Mercurial > hg > truffle
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/ReturnNode.java @ 15001:27c04ee36dcb
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author | Lukas Stadler <lukas.stadler@oracle.com> |
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date | Mon, 07 Apr 2014 11:32:04 +0200 |
parents | d5a1206e1923 |
children | 3498761a33d8 |
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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; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.nodes.type.*; public final class ReturnNode extends ControlSinkNode implements LIRLowerable, IterableNodeType { @Input private ValueNode result; @Input(InputType.Association) private MemoryMapNode memoryMap; public ValueNode result() { return result; } /** * Constructs a new Return instruction. * * @param result the instruction producing the result for this return; {@code null} if this is a * void return */ public ReturnNode(ValueNode result) { this(result, null); } public ReturnNode(ValueNode result, MemoryMapNode memoryMap) { super(StampFactory.forVoid()); this.result = result; this.memoryMap = memoryMap; } @Override public boolean verify() { return super.verify(); } @Override public void generate(NodeLIRBuilderTool gen) { if (this.result() == null) { gen.getLIRGeneratorTool().emitReturn(null); } else { gen.getLIRGeneratorTool().emitReturn(gen.operand(this.result())); } } public void setMemoryMap(MemoryMapNode memoryMap) { updateUsages(this.memoryMap, memoryMap); this.memoryMap = memoryMap; } public MemoryMapNode getMemoryMap() { return memoryMap; } }