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 24 25 26 package org.graalvm.compiler.core.aarch64; 27 28 import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler; 29 import org.graalvm.compiler.core.gen.NodeMatchRules; 30 import org.graalvm.compiler.core.match.ComplexMatchResult; 31 import org.graalvm.compiler.core.match.MatchRule; 32 import org.graalvm.compiler.lir.LIRFrameState; 33 import org.graalvm.compiler.lir.aarch64.AArch64ArithmeticOp; 34 import org.graalvm.compiler.lir.gen.LIRGeneratorTool; 35 import org.graalvm.compiler.nodes.ConstantNode; 36 import org.graalvm.compiler.nodes.DeoptimizingNode; 37 import org.graalvm.compiler.nodes.NodeView; 38 import org.graalvm.compiler.nodes.ValueNode; 39 import org.graalvm.compiler.nodes.calc.AddNode; 40 import org.graalvm.compiler.nodes.calc.BinaryNode; 41 import org.graalvm.compiler.nodes.calc.LeftShiftNode; 42 import org.graalvm.compiler.nodes.calc.RightShiftNode; 43 import org.graalvm.compiler.nodes.calc.UnsignedRightShiftNode; 44 import org.graalvm.compiler.nodes.memory.Access; 45 46 import jdk.vm.ci.aarch64.AArch64Kind; 47 48 public class AArch64NodeMatchRules extends NodeMatchRules { 49 50 public AArch64NodeMatchRules(LIRGeneratorTool gen) { 51 super(gen); 52 } 53 54 protected LIRFrameState getState(Access access) { 55 if (access instanceof DeoptimizingNode) { 56 return state((DeoptimizingNode) access); 57 } 58 return null; 59 } 60 61 protected AArch64Kind getMemoryKind(Access access) { 62 return (AArch64Kind) gen.getLIRKind(access.asNode().stamp(NodeView.DEFAULT)).getPlatformKind(); 63 } 64 65 private ComplexMatchResult emitAddSubShift(AArch64ArithmeticOp op, ValueNode value, BinaryNode shift) { 66 assert shift.getY() instanceof ConstantNode; 67 int shiftAmount = shift.getY().asJavaConstant().asInt(); 68 69 if (shift instanceof LeftShiftNode) { 70 return builder -> getArithmeticLIRGenerator().emitAddSubShift(op, operand(value), operand(shift.getX()), 71 AArch64MacroAssembler.ShiftType.LSL, shiftAmount); 72 } else if (shift instanceof RightShiftNode) { 73 return builder -> getArithmeticLIRGenerator().emitAddSubShift(op, operand(value), operand(shift.getX()), 74 AArch64MacroAssembler.ShiftType.ASR, shiftAmount); 75 } else { 76 assert shift instanceof UnsignedRightShiftNode; 77 return builder -> getArithmeticLIRGenerator().emitAddSubShift(op, operand(value), operand(shift.getX()), 78 AArch64MacroAssembler.ShiftType.LSR, shiftAmount); 79 } 80 } 81 82 @MatchRule("(Add=binary a (LeftShift=shift b Constant))") 83 @MatchRule("(Add=binary a (RightShift=shift b Constant))") 84 @MatchRule("(Add=binary a (UnsignedRightShift=shift b Constant))") 85 @MatchRule("(Sub=binary a (LeftShift=shift b Constant))") 86 @MatchRule("(Sub=binary a (RightShift=shift b Constant))") 87 @MatchRule("(Sub=binary a (UnsignedRightShift=shift b Constant))") 88 public ComplexMatchResult addSubShift(BinaryNode binary, ValueNode a, BinaryNode shift) { 89 if (binary instanceof AddNode) { 90 return emitAddSubShift(AArch64ArithmeticOp.ADD, a, shift); 91 } 92 return emitAddSubShift(AArch64ArithmeticOp.SUB, a, shift); 93 } 94 95 @Override 96 public AArch64LIRGenerator getLIRGeneratorTool() { 97 return (AArch64LIRGenerator) gen; 98 } 99 100 protected AArch64ArithmeticLIRGenerator getArithmeticLIRGenerator() { 101 return (AArch64ArithmeticLIRGenerator) getLIRGeneratorTool().getArithmetic(); 102 } 103 }