Mercurial > hg > graal-compiler
view graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/nodes/AssumptionNode.java @ 11881:da9db8331658
moved Canonicalizable and Simplifiable to the com.oracle.graal.graph project (GRAAL-506)
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Tue, 01 Oct 2013 20:38:25 +0200 |
parents | 0e2cceed1caf |
children | 51059863da73 |
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/* * Copyright (c) 2013, 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.truffle.nodes; import com.oracle.graal.api.meta.*; import com.oracle.graal.graph.spi.*; import com.oracle.graal.nodes.*; import com.oracle.graal.replacements.nodes.*; import com.oracle.graal.truffle.*; public class AssumptionNode extends MacroNode implements com.oracle.graal.graph.IterableNodeType, Simplifiable { public AssumptionNode(Invoke invoke) { super(invoke); assert super.arguments.size() == 1; } private ValueNode getAssumption() { return arguments.first(); } public void simplify(SimplifierTool tool) { ValueNode assumption = getAssumption(); if (tool.assumptions() != null && assumption.isConstant()) { Constant c = assumption.asConstant(); assert c.getKind() == Kind.Object; Object object = c.asObject(); OptimizedAssumption assumptionObject = (OptimizedAssumption) object; StructuredGraph graph = graph(); if (assumptionObject.isValid()) { tool.assumptions().record(new AssumptionValidAssumption(assumptionObject)); if (super.getReturnType().getKind() == Kind.Boolean) { graph.replaceFixedWithFloating(this, ConstantNode.forBoolean(true, graph())); } else { graph.removeFixed(this); } } else { if (super.getReturnType().getKind() == Kind.Boolean) { graph.replaceFixedWithFloating(this, ConstantNode.forBoolean(false, graph())); } else { tool.deleteBranch(this.next()); this.replaceAndDelete(graph.add(new DeoptimizeNode(DeoptimizationAction.InvalidateRecompile, DeoptimizationReason.None))); } } } } }