Mercurial > hg > truffle
view graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/MacroNode.java @ 9945:abf8c6cc5f50
make MacroNode a memory checkpoint
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Fri, 07 Jun 2013 16:34:44 +0200 |
parents | 19c5a07c7843 |
children | ae6f0c381087 |
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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.replacements.nodes; import static com.oracle.graal.api.meta.LocationIdentity.*; import java.lang.reflect.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.extended.*; import com.oracle.graal.nodes.java.*; import com.oracle.graal.nodes.java.MethodCallTargetNode.InvokeKind; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.phases.common.*; public class MacroNode extends AbstractStateSplit implements Lowerable, MemoryCheckpoint { @Input protected final NodeInputList<ValueNode> arguments; private final int bci; private final ResolvedJavaMethod targetMethod; private final JavaType returnType; protected MacroNode(Invoke invoke) { super(invoke.asNode().stamp(), invoke.stateAfter()); MethodCallTargetNode methodCallTarget = (MethodCallTargetNode) invoke.callTarget(); this.arguments = new NodeInputList<>(this, methodCallTarget.arguments()); this.bci = invoke.bci(); this.targetMethod = methodCallTarget.targetMethod(); this.returnType = methodCallTarget.returnType(); } public int getBci() { return bci; } public ResolvedJavaMethod getTargetMethod() { return targetMethod; } public JavaType getReturnType() { return returnType; } @SuppressWarnings("unused") protected StructuredGraph getSnippetGraph(LoweringTool tool) { return null; } @Override public void lower(LoweringTool tool, LoweringType loweringType) { StructuredGraph snippetGraph = getSnippetGraph(tool); InvokeNode invoke = replaceWithInvoke(); assert invoke.verify(); if (snippetGraph != null) { InliningUtil.inline(invoke, snippetGraph, false); } } private InvokeNode replaceWithInvoke() { InvokeNode invoke = createInvoke(); graph().replaceFixedWithFixed(this, invoke); return invoke; } protected InvokeNode createInvoke() { InvokeKind invokeKind = Modifier.isStatic(targetMethod.getModifiers()) ? InvokeKind.Static : InvokeKind.Special; MethodCallTargetNode callTarget = graph().add(new MethodCallTargetNode(invokeKind, targetMethod, arguments.toArray(new ValueNode[arguments.size()]), returnType)); InvokeNode invoke = graph().add(new InvokeNode(callTarget, bci)); invoke.setStateAfter(stateAfter()); return invoke; } protected void replaceSnippetInvokes(StructuredGraph snippetGraph) { for (InvokeNode invoke : snippetGraph.getNodes(InvokeNode.class)) { if (((MethodCallTargetNode) invoke.callTarget()).targetMethod() != getTargetMethod()) { throw new GraalInternalError("unexpected invoke %s in snippet", getClass().getSimpleName()); } if (invoke.stateAfter().bci == FrameState.INVALID_FRAMESTATE_BCI) { InvokeNode newInvoke = snippetGraph.add(new InvokeNode(invoke.callTarget(), getBci())); newInvoke.setStateAfter(snippetGraph.add(new FrameState(FrameState.AFTER_BCI))); snippetGraph.replaceFixedWithFixed(invoke, newInvoke); } else { assert invoke.stateAfter().bci == FrameState.AFTER_BCI : invoke; } } } @Override public LocationIdentity[] getLocationIdentities() { return new LocationIdentity[]{ANY_LOCATION}; } }