Mercurial > hg > truffle
diff graal/GraalCompiler/src/com/sun/c1x/ir/Binary.java @ 2852:c6bdec623ef9
Move TypeCHeck to floating nodes, rename Nodes to aboid using an *Op suffix
author | Gilles Duboscq <gilles.duboscq@oracle.com> |
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date | Tue, 07 Jun 2011 12:10:27 +0200 |
parents | graal/GraalCompiler/src/com/sun/c1x/ir/Op2.java@caf55daa41dc |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/GraalCompiler/src/com/sun/c1x/ir/Binary.java Tue Jun 07 12:10:27 2011 +0200 @@ -0,0 +1,115 @@ +/* + * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package com.sun.c1x.ir; + +import com.oracle.graal.graph.*; +import com.sun.c1x.util.*; +import com.sun.cri.bytecode.*; +import com.sun.cri.ci.*; + +/** + * The {@code Op2} class is the base of arithmetic and logic operations with two inputs. + */ +public abstract class Binary extends FloatingNode { + + private static final int INPUT_COUNT = 2; + private static final int INPUT_X = 0; + private static final int INPUT_Y = 1; + + private static final int SUCCESSOR_COUNT = 0; + + @Override + protected int inputCount() { + return super.inputCount() + INPUT_COUNT; + } + + @Override + protected int successorCount() { + return super.successorCount() + SUCCESSOR_COUNT; + } + + /** + * The first input to this instruction. + */ + public Value x() { + return (Value) inputs().get(super.inputCount() + INPUT_X); + } + + public Value setX(Value n) { + return (Value) inputs().set(super.inputCount() + INPUT_X, n); + } + + /** + * The second input to this instruction. + */ + public Value y() { + return (Value) inputs().get(super.inputCount() + INPUT_Y); + } + + public Value setY(Value n) { + return (Value) inputs().set(super.inputCount() + INPUT_Y, n); + } + + /** + * The opcode of this instruction. + */ + public final int opcode; + + /** + * Creates a new Op2 instance. + * @param kind the result type of this instruction + * @param opcode the bytecode opcode + * @param x the first input instruction + * @param y the second input instruction + */ + public Binary(CiKind kind, int opcode, Value x, Value y, int inputCount, int successorCount, Graph graph) { + super(kind, inputCount + INPUT_COUNT, successorCount + SUCCESSOR_COUNT, graph); + this.opcode = opcode; + setX(x); + setY(y); + } + + /** + * Swaps the operands of this instruction. This is only legal for commutative operations. + */ + public void swapOperands() { + assert Bytecodes.isCommutative(opcode); + Value t = x(); + setX(y()); + setY(t); + } + + @Override + public int valueNumber() { + return Util.hash2(opcode, x(), y()); + } + + @Override + public boolean valueEqual(Node i) { + if (i instanceof Binary) { + Binary o = (Binary) i; + return opcode == o.opcode && x() == o.x() && y() == o.y(); + } + return false; + } +}