Mercurial > hg > graal-compiler
view graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/inlining/info/TypeGuardInlineInfo.java @ 16895:06c15e88d383
added factory method to all Node classes; replaced Node classes instantiation with calls to factory methods; replaced identity tests on Node classes with ' == <node class>.getGenClass()' idiom
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 18 Aug 2014 14:04:21 +0200 |
parents | 1e63cb55f61d |
children | 6ac7e9c85be6 |
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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.phases.common.inlining.info; import java.util.*; import com.oracle.graal.api.code.Assumptions; import com.oracle.graal.api.meta.*; import com.oracle.graal.compiler.common.calc.Condition; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.CallTargetNode.InvokeKind; import com.oracle.graal.nodes.calc.CompareNode; import com.oracle.graal.nodes.extended.LoadHubNode; import com.oracle.graal.phases.common.inlining.InliningUtil; import com.oracle.graal.phases.common.inlining.info.elem.Inlineable; import com.oracle.graal.phases.util.Providers; /** * Represents an inlining opportunity for which profiling information suggests a monomorphic * receiver, but for which the receiver type cannot be proven. A type check guard will be generated * if this inlining is performed. */ public class TypeGuardInlineInfo extends AbstractInlineInfo { private final ResolvedJavaMethod concrete; private final ResolvedJavaType type; private Inlineable inlineableElement; public TypeGuardInlineInfo(Invoke invoke, ResolvedJavaMethod concrete, ResolvedJavaType type) { super(invoke); this.concrete = concrete; this.type = type; assert type.isArray() || !type.isAbstract() : type; } @Override public int numberOfMethods() { return 1; } @Override public ResolvedJavaMethod methodAt(int index) { assert index == 0; return concrete; } @Override public Inlineable inlineableElementAt(int index) { assert index == 0; return inlineableElement; } @Override public double probabilityAt(int index) { assert index == 0; return 1.0; } @Override public double relevanceAt(int index) { assert index == 0; return 1.0; } @Override public void setInlinableElement(int index, Inlineable inlineableElement) { assert index == 0; this.inlineableElement = inlineableElement; } @Override public Collection<Node> inline(Providers providers, Assumptions assumptions) { createGuard(graph(), providers.getMetaAccess()); return inline(invoke, concrete, inlineableElement, assumptions, false); } @Override public void tryToDevirtualizeInvoke(MetaAccessProvider metaAccess, Assumptions assumptions) { createGuard(graph(), metaAccess); InliningUtil.replaceInvokeCallTarget(invoke, graph(), InvokeKind.Special, concrete); } private void createGuard(StructuredGraph graph, MetaAccessProvider metaAccess) { ValueNode nonNullReceiver = InliningUtil.nonNullReceiver(invoke); ConstantNode typeHub = ConstantNode.forConstant(type.getEncoding(ResolvedJavaType.Representation.ObjectHub), metaAccess, graph); LoadHubNode receiverHub = graph.unique(LoadHubNode.create(nonNullReceiver, typeHub.getKind())); CompareNode typeCheck = CompareNode.createCompareNode(graph, Condition.EQ, receiverHub, typeHub); FixedGuardNode guard = graph.add(FixedGuardNode.create(typeCheck, DeoptimizationReason.TypeCheckedInliningViolated, DeoptimizationAction.InvalidateReprofile)); assert invoke.predecessor() != null; ValueNode anchoredReceiver = InliningUtil.createAnchoredReceiver(graph, guard, type, nonNullReceiver, true); invoke.callTarget().replaceFirstInput(nonNullReceiver, anchoredReceiver); graph.addBeforeFixed(invoke.asNode(), guard); } @Override public String toString() { return "type-checked with type " + type.getName() + " and method " + concrete.format("%H.%n(%p):%r"); } public boolean shouldInline() { return concrete.shouldBeInlined(); } }