--- /dev/null 2016-05-31 09:42:47.975716356 -0700 +++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.replacements/src/org/graalvm/compiler/replacements/nodes/MacroStateSplitNode.java 2016-12-09 00:57:10.055622295 -0800 @@ -0,0 +1,93 @@ +/* + * Copyright (c) 2013, 2016, 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 org.graalvm.compiler.replacements.nodes; + +import org.graalvm.compiler.core.common.LocationIdentity; +import org.graalvm.compiler.core.common.type.StampPair; +import org.graalvm.compiler.debug.GraalError; +import org.graalvm.compiler.graph.NodeClass; +import org.graalvm.compiler.nodeinfo.InputType; +import org.graalvm.compiler.nodeinfo.NodeInfo; +import org.graalvm.compiler.nodes.CallTargetNode.InvokeKind; +import org.graalvm.compiler.nodes.FrameState; +import org.graalvm.compiler.nodes.Invoke; +import org.graalvm.compiler.nodes.InvokeNode; +import org.graalvm.compiler.nodes.StateSplit; +import org.graalvm.compiler.nodes.StructuredGraph; +import org.graalvm.compiler.nodes.ValueNode; +import org.graalvm.compiler.nodes.java.MethodCallTargetNode; +import org.graalvm.compiler.nodes.memory.MemoryCheckpoint; + +import jdk.vm.ci.code.BytecodeFrame; +import jdk.vm.ci.meta.ResolvedJavaMethod; + +/** + * This is an extension of {@link MacroNode} that is a {@link StateSplit} and a + * {@link MemoryCheckpoint}. + */ +@NodeInfo +public abstract class MacroStateSplitNode extends MacroNode implements StateSplit, MemoryCheckpoint.Single { + + public static final NodeClass TYPE = NodeClass.create(MacroStateSplitNode.class); + @OptionalInput(InputType.State) protected FrameState stateAfter; + + protected MacroStateSplitNode(NodeClass c, InvokeKind invokeKind, ResolvedJavaMethod targetMethod, int bci, StampPair returnStamp, ValueNode... arguments) { + super(c, invokeKind, targetMethod, bci, returnStamp, arguments); + } + + @Override + public FrameState stateAfter() { + return stateAfter; + } + + @Override + public void setStateAfter(FrameState x) { + assert x == null || x.isAlive() : "frame state must be in a graph"; + updateUsages(stateAfter, x); + stateAfter = x; + } + + @Override + public boolean hasSideEffect() { + return true; + } + + @Override + public LocationIdentity getLocationIdentity() { + return LocationIdentity.any(); + } + + protected void replaceSnippetInvokes(StructuredGraph snippetGraph) { + for (MethodCallTargetNode call : snippetGraph.getNodes(MethodCallTargetNode.TYPE)) { + Invoke invoke = call.invoke(); + if (!call.targetMethod().equals(getTargetMethod())) { + throw new GraalError("unexpected invoke %s in snippet", getClass().getSimpleName()); + } + assert invoke.stateAfter().bci == BytecodeFrame.AFTER_BCI; + // Here we need to fix the bci of the invoke + InvokeNode newInvoke = snippetGraph.add(new InvokeNode(invoke.callTarget(), getBci())); + newInvoke.setStateAfter(invoke.stateAfter()); + snippetGraph.replaceFixedWithFixed((InvokeNode) invoke.asNode(), newInvoke); + } + } +}