Mercurial > hg > truffle
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/JavaReadNode.java @ 19526:8fc336a04d77
Create TYPE fields for LIRInstruction and CompositeValue. Renaming NodeClass#get to NodeClass#create.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Fri, 20 Feb 2015 22:22:55 +0100 |
parents | 61d3cb8e1280 |
children | cba35d171cd1 |
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/* * Copyright (c) 2014, 2015, 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.extended; import com.oracle.graal.api.meta.*; import com.oracle.graal.compiler.common.type.*; import com.oracle.graal.graph.*; import com.oracle.graal.graph.spi.*; import com.oracle.graal.nodeinfo.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.*; /** * Read a raw memory location according to Java field or array read semantics. It will perform read * barriers, implicit conversions and optionally oop uncompression. */ @NodeInfo public final class JavaReadNode extends FixedAccessNode implements Lowerable, GuardingNode, Canonicalizable { public static final NodeClass<JavaReadNode> TYPE = NodeClass.create(JavaReadNode.class); protected final Kind readKind; protected final boolean compressible; public JavaReadNode(Kind readKind, ValueNode object, LocationNode location, BarrierType barrierType, boolean compressible) { super(TYPE, object, location, StampFactory.forKind(readKind), barrierType); this.readKind = readKind; this.compressible = compressible; } public void lower(LoweringTool tool) { tool.getLowerer().lower(this, tool); } public boolean canNullCheck() { return true; } public Kind getReadKind() { return readKind; } public boolean isCompressible() { return compressible; } @Override public Node canonical(CanonicalizerTool tool) { return ReadNode.canonicalizeRead(this, location(), object(), tool); } }