Mercurial > hg > graal-compiler
view graal/com.oracle.max.graal.nodes/src/com/oracle/graal/nodes/calc/ConditionalNode.java @ 5060:4ed4295ce15f
Update import statements.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Thu, 08 Mar 2012 19:11:12 +0100 |
parents | ed559a528128 |
children |
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/* * 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.oracle.graal.nodes.calc; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.*; /** * The {@code ConditionalNode} class represents a comparison that yields one of two values. Note that these nodes are not * built directly from the bytecode but are introduced by canonicalization. */ public class ConditionalNode extends BinaryNode implements Canonicalizable, LIRLowerable { @Input private BooleanNode condition; public BooleanNode condition() { return condition; } public ConditionalNode(BooleanNode condition, ValueNode trueValue, ValueNode falseValue) { super(trueValue.kind(), trueValue, falseValue); assert trueValue.kind() == falseValue.kind(); this.condition = condition; } public ValueNode trueValue() { return x(); } public ValueNode falseValue() { return y(); } @Override public ValueNode canonical(CanonicalizerTool tool) { if (condition instanceof ConstantNode) { ConstantNode c = (ConstantNode) condition; if (c.asConstant().asBoolean()) { return trueValue(); } else { return falseValue(); } } if (trueValue() == falseValue()) { return trueValue(); } return this; } @Override public void generate(LIRGeneratorTool generator) { generator.emitConditional(this); } }