Mercurial > hg > truffle
view graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/inlining/info/TypeGuardInlineInfo.java @ 21556:48c1ebd24120
renamed com.oracle.graal.api[meta|code] modules to com.oracle.jvmci.[meta|code] (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 27 May 2015 00:36:16 +0200 |
parents | 8ab925a6f724 |
children |
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/* * Copyright (c) 2013, 2014, 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 com.oracle.jvmci.meta.ResolvedJavaType; import com.oracle.jvmci.meta.DeoptimizationReason; import com.oracle.jvmci.meta.DeoptimizationAction; import com.oracle.jvmci.meta.ResolvedJavaMethod; import java.util.*; import com.oracle.graal.compiler.common.calc.*; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.CallTargetNode.InvokeKind; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.calc.*; import com.oracle.graal.nodes.extended.*; import com.oracle.graal.phases.common.inlining.*; import com.oracle.graal.phases.common.inlining.info.elem.*; import com.oracle.graal.phases.util.*; /** * 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.isConcrete() : 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) { createGuard(graph(), providers); return inline(invoke, concrete, inlineableElement, false); } @Override public void tryToDevirtualizeInvoke(Providers providers) { createGuard(graph(), providers); InliningUtil.replaceInvokeCallTarget(invoke, graph(), InvokeKind.Special, concrete); } private void createGuard(StructuredGraph graph, Providers providers) { ValueNode nonNullReceiver = InliningUtil.nonNullReceiver(invoke); LoadHubNode receiverHub = graph.unique(new LoadHubNode(providers.getStampProvider(), nonNullReceiver)); ConstantNode typeHub = ConstantNode.forConstant(receiverHub.stamp(), type.getObjectHub(), providers.getMetaAccess(), graph); LogicNode typeCheck = CompareNode.createCompareNode(graph, Condition.EQ, receiverHub, typeHub, providers.getConstantReflection()); FixedGuardNode guard = graph.add(new FixedGuardNode(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(); } }