Mercurial > hg > graal-compiler
diff graal/GraalCompiler/src/com/sun/c1x/ir/Deoptimize.java @ 2671:d8601d421b96
New Deoptimize node, remove ResolveClass node and replace it with deoptimization
author | Gilles Duboscq <gilles.duboscq@oracle.com> |
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date | Thu, 12 May 2011 17:17:50 +0200 |
parents | |
children | 7b7dbe19fafb |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/GraalCompiler/src/com/sun/c1x/ir/Deoptimize.java Thu May 12 17:17:50 2011 +0200 @@ -0,0 +1,82 @@ +/* + * 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.c1x.value.*; +import com.sun.cri.ci.*; + + +/** + * + */ +public class Deoptimize extends Instruction { + + private static final int INPUT_COUNT = 1; + private static final int SUCCESSOR_COUNT = 0; + private static final int INPUT_STATE_BEFORE = 0; + + /** + * @param kind + * @param inputCount + * @param successorCount + * @param graph + */ + public Deoptimize(Graph graph, FrameState stateBefore) { + super(CiKind.Illegal, INPUT_COUNT, SUCCESSOR_COUNT, graph); + this.setStateBefore(stateBefore); + } + + @Override + protected int inputCount() { + return super.inputCount() + INPUT_COUNT; + } + + @Override + protected int successorCount() { + return super.successorCount() + SUCCESSOR_COUNT; + } + + /** + * The state for this instruction. + */ + public FrameState stateBefore() { + return (FrameState) inputs().get(super.inputCount() + INPUT_STATE_BEFORE); + } + + public FrameState setStateBefore(FrameState n) { + return (FrameState) inputs().set(super.inputCount() + INPUT_STATE_BEFORE, n); + } + + @Override + public void accept(ValueVisitor v) { + v.visitDeoptimize(this); + } + + @Override + public void print(LogStream out) { + out.print("deoptimize"); + } + +}