--- /dev/null 2016-05-31 09:42:47.975716356 -0700 +++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/nodes/SaveAllRegistersNode.java 2016-12-07 13:50:26.619957330 -0800 @@ -0,0 +1,76 @@ +/* + * 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.hotspot.nodes; + +import jdk.vm.ci.meta.JavaKind; + +import org.graalvm.compiler.core.common.LocationIdentity; +import org.graalvm.compiler.core.common.type.StampFactory; +import org.graalvm.compiler.graph.NodeClass; +import org.graalvm.compiler.hotspot.HotSpotLIRGenerator; +import org.graalvm.compiler.lir.StandardOp.SaveRegistersOp; +import org.graalvm.compiler.nodeinfo.InputType; +import org.graalvm.compiler.nodeinfo.NodeInfo; +import org.graalvm.compiler.nodes.FixedWithNextNode; +import org.graalvm.compiler.nodes.memory.MemoryCheckpoint; +import org.graalvm.compiler.nodes.spi.LIRLowerable; +import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool; + +/** + * Saves all allocatable registers. + */ +@NodeInfo(allowedUsageTypes = {InputType.Memory}) +public final class SaveAllRegistersNode extends FixedWithNextNode implements LIRLowerable, MemoryCheckpoint.Single { + + public static final NodeClass TYPE = NodeClass.create(SaveAllRegistersNode.class); + protected SaveRegistersOp saveRegistersOp; + + public SaveAllRegistersNode() { + super(TYPE, StampFactory.forKind(JavaKind.Long)); + } + + @Override + public void generate(NodeLIRBuilderTool gen) { + saveRegistersOp = ((HotSpotLIRGenerator) gen.getLIRGeneratorTool()).emitSaveAllRegisters(); + } + + /** + * @return the map from registers to the stack locations in they are saved + */ + public SaveRegistersOp getSaveRegistersOp() { + assert saveRegistersOp != null : "saved registers op has not yet been created"; + return saveRegistersOp; + } + + /** + * @return a token that couples this node to an {@link UncommonTrapCallNode} so that the latter + * has access to the {@linkplain SaveRegistersOp#getMap register save map} + */ + @NodeIntrinsic + public static native long saveAllRegisters(); + + @Override + public LocationIdentity getLocationIdentity() { + return LocationIdentity.any(); + } +}