler.graph.Node;
39 import org.graalvm.compiler.lir.LIRFrameState;
40 import org.graalvm.compiler.lir.Variable;
41 import org.graalvm.compiler.lir.aarch64.AArch64ArithmeticOp;
42 import org.graalvm.compiler.lir.gen.LIRGeneratorTool;
43 import org.graalvm.compiler.nodes.ConstantNode;
44 import org.graalvm.compiler.nodes.DeoptimizingNode;
45 import org.graalvm.compiler.nodes.NodeView;
46 import org.graalvm.compiler.nodes.ValueNode;
47 import org.graalvm.compiler.nodes.calc.AddNode;
48 import org.graalvm.compiler.nodes.calc.AndNode;
49 import org.graalvm.compiler.nodes.calc.BinaryNode;
50 import org.graalvm.compiler.nodes.calc.LeftShiftNode;
51 import org.graalvm.compiler.nodes.calc.NotNode;
52 import org.graalvm.compiler.nodes.calc.OrNode;
53 import org.graalvm.compiler.nodes.calc.RightShiftNode;
54 import org.graalvm.compiler.nodes.calc.SubNode;
55 import org.graalvm.compiler.nodes.calc.UnsignedRightShiftNode;
56 import org.graalvm.compiler.nodes.calc.XorNode;
57 import org.graalvm.compiler.nodes.memory.Access;
58
59 import jdk.vm.ci.aarch64.AArch64Kind;
60
61 public class AArch64NodeMatchRules extends NodeMatchRules {
62 private static final EconomicMap<Class<? extends Node>, AArch64ArithmeticOp> nodeOpMap;
63
64 private static final EconomicMap<Class<? extends BinaryNode>, AArch64MacroAssembler.ShiftType> shiftTypeMap;
65
66 static {
67 nodeOpMap = EconomicMap.create(Equivalence.IDENTITY, 5);
68 nodeOpMap.put(AddNode.class, AArch64ArithmeticOp.ADD);
69 nodeOpMap.put(SubNode.class, AArch64ArithmeticOp.SUB);
70 nodeOpMap.put(AndNode.class, AArch64ArithmeticOp.AND);
71 nodeOpMap.put(OrNode.class, AArch64ArithmeticOp.OR);
72 nodeOpMap.put(XorNode.class, AArch64ArithmeticOp.XOR);
73
74 shiftTypeMap = EconomicMap.create(Equivalence.IDENTITY, 3);
75 shiftTypeMap.put(LeftShiftNode.class, AArch64MacroAssembler.ShiftType.LSL);
76 shiftTypeMap.put(RightShiftNode.class, AArch64MacroAssembler.ShiftType.ASR);
77 shiftTypeMap.put(UnsignedRightShiftNode.class, AArch64MacroAssembler.ShiftType.LSR);
78 }
79
80 public AArch64NodeMatchRules(LIRGeneratorTool gen) {
81 super(gen);
82 }
83
84 protected LIRFrameState getState(Access access) {
85 if (access instanceof DeoptimizingNode) {
86 return state((DeoptimizingNode) access);
87 }
88 return null;
89 }
90
91 protected AArch64Kind getMemoryKind(Access access) {
92 return (AArch64Kind) gen.getLIRKind(access.asNode().stamp(NodeView.DEFAULT)).getPlatformKind();
93 }
94
95 private AllocatableValue moveSp(AllocatableValue value) {
96 return getLIRGeneratorTool().moveSp(value);
97 }
98
99 private ComplexMatchResult emitBinaryShift(AArch64ArithmeticOp op, ValueNode value, BinaryNode shift, boolean isShiftNot) {
100 AArch64MacroAssembler.ShiftType shiftType = shiftTypeMap.get(shift.getClass());
101 assert shiftType != null;
102 assert value.getStackKind().isNumericInteger();
103 assert shift.getX().getStackKind().isNumericInteger();
104 assert shift.getY() instanceof ConstantNode;
105
106 return builder -> {
107 Value a = operand(value);
108 Value b = operand(shift.getX());
109 Variable result = gen.newVariable(LIRKind.combine(a, b));
110 AllocatableValue x = moveSp(gen.asAllocatable(a));
111 AllocatableValue y = moveSp(gen.asAllocatable(b));
112 int shiftAmount = shift.getY().asJavaConstant().asInt();
113 gen.append(new AArch64ArithmeticOp.BinaryShiftOp(op, result, x, y, shiftType, shiftAmount, isShiftNot));
114 return result;
115 };
116 }
117
118 @MatchRule("(Add=binary a (LeftShift=shift b Constant))")
119 @MatchRule("(Add=binary a (RightShift=shift b Constant))")
120 @MatchRule("(Add=binary a (UnsignedRightShift=shift b Constant))")
121 @MatchRule("(Sub=binary a (LeftShift=shift b Constant))")
122 @MatchRule("(Sub=binary a (RightShift=shift b Constant))")
123 @MatchRule("(Sub=binary a (UnsignedRightShift=shift b Constant))")
124 public ComplexMatchResult addSubShift(BinaryNode binary, ValueNode a, BinaryNode shift) {
125 AArch64ArithmeticOp op = nodeOpMap.get(binary.getClass());
126 assert op != null;
127 return emitBinaryShift(op, a, shift, false);
128 }
129
130 @MatchRule("(And=binary a (LeftShift=shift b Constant))")
131 @MatchRule("(And=binary a (RightShift=shift b Constant))")
132 @MatchRule("(And=binary a (UnsignedRightShift=shift b Constant))")
133 @MatchRule("(Or=binary a (LeftShift=shift b Constant))")
134 @MatchRule("(Or=binary a (RightShift=shift b Constant))")
135 @MatchRule("(Or=binary a (UnsignedRightShift=shift b Constant))")
136 @MatchRule("(Xor=binary a (LeftShift=shift b Constant))")
137 @MatchRule("(Xor=binary a (RightShift=shift b Constant))")
138 @MatchRule("(Xor=binary a (UnsignedRightShift=shift b Constant))")
139 @MatchRule("(And=binary a (Not (LeftShift=shift b Constant)))")
140 @MatchRule("(And=binary a (Not (RightShift=shift b Constant)))")
141 @MatchRule("(And=binary a (Not (UnsignedRightShift=shift b Constant)))")
142 @MatchRule("(Or=binary a (Not (LeftShift=shift b Constant)))")
143 @MatchRule("(Or=binary a (Not (RightShift=shift b Constant)))")
144 @MatchRule("(Or=binary a (Not (UnsignedRightShift=shift b Constant)))")
145 @MatchRule("(Xor=binary a (Not (LeftShift=shift b Constant)))")
146 @MatchRule("(Xor=binary a (Not (RightShift=shift b Constant)))")
147 @MatchRule("(Xor=binary a (Not (UnsignedRightShift=shift b Constant)))")
148 public ComplexMatchResult logicShift(BinaryNode binary, ValueNode a, BinaryNode shift) {
149 AArch64ArithmeticOp op = nodeOpMap.get(binary.getClass());
150 assert op != null;
151 ValueNode operand = binary.getX() == a ? binary.getY() : binary.getX();
152 boolean isShiftNot = operand instanceof NotNode;
153 return emitBinaryShift(op, a, shift, isShiftNot);
154 }
155
156 @MatchRule("(Mul (Negate a) b)")
157 @MatchRule("(Negate (Mul a b))")
158 public ComplexMatchResult multiplyNegate(ValueNode a, ValueNode b) {
159 if (a.getStackKind().isNumericInteger() && b.getStackKind().isNumericInteger()) {
160 return builder -> getArithmeticLIRGenerator().emitMNeg(operand(a), operand(b));
161 }
162 return null;
163 }
164
165 @MatchRule("(Add=binary (Mul a b) c)")
166 @MatchRule("(Sub=binary c (Mul a b))")
167 public ComplexMatchResult multiplyAddSub(BinaryNode binary, ValueNode a, ValueNode b, ValueNode c) {
168 JavaKind kindA = a.getStackKind();
169 JavaKind kindB = b.getStackKind();
170 JavaKind kindC = c.getStackKind();
171 if (!kindA.isNumericInteger() || !kindB.isNumericInteger() || !kindC.isNumericInteger()) {
172 return null;
173 }
174
175 if (binary instanceof AddNode) {
176 return builder -> getArithmeticLIRGenerator().emitMAdd(operand(a), operand(b), operand(c));
177 }
178 return builder -> getArithmeticLIRGenerator().emitMSub(operand(a), operand(b), operand(c));
179 }
180
181 @Override
182 public AArch64LIRGenerator getLIRGeneratorTool() {
183 return (AArch64LIRGenerator) gen;
184 }
185
186 protected AArch64ArithmeticLIRGenerator getArithmeticLIRGenerator() {
187 return (AArch64ArithmeticLIRGenerator) getLIRGeneratorTool().getArithmetic();
188 }
189 }