Mercurial > hg > graal-compiler
view graal/GraalCompiler/src/com/sun/c1x/ir/NewInstance.java @ 2653:7c8ad40c1f88
No need for stateAfter on volatile field loads.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 11 May 2011 15:11:33 +0200 |
parents | 4dd0573f510b |
children | 37f067e76c6f |
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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.sun.c1x.ir; import com.oracle.graal.graph.*; import com.sun.c1x.debug.*; import com.sun.cri.ci.*; import com.sun.cri.ri.*; /** * The {@code NewInstance} instruction represents the allocation of an instance class object. */ public final class NewInstance extends StateSplit { private static final int INPUT_COUNT = 0; private static final int SUCCESSOR_COUNT = 0; final RiType instanceClass; public final int cpi; public final RiConstantPool constantPool; /** * Constructs a NewInstance instruction. * @param type the class being allocated * @param cpi the constant pool index * @param stateBefore the state before executing this instruction * @param graph */ public NewInstance(RiType type, int cpi, RiConstantPool constantPool, Graph graph) { super(CiKind.Object, INPUT_COUNT, SUCCESSOR_COUNT, graph); this.instanceClass = type; this.cpi = cpi; this.constantPool = constantPool; setFlag(Flag.NonNull); } /** * Gets the instance class being allocated by this instruction. * @return the instance class allocated */ public RiType instanceClass() { return instanceClass; } /** * Gets the exact type produced by this instruction. For allocations of instance classes, this is * always the class allocated. * @return the exact type produced by this instruction */ @Override public RiType exactType() { return instanceClass; } @Override public boolean canTrap() { return true; } @Override public void accept(ValueVisitor v) { v.visitNewInstance(this); } @Override public void print(LogStream out) { out.print("new instance ").print(CiUtil.toJavaName(instanceClass())); } }