Mercurial > hg > graal-compiler
view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/replacements/CallSiteTargetNode.java @ 20101:178814b064a7
moved use of GraphUtil.originalValue API into InvocationPlugins to avoid its overhead during canonicalization
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 31 Mar 2015 14:12:23 +0200 |
parents | 8470e81631f8 |
children | 1da7aef31a08 |
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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.hotspot.replacements; import com.oracle.graal.api.meta.*; import com.oracle.graal.graph.*; import com.oracle.graal.graph.spi.*; import com.oracle.graal.hotspot.meta.*; import com.oracle.graal.nodeinfo.*; import com.oracle.graal.nodes.CallTargetNode.InvokeKind; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.replacements.nodes.*; @NodeInfo public final class CallSiteTargetNode extends MacroStateSplitNode implements Canonicalizable, Lowerable { public static final NodeClass<CallSiteTargetNode> TYPE = NodeClass.create(CallSiteTargetNode.class); public CallSiteTargetNode(InvokeKind invokeKind, ResolvedJavaMethod targetMethod, int bci, JavaType returnType, ValueNode receiver) { super(TYPE, invokeKind, targetMethod, bci, returnType, receiver); } private ValueNode getCallSite() { return arguments.get(0); } public static ConstantNode tryFold(ValueNode callSite, MetaAccessProvider metaAccess, Assumptions assumptions) { if (callSite != null && callSite.isConstant() && !callSite.isNullConstant()) { HotSpotObjectConstant c = (HotSpotObjectConstant) callSite.asConstant(); JavaConstant target = c.getCallSiteTarget(assumptions); if (target != null) { return ConstantNode.forConstant(target, metaAccess); } } return null; } @Override public Node canonical(CanonicalizerTool tool) { ConstantNode target = tryFold(getCallSite(), tool.getMetaAccess(), graph().getAssumptions()); if (target != null) { return target; } return this; } @Override public void lower(LoweringTool tool) { ConstantNode target = tryFold(getCallSite(), tool.getMetaAccess(), graph().getAssumptions()); if (target != null) { graph().replaceFixedWithFloating(this, target); } else { InvokeNode invoke = createInvoke(); graph().replaceFixedWithFixed(this, invoke); invoke.lower(tool); } } }